/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_lcr.7.1.ufo.BOUNDED-14.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:33:36,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:33:36,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:33:36,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:33:36,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:33:36,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:33:36,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:33:36,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:33:36,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:33:36,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:33:36,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:33:36,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:33:36,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:33:36,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:33:36,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:33:36,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:33:36,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:33:36,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:33:36,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:33:36,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:33:36,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:33:36,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:33:36,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:33:36,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:33:36,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:33:36,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:33:36,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:33:36,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:33:36,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:33:36,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:33:36,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:33:36,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:33:36,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:33:36,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:33:36,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:33:36,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:33:36,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:33:36,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:33:36,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:33:36,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:33:36,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:33:36,336 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 01:33:36,358 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:33:36,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:33:36,359 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:33:36,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:33:36,360 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:33:36,360 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:33:36,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:33:36,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:33:36,360 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:33:36,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:33:36,361 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:33:36,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:33:36,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:33:36,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:33:36,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:33:36,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:33:36,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:33:36,362 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:33:36,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:33:36,362 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:33:36,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:33:36,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:33:36,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:33:36,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:33:36,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:33:36,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:33:36,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:33:36,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:33:36,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:33:36,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:33:36,363 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:33:36,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:33:36,363 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:33:36,363 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:33:36,363 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:33:36,364 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:33:36,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:33:36,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:33:36,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:33:36,565 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:33:36,566 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:33:36,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2023-03-31 01:33:37,501 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:33:37,728 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:33:37,729 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2023-03-31 01:33:37,739 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a401904b1/1a1d87a8d9254d0a94444f67a7a072b9/FLAG7db2e5911 [2023-03-31 01:33:37,754 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a401904b1/1a1d87a8d9254d0a94444f67a7a072b9 [2023-03-31 01:33:37,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:33:37,756 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:33:37,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:33:37,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:33:37,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:33:37,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:33:37" (1/1) ... [2023-03-31 01:33:37,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58f881fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:37, skipping insertion in model container [2023-03-31 01:33:37,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:33:37" (1/1) ... [2023-03-31 01:33:37,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:33:37,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:33:37,931 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_lcr.7.1.ufo.BOUNDED-14.pals.c[20056,20069] [2023-03-31 01:33:37,934 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:33:37,943 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:33:38,007 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_lcr.7.1.ufo.BOUNDED-14.pals.c[20056,20069] [2023-03-31 01:33:38,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:33:38,018 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:33:38,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:38 WrapperNode [2023-03-31 01:33:38,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:33:38,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:33:38,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:33:38,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:33:38,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:38" (1/1) ... [2023-03-31 01:33:38,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:38" (1/1) ... [2023-03-31 01:33:38,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:38" (1/1) ... [2023-03-31 01:33:38,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:38" (1/1) ... [2023-03-31 01:33:38,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:38" (1/1) ... [2023-03-31 01:33:38,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:38" (1/1) ... [2023-03-31 01:33:38,068 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:38" (1/1) ... [2023-03-31 01:33:38,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:38" (1/1) ... [2023-03-31 01:33:38,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:33:38,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:33:38,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:33:38,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:33:38,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:38" (1/1) ... [2023-03-31 01:33:38,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:33:38,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:33:38,101 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 01:33:38,117 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 01:33:38,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:33:38,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:33:38,127 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:33:38,127 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 01:33:38,127 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-03-31 01:33:38,127 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-03-31 01:33:38,127 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-03-31 01:33:38,127 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-03-31 01:33:38,127 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-03-31 01:33:38,127 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2023-03-31 01:33:38,127 INFO L138 BoogieDeclarations]: Found implementation of procedure node7 [2023-03-31 01:33:38,127 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-03-31 01:33:38,128 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-03-31 01:33:38,128 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:33:38,128 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-03-31 01:33:38,128 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:33:38,128 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:33:38,128 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:33:38,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:33:38,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:33:38,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:33:38,128 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:33:38,128 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 01:33:38,128 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-31 01:33:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-03-31 01:33:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-03-31 01:33:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-03-31 01:33:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-03-31 01:33:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-03-31 01:33:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-03-31 01:33:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2023-03-31 01:33:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2023-03-31 01:33:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 01:33:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 01:33:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:33:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:33:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:33:38,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:33:38,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:33:38,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:33:38,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:33:38,220 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:33:38,222 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:33:38,623 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:33:38,629 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:33:38,629 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 01:33:38,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:33:38 BoogieIcfgContainer [2023-03-31 01:33:38,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:33:38,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:33:38,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:33:38,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:33:38,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:33:37" (1/3) ... [2023-03-31 01:33:38,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31753bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:33:38, skipping insertion in model container [2023-03-31 01:33:38,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:38" (2/3) ... [2023-03-31 01:33:38,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31753bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:33:38, skipping insertion in model container [2023-03-31 01:33:38,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:33:38" (3/3) ... [2023-03-31 01:33:38,637 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2023-03-31 01:33:38,648 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:33:38,648 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:33:38,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:33:38,694 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;@4ab9aa22, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:33:38,695 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:33:38,698 INFO L276 IsEmpty]: Start isEmpty. Operand has 157 states, 129 states have (on average 1.682170542635659) internal successors, (217), 130 states have internal predecessors, (217), 13 states have call successors, (13), 13 states have call predecessors, (13), 13 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-03-31 01:33:38,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-03-31 01:33:38,708 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:33:38,709 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] [2023-03-31 01:33:38,710 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:33:38,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:33:38,714 INFO L85 PathProgramCache]: Analyzing trace with hash 13623360, now seen corresponding path program 1 times [2023-03-31 01:33:38,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:33:38,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795107122] [2023-03-31 01:33:38,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:33:38,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:33:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:39,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:33:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:39,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:33:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:39,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 01:33:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:39,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-03-31 01:33:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:39,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-03-31 01:33:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:39,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 01:33:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:39,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-03-31 01:33:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:39,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-03-31 01:33:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:39,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-03-31 01:33:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:39,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-03-31 01:33:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:39,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-03-31 01:33:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:39,568 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 01:33:39,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:33:39,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795107122] [2023-03-31 01:33:39,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795107122] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:33:39,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:33:39,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-03-31 01:33:39,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836105654] [2023-03-31 01:33:39,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:33:39,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-03-31 01:33:39,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:33:39,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-03-31 01:33:39,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:33:39,614 INFO L87 Difference]: Start difference. First operand has 157 states, 129 states have (on average 1.682170542635659) internal successors, (217), 130 states have internal predecessors, (217), 13 states have call successors, (13), 13 states have call predecessors, (13), 13 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-03-31 01:33:41,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:33:41,617 INFO L93 Difference]: Finished difference Result 267 states and 403 transitions. [2023-03-31 01:33:41,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 01:33:41,620 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 67 [2023-03-31 01:33:41,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:33:41,630 INFO L225 Difference]: With dead ends: 267 [2023-03-31 01:33:41,630 INFO L226 Difference]: Without dead ends: 165 [2023-03-31 01:33:41,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2023-03-31 01:33:41,636 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 1092 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:33:41,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 226 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-03-31 01:33:41,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-03-31 01:33:41,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 152. [2023-03-31 01:33:41,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 126 states have internal predecessors, (160), 13 states have call successors, (13), 13 states have call predecessors, (13), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-03-31 01:33:41,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 185 transitions. [2023-03-31 01:33:41,694 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 185 transitions. Word has length 67 [2023-03-31 01:33:41,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:33:41,695 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 185 transitions. [2023-03-31 01:33:41,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-03-31 01:33:41,695 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 185 transitions. [2023-03-31 01:33:41,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-03-31 01:33:41,698 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:33:41,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:33:41,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:33:41,698 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:33:41,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:33:41,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1997843926, now seen corresponding path program 1 times [2023-03-31 01:33:41,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:33:41,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221723924] [2023-03-31 01:33:41,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:33:41,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:33:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:42,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:33:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:42,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:33:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:42,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-03-31 01:33:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:42,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-03-31 01:33:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:42,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:33:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:42,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:33:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 01:33:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:42,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-03-31 01:33:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:42,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-03-31 01:33:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:42,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-03-31 01:33:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:42,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:33:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:42,531 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 01:33:42,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:33:42,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221723924] [2023-03-31 01:33:42,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221723924] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:33:42,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:33:42,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-03-31 01:33:42,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579296342] [2023-03-31 01:33:42,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:33:42,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-03-31 01:33:42,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:33:42,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-03-31 01:33:42,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2023-03-31 01:33:42,535 INFO L87 Difference]: Start difference. First operand 152 states and 185 transitions. Second operand has 25 states, 25 states have (on average 3.68) internal successors, (92), 17 states have internal predecessors, (92), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-03-31 01:34:02,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:34:02,838 INFO L93 Difference]: Finished difference Result 1975 states and 2826 transitions. [2023-03-31 01:34:02,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2023-03-31 01:34:02,839 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.68) internal successors, (92), 17 states have internal predecessors, (92), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 116 [2023-03-31 01:34:02,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:34:02,852 INFO L225 Difference]: With dead ends: 1975 [2023-03-31 01:34:02,852 INFO L226 Difference]: Without dead ends: 1891 [2023-03-31 01:34:02,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21894 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=7424, Invalid=48982, Unknown=0, NotChecked=0, Total=56406 [2023-03-31 01:34:02,877 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 4301 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 10120 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4318 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 10553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 10120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-03-31 01:34:02,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4318 Valid, 682 Invalid, 10553 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [433 Valid, 10120 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-03-31 01:34:02,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2023-03-31 01:34:03,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 596. [2023-03-31 01:34:03,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 466 states have (on average 1.407725321888412) internal successors, (656), 480 states have internal predecessors, (656), 58 states have call successors, (58), 58 states have call predecessors, (58), 71 states have return successors, (103), 57 states have call predecessors, (103), 57 states have call successors, (103) [2023-03-31 01:34:03,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 817 transitions. [2023-03-31 01:34:03,013 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 817 transitions. Word has length 116 [2023-03-31 01:34:03,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:34:03,014 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 817 transitions. [2023-03-31 01:34:03,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.68) internal successors, (92), 17 states have internal predecessors, (92), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-03-31 01:34:03,014 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 817 transitions. [2023-03-31 01:34:03,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-03-31 01:34:03,021 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:34:03,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:34:03,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:34:03,021 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:34:03,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:34:03,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1986891130, now seen corresponding path program 1 times [2023-03-31 01:34:03,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:34:03,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320489810] [2023-03-31 01:34:03,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:34:03,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:34:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:03,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:34:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:03,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:34:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:03,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-03-31 01:34:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:03,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-03-31 01:34:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:03,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:34:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:03,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:34:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:03,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 01:34:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:03,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-03-31 01:34:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:03,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-03-31 01:34:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:03,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-03-31 01:34:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:03,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:34:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:03,452 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 01:34:03,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:34:03,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320489810] [2023-03-31 01:34:03,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320489810] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:34:03,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:34:03,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-03-31 01:34:03,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805461539] [2023-03-31 01:34:03,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:34:03,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 01:34:03,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:34:03,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 01:34:03,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-03-31 01:34:03,454 INFO L87 Difference]: Start difference. First operand 596 states and 817 transitions. Second operand has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (13), 10 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-03-31 01:34:05,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:34:05,860 INFO L93 Difference]: Finished difference Result 1871 states and 2636 transitions. [2023-03-31 01:34:05,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-03-31 01:34:05,860 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (13), 10 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 118 [2023-03-31 01:34:05,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:34:05,867 INFO L225 Difference]: With dead ends: 1871 [2023-03-31 01:34:05,867 INFO L226 Difference]: Without dead ends: 1343 [2023-03-31 01:34:05,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2023-03-31 01:34:05,875 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 1826 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1835 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:34:05,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1835 Valid, 130 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 01:34:05,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2023-03-31 01:34:06,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1339. [2023-03-31 01:34:06,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1023 states have (on average 1.4173998044965788) internal successors, (1450), 1061 states have internal predecessors, (1450), 139 states have call successors, (139), 139 states have call predecessors, (139), 176 states have return successors, (272), 138 states have call predecessors, (272), 138 states have call successors, (272) [2023-03-31 01:34:06,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1861 transitions. [2023-03-31 01:34:06,073 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1861 transitions. Word has length 118 [2023-03-31 01:34:06,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:34:06,076 INFO L495 AbstractCegarLoop]: Abstraction has 1339 states and 1861 transitions. [2023-03-31 01:34:06,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (13), 10 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-03-31 01:34:06,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1861 transitions. [2023-03-31 01:34:06,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-03-31 01:34:06,082 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:34:06,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:34:06,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:34:06,083 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:34:06,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:34:06,084 INFO L85 PathProgramCache]: Analyzing trace with hash 699188674, now seen corresponding path program 1 times [2023-03-31 01:34:06,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:34:06,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419612030] [2023-03-31 01:34:06,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:34:06,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:34:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:06,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:34:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:06,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:34:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:06,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-03-31 01:34:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:06,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-03-31 01:34:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:06,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:34:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:06,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:34:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:06,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 01:34:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:06,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-03-31 01:34:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:07,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-03-31 01:34:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:07,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-03-31 01:34:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:07,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:34:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:07,105 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 01:34:07,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:34:07,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419612030] [2023-03-31 01:34:07,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419612030] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:34:07,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:34:07,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-03-31 01:34:07,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679765514] [2023-03-31 01:34:07,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:34:07,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-03-31 01:34:07,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:34:07,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-03-31 01:34:07,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2023-03-31 01:34:07,107 INFO L87 Difference]: Start difference. First operand 1339 states and 1861 transitions. Second operand has 25 states, 25 states have (on average 3.76) internal successors, (94), 17 states have internal predecessors, (94), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-03-31 01:34:27,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:34:27,561 INFO L93 Difference]: Finished difference Result 7412 states and 10649 transitions. [2023-03-31 01:34:27,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 216 states. [2023-03-31 01:34:27,562 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 17 states have internal predecessors, (94), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 118 [2023-03-31 01:34:27,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:34:27,581 INFO L225 Difference]: With dead ends: 7412 [2023-03-31 01:34:27,581 INFO L226 Difference]: Without dead ends: 6141 [2023-03-31 01:34:27,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21730 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=7284, Invalid=47706, Unknown=0, NotChecked=0, Total=54990 [2023-03-31 01:34:27,609 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 4973 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 8884 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4991 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 9458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 8884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:34:27,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4991 Valid, 656 Invalid, 9458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 8884 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-03-31 01:34:27,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6141 states. [2023-03-31 01:34:28,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6141 to 6045. [2023-03-31 01:34:28,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6045 states, 4616 states have (on average 1.4525563258232235) internal successors, (6705), 4725 states have internal predecessors, (6705), 660 states have call successors, (660), 660 states have call predecessors, (660), 768 states have return successors, (1324), 659 states have call predecessors, (1324), 659 states have call successors, (1324) [2023-03-31 01:34:28,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6045 states to 6045 states and 8689 transitions. [2023-03-31 01:34:28,888 INFO L78 Accepts]: Start accepts. Automaton has 6045 states and 8689 transitions. Word has length 118 [2023-03-31 01:34:28,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:34:28,889 INFO L495 AbstractCegarLoop]: Abstraction has 6045 states and 8689 transitions. [2023-03-31 01:34:28,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.76) internal successors, (94), 17 states have internal predecessors, (94), 3 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-03-31 01:34:28,890 INFO L276 IsEmpty]: Start isEmpty. Operand 6045 states and 8689 transitions. [2023-03-31 01:34:28,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-03-31 01:34:28,893 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:34:28,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:34:28,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:34:28,893 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:34:28,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:34:28,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2093451058, now seen corresponding path program 1 times [2023-03-31 01:34:28,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:34:28,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640041506] [2023-03-31 01:34:28,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:34:28,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:34:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:29,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:34:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:29,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:34:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:29,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-03-31 01:34:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:29,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-03-31 01:34:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:29,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:34:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:29,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:34:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:29,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 01:34:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:29,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-03-31 01:34:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:29,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-03-31 01:34:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:29,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-03-31 01:34:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:29,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:34:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:29,565 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 01:34:29,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:34:29,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640041506] [2023-03-31 01:34:29,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640041506] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:34:29,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:34:29,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-03-31 01:34:29,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401787163] [2023-03-31 01:34:29,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:34:29,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-03-31 01:34:29,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:34:29,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-03-31 01:34:29,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2023-03-31 01:34:29,567 INFO L87 Difference]: Start difference. First operand 6045 states and 8689 transitions. Second operand has 20 states, 18 states have (on average 5.277777777777778) internal successors, (95), 9 states have internal predecessors, (95), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-03-31 01:34:32,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:34:32,700 INFO L93 Difference]: Finished difference Result 6499 states and 9731 transitions. [2023-03-31 01:34:32,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-03-31 01:34:32,701 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 5.277777777777778) internal successors, (95), 9 states have internal predecessors, (95), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 119 [2023-03-31 01:34:32,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:34:32,726 INFO L225 Difference]: With dead ends: 6499 [2023-03-31 01:34:32,726 INFO L226 Difference]: Without dead ends: 6497 [2023-03-31 01:34:32,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=225, Invalid=897, Unknown=0, NotChecked=0, Total=1122 [2023-03-31 01:34:32,728 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 604 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 2237 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 2263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:34:32,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 374 Invalid, 2263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2237 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-03-31 01:34:32,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6497 states. [2023-03-31 01:34:33,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6497 to 6108. [2023-03-31 01:34:33,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6108 states, 4658 states have (on average 1.445684843280378) internal successors, (6734), 4774 states have internal predecessors, (6734), 667 states have call successors, (667), 667 states have call predecessors, (667), 782 states have return successors, (1345), 666 states have call predecessors, (1345), 666 states have call successors, (1345) [2023-03-31 01:34:33,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6108 states to 6108 states and 8746 transitions. [2023-03-31 01:34:33,720 INFO L78 Accepts]: Start accepts. Automaton has 6108 states and 8746 transitions. Word has length 119 [2023-03-31 01:34:33,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:34:33,720 INFO L495 AbstractCegarLoop]: Abstraction has 6108 states and 8746 transitions. [2023-03-31 01:34:33,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 5.277777777777778) internal successors, (95), 9 states have internal predecessors, (95), 3 states have call successors, (13), 10 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-03-31 01:34:33,720 INFO L276 IsEmpty]: Start isEmpty. Operand 6108 states and 8746 transitions. [2023-03-31 01:34:33,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-03-31 01:34:33,723 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:34:33,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:34:33,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:34:33,724 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:34:33,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:34:33,724 INFO L85 PathProgramCache]: Analyzing trace with hash -327103966, now seen corresponding path program 1 times [2023-03-31 01:34:33,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:34:33,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72271309] [2023-03-31 01:34:33,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:34:33,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:34:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:33,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:34:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:33,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:34:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:33,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-03-31 01:34:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:33,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-03-31 01:34:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:34,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-03-31 01:34:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:34,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-03-31 01:34:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:34,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-03-31 01:34:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:34,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-03-31 01:34:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:34,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-03-31 01:34:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:34,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-03-31 01:34:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:34,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-03-31 01:34:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:34,144 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 01:34:34,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:34:34,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72271309] [2023-03-31 01:34:34,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72271309] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:34:34,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:34:34,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-03-31 01:34:34,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787537702] [2023-03-31 01:34:34,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:34:34,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-03-31 01:34:34,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:34:34,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-03-31 01:34:34,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-03-31 01:34:34,146 INFO L87 Difference]: Start difference. First operand 6108 states and 8746 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 5 states have call successors, (11) [2023-03-31 01:34:38,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:34:38,532 INFO L93 Difference]: Finished difference Result 12421 states and 17880 transitions. [2023-03-31 01:34:38,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-03-31 01:34:38,532 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2023-03-31 01:34:38,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:34:38,556 INFO L225 Difference]: With dead ends: 12421 [2023-03-31 01:34:38,556 INFO L226 Difference]: Without dead ends: 7986 [2023-03-31 01:34:38,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2023-03-31 01:34:38,564 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2232 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2232 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:34:38,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2232 Valid, 90 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 01:34:38,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7986 states. [2023-03-31 01:34:39,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7986 to 7047. [2023-03-31 01:34:39,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7047 states, 5377 states have (on average 1.4554584340710432) internal successors, (7826), 5526 states have internal predecessors, (7826), 761 states have call successors, (761), 761 states have call predecessors, (761), 908 states have return successors, (1536), 759 states have call predecessors, (1536), 760 states have call successors, (1536) [2023-03-31 01:34:39,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7047 states to 7047 states and 10123 transitions. [2023-03-31 01:34:39,794 INFO L78 Accepts]: Start accepts. Automaton has 7047 states and 10123 transitions. Word has length 120 [2023-03-31 01:34:39,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:34:39,795 INFO L495 AbstractCegarLoop]: Abstraction has 7047 states and 10123 transitions. [2023-03-31 01:34:39,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 5 states have call successors, (11) [2023-03-31 01:34:39,795 INFO L276 IsEmpty]: Start isEmpty. Operand 7047 states and 10123 transitions. [2023-03-31 01:34:39,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-03-31 01:34:39,798 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:34:39,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:34:39,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 01:34:39,798 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:34:39,798 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:34:39,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1183870386, now seen corresponding path program 1 times [2023-03-31 01:34:39,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:34:39,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77422120] [2023-03-31 01:34:39,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:34:39,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:34:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:40,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:34:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:40,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:34:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:40,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-03-31 01:34:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:40,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-03-31 01:34:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:40,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:34:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:40,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-03-31 01:34:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:40,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-03-31 01:34:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:40,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-03-31 01:34:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:40,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-03-31 01:34:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:40,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-03-31 01:34:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:40,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-03-31 01:34:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:40,199 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 01:34:40,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:34:40,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77422120] [2023-03-31 01:34:40,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77422120] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:34:40,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:34:40,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-03-31 01:34:40,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965338170] [2023-03-31 01:34:40,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:34:40,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-03-31 01:34:40,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:34:40,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-03-31 01:34:40,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-03-31 01:34:40,201 INFO L87 Difference]: Start difference. First operand 7047 states and 10123 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (13), 11 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11)