/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.ufo.BOUNDED-14.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:33:46,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:33:46,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:33:46,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:33:46,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:33:46,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:33:46,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:33:46,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:33:46,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:33:46,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:33:46,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:33:46,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:33:46,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:33:46,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:33:46,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:33:46,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:33:46,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:33:46,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:33:46,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:33:46,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:33:46,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:33:46,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:33:46,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:33:46,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:33:46,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:33:46,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:33:46,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:33:46,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:33:46,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:33:46,983 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:33:46,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:33:46,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:33:46,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:33:46,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:33:46,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:33:46,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:33:46,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:33:46,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:33:46,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:33:46,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:33:46,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:33:46,990 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 01:33:47,014 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:33:47,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:33:47,015 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:33:47,015 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:33:47,016 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:33:47,016 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:33:47,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:33:47,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:33:47,017 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:33:47,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:33:47,018 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:33:47,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:33:47,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:33:47,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:33:47,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:33:47,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:33:47,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:33:47,019 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:33:47,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:33:47,019 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:33:47,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:33:47,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:33:47,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:33:47,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:33:47,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:33:47,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:33:47,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:33:47,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:33:47,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:33:47,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:33:47,020 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:33:47,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:33:47,021 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:33:47,021 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:33:47,021 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:33:47,021 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:33:47,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:33:47,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:33:47,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:33:47,277 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:33:47,278 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:33:47,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c [2023-03-31 01:33:48,451 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:33:48,635 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:33:48,636 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.ufo.BOUNDED-14.pals.c [2023-03-31 01:33:48,651 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a90dd73/228edb5ef88444d49884a3b2bd661617/FLAG325f2f9f0 [2023-03-31 01:33:48,665 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a90dd73/228edb5ef88444d49884a3b2bd661617 [2023-03-31 01:33:48,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:33:48,669 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:33:48,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:33:48,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:33:48,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:33:48,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:33:48" (1/1) ... [2023-03-31 01:33:48,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fb1dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:48, skipping insertion in model container [2023-03-31 01:33:48,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:33:48" (1/1) ... [2023-03-31 01:33:48,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:33:48,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:33:48,934 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.ufo.BOUNDED-14.pals.c[20019,20032] [2023-03-31 01:33:48,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:33:48,949 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:33:49,011 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.ufo.BOUNDED-14.pals.c[20019,20032] [2023-03-31 01:33:49,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:33:49,048 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:33:49,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:49 WrapperNode [2023-03-31 01:33:49,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:33:49,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:33:49,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:33:49,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:33:49,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:49" (1/1) ... [2023-03-31 01:33:49,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:49" (1/1) ... [2023-03-31 01:33:49,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:49" (1/1) ... [2023-03-31 01:33:49,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:49" (1/1) ... [2023-03-31 01:33:49,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:49" (1/1) ... [2023-03-31 01:33:49,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:49" (1/1) ... [2023-03-31 01:33:49,115 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:49" (1/1) ... [2023-03-31 01:33:49,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:49" (1/1) ... [2023-03-31 01:33:49,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:33:49,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:33:49,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:33:49,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:33:49,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:49" (1/1) ... [2023-03-31 01:33:49,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:33:49,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:33:49,161 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 01:33:49,185 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 01:33:49,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:33:49,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:33:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:33:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 01:33:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-03-31 01:33:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-03-31 01:33:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-03-31 01:33:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-03-31 01:33:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-03-31 01:33:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2023-03-31 01:33:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure node7 [2023-03-31 01:33:49,207 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-03-31 01:33:49,207 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-03-31 01:33:49,207 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:33:49,207 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-03-31 01:33:49,207 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:33:49,207 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:33:49,208 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:33:49,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:33:49,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:33:49,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:33:49,208 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:33:49,208 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 01:33:49,208 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-31 01:33:49,208 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-03-31 01:33:49,209 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-03-31 01:33:49,209 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-03-31 01:33:49,209 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-03-31 01:33:49,209 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-03-31 01:33:49,210 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-03-31 01:33:49,210 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2023-03-31 01:33:49,210 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2023-03-31 01:33:49,210 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 01:33:49,210 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 01:33:49,210 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:33:49,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:33:49,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:33:49,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:33:49,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:33:49,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:33:49,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:33:49,323 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:33:49,325 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:33:49,865 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:33:49,872 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:33:49,872 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 01:33:49,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:33:49 BoogieIcfgContainer [2023-03-31 01:33:49,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:33:49,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:33:49,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:33:49,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:33:49,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:33:48" (1/3) ... [2023-03-31 01:33:49,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:33:49, skipping insertion in model container [2023-03-31 01:33:49,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:33:49" (2/3) ... [2023-03-31 01:33:49,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:33:49, skipping insertion in model container [2023-03-31 01:33:49,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:33:49" (3/3) ... [2023-03-31 01:33:49,895 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals.c [2023-03-31 01:33:49,929 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:33:49,930 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:33:49,976 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:33:49,981 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;@75695aa8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:33:49,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:33:49,992 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 01:33:50,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-03-31 01:33:50,002 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:33:50,003 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 01:33:50,003 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:33:50,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:33:50,008 INFO L85 PathProgramCache]: Analyzing trace with hash 13623360, now seen corresponding path program 1 times [2023-03-31 01:33:50,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:33:50,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461141444] [2023-03-31 01:33:50,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:33:50,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:33:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:50,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:33:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:50,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:33:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:50,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 01:33:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:50,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-03-31 01:33:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:50,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-03-31 01:33:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:50,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 01:33:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:51,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-03-31 01:33:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:51,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-03-31 01:33:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:51,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-03-31 01:33:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:51,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-03-31 01:33:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:51,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-03-31 01:33:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:51,105 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 01:33:51,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:33:51,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461141444] [2023-03-31 01:33:51,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461141444] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:33:51,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:33:51,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-03-31 01:33:51,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139427213] [2023-03-31 01:33:51,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:33:51,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-03-31 01:33:51,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:33:51,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-03-31 01:33:51,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:33:51,160 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 01:33:53,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:33:53,613 INFO L93 Difference]: Finished difference Result 267 states and 403 transitions. [2023-03-31 01:33:53,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 01:33:53,616 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 01:33:53,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:33:53,623 INFO L225 Difference]: With dead ends: 267 [2023-03-31 01:33:53,624 INFO L226 Difference]: Without dead ends: 165 [2023-03-31 01:33:53,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2023-03-31 01:33:53,630 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 1092 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.1s IncrementalHoareTripleChecker+Time [2023-03-31 01:33:53,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 226 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-03-31 01:33:53,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-03-31 01:33:53,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 152. [2023-03-31 01:33:53,691 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 01:33:53,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 185 transitions. [2023-03-31 01:33:53,694 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 185 transitions. Word has length 67 [2023-03-31 01:33:53,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:33:53,694 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 185 transitions. [2023-03-31 01:33:53,694 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 01:33:53,695 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 185 transitions. [2023-03-31 01:33:53,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-03-31 01:33:53,698 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:33:53,698 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 01:33:53,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:33:53,699 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:33:53,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:33:53,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1997843926, now seen corresponding path program 1 times [2023-03-31 01:33:53,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:33:53,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735900701] [2023-03-31 01:33:53,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:33:53,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:33:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:54,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:33:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:54,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:33:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:54,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-03-31 01:33:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:54,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-03-31 01:33:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:54,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:33:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:54,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:33:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:54,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 01:33:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:54,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-03-31 01:33:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:54,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-03-31 01:33:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:54,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-03-31 01:33:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:54,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:33:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:33:54,923 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 01:33:54,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:33:54,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735900701] [2023-03-31 01:33:54,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735900701] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:33:54,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:33:54,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-03-31 01:33:54,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723849852] [2023-03-31 01:33:54,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:33:54,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-03-31 01:33:54,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:33:54,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-03-31 01:33:54,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2023-03-31 01:33:54,927 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 01:34:19,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:34:19,671 INFO L93 Difference]: Finished difference Result 1975 states and 2826 transitions. [2023-03-31 01:34:19,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2023-03-31 01:34:19,672 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 01:34:19,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:34:19,687 INFO L225 Difference]: With dead ends: 1975 [2023-03-31 01:34:19,687 INFO L226 Difference]: Without dead ends: 1891 [2023-03-31 01:34:19,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21894 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=7424, Invalid=48982, Unknown=0, NotChecked=0, Total=56406 [2023-03-31 01:34:19,707 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 4301 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 10120 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s 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, 6.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:34:19,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4318 Valid, 682 Invalid, 10553 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [433 Valid, 10120 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-03-31 01:34:19,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2023-03-31 01:34:19,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 596. [2023-03-31 01:34:19,855 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 01:34:19,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 817 transitions. [2023-03-31 01:34:19,858 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 817 transitions. Word has length 116 [2023-03-31 01:34:19,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:34:19,859 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 817 transitions. [2023-03-31 01:34:19,859 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 01:34:19,859 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 817 transitions. [2023-03-31 01:34:19,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-03-31 01:34:19,862 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:34:19,862 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 01:34:19,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:34:19,863 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:34:19,863 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:34:19,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1986891130, now seen corresponding path program 1 times [2023-03-31 01:34:19,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:34:19,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069432789] [2023-03-31 01:34:19,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:34:19,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:34:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:20,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:34:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:20,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:34:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:20,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-03-31 01:34:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:20,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-03-31 01:34:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:20,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:34:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:20,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:34:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:20,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 01:34:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:20,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-03-31 01:34:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:20,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-03-31 01:34:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:20,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-03-31 01:34:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:20,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:34:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:20,327 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 01:34:20,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:34:20,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069432789] [2023-03-31 01:34:20,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069432789] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:34:20,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:34:20,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-03-31 01:34:20,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541802505] [2023-03-31 01:34:20,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:34:20,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 01:34:20,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:34:20,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 01:34:20,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-03-31 01:34:20,330 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 01:34:22,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:34:22,923 INFO L93 Difference]: Finished difference Result 1871 states and 2636 transitions. [2023-03-31 01:34:22,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-03-31 01:34:22,924 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 01:34:22,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:34:22,931 INFO L225 Difference]: With dead ends: 1871 [2023-03-31 01:34:22,931 INFO L226 Difference]: Without dead ends: 1343 [2023-03-31 01:34:22,934 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 01:34:22,935 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, 0.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:34:22,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1835 Valid, 130 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-03-31 01:34:22,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2023-03-31 01:34:23,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1339. [2023-03-31 01:34:23,161 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 01:34:23,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1861 transitions. [2023-03-31 01:34:23,167 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1861 transitions. Word has length 118 [2023-03-31 01:34:23,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:34:23,172 INFO L495 AbstractCegarLoop]: Abstraction has 1339 states and 1861 transitions. [2023-03-31 01:34:23,177 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 01:34:23,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1861 transitions. [2023-03-31 01:34:23,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-03-31 01:34:23,182 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:34:23,183 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 01:34:23,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:34:23,183 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:34:23,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:34:23,183 INFO L85 PathProgramCache]: Analyzing trace with hash 699188674, now seen corresponding path program 1 times [2023-03-31 01:34:23,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:34:23,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082762928] [2023-03-31 01:34:23,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:34:23,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:34:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:23,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:34:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:23,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:34:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:23,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-03-31 01:34:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:24,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-03-31 01:34:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:24,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:34:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:24,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:34:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:24,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-03-31 01:34:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:24,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-03-31 01:34:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:24,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-03-31 01:34:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:24,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-03-31 01:34:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:24,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:34:24,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:34:24,310 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 01:34:24,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:34:24,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082762928] [2023-03-31 01:34:24,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082762928] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:34:24,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:34:24,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-03-31 01:34:24,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63734279] [2023-03-31 01:34:24,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:34:24,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-03-31 01:34:24,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:34:24,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-03-31 01:34:24,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2023-03-31 01:34:24,312 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)