/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:26:19,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:26:19,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:26:19,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:26:19,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:26:19,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:26:19,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:26:19,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:26:19,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:26:19,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:26:19,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:26:19,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:26:19,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:26:19,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:26:19,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:26:19,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:26:19,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:26:19,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:26:19,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:26:19,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:26:19,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:26:19,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:26:19,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:26:19,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:26:19,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:26:19,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:26:19,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:26:19,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:26:19,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:26:19,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:26:19,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:26:19,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:26:19,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:26:19,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:26:19,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:26:19,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:26:19,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:26:19,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:26:19,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:26:19,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:26:19,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:26:19,217 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-05 20:26:19,244 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:26:19,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:26:19,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:26:19,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:26:19,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:26:19,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:26:19,247 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:26:19,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:26:19,247 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:26:19,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:26:19,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:26:19,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:26:19,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:26:19,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:26:19,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:26:19,248 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:26:19,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:26:19,249 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:26:19,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:26:19,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:26:19,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:26:19,249 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:26:19,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:26:19,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:26:19,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:26:19,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:26:19,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:26:19,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:26:19,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:26:19,250 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:26:19,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:26:19,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:26:19,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:26:19,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:26:19,509 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:26:19,509 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:26:19,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 20:26:20,527 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:26:20,755 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:26:20,755 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 20:26:20,766 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb3266322/53ec81407f0f4c18b21365fc6c261049/FLAG6cbf9ac8f [2022-12-05 20:26:20,776 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb3266322/53ec81407f0f4c18b21365fc6c261049 [2022-12-05 20:26:20,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:26:20,778 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:26:20,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:26:20,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:26:20,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:26:20,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:26:20" (1/1) ... [2022-12-05 20:26:20,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db5bb2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:20, skipping insertion in model container [2022-12-05 20:26:20,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:26:20" (1/1) ... [2022-12-05 20:26:20,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:26:20,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:26:20,936 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-05 20:26:21,077 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,077 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,078 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,078 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,078 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,079 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,079 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,079 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,080 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,080 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,080 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,080 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,080 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,080 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,092 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:26:21,101 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:26:21,112 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-05 20:26:21,141 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,147 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:26:21,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:26:21,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:26:21,186 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:26:21,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:21 WrapperNode [2022-12-05 20:26:21,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:26:21,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:26:21,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:26:21,189 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:26:21,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:21" (1/1) ... [2022-12-05 20:26:21,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:21" (1/1) ... [2022-12-05 20:26:21,235 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-12-05 20:26:21,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:26:21,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:26:21,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:26:21,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:26:21,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:21" (1/1) ... [2022-12-05 20:26:21,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:21" (1/1) ... [2022-12-05 20:26:21,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:21" (1/1) ... [2022-12-05 20:26:21,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:21" (1/1) ... [2022-12-05 20:26:21,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:21" (1/1) ... [2022-12-05 20:26:21,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:21" (1/1) ... [2022-12-05 20:26:21,262 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:21" (1/1) ... [2022-12-05 20:26:21,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:21" (1/1) ... [2022-12-05 20:26:21,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:26:21,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:26:21,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:26:21,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:26:21,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:21" (1/1) ... [2022-12-05 20:26:21,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:26:21,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:26:21,290 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) [2022-12-05 20:26:21,325 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 [2022-12-05 20:26:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:26:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 20:26:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:26:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:26:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:26:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-05 20:26:21,354 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-05 20:26:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-05 20:26:21,355 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-05 20:26:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-05 20:26:21,355 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-05 20:26:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:26:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 20:26:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:26:21,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:26:21,356 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:26:21,441 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:26:21,442 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:26:21,594 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:26:21,599 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:26:21,599 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:26:21,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:26:21 BoogieIcfgContainer [2022-12-05 20:26:21,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:26:21,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:26:21,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:26:21,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:26:21,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:26:20" (1/3) ... [2022-12-05 20:26:21,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17786436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:26:21, skipping insertion in model container [2022-12-05 20:26:21,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:26:21" (2/3) ... [2022-12-05 20:26:21,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17786436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:26:21, skipping insertion in model container [2022-12-05 20:26:21,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:26:21" (3/3) ... [2022-12-05 20:26:21,606 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 20:26:21,619 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:26:21,620 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 20:26:21,620 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:26:21,674 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 20:26:21,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 83 transitions, 181 flow [2022-12-05 20:26:21,730 INFO L130 PetriNetUnfolder]: 2/80 cut-off events. [2022-12-05 20:26:21,730 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:26:21,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-12-05 20:26:21,733 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 83 transitions, 181 flow [2022-12-05 20:26:21,736 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 68 transitions, 145 flow [2022-12-05 20:26:21,737 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:26:21,750 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 68 transitions, 145 flow [2022-12-05 20:26:21,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 68 transitions, 145 flow [2022-12-05 20:26:21,767 INFO L130 PetriNetUnfolder]: 1/68 cut-off events. [2022-12-05 20:26:21,767 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:26:21,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 1/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 35 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2022-12-05 20:26:21,769 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 68 transitions, 145 flow [2022-12-05 20:26:21,769 INFO L188 LiptonReduction]: Number of co-enabled transitions 988 [2022-12-05 20:26:23,737 INFO L203 LiptonReduction]: Total number of compositions: 52 [2022-12-05 20:26:23,758 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:26:23,762 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=false, 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;@7f90143e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:26:23,762 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 20:26:23,765 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2022-12-05 20:26:23,765 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:26:23,765 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:26:23,765 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:26:23,766 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:26:23,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:26:23,769 INFO L85 PathProgramCache]: Analyzing trace with hash -2141580155, now seen corresponding path program 1 times [2022-12-05 20:26:23,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:26:23,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573954989] [2022-12-05 20:26:23,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:26:23,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:26:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:26:24,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:26:24,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:26:24,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573954989] [2022-12-05 20:26:24,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573954989] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:26:24,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:26:24,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 20:26:24,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062135969] [2022-12-05 20:26:24,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:26:24,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:26:24,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:26:24,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:26:24,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:26:24,066 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 17 [2022-12-05 20:26:24,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:24,067 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:26:24,067 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 17 [2022-12-05 20:26:24,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:26:24,145 INFO L130 PetriNetUnfolder]: 283/491 cut-off events. [2022-12-05 20:26:24,145 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-05 20:26:24,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1013 conditions, 491 events. 283/491 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2222 event pairs, 113 based on Foata normal form. 19/510 useless extension candidates. Maximal degree in co-relation 1002. Up to 335 conditions per place. [2022-12-05 20:26:24,149 INFO L137 encePairwiseOnDemand]: 10/17 looper letters, 21 selfloop transitions, 5 changer transitions 0/27 dead transitions. [2022-12-05 20:26:24,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 121 flow [2022-12-05 20:26:24,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:26:24,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:26:24,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2022-12-05 20:26:24,157 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6274509803921569 [2022-12-05 20:26:24,158 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 43 flow. Second operand 3 states and 32 transitions. [2022-12-05 20:26:24,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 121 flow [2022-12-05 20:26:24,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 27 transitions, 116 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:26:24,161 INFO L231 Difference]: Finished difference. Result has 26 places, 19 transitions, 67 flow [2022-12-05 20:26:24,162 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=26, PETRI_TRANSITIONS=19} [2022-12-05 20:26:24,165 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2022-12-05 20:26:24,165 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 19 transitions, 67 flow [2022-12-05 20:26:24,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:24,165 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:26:24,165 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:26:24,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:26:24,165 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:26:24,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:26:24,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1964476603, now seen corresponding path program 1 times [2022-12-05 20:26:24,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:26:24,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857092938] [2022-12-05 20:26:24,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:26:24,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:26:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:26:24,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:26:24,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:26:24,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857092938] [2022-12-05 20:26:24,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857092938] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:26:24,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:26:24,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:26:24,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932720242] [2022-12-05 20:26:24,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:26:24,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:26:24,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:26:24,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:26:24,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:26:24,280 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 17 [2022-12-05 20:26:24,280 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:24,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:26:24,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 17 [2022-12-05 20:26:24,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:26:24,368 INFO L130 PetriNetUnfolder]: 263/455 cut-off events. [2022-12-05 20:26:24,368 INFO L131 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2022-12-05 20:26:24,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1168 conditions, 455 events. 263/455 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1958 event pairs, 37 based on Foata normal form. 5/459 useless extension candidates. Maximal degree in co-relation 1157. Up to 261 conditions per place. [2022-12-05 20:26:24,373 INFO L137 encePairwiseOnDemand]: 12/17 looper letters, 27 selfloop transitions, 7 changer transitions 0/35 dead transitions. [2022-12-05 20:26:24,373 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 35 transitions, 186 flow [2022-12-05 20:26:24,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:26:24,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:26:24,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2022-12-05 20:26:24,376 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5294117647058824 [2022-12-05 20:26:24,376 INFO L175 Difference]: Start difference. First operand has 26 places, 19 transitions, 67 flow. Second operand 4 states and 36 transitions. [2022-12-05 20:26:24,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 35 transitions, 186 flow [2022-12-05 20:26:24,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 35 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 20:26:24,379 INFO L231 Difference]: Finished difference. Result has 30 places, 23 transitions, 106 flow [2022-12-05 20:26:24,380 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=30, PETRI_TRANSITIONS=23} [2022-12-05 20:26:24,380 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2022-12-05 20:26:24,380 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 106 flow [2022-12-05 20:26:24,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:24,381 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:26:24,381 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:26:24,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:26:24,381 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:26:24,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:26:24,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1964475921, now seen corresponding path program 1 times [2022-12-05 20:26:24,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:26:24,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049290718] [2022-12-05 20:26:24,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:26:24,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:26:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:26:24,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:26:24,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:26:24,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049290718] [2022-12-05 20:26:24,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049290718] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:26:24,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:26:24,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 20:26:24,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730116148] [2022-12-05 20:26:24,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:26:24,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:26:24,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:26:24,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:26:24,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:26:24,511 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 17 [2022-12-05 20:26:24,511 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:24,511 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:26:24,511 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 17 [2022-12-05 20:26:24,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:26:24,584 INFO L130 PetriNetUnfolder]: 208/385 cut-off events. [2022-12-05 20:26:24,584 INFO L131 PetriNetUnfolder]: For 213/218 co-relation queries the response was YES. [2022-12-05 20:26:24,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1072 conditions, 385 events. 208/385 cut-off events. For 213/218 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1720 event pairs, 100 based on Foata normal form. 12/387 useless extension candidates. Maximal degree in co-relation 1058. Up to 291 conditions per place. [2022-12-05 20:26:24,587 INFO L137 encePairwiseOnDemand]: 14/17 looper letters, 26 selfloop transitions, 4 changer transitions 0/33 dead transitions. [2022-12-05 20:26:24,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 33 transitions, 202 flow [2022-12-05 20:26:24,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:26:24,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:26:24,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2022-12-05 20:26:24,589 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5882352941176471 [2022-12-05 20:26:24,590 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 106 flow. Second operand 3 states and 30 transitions. [2022-12-05 20:26:24,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 33 transitions, 202 flow [2022-12-05 20:26:24,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 33 transitions, 202 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 20:26:24,592 INFO L231 Difference]: Finished difference. Result has 33 places, 23 transitions, 120 flow [2022-12-05 20:26:24,592 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2022-12-05 20:26:24,593 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2022-12-05 20:26:24,594 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 120 flow [2022-12-05 20:26:24,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:24,594 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:26:24,594 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:26:24,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:26:24,594 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:26:24,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:26:24,595 INFO L85 PathProgramCache]: Analyzing trace with hash -769233105, now seen corresponding path program 1 times [2022-12-05 20:26:24,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:26:24,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660700661] [2022-12-05 20:26:24,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:26:24,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:26:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:26:24,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:26:24,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:26:24,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660700661] [2022-12-05 20:26:24,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660700661] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:26:24,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:26:24,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:26:24,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659963286] [2022-12-05 20:26:24,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:26:24,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:26:24,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:26:24,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:26:24,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:26:24,733 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 17 [2022-12-05 20:26:24,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 120 flow. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:24,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:26:24,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 17 [2022-12-05 20:26:24,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:26:24,810 INFO L130 PetriNetUnfolder]: 297/534 cut-off events. [2022-12-05 20:26:24,811 INFO L131 PetriNetUnfolder]: For 472/472 co-relation queries the response was YES. [2022-12-05 20:26:24,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1541 conditions, 534 events. 297/534 cut-off events. For 472/472 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2554 event pairs, 73 based on Foata normal form. 16/549 useless extension candidates. Maximal degree in co-relation 1524. Up to 218 conditions per place. [2022-12-05 20:26:24,813 INFO L137 encePairwiseOnDemand]: 12/17 looper letters, 27 selfloop transitions, 7 changer transitions 6/41 dead transitions. [2022-12-05 20:26:24,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 254 flow [2022-12-05 20:26:24,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:26:24,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:26:24,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 42 transitions. [2022-12-05 20:26:24,814 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.49411764705882355 [2022-12-05 20:26:24,814 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 120 flow. Second operand 5 states and 42 transitions. [2022-12-05 20:26:24,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 254 flow [2022-12-05 20:26:24,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:26:24,815 INFO L231 Difference]: Finished difference. Result has 37 places, 23 transitions, 139 flow [2022-12-05 20:26:24,816 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=139, PETRI_PLACES=37, PETRI_TRANSITIONS=23} [2022-12-05 20:26:24,816 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2022-12-05 20:26:24,816 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 23 transitions, 139 flow [2022-12-05 20:26:24,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:24,816 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:26:24,816 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:26:24,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:26:24,817 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:26:24,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:26:24,817 INFO L85 PathProgramCache]: Analyzing trace with hash -769212645, now seen corresponding path program 2 times [2022-12-05 20:26:24,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:26:24,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649461574] [2022-12-05 20:26:24,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:26:24,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:26:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:26:24,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:26:24,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:26:24,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649461574] [2022-12-05 20:26:24,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649461574] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:26:24,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:26:24,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:26:24,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830003792] [2022-12-05 20:26:24,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:26:24,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:26:24,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:26:24,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:26:24,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:26:24,874 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 17 [2022-12-05 20:26:24,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 23 transitions, 139 flow. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:24,875 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:26:24,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 17 [2022-12-05 20:26:24,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:26:24,920 INFO L130 PetriNetUnfolder]: 173/316 cut-off events. [2022-12-05 20:26:24,920 INFO L131 PetriNetUnfolder]: For 489/489 co-relation queries the response was YES. [2022-12-05 20:26:24,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1021 conditions, 316 events. 173/316 cut-off events. For 489/489 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1309 event pairs, 40 based on Foata normal form. 4/318 useless extension candidates. Maximal degree in co-relation 1002. Up to 190 conditions per place. [2022-12-05 20:26:24,922 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 26 selfloop transitions, 8 changer transitions 0/35 dead transitions. [2022-12-05 20:26:24,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 35 transitions, 242 flow [2022-12-05 20:26:24,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:26:24,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:26:24,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2022-12-05 20:26:24,923 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5147058823529411 [2022-12-05 20:26:24,923 INFO L175 Difference]: Start difference. First operand has 37 places, 23 transitions, 139 flow. Second operand 4 states and 35 transitions. [2022-12-05 20:26:24,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 35 transitions, 242 flow [2022-12-05 20:26:24,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 35 transitions, 221 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-12-05 20:26:24,925 INFO L231 Difference]: Finished difference. Result has 37 places, 23 transitions, 141 flow [2022-12-05 20:26:24,925 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=141, PETRI_PLACES=37, PETRI_TRANSITIONS=23} [2022-12-05 20:26:24,926 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2022-12-05 20:26:24,926 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 23 transitions, 141 flow [2022-12-05 20:26:24,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:24,926 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:26:24,926 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:26:24,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 20:26:24,926 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:26:24,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:26:24,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1923802118, now seen corresponding path program 1 times [2022-12-05 20:26:24,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:26:24,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088171073] [2022-12-05 20:26:24,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:26:24,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:26:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:26:24,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:26:24,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:26:24,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088171073] [2022-12-05 20:26:24,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088171073] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:26:24,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:26:24,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:26:24,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971522959] [2022-12-05 20:26:24,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:26:24,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:26:24,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:26:24,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:26:24,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:26:24,989 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-05 20:26:24,989 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 23 transitions, 141 flow. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:24,989 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:26:24,989 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-05 20:26:24,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:26:25,040 INFO L130 PetriNetUnfolder]: 235/410 cut-off events. [2022-12-05 20:26:25,040 INFO L131 PetriNetUnfolder]: For 590/590 co-relation queries the response was YES. [2022-12-05 20:26:25,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1268 conditions, 410 events. 235/410 cut-off events. For 590/590 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1580 event pairs, 63 based on Foata normal form. 24/434 useless extension candidates. Maximal degree in co-relation 1250. Up to 164 conditions per place. [2022-12-05 20:26:25,042 INFO L137 encePairwiseOnDemand]: 12/17 looper letters, 19 selfloop transitions, 4 changer transitions 16/39 dead transitions. [2022-12-05 20:26:25,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 39 transitions, 280 flow [2022-12-05 20:26:25,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:26:25,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:26:25,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2022-12-05 20:26:25,043 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4 [2022-12-05 20:26:25,043 INFO L175 Difference]: Start difference. First operand has 37 places, 23 transitions, 141 flow. Second operand 5 states and 34 transitions. [2022-12-05 20:26:25,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 39 transitions, 280 flow [2022-12-05 20:26:25,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 39 transitions, 258 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:26:25,044 INFO L231 Difference]: Finished difference. Result has 40 places, 16 transitions, 91 flow [2022-12-05 20:26:25,044 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=91, PETRI_PLACES=40, PETRI_TRANSITIONS=16} [2022-12-05 20:26:25,045 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 14 predicate places. [2022-12-05 20:26:25,045 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 16 transitions, 91 flow [2022-12-05 20:26:25,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:25,045 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:26:25,045 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:26:25,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 20:26:25,045 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:26:25,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:26:25,046 INFO L85 PathProgramCache]: Analyzing trace with hash -479043178, now seen corresponding path program 1 times [2022-12-05 20:26:25,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:26:25,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684728280] [2022-12-05 20:26:25,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:26:25,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:26:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:26:25,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:26:25,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:26:25,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684728280] [2022-12-05 20:26:25,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684728280] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:26:25,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:26:25,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:26:25,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286543455] [2022-12-05 20:26:25,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:26:25,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 20:26:25,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:26:25,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 20:26:25,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-05 20:26:25,129 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 17 [2022-12-05 20:26:25,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 16 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:25,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:26:25,129 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 17 [2022-12-05 20:26:25,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:26:25,166 INFO L130 PetriNetUnfolder]: 42/104 cut-off events. [2022-12-05 20:26:25,166 INFO L131 PetriNetUnfolder]: For 176/176 co-relation queries the response was YES. [2022-12-05 20:26:25,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 104 events. 42/104 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 328 event pairs, 14 based on Foata normal form. 4/105 useless extension candidates. Maximal degree in co-relation 330. Up to 58 conditions per place. [2022-12-05 20:26:25,167 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 15 selfloop transitions, 3 changer transitions 13/33 dead transitions. [2022-12-05 20:26:25,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 33 transitions, 226 flow [2022-12-05 20:26:25,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:26:25,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:26:25,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2022-12-05 20:26:25,168 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5058823529411764 [2022-12-05 20:26:25,168 INFO L175 Difference]: Start difference. First operand has 40 places, 16 transitions, 91 flow. Second operand 5 states and 43 transitions. [2022-12-05 20:26:25,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 33 transitions, 226 flow [2022-12-05 20:26:25,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 33 transitions, 151 flow, removed 12 selfloop flow, removed 12 redundant places. [2022-12-05 20:26:25,169 INFO L231 Difference]: Finished difference. Result has 35 places, 18 transitions, 81 flow [2022-12-05 20:26:25,169 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=81, PETRI_PLACES=35, PETRI_TRANSITIONS=18} [2022-12-05 20:26:25,169 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 9 predicate places. [2022-12-05 20:26:25,170 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 18 transitions, 81 flow [2022-12-05 20:26:25,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:25,170 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:26:25,170 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:26:25,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 20:26:25,170 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:26:25,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:26:25,170 INFO L85 PathProgramCache]: Analyzing trace with hash 91684777, now seen corresponding path program 1 times [2022-12-05 20:26:25,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:26:25,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233489898] [2022-12-05 20:26:25,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:26:25,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:26:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:26:25,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:26:25,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:26:25,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233489898] [2022-12-05 20:26:25,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233489898] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:26:25,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:26:25,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:26:25,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916877727] [2022-12-05 20:26:25,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:26:25,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:26:25,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:26:25,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:26:25,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:26:25,235 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 17 [2022-12-05 20:26:25,236 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 18 transitions, 81 flow. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:25,236 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:26:25,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 17 [2022-12-05 20:26:25,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:26:25,271 INFO L130 PetriNetUnfolder]: 20/61 cut-off events. [2022-12-05 20:26:25,272 INFO L131 PetriNetUnfolder]: For 65/78 co-relation queries the response was YES. [2022-12-05 20:26:25,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 61 events. 20/61 cut-off events. For 65/78 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 157 event pairs, 1 based on Foata normal form. 5/66 useless extension candidates. Maximal degree in co-relation 207. Up to 38 conditions per place. [2022-12-05 20:26:25,272 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 14 selfloop transitions, 5 changer transitions 13/34 dead transitions. [2022-12-05 20:26:25,272 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 34 transitions, 219 flow [2022-12-05 20:26:25,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:26:25,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:26:25,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 46 transitions. [2022-12-05 20:26:25,273 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.45098039215686275 [2022-12-05 20:26:25,273 INFO L175 Difference]: Start difference. First operand has 35 places, 18 transitions, 81 flow. Second operand 6 states and 46 transitions. [2022-12-05 20:26:25,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 34 transitions, 219 flow [2022-12-05 20:26:25,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 34 transitions, 214 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-05 20:26:25,274 INFO L231 Difference]: Finished difference. Result has 39 places, 18 transitions, 100 flow [2022-12-05 20:26:25,274 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=39, PETRI_TRANSITIONS=18} [2022-12-05 20:26:25,274 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 13 predicate places. [2022-12-05 20:26:25,275 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 18 transitions, 100 flow [2022-12-05 20:26:25,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:25,275 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:26:25,275 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:26:25,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 20:26:25,275 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 20:26:25,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:26:25,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1495013287, now seen corresponding path program 1 times [2022-12-05 20:26:25,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:26:25,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088961194] [2022-12-05 20:26:25,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:26:25,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:26:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:26:25,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:26:25,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:26:25,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088961194] [2022-12-05 20:26:25,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088961194] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:26:25,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:26:25,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:26:25,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738870931] [2022-12-05 20:26:25,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:26:25,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:26:25,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:26:25,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:26:25,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:26:25,341 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 17 [2022-12-05 20:26:25,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 18 transitions, 100 flow. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:25,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:26:25,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 17 [2022-12-05 20:26:25,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:26:25,369 INFO L130 PetriNetUnfolder]: 7/30 cut-off events. [2022-12-05 20:26:25,370 INFO L131 PetriNetUnfolder]: For 56/64 co-relation queries the response was YES. [2022-12-05 20:26:25,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 30 events. 7/30 cut-off events. For 56/64 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 41 event pairs, 0 based on Foata normal form. 5/35 useless extension candidates. Maximal degree in co-relation 115. Up to 15 conditions per place. [2022-12-05 20:26:25,370 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2022-12-05 20:26:25,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 23 transitions, 157 flow [2022-12-05 20:26:25,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 20:26:25,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 20:26:25,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 36 transitions. [2022-12-05 20:26:25,371 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3025210084033613 [2022-12-05 20:26:25,371 INFO L175 Difference]: Start difference. First operand has 39 places, 18 transitions, 100 flow. Second operand 7 states and 36 transitions. [2022-12-05 20:26:25,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 23 transitions, 157 flow [2022-12-05 20:26:25,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 23 transitions, 127 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-12-05 20:26:25,371 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2022-12-05 20:26:25,371 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2022-12-05 20:26:25,372 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 10 predicate places. [2022-12-05 20:26:25,372 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2022-12-05 20:26:25,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:26:25,374 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-05 20:26:25,374 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-05 20:26:25,374 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-05 20:26:25,374 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-05 20:26:25,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 20:26:25,375 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:26:25,377 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:26:25,377 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:26:25,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:26:25 BasicIcfg [2022-12-05 20:26:25,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:26:25,379 INFO L158 Benchmark]: Toolchain (without parser) took 4600.49ms. Allocated memory was 200.3MB in the beginning and 278.9MB in the end (delta: 78.6MB). Free memory was 175.1MB in the beginning and 160.8MB in the end (delta: 14.2MB). Peak memory consumption was 93.3MB. Max. memory is 8.0GB. [2022-12-05 20:26:25,379 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 200.3MB. Free memory was 176.2MB in the beginning and 176.2MB in the end (delta: 63.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:26:25,379 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.06ms. Allocated memory is still 200.3MB. Free memory was 174.9MB in the beginning and 151.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-05 20:26:25,379 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.45ms. Allocated memory is still 200.3MB. Free memory was 151.8MB in the beginning and 149.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:26:25,380 INFO L158 Benchmark]: Boogie Preprocessor took 28.13ms. Allocated memory is still 200.3MB. Free memory was 149.8MB in the beginning and 148.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:26:25,380 INFO L158 Benchmark]: RCFGBuilder took 335.98ms. Allocated memory is still 200.3MB. Free memory was 148.2MB in the beginning and 135.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-05 20:26:25,380 INFO L158 Benchmark]: TraceAbstraction took 3776.51ms. Allocated memory was 200.3MB in the beginning and 278.9MB in the end (delta: 78.6MB). Free memory was 134.0MB in the beginning and 160.8MB in the end (delta: -26.8MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. [2022-12-05 20:26:25,381 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 200.3MB. Free memory was 176.2MB in the beginning and 176.2MB in the end (delta: 63.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 408.06ms. Allocated memory is still 200.3MB. Free memory was 174.9MB in the beginning and 151.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.45ms. Allocated memory is still 200.3MB. Free memory was 151.8MB in the beginning and 149.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.13ms. Allocated memory is still 200.3MB. Free memory was 149.8MB in the beginning and 148.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 335.98ms. Allocated memory is still 200.3MB. Free memory was 148.2MB in the beginning and 135.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3776.51ms. Allocated memory was 200.3MB in the beginning and 278.9MB in the end (delta: 78.6MB). Free memory was 134.0MB in the beginning and 160.8MB in the end (delta: -26.8MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 77 PlacesBefore, 26 PlacesAfterwards, 68 TransitionsBefore, 17 TransitionsAfterwards, 988 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 664, independent: 630, independent conditional: 630, independent unconditional: 0, dependent: 34, dependent conditional: 34, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 664, independent: 630, independent conditional: 0, independent unconditional: 630, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 664, independent: 630, independent conditional: 0, independent unconditional: 630, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 664, independent: 630, independent conditional: 0, independent unconditional: 630, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 595, independent: 569, independent conditional: 0, independent unconditional: 569, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 595, independent: 560, independent conditional: 0, independent unconditional: 560, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 79, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 664, independent: 61, independent conditional: 0, independent unconditional: 61, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 595, unknown conditional: 0, unknown unconditional: 595] , Statistics on independence cache: Total cache size (in pairs): 874, Positive cache size: 848, Positive conditional cache size: 0, Positive unconditional cache size: 848, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 105 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 166 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 166 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 339 IncrementalHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 6 mSDtfsCounter, 339 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=5, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 371 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 20:26:25,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...