/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe037.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 04:35:45,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 04:35:45,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 04:35:46,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 04:35:46,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 04:35:46,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 04:35:46,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 04:35:46,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 04:35:46,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 04:35:46,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 04:35:46,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 04:35:46,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 04:35:46,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 04:35:46,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 04:35:46,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 04:35:46,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 04:35:46,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 04:35:46,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 04:35:46,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 04:35:46,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 04:35:46,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 04:35:46,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 04:35:46,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 04:35:46,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 04:35:46,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 04:35:46,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 04:35:46,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 04:35:46,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 04:35:46,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 04:35:46,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 04:35:46,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 04:35:46,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 04:35:46,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 04:35:46,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 04:35:46,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 04:35:46,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 04:35:46,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 04:35:46,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 04:35:46,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 04:35:46,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 04:35:46,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 04:35:46,058 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 04:35:46,087 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 04:35:46,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 04:35:46,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 04:35:46,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 04:35:46,089 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 04:35:46,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 04:35:46,089 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 04:35:46,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 04:35:46,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 04:35:46,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 04:35:46,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 04:35:46,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 04:35:46,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 04:35:46,090 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 04:35:46,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 04:35:46,090 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 04:35:46,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 04:35:46,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 04:35:46,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 04:35:46,091 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 04:35:46,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 04:35:46,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:35:46,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 04:35:46,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 04:35:46,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 04:35:46,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 04:35:46,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 04:35:46,095 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 04:35:46,095 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 04:35:46,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 04:35:46,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 04:35:46,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 04:35:46,411 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 04:35:46,412 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 04:35:46,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037.i [2022-12-06 04:35:47,461 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 04:35:47,681 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 04:35:47,682 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037.i [2022-12-06 04:35:47,692 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fdbd668c/03ef94c98d0f40d8b61faba3c02fb347/FLAG5cd1c4a71 [2022-12-06 04:35:47,713 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fdbd668c/03ef94c98d0f40d8b61faba3c02fb347 [2022-12-06 04:35:47,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 04:35:47,716 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 04:35:47,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 04:35:47,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 04:35:47,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 04:35:47,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:35:47" (1/1) ... [2022-12-06 04:35:47,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b3b1fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:47, skipping insertion in model container [2022-12-06 04:35:47,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:35:47" (1/1) ... [2022-12-06 04:35:47,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 04:35:47,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 04:35:47,917 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/safe037.i[941,954] [2022-12-06 04:35:48,040 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,040 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,058 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,059 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:35:48,072 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 04:35:48,082 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/safe037.i[941,954] [2022-12-06 04:35:48,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,114 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,114 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,114 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,114 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,114 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,116 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,119 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,119 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,122 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,123 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,123 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,123 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,124 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:35:48,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:35:48,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:35:48,165 INFO L208 MainTranslator]: Completed translation [2022-12-06 04:35:48,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:48 WrapperNode [2022-12-06 04:35:48,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 04:35:48,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 04:35:48,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 04:35:48,167 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 04:35:48,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:48" (1/1) ... [2022-12-06 04:35:48,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:48" (1/1) ... [2022-12-06 04:35:48,217 INFO L138 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-12-06 04:35:48,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 04:35:48,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 04:35:48,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 04:35:48,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 04:35:48,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:48" (1/1) ... [2022-12-06 04:35:48,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:48" (1/1) ... [2022-12-06 04:35:48,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:48" (1/1) ... [2022-12-06 04:35:48,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:48" (1/1) ... [2022-12-06 04:35:48,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:48" (1/1) ... [2022-12-06 04:35:48,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:48" (1/1) ... [2022-12-06 04:35:48,247 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:48" (1/1) ... [2022-12-06 04:35:48,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:48" (1/1) ... [2022-12-06 04:35:48,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 04:35:48,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 04:35:48,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 04:35:48,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 04:35:48,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:48" (1/1) ... [2022-12-06 04:35:48,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:35:48,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 04:35:48,288 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) [2022-12-06 04:35:48,323 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 [2022-12-06 04:35:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 04:35:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 04:35:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 04:35:48,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 04:35:48,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 04:35:48,338 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 04:35:48,338 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 04:35:48,338 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 04:35:48,338 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 04:35:48,338 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-06 04:35:48,338 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-06 04:35:48,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 04:35:48,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 04:35:48,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 04:35:48,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 04:35:48,340 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 04:35:48,454 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 04:35:48,455 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 04:35:48,570 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 04:35:48,574 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 04:35:48,574 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 04:35:48,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:35:48 BoogieIcfgContainer [2022-12-06 04:35:48,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 04:35:48,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 04:35:48,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 04:35:48,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 04:35:48,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:35:47" (1/3) ... [2022-12-06 04:35:48,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dc2b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:35:48, skipping insertion in model container [2022-12-06 04:35:48,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:35:48" (2/3) ... [2022-12-06 04:35:48,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dc2b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:35:48, skipping insertion in model container [2022-12-06 04:35:48,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:35:48" (3/3) ... [2022-12-06 04:35:48,582 INFO L112 eAbstractionObserver]: Analyzing ICFG safe037.i [2022-12-06 04:35:48,594 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 04:35:48,594 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 04:35:48,595 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 04:35:48,648 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 04:35:48,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 187 flow [2022-12-06 04:35:48,724 INFO L130 PetriNetUnfolder]: 2/83 cut-off events. [2022-12-06 04:35:48,724 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:35:48,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-06 04:35:48,731 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 86 transitions, 187 flow [2022-12-06 04:35:48,734 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 71 transitions, 151 flow [2022-12-06 04:35:48,735 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:35:48,753 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 71 transitions, 151 flow [2022-12-06 04:35:48,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 71 transitions, 151 flow [2022-12-06 04:35:48,785 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2022-12-06 04:35:48,785 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:35:48,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-06 04:35:48,787 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 71 transitions, 151 flow [2022-12-06 04:35:48,788 INFO L188 LiptonReduction]: Number of co-enabled transitions 1044 [2022-12-06 04:35:51,027 INFO L203 LiptonReduction]: Total number of compositions: 54 [2022-12-06 04:35:51,039 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 04:35:51,043 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=REPEATED_LIPTON_PN, 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;@6f26c06c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 04:35:51,043 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 04:35:51,047 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2022-12-06 04:35:51,047 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:35:51,047 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:35:51,047 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:35:51,048 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)] === [2022-12-06 04:35:51,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:35:51,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1517846905, now seen corresponding path program 1 times [2022-12-06 04:35:51,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:35:51,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784972095] [2022-12-06 04:35:51,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:35:51,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:35:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:35:51,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:35:51,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:35:51,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784972095] [2022-12-06 04:35:51,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784972095] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:35:51,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:35:51,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:35:51,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414113464] [2022-12-06 04:35:51,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:35:51,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:35:51,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:35:51,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:35:51,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:35:51,445 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 18 [2022-12-06 04:35:51,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2022-12-06 04:35:51,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:35:51,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 18 [2022-12-06 04:35:51,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:35:51,566 INFO L130 PetriNetUnfolder]: 151/277 cut-off events. [2022-12-06 04:35:51,566 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-06 04:35:51,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 277 events. 151/277 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1056 event pairs, 29 based on Foata normal form. 27/297 useless extension candidates. Maximal degree in co-relation 565. Up to 114 conditions per place. [2022-12-06 04:35:51,569 INFO L137 encePairwiseOnDemand]: 11/18 looper letters, 25 selfloop transitions, 5 changer transitions 1/34 dead transitions. [2022-12-06 04:35:51,569 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 34 transitions, 145 flow [2022-12-06 04:35:51,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:35:51,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:35:51,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2022-12-06 04:35:51,582 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6527777777777778 [2022-12-06 04:35:51,583 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 4 states and 47 transitions. [2022-12-06 04:35:51,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 34 transitions, 145 flow [2022-12-06 04:35:51,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 34 transitions, 140 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-06 04:35:51,588 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 74 flow [2022-12-06 04:35:51,589 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2022-12-06 04:35:51,592 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2022-12-06 04:35:51,592 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:35:51,593 INFO L89 Accepts]: Start accepts. Operand has 29 places, 20 transitions, 74 flow [2022-12-06 04:35:51,595 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:35:51,595 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:35:51,595 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 20 transitions, 74 flow [2022-12-06 04:35:51,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 20 transitions, 74 flow [2022-12-06 04:35:51,605 INFO L130 PetriNetUnfolder]: 14/43 cut-off events. [2022-12-06 04:35:51,605 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-06 04:35:51,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 43 events. 14/43 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 100 event pairs, 6 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 89. Up to 29 conditions per place. [2022-12-06 04:35:51,606 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 20 transitions, 74 flow [2022-12-06 04:35:51,606 INFO L188 LiptonReduction]: Number of co-enabled transitions 146 [2022-12-06 04:35:51,622 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:35:51,624 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 32 [2022-12-06 04:35:51,624 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 74 flow [2022-12-06 04:35:51,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2022-12-06 04:35:51,625 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:35:51,625 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:35:51,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 04:35:51,628 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)] === [2022-12-06 04:35:51,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:35:51,628 INFO L85 PathProgramCache]: Analyzing trace with hash -704677990, now seen corresponding path program 1 times [2022-12-06 04:35:51,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:35:51,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607343920] [2022-12-06 04:35:51,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:35:51,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:35:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:35:51,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:35:51,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:35:51,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607343920] [2022-12-06 04:35:51,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607343920] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:35:51,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:35:51,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 04:35:51,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818926336] [2022-12-06 04:35:51,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:35:51,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 04:35:51,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:35:51,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 04:35:51,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 04:35:51,750 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 17 [2022-12-06 04:35:51,750 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 74 flow. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 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) [2022-12-06 04:35:51,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:35:51,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 17 [2022-12-06 04:35:51,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:35:51,828 INFO L130 PetriNetUnfolder]: 91/185 cut-off events. [2022-12-06 04:35:51,828 INFO L131 PetriNetUnfolder]: For 95/95 co-relation queries the response was YES. [2022-12-06 04:35:51,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 529 conditions, 185 events. 91/185 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 611 event pairs, 15 based on Foata normal form. 19/201 useless extension candidates. Maximal degree in co-relation 517. Up to 72 conditions per place. [2022-12-06 04:35:51,839 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 30 selfloop transitions, 8 changer transitions 1/42 dead transitions. [2022-12-06 04:35:51,839 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 42 transitions, 217 flow [2022-12-06 04:35:51,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 04:35:51,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 04:35:51,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 56 transitions. [2022-12-06 04:35:51,852 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6588235294117647 [2022-12-06 04:35:51,852 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 74 flow. Second operand 5 states and 56 transitions. [2022-12-06 04:35:51,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 42 transitions, 217 flow [2022-12-06 04:35:51,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 42 transitions, 207 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-06 04:35:51,855 INFO L231 Difference]: Finished difference. Result has 33 places, 23 transitions, 114 flow [2022-12-06 04:35:51,855 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=114, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2022-12-06 04:35:51,856 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 6 predicate places. [2022-12-06 04:35:51,856 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:35:51,856 INFO L89 Accepts]: Start accepts. Operand has 33 places, 23 transitions, 114 flow [2022-12-06 04:35:51,857 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:35:51,857 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:35:51,857 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 23 transitions, 114 flow [2022-12-06 04:35:51,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 23 transitions, 114 flow [2022-12-06 04:35:51,862 INFO L130 PetriNetUnfolder]: 8/34 cut-off events. [2022-12-06 04:35:51,863 INFO L131 PetriNetUnfolder]: For 28/33 co-relation queries the response was YES. [2022-12-06 04:35:51,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 34 events. 8/34 cut-off events. For 28/33 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 1 based on Foata normal form. 2/35 useless extension candidates. Maximal degree in co-relation 93. Up to 20 conditions per place. [2022-12-06 04:35:51,864 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 23 transitions, 114 flow [2022-12-06 04:35:51,864 INFO L188 LiptonReduction]: Number of co-enabled transitions 146 [2022-12-06 04:35:51,870 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:35:51,871 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 15 [2022-12-06 04:35:51,871 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 114 flow [2022-12-06 04:35:51,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 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) [2022-12-06 04:35:51,872 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:35:51,872 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:35:51,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 04:35:51,872 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)] === [2022-12-06 04:35:51,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:35:51,873 INFO L85 PathProgramCache]: Analyzing trace with hash -751844602, now seen corresponding path program 1 times [2022-12-06 04:35:51,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:35:51,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609197160] [2022-12-06 04:35:51,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:35:51,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:35:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:35:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:35:52,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:35:52,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609197160] [2022-12-06 04:35:52,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609197160] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:35:52,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:35:52,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 04:35:52,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100055999] [2022-12-06 04:35:52,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:35:52,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 04:35:52,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:35:52,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 04:35:52,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-06 04:35:52,012 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 17 [2022-12-06 04:35:52,012 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 114 flow. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2022-12-06 04:35:52,012 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:35:52,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 17 [2022-12-06 04:35:52,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:35:52,098 INFO L130 PetriNetUnfolder]: 61/131 cut-off events. [2022-12-06 04:35:52,099 INFO L131 PetriNetUnfolder]: For 174/174 co-relation queries the response was YES. [2022-12-06 04:35:52,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 131 events. 61/131 cut-off events. For 174/174 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 395 event pairs, 15 based on Foata normal form. 7/135 useless extension candidates. Maximal degree in co-relation 416. Up to 48 conditions per place. [2022-12-06 04:35:52,100 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 21 selfloop transitions, 11 changer transitions 1/36 dead transitions. [2022-12-06 04:35:52,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 36 transitions, 216 flow [2022-12-06 04:35:52,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 04:35:52,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 04:35:52,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 53 transitions. [2022-12-06 04:35:52,103 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5196078431372549 [2022-12-06 04:35:52,103 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 114 flow. Second operand 6 states and 53 transitions. [2022-12-06 04:35:52,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 36 transitions, 216 flow [2022-12-06 04:35:52,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 191 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-12-06 04:35:52,120 INFO L231 Difference]: Finished difference. Result has 36 places, 23 transitions, 128 flow [2022-12-06 04:35:52,120 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=128, PETRI_PLACES=36, PETRI_TRANSITIONS=23} [2022-12-06 04:35:52,121 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 9 predicate places. [2022-12-06 04:35:52,121 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:35:52,121 INFO L89 Accepts]: Start accepts. Operand has 36 places, 23 transitions, 128 flow [2022-12-06 04:35:52,122 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:35:52,122 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:35:52,122 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 23 transitions, 128 flow [2022-12-06 04:35:52,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 23 transitions, 128 flow [2022-12-06 04:35:52,125 INFO L130 PetriNetUnfolder]: 5/26 cut-off events. [2022-12-06 04:35:52,126 INFO L131 PetriNetUnfolder]: For 34/36 co-relation queries the response was YES. [2022-12-06 04:35:52,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 26 events. 5/26 cut-off events. For 34/36 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 29 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 73. Up to 11 conditions per place. [2022-12-06 04:35:52,126 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 23 transitions, 128 flow [2022-12-06 04:35:52,126 INFO L188 LiptonReduction]: Number of co-enabled transitions 116 [2022-12-06 04:35:52,254 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [235] L767-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork1_#res.offset_11| 0) (= |v_P2Thread1of1ForFork1_#res.base_11| 0) (= (+ v_~__unbuffered_cnt~0_52 1) v_~__unbuffered_cnt~0_51)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_52} OutVars{P2Thread1of1ForFork1_#res.base=|v_P2Thread1of1ForFork1_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_51, P2Thread1of1ForFork1_#res.offset=|v_P2Thread1of1ForFork1_#res.offset_11|} AuxVars[] AssignedVars[P2Thread1of1ForFork1_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork1_#res.offset] and [263] L791-3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_66 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_41|) (= (mod v_~main$tmp_guard0~0_102 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_59|) (= v_~main$tmp_guard0~0_102 (ite (= (ite (= v_~__unbuffered_cnt~0_151 3) 1 0) 0) 0 1)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_41| |v_ULTIMATE.start___VERIFIER_assert_~expression#1_47|) (= |v_ULTIMATE.start___VERIFIER_assert_~expression#1_47| 0) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_65| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_59|) (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_65| 0)) (= (ite (= 0 (ite (not (and (= v_~__unbuffered_p2_EAX~0_70 0) (= v_~__unbuffered_p1_EAX~0_66 0) (= v_~__unbuffered_p0_EAX~0_66 0))) 1 0)) 0 1) v_~main$tmp_guard1~0_66)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_66, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_66, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_70, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_151} OutVars{ULTIMATE.start___VERIFIER_assert_~expression#1=|v_ULTIMATE.start___VERIFIER_assert_~expression#1_47|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_66, ULTIMATE.start___VERIFIER_assert_#in~expression#1=|v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_41|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_66, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_65|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_59|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_66, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_70, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_151, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_45|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_102, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_59|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression#1, ULTIMATE.start___VERIFIER_assert_#in~expression#1, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_main_#t~nondet8#1, ~main$tmp_guard1~0, ULTIMATE.start_main_#t~pre7#1, ~main$tmp_guard0~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1] [2022-12-06 04:35:52,345 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [253] L750-->P1EXIT: Formula: (and (= |v_P1Thread1of1ForFork0_#res.offset_9| 0) (= v_~__unbuffered_cnt~0_71 (+ v_~__unbuffered_cnt~0_72 1)) (= |v_P1Thread1of1ForFork0_#res.base_9| 0)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_72} OutVars{~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_71, P1Thread1of1ForFork0_#res.offset=|v_P1Thread1of1ForFork0_#res.offset_9|, P1Thread1of1ForFork0_#res.base=|v_P1Thread1of1ForFork0_#res.base_9|} AuxVars[] AssignedVars[~__unbuffered_cnt~0, P1Thread1of1ForFork0_#res.offset, P1Thread1of1ForFork0_#res.base] and [263] L791-3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_66 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_41|) (= (mod v_~main$tmp_guard0~0_102 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_59|) (= v_~main$tmp_guard0~0_102 (ite (= (ite (= v_~__unbuffered_cnt~0_151 3) 1 0) 0) 0 1)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_41| |v_ULTIMATE.start___VERIFIER_assert_~expression#1_47|) (= |v_ULTIMATE.start___VERIFIER_assert_~expression#1_47| 0) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_65| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_59|) (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_65| 0)) (= (ite (= 0 (ite (not (and (= v_~__unbuffered_p2_EAX~0_70 0) (= v_~__unbuffered_p1_EAX~0_66 0) (= v_~__unbuffered_p0_EAX~0_66 0))) 1 0)) 0 1) v_~main$tmp_guard1~0_66)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_66, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_66, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_70, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_151} OutVars{ULTIMATE.start___VERIFIER_assert_~expression#1=|v_ULTIMATE.start___VERIFIER_assert_~expression#1_47|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_66, ULTIMATE.start___VERIFIER_assert_#in~expression#1=|v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_41|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_66, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_65|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_59|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_66, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_70, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_151, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_45|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_102, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_59|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression#1, ULTIMATE.start___VERIFIER_assert_#in~expression#1, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_main_#t~nondet8#1, ~main$tmp_guard1~0, ULTIMATE.start_main_#t~pre7#1, ~main$tmp_guard0~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1] [2022-12-06 04:35:52,450 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [244] L733-->P0EXIT: Formula: (and (= |v_P0Thread1of1ForFork2_#res.base_11| 0) (= v_~__unbuffered_cnt~0_61 (+ v_~__unbuffered_cnt~0_62 1)) (= |v_P0Thread1of1ForFork2_#res.offset_11| 0)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62} OutVars{P0Thread1of1ForFork2_#res.offset=|v_P0Thread1of1ForFork2_#res.offset_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_61, P0Thread1of1ForFork2_#res.base=|v_P0Thread1of1ForFork2_#res.base_11|} AuxVars[] AssignedVars[P0Thread1of1ForFork2_#res.offset, ~__unbuffered_cnt~0, P0Thread1of1ForFork2_#res.base] and [263] L791-3-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= (mod v_~main$tmp_guard1~0_66 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_41|) (= (mod v_~main$tmp_guard0~0_102 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_59|) (= v_~main$tmp_guard0~0_102 (ite (= (ite (= v_~__unbuffered_cnt~0_151 3) 1 0) 0) 0 1)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_41| |v_ULTIMATE.start___VERIFIER_assert_~expression#1_47|) (= |v_ULTIMATE.start___VERIFIER_assert_~expression#1_47| 0) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_65| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_59|) (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_65| 0)) (= (ite (= 0 (ite (not (and (= v_~__unbuffered_p2_EAX~0_70 0) (= v_~__unbuffered_p1_EAX~0_66 0) (= v_~__unbuffered_p0_EAX~0_66 0))) 1 0)) 0 1) v_~main$tmp_guard1~0_66)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_66, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_66, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_70, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_151} OutVars{ULTIMATE.start___VERIFIER_assert_~expression#1=|v_ULTIMATE.start___VERIFIER_assert_~expression#1_47|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_66, ULTIMATE.start___VERIFIER_assert_#in~expression#1=|v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_41|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_66, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_65|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_59|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_66, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_70, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_151, ULTIMATE.start_main_#t~pre7#1=|v_ULTIMATE.start_main_#t~pre7#1_45|, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_102, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_59|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression#1, ULTIMATE.start___VERIFIER_assert_#in~expression#1, ULTIMATE.start_assume_abort_if_not_~cond#1, ULTIMATE.start_main_#t~nondet8#1, ~main$tmp_guard1~0, ULTIMATE.start_main_#t~pre7#1, ~main$tmp_guard0~0, ULTIMATE.start_assume_abort_if_not_#in~cond#1] [2022-12-06 04:35:52,561 INFO L203 LiptonReduction]: Total number of compositions: 3 [2022-12-06 04:35:52,562 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 441 [2022-12-06 04:35:52,562 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 20 transitions, 116 flow [2022-12-06 04:35:52,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2022-12-06 04:35:52,562 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:35:52,562 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:35:52,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 04:35:52,562 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)] === [2022-12-06 04:35:52,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:35:52,563 INFO L85 PathProgramCache]: Analyzing trace with hash 675361781, now seen corresponding path program 1 times [2022-12-06 04:35:52,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:35:52,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806100408] [2022-12-06 04:35:52,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:35:52,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:35:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:35:52,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:35:52,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:35:52,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806100408] [2022-12-06 04:35:52,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806100408] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:35:52,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:35:52,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 04:35:52,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138392373] [2022-12-06 04:35:52,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:35:52,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 04:35:52,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:35:52,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 04:35:52,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 04:35:52,646 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 18 [2022-12-06 04:35:52,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 20 transitions, 116 flow. Second operand has 5 states, 4 states have (on average 3.75) 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) [2022-12-06 04:35:52,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:35:52,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 18 [2022-12-06 04:35:52,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:35:52,713 INFO L130 PetriNetUnfolder]: 154/294 cut-off events. [2022-12-06 04:35:52,713 INFO L131 PetriNetUnfolder]: For 373/373 co-relation queries the response was YES. [2022-12-06 04:35:52,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 294 events. 154/294 cut-off events. For 373/373 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1165 event pairs, 20 based on Foata normal form. 3/297 useless extension candidates. Maximal degree in co-relation 897. Up to 161 conditions per place. [2022-12-06 04:35:52,715 INFO L137 encePairwiseOnDemand]: 13/18 looper letters, 26 selfloop transitions, 1 changer transitions 12/39 dead transitions. [2022-12-06 04:35:52,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 284 flow [2022-12-06 04:35:52,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:35:52,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:35:52,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2022-12-06 04:35:52,716 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5138888888888888 [2022-12-06 04:35:52,716 INFO L175 Difference]: Start difference. First operand has 34 places, 20 transitions, 116 flow. Second operand 4 states and 37 transitions. [2022-12-06 04:35:52,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 39 transitions, 284 flow [2022-12-06 04:35:52,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 39 transitions, 202 flow, removed 9 selfloop flow, removed 8 redundant places. [2022-12-06 04:35:52,718 INFO L231 Difference]: Finished difference. Result has 31 places, 20 transitions, 77 flow [2022-12-06 04:35:52,718 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=77, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2022-12-06 04:35:52,719 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 4 predicate places. [2022-12-06 04:35:52,719 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:35:52,719 INFO L89 Accepts]: Start accepts. Operand has 31 places, 20 transitions, 77 flow [2022-12-06 04:35:52,719 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:35:52,719 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:35:52,720 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 20 transitions, 77 flow [2022-12-06 04:35:52,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 20 transitions, 77 flow [2022-12-06 04:35:52,722 INFO L130 PetriNetUnfolder]: 4/27 cut-off events. [2022-12-06 04:35:52,723 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-12-06 04:35:52,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 27 events. 4/27 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 48. Up to 6 conditions per place. [2022-12-06 04:35:52,723 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 20 transitions, 77 flow [2022-12-06 04:35:52,723 INFO L188 LiptonReduction]: Number of co-enabled transitions 94 [2022-12-06 04:35:52,741 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 04:35:52,742 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 23 [2022-12-06 04:35:52,742 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 19 transitions, 75 flow [2022-12-06 04:35:52,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) 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) [2022-12-06 04:35:52,742 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:35:52,742 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:35:52,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 04:35:52,742 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)] === [2022-12-06 04:35:52,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:35:52,743 INFO L85 PathProgramCache]: Analyzing trace with hash -819543014, now seen corresponding path program 1 times [2022-12-06 04:35:52,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:35:52,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260668344] [2022-12-06 04:35:52,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:35:52,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:35:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:35:52,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:35:52,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:35:52,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260668344] [2022-12-06 04:35:52,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260668344] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:35:52,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:35:52,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 04:35:52,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76000617] [2022-12-06 04:35:52,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:35:52,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:35:52,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:35:52,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:35:52,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:35:52,818 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 17 [2022-12-06 04:35:52,818 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 19 transitions, 75 flow. Second operand has 4 states, 3 states have (on average 4.666666666666667) 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) [2022-12-06 04:35:52,818 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:35:52,818 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 17 [2022-12-06 04:35:52,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:35:52,898 INFO L130 PetriNetUnfolder]: 89/193 cut-off events. [2022-12-06 04:35:52,898 INFO L131 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2022-12-06 04:35:52,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 193 events. 89/193 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 703 event pairs, 37 based on Foata normal form. 3/196 useless extension candidates. Maximal degree in co-relation 518. Up to 83 conditions per place. [2022-12-06 04:35:52,899 INFO L137 encePairwiseOnDemand]: 11/17 looper letters, 26 selfloop transitions, 3 changer transitions 3/32 dead transitions. [2022-12-06 04:35:52,899 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 32 transitions, 186 flow [2022-12-06 04:35:52,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:35:52,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:35:52,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2022-12-06 04:35:52,900 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4411764705882353 [2022-12-06 04:35:52,900 INFO L175 Difference]: Start difference. First operand has 29 places, 19 transitions, 75 flow. Second operand 4 states and 30 transitions. [2022-12-06 04:35:52,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 32 transitions, 186 flow [2022-12-06 04:35:52,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 32 transitions, 178 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-12-06 04:35:52,902 INFO L231 Difference]: Finished difference. Result has 32 places, 21 transitions, 95 flow [2022-12-06 04:35:52,902 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=95, PETRI_PLACES=32, PETRI_TRANSITIONS=21} [2022-12-06 04:35:52,902 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2022-12-06 04:35:52,902 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:35:52,903 INFO L89 Accepts]: Start accepts. Operand has 32 places, 21 transitions, 95 flow [2022-12-06 04:35:52,903 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:35:52,903 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:35:52,903 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 21 transitions, 95 flow [2022-12-06 04:35:52,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 21 transitions, 95 flow [2022-12-06 04:35:52,907 INFO L130 PetriNetUnfolder]: 8/48 cut-off events. [2022-12-06 04:35:52,907 INFO L131 PetriNetUnfolder]: For 28/29 co-relation queries the response was YES. [2022-12-06 04:35:52,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 48 events. 8/48 cut-off events. For 28/29 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 159 event pairs, 0 based on Foata normal form. 1/43 useless extension candidates. Maximal degree in co-relation 106. Up to 14 conditions per place. [2022-12-06 04:35:52,908 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 21 transitions, 95 flow [2022-12-06 04:35:52,908 INFO L188 LiptonReduction]: Number of co-enabled transitions 86 [2022-12-06 04:35:52,923 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 04:35:52,924 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 22 [2022-12-06 04:35:52,924 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 21 transitions, 98 flow [2022-12-06 04:35:52,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) 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) [2022-12-06 04:35:52,924 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:35:52,924 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:35:52,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 04:35:52,924 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)] === [2022-12-06 04:35:52,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:35:52,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1072836805, now seen corresponding path program 1 times [2022-12-06 04:35:52,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:35:52,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108341019] [2022-12-06 04:35:52,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:35:52,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:35:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:35:53,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 04:35:53,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:35:53,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108341019] [2022-12-06 04:35:53,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108341019] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:35:53,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:35:53,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 04:35:53,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626080926] [2022-12-06 04:35:53,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:35:53,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 04:35:53,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:35:53,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 04:35:53,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 04:35:53,007 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 18 [2022-12-06 04:35:53,007 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 21 transitions, 98 flow. Second operand has 4 states, 3 states have (on average 4.333333333333333) 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) [2022-12-06 04:35:53,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:35:53,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 18 [2022-12-06 04:35:53,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:35:53,059 INFO L130 PetriNetUnfolder]: 93/206 cut-off events. [2022-12-06 04:35:53,059 INFO L131 PetriNetUnfolder]: For 250/250 co-relation queries the response was YES. [2022-12-06 04:35:53,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 206 events. 93/206 cut-off events. For 250/250 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 916 event pairs, 16 based on Foata normal form. 3/209 useless extension candidates. Maximal degree in co-relation 654. Up to 138 conditions per place. [2022-12-06 04:35:53,060 INFO L137 encePairwiseOnDemand]: 10/18 looper letters, 0 selfloop transitions, 0 changer transitions 38/38 dead transitions. [2022-12-06 04:35:53,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 38 transitions, 245 flow [2022-12-06 04:35:53,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 04:35:53,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 04:35:53,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2022-12-06 04:35:53,061 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2022-12-06 04:35:53,061 INFO L175 Difference]: Start difference. First operand has 32 places, 21 transitions, 98 flow. Second operand 4 states and 33 transitions. [2022-12-06 04:35:53,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 38 transitions, 245 flow [2022-12-06 04:35:53,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 38 transitions, 232 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-06 04:35:53,062 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2022-12-06 04:35:53,062 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2022-12-06 04:35:53,063 INFO L294 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2022-12-06 04:35:53,063 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:35:53,063 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 0 transitions, 0 flow [2022-12-06 04:35:53,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-06 04:35:53,064 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 04:35:53,064 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:35:53,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-06 04:35:53,064 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-06 04:35:53,064 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 04:35:53,064 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:35:53,065 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-06 04:35:53,065 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-06 04:35:53,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) 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) [2022-12-06 04:35:53,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 04:35:53,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 04:35:53,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 04:35:53,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 04:35:53,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 04:35:53,068 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-06 04:35:53,070 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 04:35:53,070 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 04:35:53,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:35:53 BasicIcfg [2022-12-06 04:35:53,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 04:35:53,073 INFO L158 Benchmark]: Toolchain (without parser) took 5356.75ms. Allocated memory was 195.0MB in the beginning and 247.5MB in the end (delta: 52.4MB). Free memory was 169.6MB in the beginning and 171.5MB in the end (delta: -2.0MB). Peak memory consumption was 52.0MB. Max. memory is 8.0GB. [2022-12-06 04:35:53,073 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 195.0MB. Free memory is still 171.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:35:53,073 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.14ms. Allocated memory is still 195.0MB. Free memory was 169.6MB in the beginning and 144.9MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-12-06 04:35:53,073 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.41ms. Allocated memory is still 195.0MB. Free memory was 144.9MB in the beginning and 142.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:35:53,074 INFO L158 Benchmark]: Boogie Preprocessor took 31.57ms. Allocated memory is still 195.0MB. Free memory was 142.8MB in the beginning and 141.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 04:35:53,074 INFO L158 Benchmark]: RCFGBuilder took 326.07ms. Allocated memory is still 195.0MB. Free memory was 141.8MB in the beginning and 127.6MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 04:35:53,074 INFO L158 Benchmark]: TraceAbstraction took 4494.63ms. Allocated memory was 195.0MB in the beginning and 247.5MB in the end (delta: 52.4MB). Free memory was 127.1MB in the beginning and 171.5MB in the end (delta: -44.4MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-12-06 04:35:53,075 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 195.0MB. Free memory is still 171.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 449.14ms. Allocated memory is still 195.0MB. Free memory was 169.6MB in the beginning and 144.9MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.41ms. Allocated memory is still 195.0MB. Free memory was 144.9MB in the beginning and 142.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.57ms. Allocated memory is still 195.0MB. Free memory was 142.8MB in the beginning and 141.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 326.07ms. Allocated memory is still 195.0MB. Free memory was 141.8MB in the beginning and 127.6MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4494.63ms. Allocated memory was 195.0MB in the beginning and 247.5MB in the end (delta: 52.4MB). Free memory was 127.1MB in the beginning and 171.5MB in the end (delta: -44.4MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 80 PlacesBefore, 27 PlacesAfterwards, 71 TransitionsBefore, 18 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 21 TrivialYvCompositions, 32 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 722, independent: 684, independent conditional: 684, independent unconditional: 0, dependent: 38, dependent conditional: 38, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 722, independent: 684, independent conditional: 0, independent unconditional: 684, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 722, independent: 684, independent conditional: 0, independent unconditional: 684, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 722, independent: 684, independent conditional: 0, independent unconditional: 684, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 633, independent: 602, independent conditional: 0, independent unconditional: 602, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 633, independent: 596, independent conditional: 0, independent unconditional: 596, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 37, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 102, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 722, independent: 82, independent conditional: 0, independent unconditional: 82, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 633, unknown conditional: 0, unknown unconditional: 633] , Statistics on independence cache: Total cache size (in pairs): 952, Positive cache size: 921, Positive conditional cache size: 0, Positive unconditional cache size: 921, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 29 PlacesBefore, 29 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 60, independent: 46, independent conditional: 46, independent unconditional: 0, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 60, independent: 46, independent conditional: 11, independent unconditional: 35, dependent: 14, dependent conditional: 2, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 60, independent: 46, independent conditional: 6, independent unconditional: 40, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 60, independent: 46, independent conditional: 6, independent unconditional: 40, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 46, independent: 37, independent conditional: 5, independent unconditional: 32, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 46, independent: 37, independent conditional: 0, independent unconditional: 37, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 60, independent: 9, independent conditional: 1, independent unconditional: 8, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 46, unknown conditional: 5, unknown unconditional: 41] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 37, Positive conditional cache size: 5, Positive unconditional cache size: 32, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 7, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 33 PlacesBefore, 33 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 80, independent: 63, independent conditional: 63, independent unconditional: 0, dependent: 17, dependent conditional: 17, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 80, independent: 63, independent conditional: 31, independent unconditional: 32, dependent: 17, dependent conditional: 2, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 82, independent: 63, independent conditional: 25, independent unconditional: 38, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 82, independent: 63, independent conditional: 25, independent unconditional: 38, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, independent: 13, independent conditional: 7, independent unconditional: 6, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 82, independent: 50, independent conditional: 18, independent unconditional: 32, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 15, unknown conditional: 7, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 50, Positive conditional cache size: 12, Positive unconditional cache size: 38, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 10, Maximal queried relation: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4s, 36 PlacesBefore, 34 PlacesAfterwards, 23 TransitionsBefore, 20 TransitionsAfterwards, 116 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 154, independent: 126, independent conditional: 126, independent unconditional: 0, dependent: 28, dependent conditional: 28, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 154, independent: 126, independent conditional: 54, independent unconditional: 72, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 154, independent: 126, independent conditional: 54, independent unconditional: 72, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 154, independent: 126, independent conditional: 54, independent unconditional: 72, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, independent: 16, independent conditional: 12, independent unconditional: 4, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 154, independent: 110, independent conditional: 42, independent unconditional: 68, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 17, unknown conditional: 12, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 70, Positive conditional cache size: 24, Positive unconditional cache size: 46, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 30 PlacesBefore, 29 PlacesAfterwards, 20 TransitionsBefore, 19 TransitionsAfterwards, 94 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 75, independent: 57, independent conditional: 57, independent unconditional: 0, dependent: 18, dependent conditional: 18, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 75, independent: 57, independent conditional: 18, independent unconditional: 39, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 75, independent: 57, independent conditional: 18, independent unconditional: 39, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 75, independent: 57, independent conditional: 18, independent unconditional: 39, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 75, independent: 51, independent conditional: 15, independent unconditional: 36, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 8, unknown conditional: 3, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 86, Positive conditional cache size: 30, Positive unconditional cache size: 56, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 32 PlacesBefore, 32 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 86 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, independent: 21, independent conditional: 21, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 23, independent: 21, independent conditional: 7, independent unconditional: 14, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 23, independent: 21, independent conditional: 7, independent unconditional: 14, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 23, independent: 21, independent conditional: 7, independent unconditional: 14, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 2, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 23, independent: 19, independent conditional: 5, independent unconditional: 14, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 105, Positive cache size: 91, Positive conditional cache size: 33, Positive unconditional cache size: 58, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 2, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 105, Positive cache size: 91, Positive conditional cache size: 33, Positive unconditional cache size: 58, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, 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, 109 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: 4.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 173 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 173 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 324 IncrementalHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 13 mSDtfsCounter, 324 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=3, InterpolantAutomatonStates: 27, 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, 0.6s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 221 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2022-12-06 04:35:53,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...