/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/safe022_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 09:36:48,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 09:36:48,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 09:36:49,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 09:36:49,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 09:36:49,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 09:36:49,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 09:36:49,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 09:36:49,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 09:36:49,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 09:36:49,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 09:36:49,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 09:36:49,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 09:36:49,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 09:36:49,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 09:36:49,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 09:36:49,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 09:36:49,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 09:36:49,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 09:36:49,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 09:36:49,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 09:36:49,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 09:36:49,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 09:36:49,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 09:36:49,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 09:36:49,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 09:36:49,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 09:36:49,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 09:36:49,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 09:36:49,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 09:36:49,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 09:36:49,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 09:36:49,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 09:36:49,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 09:36:49,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 09:36:49,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 09:36:49,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 09:36:49,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 09:36:49,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 09:36:49,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 09:36:49,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 09:36:49,074 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 [2022-12-13 09:36:49,116 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 09:36:49,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 09:36:49,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 09:36:49,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 09:36:49,118 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 09:36:49,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 09:36:49,119 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 09:36:49,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 09:36:49,119 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 09:36:49,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 09:36:49,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 09:36:49,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 09:36:49,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 09:36:49,120 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 09:36:49,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 09:36:49,121 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 09:36:49,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 09:36:49,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 09:36:49,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 09:36:49,121 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 09:36:49,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 09:36:49,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:36:49,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 09:36:49,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 09:36:49,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 09:36:49,122 INFO L138 SettingsManager]: * Use conditional commutativity for large block encoding in concurrent analysis=CONDITIONAL_CONJUNCTIVE [2022-12-13 09:36:49,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 09:36:49,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 09:36:49,122 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 09:36:49,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 09:36:49,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 09:36:49,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 09:36:49,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 09:36:49,464 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 09:36:49,465 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 09:36:49,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.i [2022-12-13 09:36:50,743 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 09:36:51,073 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 09:36:51,074 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.i [2022-12-13 09:36:51,086 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8260ec293/4739ada4b61e457ca1953e7b7e628268/FLAG4c2aad10c [2022-12-13 09:36:51,108 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8260ec293/4739ada4b61e457ca1953e7b7e628268 [2022-12-13 09:36:51,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 09:36:51,111 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 09:36:51,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 09:36:51,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 09:36:51,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 09:36:51,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:36:51" (1/1) ... [2022-12-13 09:36:51,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727d8f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:51, skipping insertion in model container [2022-12-13 09:36:51,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:36:51" (1/1) ... [2022-12-13 09:36:51,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 09:36:51,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 09:36:51,353 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/safe022_tso.i[945,958] [2022-12-13 09:36:51,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:36:51,532 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 09:36:51,543 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/safe022_tso.i[945,958] [2022-12-13 09:36:51,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 09:36:51,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 09:36:51,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:36:51,635 INFO L208 MainTranslator]: Completed translation [2022-12-13 09:36:51,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:51 WrapperNode [2022-12-13 09:36:51,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 09:36:51,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 09:36:51,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 09:36:51,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 09:36:51,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:51" (1/1) ... [2022-12-13 09:36:51,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:51" (1/1) ... [2022-12-13 09:36:51,681 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-13 09:36:51,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 09:36:51,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 09:36:51,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 09:36:51,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 09:36:51,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:51" (1/1) ... [2022-12-13 09:36:51,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:51" (1/1) ... [2022-12-13 09:36:51,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:51" (1/1) ... [2022-12-13 09:36:51,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:51" (1/1) ... [2022-12-13 09:36:51,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:51" (1/1) ... [2022-12-13 09:36:51,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:51" (1/1) ... [2022-12-13 09:36:51,700 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:51" (1/1) ... [2022-12-13 09:36:51,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:51" (1/1) ... [2022-12-13 09:36:51,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 09:36:51,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 09:36:51,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 09:36:51,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 09:36:51,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:51" (1/1) ... [2022-12-13 09:36:51,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:36:51,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 09:36:51,737 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) [2022-12-13 09:36:51,749 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 [2022-12-13 09:36:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 09:36:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 09:36:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 09:36:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 09:36:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 09:36:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 09:36:51,779 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 09:36:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 09:36:51,780 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 09:36:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 09:36:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 09:36:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 09:36:51,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 09:36:51,782 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 09:36:51,971 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 09:36:51,973 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 09:36:52,107 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 09:36:52,113 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 09:36:52,113 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 09:36:52,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:36:52 BoogieIcfgContainer [2022-12-13 09:36:52,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 09:36:52,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 09:36:52,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 09:36:52,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 09:36:52,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:36:51" (1/3) ... [2022-12-13 09:36:52,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74fec6ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:36:52, skipping insertion in model container [2022-12-13 09:36:52,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:36:51" (2/3) ... [2022-12-13 09:36:52,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74fec6ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:36:52, skipping insertion in model container [2022-12-13 09:36:52,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:36:52" (3/3) ... [2022-12-13 09:36:52,124 INFO L112 eAbstractionObserver]: Analyzing ICFG safe022_tso.i [2022-12-13 09:36:52,141 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 09:36:52,142 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 09:36:52,142 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 09:36:52,185 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 09:36:52,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 68 transitions, 146 flow [2022-12-13 09:36:52,254 INFO L130 PetriNetUnfolder]: 2/66 cut-off events. [2022-12-13 09:36:52,254 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:36:52,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2022-12-13 09:36:52,258 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 68 transitions, 146 flow [2022-12-13 09:36:52,262 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 56 transitions, 118 flow [2022-12-13 09:36:52,263 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:36:52,283 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 56 transitions, 118 flow [2022-12-13 09:36:52,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 56 transitions, 118 flow [2022-12-13 09:36:52,304 INFO L130 PetriNetUnfolder]: 1/56 cut-off events. [2022-12-13 09:36:52,305 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:36:52,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 56 events. 1/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2022-12-13 09:36:52,308 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 56 transitions, 118 flow [2022-12-13 09:36:52,309 INFO L226 LiptonReduction]: Number of co-enabled transitions 540 [2022-12-13 09:36:54,129 INFO L241 LiptonReduction]: Total number of compositions: 44 [2022-12-13 09:36:54,144 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 09:36:54,150 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;@7fd46e57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_CONJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:36:54,150 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 09:36:54,154 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2022-12-13 09:36:54,154 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:36:54,154 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:36:54,155 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 09:36:54,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:36:54,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:36:54,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1567709208, now seen corresponding path program 1 times [2022-12-13 09:36:54,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:36:54,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213628939] [2022-12-13 09:36:54,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:36:54,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:36:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:36:54,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:36:54,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:36:54,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213628939] [2022-12-13 09:36:54,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213628939] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:36:54,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:36:54,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 09:36:54,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390325300] [2022-12-13 09:36:54,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:36:54,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:36:54,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:36:54,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:36:54,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:36:54,675 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 19 [2022-12-13 09:36:54,677 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-12-13 09:36:54,677 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:36:54,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 19 [2022-12-13 09:36:54,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:36:54,757 INFO L130 PetriNetUnfolder]: 73/153 cut-off events. [2022-12-13 09:36:54,757 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:36:54,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 153 events. 73/153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 610 event pairs, 21 based on Foata normal form. 4/128 useless extension candidates. Maximal degree in co-relation 295. Up to 113 conditions per place. [2022-12-13 09:36:54,765 INFO L137 encePairwiseOnDemand]: 15/19 looper letters, 15 selfloop transitions, 2 changer transitions 0/22 dead transitions. [2022-12-13 09:36:54,770 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 22 transitions, 84 flow [2022-12-13 09:36:54,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:36:54,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 09:36:54,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2022-12-13 09:36:54,781 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6140350877192983 [2022-12-13 09:36:54,783 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 44 flow. Second operand 3 states and 35 transitions. [2022-12-13 09:36:54,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 22 transitions, 84 flow [2022-12-13 09:36:54,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 22 transitions, 82 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 09:36:54,789 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 48 flow [2022-12-13 09:36:54,791 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2022-12-13 09:36:54,794 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2022-12-13 09:36:54,795 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:36:54,796 INFO L89 Accepts]: Start accepts. Operand has 26 places, 18 transitions, 48 flow [2022-12-13 09:36:54,798 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:36:54,798 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:36:54,798 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 18 transitions, 48 flow [2022-12-13 09:36:54,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 18 transitions, 48 flow [2022-12-13 09:36:54,805 INFO L130 PetriNetUnfolder]: 0/18 cut-off events. [2022-12-13 09:36:54,805 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:36:54,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 18 events. 0/18 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 29 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-13 09:36:54,808 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 18 transitions, 48 flow [2022-12-13 09:36:54,808 INFO L226 LiptonReduction]: Number of co-enabled transitions 140 [2022-12-13 09:36:54,871 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 09:36:54,873 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 77 [2022-12-13 09:36:54,873 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 48 flow [2022-12-13 09:36:54,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-12-13 09:36:54,873 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:36:54,873 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:36:54,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 09:36:54,874 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:36:54,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:36:54,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1354345053, now seen corresponding path program 1 times [2022-12-13 09:36:54,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:36:54,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220746525] [2022-12-13 09:36:54,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:36:54,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:36:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:36:55,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:36:55,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:36:55,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220746525] [2022-12-13 09:36:55,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220746525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:36:55,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:36:55,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 09:36:55,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078768516] [2022-12-13 09:36:55,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:36:55,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 09:36:55,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:36:55,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 09:36:55,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 09:36:55,016 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 18 [2022-12-13 09:36:55,016 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2022-12-13 09:36:55,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:36:55,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 18 [2022-12-13 09:36:55,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:36:55,080 INFO L130 PetriNetUnfolder]: 98/202 cut-off events. [2022-12-13 09:36:55,080 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-12-13 09:36:55,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 202 events. 98/202 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 754 event pairs, 17 based on Foata normal form. 5/174 useless extension candidates. Maximal degree in co-relation 429. Up to 97 conditions per place. [2022-12-13 09:36:55,083 INFO L137 encePairwiseOnDemand]: 13/18 looper letters, 23 selfloop transitions, 6 changer transitions 0/33 dead transitions. [2022-12-13 09:36:55,083 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 33 transitions, 143 flow [2022-12-13 09:36:55,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 09:36:55,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 09:36:55,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2022-12-13 09:36:55,084 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2022-12-13 09:36:55,084 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 48 flow. Second operand 5 states and 51 transitions. [2022-12-13 09:36:55,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 33 transitions, 143 flow [2022-12-13 09:36:55,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 33 transitions, 137 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 09:36:55,086 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 79 flow [2022-12-13 09:36:55,086 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=79, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2022-12-13 09:36:55,087 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 5 predicate places. [2022-12-13 09:36:55,087 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:36:55,087 INFO L89 Accepts]: Start accepts. Operand has 30 places, 22 transitions, 79 flow [2022-12-13 09:36:55,088 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:36:55,088 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:36:55,088 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 22 transitions, 79 flow [2022-12-13 09:36:55,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 22 transitions, 79 flow [2022-12-13 09:36:55,092 INFO L130 PetriNetUnfolder]: 2/30 cut-off events. [2022-12-13 09:36:55,092 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 09:36:55,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 30 events. 2/30 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 84 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 51. Up to 6 conditions per place. [2022-12-13 09:36:55,093 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 22 transitions, 79 flow [2022-12-13 09:36:55,093 INFO L226 LiptonReduction]: Number of co-enabled transitions 150 [2022-12-13 09:36:55,097 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 09:36:55,099 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 12 [2022-12-13 09:36:55,099 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 79 flow [2022-12-13 09:36:55,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2022-12-13 09:36:55,099 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:36:55,099 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:36:55,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 09:36:55,100 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:36:55,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:36:55,100 INFO L85 PathProgramCache]: Analyzing trace with hash 964974999, now seen corresponding path program 1 times [2022-12-13 09:36:55,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:36:55,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41711755] [2022-12-13 09:36:55,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:36:55,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:36:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:36:55,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:36:55,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:36:55,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41711755] [2022-12-13 09:36:55,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41711755] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:36:55,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:36:55,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:36:55,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595138571] [2022-12-13 09:36:55,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:36:55,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 09:36:55,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:36:55,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 09:36:55,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 09:36:55,194 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 18 [2022-12-13 09:36:55,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 79 flow. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-12-13 09:36:55,195 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:36:55,195 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 18 [2022-12-13 09:36:55,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:36:55,270 INFO L130 PetriNetUnfolder]: 103/225 cut-off events. [2022-12-13 09:36:55,270 INFO L131 PetriNetUnfolder]: For 161/161 co-relation queries the response was YES. [2022-12-13 09:36:55,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 553 conditions, 225 events. 103/225 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 949 event pairs, 40 based on Foata normal form. 15/197 useless extension candidates. Maximal degree in co-relation 540. Up to 82 conditions per place. [2022-12-13 09:36:55,272 INFO L137 encePairwiseOnDemand]: 14/18 looper letters, 17 selfloop transitions, 3 changer transitions 9/32 dead transitions. [2022-12-13 09:36:55,273 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 32 transitions, 157 flow [2022-12-13 09:36:55,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:36:55,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 09:36:55,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2022-12-13 09:36:55,274 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.625 [2022-12-13 09:36:55,274 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 79 flow. Second operand 4 states and 45 transitions. [2022-12-13 09:36:55,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 32 transitions, 157 flow [2022-12-13 09:36:55,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 32 transitions, 157 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 09:36:55,276 INFO L231 Difference]: Finished difference. Result has 35 places, 17 transitions, 72 flow [2022-12-13 09:36:55,276 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=35, PETRI_TRANSITIONS=17} [2022-12-13 09:36:55,277 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 10 predicate places. [2022-12-13 09:36:55,277 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:36:55,277 INFO L89 Accepts]: Start accepts. Operand has 35 places, 17 transitions, 72 flow [2022-12-13 09:36:55,278 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:36:55,278 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:36:55,278 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 17 transitions, 72 flow [2022-12-13 09:36:55,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 17 transitions, 72 flow [2022-12-13 09:36:55,281 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2022-12-13 09:36:55,281 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-13 09:36:55,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 17 events. 0/17 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 26 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-13 09:36:55,282 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 17 transitions, 72 flow [2022-12-13 09:36:55,282 INFO L226 LiptonReduction]: Number of co-enabled transitions 96 [2022-12-13 09:36:55,324 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 09:36:55,326 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 49 [2022-12-13 09:36:55,326 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 16 transitions, 70 flow [2022-12-13 09:36:55,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-12-13 09:36:55,326 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:36:55,326 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:36:55,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 09:36:55,326 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:36:55,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:36:55,327 INFO L85 PathProgramCache]: Analyzing trace with hash 964987027, now seen corresponding path program 1 times [2022-12-13 09:36:55,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:36:55,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938674439] [2022-12-13 09:36:55,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:36:55,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:36:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:36:55,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:36:55,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:36:55,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938674439] [2022-12-13 09:36:55,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938674439] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:36:55,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:36:55,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 09:36:55,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356133381] [2022-12-13 09:36:55,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:36:55,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:36:55,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:36:55,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:36:55,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:36:55,449 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 16 [2022-12-13 09:36:55,450 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 16 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2022-12-13 09:36:55,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:36:55,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 16 [2022-12-13 09:36:55,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:36:55,518 INFO L130 PetriNetUnfolder]: 59/127 cut-off events. [2022-12-13 09:36:55,519 INFO L131 PetriNetUnfolder]: For 240/240 co-relation queries the response was YES. [2022-12-13 09:36:55,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 127 events. 59/127 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 476 event pairs, 20 based on Foata normal form. 3/82 useless extension candidates. Maximal degree in co-relation 380. Up to 115 conditions per place. [2022-12-13 09:36:55,520 INFO L137 encePairwiseOnDemand]: 8/16 looper letters, 16 selfloop transitions, 7 changer transitions 0/25 dead transitions. [2022-12-13 09:36:55,520 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 25 transitions, 143 flow [2022-12-13 09:36:55,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:36:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 09:36:55,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2022-12-13 09:36:55,523 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.625 [2022-12-13 09:36:55,523 INFO L175 Difference]: Start difference. First operand has 32 places, 16 transitions, 70 flow. Second operand 3 states and 30 transitions. [2022-12-13 09:36:55,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 25 transitions, 143 flow [2022-12-13 09:36:55,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 25 transitions, 110 flow, removed 5 selfloop flow, removed 9 redundant places. [2022-12-13 09:36:55,526 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 89 flow [2022-12-13 09:36:55,526 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2022-12-13 09:36:55,528 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2022-12-13 09:36:55,528 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:36:55,528 INFO L89 Accepts]: Start accepts. Operand has 26 places, 22 transitions, 89 flow [2022-12-13 09:36:55,529 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:36:55,529 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:36:55,530 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 22 transitions, 89 flow [2022-12-13 09:36:55,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 22 transitions, 89 flow [2022-12-13 09:36:55,536 INFO L130 PetriNetUnfolder]: 27/80 cut-off events. [2022-12-13 09:36:55,537 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:36:55,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 80 events. 27/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 331 event pairs, 9 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 160. Up to 58 conditions per place. [2022-12-13 09:36:55,539 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 22 transitions, 89 flow [2022-12-13 09:36:55,539 INFO L226 LiptonReduction]: Number of co-enabled transitions 56 [2022-12-13 09:36:55,639 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 09:36:55,640 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 112 [2022-12-13 09:36:55,641 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 92 flow [2022-12-13 09:36:55,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2022-12-13 09:36:55,641 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:36:55,641 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:36:55,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 09:36:55,641 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:36:55,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:36:55,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1205925878, now seen corresponding path program 1 times [2022-12-13 09:36:55,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:36:55,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991039473] [2022-12-13 09:36:55,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:36:55,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:36:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:36:55,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:36:55,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:36:55,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991039473] [2022-12-13 09:36:55,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991039473] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:36:55,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:36:55,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:36:55,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548545757] [2022-12-13 09:36:55,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:36:55,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 09:36:55,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:36:55,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 09:36:55,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 09:36:55,741 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 19 [2022-12-13 09:36:55,741 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-12-13 09:36:55,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:36:55,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 19 [2022-12-13 09:36:55,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:36:55,778 INFO L130 PetriNetUnfolder]: 17/73 cut-off events. [2022-12-13 09:36:55,778 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-12-13 09:36:55,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 73 events. 17/73 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 260 event pairs, 2 based on Foata normal form. 9/62 useless extension candidates. Maximal degree in co-relation 222. Up to 40 conditions per place. [2022-12-13 09:36:55,779 INFO L137 encePairwiseOnDemand]: 8/19 looper letters, 10 selfloop transitions, 13 changer transitions 0/25 dead transitions. [2022-12-13 09:36:55,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 25 transitions, 148 flow [2022-12-13 09:36:55,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:36:55,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 09:36:55,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2022-12-13 09:36:55,781 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.42105263157894735 [2022-12-13 09:36:55,781 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 92 flow. Second operand 4 states and 32 transitions. [2022-12-13 09:36:55,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 25 transitions, 148 flow [2022-12-13 09:36:55,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 25 transitions, 136 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 09:36:55,782 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 121 flow [2022-12-13 09:36:55,783 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=121, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2022-12-13 09:36:55,783 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2022-12-13 09:36:55,783 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 09:36:55,784 INFO L89 Accepts]: Start accepts. Operand has 28 places, 22 transitions, 121 flow [2022-12-13 09:36:55,784 INFO L95 Accepts]: Finished accepts. [2022-12-13 09:36:55,784 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:36:55,784 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 22 transitions, 121 flow [2022-12-13 09:36:55,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 22 transitions, 121 flow [2022-12-13 09:36:55,789 INFO L130 PetriNetUnfolder]: 9/56 cut-off events. [2022-12-13 09:36:55,790 INFO L131 PetriNetUnfolder]: For 9/12 co-relation queries the response was YES. [2022-12-13 09:36:55,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 56 events. 9/56 cut-off events. For 9/12 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 200 event pairs, 0 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 144. Up to 34 conditions per place. [2022-12-13 09:36:55,790 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 22 transitions, 121 flow [2022-12-13 09:36:55,790 INFO L226 LiptonReduction]: Number of co-enabled transitions 24 [2022-12-13 09:36:56,128 INFO L241 LiptonReduction]: Total number of compositions: 3 [2022-12-13 09:36:56,129 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 346 [2022-12-13 09:36:56,129 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 120 flow [2022-12-13 09:36:56,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-12-13 09:36:56,129 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 09:36:56,130 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 09:36:56,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 09:36:56,130 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 09:36:56,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:36:56,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1354327115, now seen corresponding path program 1 times [2022-12-13 09:36:56,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:36:56,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786685132] [2022-12-13 09:36:56,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:36:56,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:36:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:36:56,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:36:56,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:36:56,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786685132] [2022-12-13 09:36:56,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786685132] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:36:56,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:36:56,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:36:56,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428391632] [2022-12-13 09:36:56,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:36:56,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 09:36:56,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:36:56,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 09:36:56,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 09:36:56,205 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 19 [2022-12-13 09:36:56,205 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-12-13 09:36:56,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 09:36:56,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 19 [2022-12-13 09:36:56,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 09:36:56,248 INFO L130 PetriNetUnfolder]: 17/46 cut-off events. [2022-12-13 09:36:56,248 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-12-13 09:36:56,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 46 events. 17/46 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 141 event pairs, 0 based on Foata normal form. 9/38 useless extension candidates. Maximal degree in co-relation 184. Up to 38 conditions per place. [2022-12-13 09:36:56,249 INFO L137 encePairwiseOnDemand]: 13/19 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2022-12-13 09:36:56,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 156 flow [2022-12-13 09:36:56,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 09:36:56,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 09:36:56,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2022-12-13 09:36:56,250 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.35526315789473684 [2022-12-13 09:36:56,250 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 120 flow. Second operand 4 states and 27 transitions. [2022-12-13 09:36:56,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 156 flow [2022-12-13 09:36:56,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 111 flow, removed 6 selfloop flow, removed 4 redundant places. [2022-12-13 09:36:56,253 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2022-12-13 09:36:56,253 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=20, 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=23, PETRI_TRANSITIONS=0} [2022-12-13 09:36:56,254 INFO L295 CegarLoopForPetriNet]: 25 programPoint places, -2 predicate places. [2022-12-13 09:36:56,254 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 09:36:56,254 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 0 transitions, 0 flow [2022-12-13 09:36:56,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 09:36:56,255 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 09:36:56,255 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 09:36:56,255 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. [2022-12-13 09:36:56,255 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 09:36:56,255 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 09:36:56,256 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 09:36:56,256 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-13 09:36:56,256 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 09:36:56,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-12-13 09:36:56,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 09:36:56,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 09:36:56,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-13 09:36:56,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 09:36:56,260 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-13 09:36:56,262 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 09:36:56,263 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 09:36:56,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:36:56 BasicIcfg [2022-12-13 09:36:56,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 09:36:56,269 INFO L158 Benchmark]: Toolchain (without parser) took 5154.93ms. Allocated memory was 176.2MB in the beginning and 230.7MB in the end (delta: 54.5MB). Free memory was 150.7MB in the beginning and 105.9MB in the end (delta: 44.8MB). Peak memory consumption was 100.4MB. Max. memory is 8.0GB. [2022-12-13 09:36:56,269 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 152.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 09:36:56,269 INFO L158 Benchmark]: CACSL2BoogieTranslator took 523.09ms. Allocated memory is still 176.2MB. Free memory was 150.2MB in the beginning and 128.1MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-13 09:36:56,271 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.08ms. Allocated memory is still 176.2MB. Free memory was 128.1MB in the beginning and 126.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 09:36:56,271 INFO L158 Benchmark]: Boogie Preprocessor took 21.15ms. Allocated memory is still 176.2MB. Free memory was 126.6MB in the beginning and 125.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 09:36:56,272 INFO L158 Benchmark]: RCFGBuilder took 411.41ms. Allocated memory is still 176.2MB. Free memory was 125.0MB in the beginning and 112.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-13 09:36:56,272 INFO L158 Benchmark]: TraceAbstraction took 4147.52ms. Allocated memory was 176.2MB in the beginning and 230.7MB in the end (delta: 54.5MB). Free memory was 110.9MB in the beginning and 105.9MB in the end (delta: 5.0MB). Peak memory consumption was 60.5MB. Max. memory is 8.0GB. [2022-12-13 09:36:56,273 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 152.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 523.09ms. Allocated memory is still 176.2MB. Free memory was 150.2MB in the beginning and 128.1MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.08ms. Allocated memory is still 176.2MB. Free memory was 128.1MB in the beginning and 126.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.15ms. Allocated memory is still 176.2MB. Free memory was 126.6MB in the beginning and 125.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 411.41ms. Allocated memory is still 176.2MB. Free memory was 125.0MB in the beginning and 112.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4147.52ms. Allocated memory was 176.2MB in the beginning and 230.7MB in the end (delta: 54.5MB). Free memory was 110.9MB in the beginning and 105.9MB in the end (delta: 5.0MB). Peak memory consumption was 60.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 62 PlacesBefore, 25 PlacesAfterwards, 56 TransitionsBefore, 19 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 24 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 622, independent: 584, independent conditional: 584, independent unconditional: 0, dependent: 38, dependent conditional: 38, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 511, independent: 485, independent conditional: 0, independent unconditional: 485, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 511, independent: 485, independent conditional: 0, independent unconditional: 485, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 511, independent: 471, independent conditional: 0, independent unconditional: 471, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 116, independent: 50, independent conditional: 0, independent unconditional: 50, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 622, independent: 99, independent conditional: 99, independent unconditional: 0, dependent: 12, dependent conditional: 12, dependent unconditional: 0, unknown: 511, unknown conditional: 511, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 511, Positive cache size: 485, Positive conditional cache size: 485, Positive unconditional cache size: 0, Negative cache size: 26, Negative conditional cache size: 26, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 26 PlacesBefore, 26 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 81, independent: 65, independent conditional: 65, independent unconditional: 0, dependent: 16, dependent conditional: 16, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 57, independent: 47, independent conditional: 1, independent unconditional: 46, dependent: 10, dependent conditional: 2, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 57, independent: 47, independent conditional: 1, independent unconditional: 46, dependent: 10, dependent conditional: 2, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 57, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 10, dependent conditional: 2, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 58, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 34, dependent conditional: 3, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 81, independent: 18, independent conditional: 18, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 57, unknown conditional: 57, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 47, Positive conditional cache size: 47, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 30 PlacesBefore, 30 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 150 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7, independent: 4, independent conditional: 4, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, independent: 4, independent conditional: 2, independent unconditional: 2, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, independent: 4, independent conditional: 2, independent unconditional: 2, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, independent: 4, independent conditional: 0, independent unconditional: 4, 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: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 51, Positive conditional cache size: 51, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 33 PlacesBefore, 32 PlacesAfterwards, 17 TransitionsBefore, 16 TransitionsAfterwards, 96 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 70, independent: 48, independent conditional: 48, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, independent: 7, independent conditional: 1, independent unconditional: 6, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 7, independent conditional: 1, 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: 9, independent: 7, independent conditional: 0, independent unconditional: 7, 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: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 70, independent: 41, independent conditional: 41, independent unconditional: 0, dependent: 20, dependent conditional: 20, dependent unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 58, Positive conditional cache size: 58, Positive unconditional cache size: 0, Negative cache size: 13, Negative conditional cache size: 13, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 26 PlacesBefore, 26 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 56 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29, independent: 15, independent conditional: 15, independent unconditional: 0, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, independent: 15, independent conditional: 15, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, independent: 15, independent conditional: 15, independent unconditional: 0, 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: 17, independent: 15, independent conditional: 0, independent unconditional: 15, 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: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 29, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 12, dependent conditional: 12, dependent unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 73, Positive conditional cache size: 73, Positive unconditional cache size: 0, Negative cache size: 15, Negative conditional cache size: 15, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 28 PlacesBefore, 25 PlacesAfterwards, 22 TransitionsBefore, 19 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: 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: 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: 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): 88, Positive cache size: 73, Positive conditional cache size: 73, Positive unconditional cache size: 0, Negative cache size: 15, Negative conditional cache size: 15, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 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: 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: 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: 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): 88, Positive cache size: 73, Positive conditional cache size: 73, Positive unconditional cache size: 0, Negative cache size: 15, Negative conditional cache size: 15, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 5 procedures, 83 locations, 3 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: 4.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 163 IncrementalHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 5 mSDtfsCounter, 163 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=5, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 150 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! [2022-12-13 09:36:56,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...