/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-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 23:41:57,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 23:41:57,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 23:41:57,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 23:41:57,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 23:41:57,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 23:41:57,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 23:41:57,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 23:41:57,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 23:41:57,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 23:41:57,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 23:41:57,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 23:41:57,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 23:41:57,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 23:41:57,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 23:41:57,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 23:41:57,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 23:41:57,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 23:41:57,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 23:41:57,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 23:41:57,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 23:41:57,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 23:41:57,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 23:41:57,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 23:41:57,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 23:41:57,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 23:41:57,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 23:41:57,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 23:41:57,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 23:41:57,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 23:41:57,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 23:41:57,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 23:41:57,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 23:41:57,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 23:41:57,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 23:41:57,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 23:41:57,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 23:41:57,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 23:41:57,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 23:41:57,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 23:41:57,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 23:41:57,846 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-NoLbe.epf [2022-12-11 23:41:57,875 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 23:41:57,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 23:41:57,876 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 23:41:57,876 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 23:41:57,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 23:41:57,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 23:41:57,878 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 23:41:57,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 23:41:57,878 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 23:41:57,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 23:41:57,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 23:41:57,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 23:41:57,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 23:41:57,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 23:41:57,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 23:41:57,880 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 23:41:57,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 23:41:57,880 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 23:41:57,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 23:41:57,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 23:41:57,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 23:41:57,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 23:41:57,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 23:41:57,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:41:57,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 23:41:57,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 23:41:57,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 23:41:57,882 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 23:41:57,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 23:41:57,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 23:41:57,882 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 23:41:57,882 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-11 23:41:58,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 23:41:58,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 23:41:58,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 23:41:58,191 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 23:41:58,192 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 23:41:58,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.i [2022-12-11 23:41:59,360 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 23:41:59,650 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 23:41:59,650 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.i [2022-12-11 23:41:59,667 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6610cb616/8672abc9a50543748ff98df6b07a36f2/FLAG9f1152df9 [2022-12-11 23:41:59,681 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6610cb616/8672abc9a50543748ff98df6b07a36f2 [2022-12-11 23:41:59,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 23:41:59,683 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 23:41:59,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 23:41:59,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 23:41:59,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 23:41:59,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:41:59" (1/1) ... [2022-12-11 23:41:59,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c1a50c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:41:59, skipping insertion in model container [2022-12-11 23:41:59,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:41:59" (1/1) ... [2022-12-11 23:41:59,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 23:41:59,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 23:41:59,865 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/safe013_tso.i[945,958] [2022-12-11 23:42:00,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,037 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,038 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,038 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,038 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,038 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,039 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:42:00,050 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 23:42:00,063 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/safe013_tso.i[945,958] [2022-12-11 23:42:00,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,092 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,092 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,092 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,092 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,093 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 23:42:00,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 23:42:00,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:42:00,135 INFO L208 MainTranslator]: Completed translation [2022-12-11 23:42:00,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:00 WrapperNode [2022-12-11 23:42:00,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 23:42:00,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 23:42:00,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 23:42:00,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 23:42:00,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:00" (1/1) ... [2022-12-11 23:42:00,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:00" (1/1) ... [2022-12-11 23:42:00,196 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-11 23:42:00,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 23:42:00,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 23:42:00,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 23:42:00,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 23:42:00,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:00" (1/1) ... [2022-12-11 23:42:00,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:00" (1/1) ... [2022-12-11 23:42:00,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:00" (1/1) ... [2022-12-11 23:42:00,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:00" (1/1) ... [2022-12-11 23:42:00,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:00" (1/1) ... [2022-12-11 23:42:00,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:00" (1/1) ... [2022-12-11 23:42:00,228 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:00" (1/1) ... [2022-12-11 23:42:00,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:00" (1/1) ... [2022-12-11 23:42:00,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 23:42:00,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 23:42:00,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 23:42:00,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 23:42:00,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:00" (1/1) ... [2022-12-11 23:42:00,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:42:00,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 23:42:00,272 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) [2022-12-11 23:42:00,295 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 [2022-12-11 23:42:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 23:42:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 23:42:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 23:42:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 23:42:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 23:42:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-11 23:42:00,312 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-11 23:42:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-11 23:42:00,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-11 23:42:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-11 23:42:00,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-11 23:42:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 23:42:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 23:42:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 23:42:00,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 23:42:00,315 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 23:42:00,514 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 23:42:00,516 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 23:42:00,674 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 23:42:00,680 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 23:42:00,680 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 23:42:00,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:42:00 BoogieIcfgContainer [2022-12-11 23:42:00,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 23:42:00,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 23:42:00,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 23:42:00,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 23:42:00,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 11:41:59" (1/3) ... [2022-12-11 23:42:00,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7168692d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:42:00, skipping insertion in model container [2022-12-11 23:42:00,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:42:00" (2/3) ... [2022-12-11 23:42:00,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7168692d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:42:00, skipping insertion in model container [2022-12-11 23:42:00,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:42:00" (3/3) ... [2022-12-11 23:42:00,689 INFO L112 eAbstractionObserver]: Analyzing ICFG safe013_tso.i [2022-12-11 23:42:00,706 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 23:42:00,706 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 23:42:00,707 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 23:42:00,760 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 23:42:00,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2022-12-11 23:42:00,825 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-11 23:42:00,826 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 23:42:00,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-11 23:42:00,830 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2022-12-11 23:42:00,834 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2022-12-11 23:42:00,842 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 23:42:00,847 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@71f2ab90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 23:42:00,847 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 23:42:00,871 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2022-12-11 23:42:00,871 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 23:42:00,871 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:00,872 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:00,872 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:00,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:00,877 INFO L85 PathProgramCache]: Analyzing trace with hash -67635142, now seen corresponding path program 1 times [2022-12-11 23:42:00,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:00,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680915104] [2022-12-11 23:42:00,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:00,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:01,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:01,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:01,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680915104] [2022-12-11 23:42:01,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680915104] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:01,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:01,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:01,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118203228] [2022-12-11 23:42:01,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:01,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:01,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:01,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:01,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:01,739 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2022-12-11 23:42:01,743 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 149 flow. Second operand has 7 states, 7 states have (on average 66.71428571428571) internal successors, (467), 7 states have internal predecessors, (467), 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) [2022-12-11 23:42:01,743 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:01,743 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2022-12-11 23:42:01,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:02,156 INFO L130 PetriNetUnfolder]: 91/319 cut-off events. [2022-12-11 23:42:02,156 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-11 23:42:02,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 319 events. 91/319 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1407 event pairs, 14 based on Foata normal form. 14/320 useless extension candidates. Maximal degree in co-relation 500. Up to 60 conditions per place. [2022-12-11 23:42:02,163 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 19 selfloop transitions, 5 changer transitions 35/112 dead transitions. [2022-12-11 23:42:02,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 112 transitions, 351 flow [2022-12-11 23:42:02,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:42:02,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:42:02,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 910 transitions. [2022-12-11 23:42:02,185 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8235294117647058 [2022-12-11 23:42:02,191 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 12 predicate places. [2022-12-11 23:42:02,192 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 112 transitions, 351 flow [2022-12-11 23:42:02,194 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 77 transitions, 211 flow [2022-12-11 23:42:02,195 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 77 transitions, 211 flow [2022-12-11 23:42:02,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 66.71428571428571) internal successors, (467), 7 states have internal predecessors, (467), 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) [2022-12-11 23:42:02,196 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:02,197 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:02,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 23:42:02,197 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:02,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:02,199 INFO L85 PathProgramCache]: Analyzing trace with hash 290682171, now seen corresponding path program 1 times [2022-12-11 23:42:02,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:02,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733442541] [2022-12-11 23:42:02,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:02,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:02,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:02,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:02,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733442541] [2022-12-11 23:42:02,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733442541] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:02,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:02,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:02,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798794313] [2022-12-11 23:42:02,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:02,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:02,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:02,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:02,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:02,482 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 85 [2022-12-11 23:42:02,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 77 transitions, 211 flow. Second operand has 7 states, 7 states have (on average 66.85714285714286) internal successors, (468), 7 states have internal predecessors, (468), 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) [2022-12-11 23:42:02,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:02,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 85 [2022-12-11 23:42:02,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:02,715 INFO L130 PetriNetUnfolder]: 55/287 cut-off events. [2022-12-11 23:42:02,716 INFO L131 PetriNetUnfolder]: For 31/93 co-relation queries the response was YES. [2022-12-11 23:42:02,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 583 conditions, 287 events. 55/287 cut-off events. For 31/93 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1356 event pairs, 5 based on Foata normal form. 9/290 useless extension candidates. Maximal degree in co-relation 543. Up to 81 conditions per place. [2022-12-11 23:42:02,722 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 20 selfloop transitions, 8 changer transitions 28/109 dead transitions. [2022-12-11 23:42:02,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 109 transitions, 457 flow [2022-12-11 23:42:02,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:42:02,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:42:02,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 902 transitions. [2022-12-11 23:42:02,725 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.816289592760181 [2022-12-11 23:42:02,726 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 15 predicate places. [2022-12-11 23:42:02,726 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 109 transitions, 457 flow [2022-12-11 23:42:02,728 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 81 transitions, 289 flow [2022-12-11 23:42:02,728 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 81 transitions, 289 flow [2022-12-11 23:42:02,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 66.85714285714286) internal successors, (468), 7 states have internal predecessors, (468), 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) [2022-12-11 23:42:02,729 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:02,729 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:02,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 23:42:02,729 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:02,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:02,730 INFO L85 PathProgramCache]: Analyzing trace with hash 813954812, now seen corresponding path program 1 times [2022-12-11 23:42:02,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:02,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074980536] [2022-12-11 23:42:02,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:02,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:02,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:02,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:02,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074980536] [2022-12-11 23:42:02,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074980536] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:02,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:02,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:02,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079273868] [2022-12-11 23:42:02,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:02,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:02,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:02,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:02,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:02,951 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 23:42:02,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 81 transitions, 289 flow. Second operand has 7 states, 7 states have (on average 69.71428571428571) internal successors, (488), 7 states have internal predecessors, (488), 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) [2022-12-11 23:42:02,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:02,952 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 23:42:02,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:03,110 INFO L130 PetriNetUnfolder]: 88/425 cut-off events. [2022-12-11 23:42:03,110 INFO L131 PetriNetUnfolder]: For 174/250 co-relation queries the response was YES. [2022-12-11 23:42:03,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 425 events. 88/425 cut-off events. For 174/250 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2329 event pairs, 16 based on Foata normal form. 14/424 useless extension candidates. Maximal degree in co-relation 882. Up to 121 conditions per place. [2022-12-11 23:42:03,114 INFO L137 encePairwiseOnDemand]: 77/85 looper letters, 17 selfloop transitions, 5 changer transitions 19/102 dead transitions. [2022-12-11 23:42:03,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 102 transitions, 491 flow [2022-12-11 23:42:03,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 23:42:03,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 23:42:03,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 708 transitions. [2022-12-11 23:42:03,116 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8329411764705882 [2022-12-11 23:42:03,117 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 15 predicate places. [2022-12-11 23:42:03,117 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 102 transitions, 491 flow [2022-12-11 23:42:03,119 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 83 transitions, 351 flow [2022-12-11 23:42:03,119 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 83 transitions, 351 flow [2022-12-11 23:42:03,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.71428571428571) internal successors, (488), 7 states have internal predecessors, (488), 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) [2022-12-11 23:42:03,120 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:03,120 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:03,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 23:42:03,120 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:03,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:03,121 INFO L85 PathProgramCache]: Analyzing trace with hash -164676253, now seen corresponding path program 1 times [2022-12-11 23:42:03,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:03,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521707955] [2022-12-11 23:42:03,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:03,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:03,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:03,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:03,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521707955] [2022-12-11 23:42:03,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521707955] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:03,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:03,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 23:42:03,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994819515] [2022-12-11 23:42:03,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:03,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 23:42:03,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:03,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 23:42:03,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 23:42:03,259 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 23:42:03,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 83 transitions, 351 flow. Second operand has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 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) [2022-12-11 23:42:03,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:03,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 23:42:03,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:03,435 INFO L130 PetriNetUnfolder]: 340/943 cut-off events. [2022-12-11 23:42:03,435 INFO L131 PetriNetUnfolder]: For 276/320 co-relation queries the response was YES. [2022-12-11 23:42:03,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2003 conditions, 943 events. 340/943 cut-off events. For 276/320 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 6071 event pairs, 12 based on Foata normal form. 2/882 useless extension candidates. Maximal degree in co-relation 1954. Up to 233 conditions per place. [2022-12-11 23:42:03,443 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 32 selfloop transitions, 17 changer transitions 3/117 dead transitions. [2022-12-11 23:42:03,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 117 transitions, 559 flow [2022-12-11 23:42:03,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 23:42:03,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 23:42:03,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 728 transitions. [2022-12-11 23:42:03,446 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8564705882352941 [2022-12-11 23:42:03,447 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 18 predicate places. [2022-12-11 23:42:03,447 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 117 transitions, 559 flow [2022-12-11 23:42:03,452 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 114 transitions, 547 flow [2022-12-11 23:42:03,453 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 114 transitions, 547 flow [2022-12-11 23:42:03,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 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) [2022-12-11 23:42:03,453 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:03,454 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:03,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 23:42:03,454 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:03,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:03,456 INFO L85 PathProgramCache]: Analyzing trace with hash -173493180, now seen corresponding path program 1 times [2022-12-11 23:42:03,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:03,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740859375] [2022-12-11 23:42:03,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:03,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:03,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:03,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:03,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740859375] [2022-12-11 23:42:03,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740859375] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:03,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:03,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:03,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082461171] [2022-12-11 23:42:03,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:03,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:03,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:03,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:03,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:03,669 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 23:42:03,670 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 114 transitions, 547 flow. Second operand has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 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) [2022-12-11 23:42:03,670 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:03,670 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 23:42:03,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:03,890 INFO L130 PetriNetUnfolder]: 287/843 cut-off events. [2022-12-11 23:42:03,891 INFO L131 PetriNetUnfolder]: For 437/913 co-relation queries the response was YES. [2022-12-11 23:42:03,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2213 conditions, 843 events. 287/843 cut-off events. For 437/913 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5909 event pairs, 2 based on Foata normal form. 74/859 useless extension candidates. Maximal degree in co-relation 2160. Up to 236 conditions per place. [2022-12-11 23:42:03,897 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 34 selfloop transitions, 38 changer transitions 20/157 dead transitions. [2022-12-11 23:42:03,897 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 157 transitions, 912 flow [2022-12-11 23:42:03,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-11 23:42:03,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-11 23:42:03,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 946 transitions. [2022-12-11 23:42:03,900 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8561085972850678 [2022-12-11 23:42:03,901 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 30 predicate places. [2022-12-11 23:42:03,901 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 157 transitions, 912 flow [2022-12-11 23:42:03,905 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 137 transitions, 792 flow [2022-12-11 23:42:03,905 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 137 transitions, 792 flow [2022-12-11 23:42:03,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 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) [2022-12-11 23:42:03,906 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:03,906 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:03,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 23:42:03,906 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:03,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:03,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1849761689, now seen corresponding path program 1 times [2022-12-11 23:42:03,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:03,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175963035] [2022-12-11 23:42:03,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:03,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:04,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:04,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:04,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175963035] [2022-12-11 23:42:04,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175963035] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:04,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:04,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 23:42:04,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770742773] [2022-12-11 23:42:04,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:04,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 23:42:04,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:04,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 23:42:04,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-11 23:42:04,048 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 23:42:04,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 137 transitions, 792 flow. Second operand has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 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) [2022-12-11 23:42:04,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:04,049 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 23:42:04,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:04,246 INFO L130 PetriNetUnfolder]: 323/1223 cut-off events. [2022-12-11 23:42:04,247 INFO L131 PetriNetUnfolder]: For 868/1077 co-relation queries the response was YES. [2022-12-11 23:42:04,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3205 conditions, 1223 events. 323/1223 cut-off events. For 868/1077 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 9868 event pairs, 1 based on Foata normal form. 18/1211 useless extension candidates. Maximal degree in co-relation 3147. Up to 290 conditions per place. [2022-12-11 23:42:04,253 INFO L137 encePairwiseOnDemand]: 79/85 looper letters, 32 selfloop transitions, 2 changer transitions 43/157 dead transitions. [2022-12-11 23:42:04,253 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 157 transitions, 1102 flow [2022-12-11 23:42:04,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 23:42:04,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 23:42:04,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 501 transitions. [2022-12-11 23:42:04,256 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8420168067226891 [2022-12-11 23:42:04,258 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 36 predicate places. [2022-12-11 23:42:04,258 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 157 transitions, 1102 flow [2022-12-11 23:42:04,261 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 114 transitions, 757 flow [2022-12-11 23:42:04,261 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 114 transitions, 757 flow [2022-12-11 23:42:04,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 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) [2022-12-11 23:42:04,262 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:42:04,262 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 23:42:04,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-11 23:42:04,262 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-11 23:42:04,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:42:04,263 INFO L85 PathProgramCache]: Analyzing trace with hash -324572033, now seen corresponding path program 2 times [2022-12-11 23:42:04,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:42:04,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797381603] [2022-12-11 23:42:04,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:42:04,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:42:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 23:42:04,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 23:42:04,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 23:42:04,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797381603] [2022-12-11 23:42:04,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797381603] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 23:42:04,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 23:42:04,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-11 23:42:04,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335092637] [2022-12-11 23:42:04,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 23:42:04,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-11 23:42:04,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 23:42:04,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-11 23:42:04,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-11 23:42:04,419 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-11 23:42:04,420 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 114 transitions, 757 flow. Second operand has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 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) [2022-12-11 23:42:04,420 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 23:42:04,420 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-11 23:42:04,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 23:42:04,617 INFO L130 PetriNetUnfolder]: 75/458 cut-off events. [2022-12-11 23:42:04,618 INFO L131 PetriNetUnfolder]: For 891/1330 co-relation queries the response was YES. [2022-12-11 23:42:04,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1527 conditions, 458 events. 75/458 cut-off events. For 891/1330 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3371 event pairs, 1 based on Foata normal form. 74/511 useless extension candidates. Maximal degree in co-relation 1465. Up to 118 conditions per place. [2022-12-11 23:42:04,620 INFO L137 encePairwiseOnDemand]: 77/85 looper letters, 0 selfloop transitions, 0 changer transitions 105/105 dead transitions. [2022-12-11 23:42:04,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 105 transitions, 763 flow [2022-12-11 23:42:04,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-11 23:42:04,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-11 23:42:04,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1061 transitions. [2022-12-11 23:42:04,623 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.832156862745098 [2022-12-11 23:42:04,623 INFO L295 CegarLoopForPetriNet]: 79 programPoint places, 36 predicate places. [2022-12-11 23:42:04,623 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 105 transitions, 763 flow [2022-12-11 23:42:04,624 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-11 23:42:04,624 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-11 23:42:04,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 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) [2022-12-11 23:42:04,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 23:42:04,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 23:42:04,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 23:42:04,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-11 23:42:04,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-11 23:42:04,628 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-12-11 23:42:04,633 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 23:42:04,633 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 23:42:04,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 11:42:04 BasicIcfg [2022-12-11 23:42:04,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 23:42:04,640 INFO L158 Benchmark]: Toolchain (without parser) took 4954.34ms. Allocated memory was 182.5MB in the beginning and 272.6MB in the end (delta: 90.2MB). Free memory was 158.5MB in the beginning and 144.0MB in the end (delta: 14.5MB). Peak memory consumption was 105.7MB. Max. memory is 8.0GB. [2022-12-11 23:42:04,641 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 159.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 23:42:04,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.84ms. Allocated memory is still 182.5MB. Free memory was 158.5MB in the beginning and 134.9MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-11 23:42:04,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.93ms. Allocated memory is still 182.5MB. Free memory was 134.9MB in the beginning and 132.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 23:42:04,644 INFO L158 Benchmark]: Boogie Preprocessor took 33.73ms. Allocated memory is still 182.5MB. Free memory was 132.8MB in the beginning and 131.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 23:42:04,645 INFO L158 Benchmark]: RCFGBuilder took 450.61ms. Allocated memory is still 182.5MB. Free memory was 131.2MB in the beginning and 117.6MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-11 23:42:04,647 INFO L158 Benchmark]: TraceAbstraction took 3952.45ms. Allocated memory was 182.5MB in the beginning and 272.6MB in the end (delta: 90.2MB). Free memory was 116.6MB in the beginning and 144.0MB in the end (delta: -27.4MB). Peak memory consumption was 63.8MB. Max. memory is 8.0GB. [2022-12-11 23:42:04,650 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 182.5MB. Free memory is still 159.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 452.84ms. Allocated memory is still 182.5MB. Free memory was 158.5MB in the beginning and 134.9MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.93ms. Allocated memory is still 182.5MB. Free memory was 134.9MB in the beginning and 132.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.73ms. Allocated memory is still 182.5MB. Free memory was 132.8MB in the beginning and 131.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 450.61ms. Allocated memory is still 182.5MB. Free memory was 131.2MB in the beginning and 117.6MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3952.45ms. Allocated memory was 182.5MB in the beginning and 272.6MB in the end (delta: 90.2MB). Free memory was 116.6MB in the beginning and 144.0MB in the end (delta: -27.4MB). Peak memory consumption was 63.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 335 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 335 mSDsluCounter, 315 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 236 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 403 IncrementalHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 79 mSDtfsCounter, 403 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=792occurred in iteration=5, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 1688 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 391 NumberOfCodeBlocks, 391 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 384 ConstructedInterpolants, 0 QuantifiedInterpolants, 1464 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2022-12-11 23:42:04,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...