/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_REDUNDANT_FLOW -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 12:00:09,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 12:00:09,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 12:00:09,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 12:00:09,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 12:00:09,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 12:00:09,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 12:00:09,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 12:00:09,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 12:00:09,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 12:00:09,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 12:00:09,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 12:00:09,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 12:00:09,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 12:00:09,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 12:00:09,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 12:00:09,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 12:00:09,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 12:00:09,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 12:00:09,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 12:00:09,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 12:00:09,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 12:00:09,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 12:00:09,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 12:00:09,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 12:00:09,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 12:00:09,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 12:00:09,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 12:00:09,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 12:00:09,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 12:00:09,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 12:00:09,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 12:00:09,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 12:00:09,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 12:00:09,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 12:00:09,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 12:00:09,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 12:00:09,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 12:00:09,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 12:00:09,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 12:00:09,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 12:00:09,881 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 [2022-12-12 12:00:09,907 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 12:00:09,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 12:00:09,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 12:00:09,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 12:00:09,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 12:00:09,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 12:00:09,910 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 12:00:09,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 12:00:09,910 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 12:00:09,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 12:00:09,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 12:00:09,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 12:00:09,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 12:00:09,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 12:00:09,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 12:00:09,911 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 12:00:09,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 12:00:09,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 12:00:09,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 12:00:09,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 12:00:09,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 12:00:09,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 12:00:09,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 12:00:09,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:00:09,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 12:00:09,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 12:00:09,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 12:00:09,913 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 12:00:09,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 12:00:09,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 12:00:09,913 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 12:00:09,913 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_REDUNDANT_FLOW [2022-12-12 12:00:10,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 12:00:10,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 12:00:10,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 12:00:10,426 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 12:00:10,439 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 12:00:10,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-12 12:00:11,609 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 12:00:12,010 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 12:00:12,011 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-12 12:00:12,035 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc1f283d1/6e688f2f8bda442a8f06c4ec89b3f08c/FLAG1efd58604 [2022-12-12 12:00:12,072 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc1f283d1/6e688f2f8bda442a8f06c4ec89b3f08c [2022-12-12 12:00:12,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 12:00:12,075 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 12:00:12,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 12:00:12,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 12:00:12,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 12:00:12,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:00:12" (1/1) ... [2022-12-12 12:00:12,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bf2fac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:12, skipping insertion in model container [2022-12-12 12:00:12,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:00:12" (1/1) ... [2022-12-12 12:00:12,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 12:00:12,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 12:00:12,422 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-12 12:00:12,632 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,636 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,636 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,636 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,636 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,636 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,637 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,637 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,637 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,637 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,638 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,638 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,638 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,638 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,638 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:00:12,670 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 12:00:12,695 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-12 12:00:12,737 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 12:00:12,749 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 12:00:12,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:00:12,811 INFO L208 MainTranslator]: Completed translation [2022-12-12 12:00:12,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:12 WrapperNode [2022-12-12 12:00:12,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 12:00:12,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 12:00:12,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 12:00:12,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 12:00:12,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:12" (1/1) ... [2022-12-12 12:00:12,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:12" (1/1) ... [2022-12-12 12:00:12,846 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-12-12 12:00:12,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 12:00:12,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 12:00:12,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 12:00:12,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 12:00:12,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:12" (1/1) ... [2022-12-12 12:00:12,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:12" (1/1) ... [2022-12-12 12:00:12,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:12" (1/1) ... [2022-12-12 12:00:12,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:12" (1/1) ... [2022-12-12 12:00:12,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:12" (1/1) ... [2022-12-12 12:00:12,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:12" (1/1) ... [2022-12-12 12:00:12,862 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:12" (1/1) ... [2022-12-12 12:00:12,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:12" (1/1) ... [2022-12-12 12:00:12,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 12:00:12,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 12:00:12,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 12:00:12,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 12:00:12,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:12" (1/1) ... [2022-12-12 12:00:12,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:00:12,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:00:12,894 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) [2022-12-12 12:00:12,897 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 [2022-12-12 12:00:12,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 12:00:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 12:00:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 12:00:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 12:00:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 12:00:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 12:00:12,938 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 12:00:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 12:00:12,938 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 12:00:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 12:00:12,938 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 12:00:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 12:00:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 12:00:12,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 12:00:12,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 12:00:12,940 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 12:00:13,080 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 12:00:13,082 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 12:00:13,227 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 12:00:13,231 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 12:00:13,231 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 12:00:13,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:00:13 BoogieIcfgContainer [2022-12-12 12:00:13,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 12:00:13,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 12:00:13,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 12:00:13,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 12:00:13,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 12:00:12" (1/3) ... [2022-12-12 12:00:13,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7c08ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:00:13, skipping insertion in model container [2022-12-12 12:00:13,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:00:12" (2/3) ... [2022-12-12 12:00:13,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7c08ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:00:13, skipping insertion in model container [2022-12-12 12:00:13,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:00:13" (3/3) ... [2022-12-12 12:00:13,238 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-12 12:00:13,252 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 12:00:13,252 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 12:00:13,252 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 12:00:13,314 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 12:00:13,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 83 transitions, 181 flow [2022-12-12 12:00:13,401 INFO L130 PetriNetUnfolder]: 2/80 cut-off events. [2022-12-12 12:00:13,401 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 12:00:13,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-12-12 12:00:13,405 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 83 transitions, 181 flow [2022-12-12 12:00:13,408 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 68 transitions, 145 flow [2022-12-12 12:00:13,419 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 12:00:13,424 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;@5f997b01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 12:00:13,425 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 12:00:13,450 INFO L130 PetriNetUnfolder]: 1/67 cut-off events. [2022-12-12 12:00:13,451 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 12:00:13,451 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:00:13,452 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] [2022-12-12 12:00:13,453 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)] === [2022-12-12 12:00:13,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:00:13,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1374275782, now seen corresponding path program 1 times [2022-12-12 12:00:13,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:00:13,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095401348] [2022-12-12 12:00:13,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:00:13,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:00:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:00:14,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:00:14,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:00:14,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095401348] [2022-12-12 12:00:14,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095401348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:00:14,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:00:14,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 12:00:14,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33182814] [2022-12-12 12:00:14,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:00:14,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 12:00:14,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:00:14,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 12:00:14,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 12:00:14,181 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 83 [2022-12-12 12:00:14,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 68 transitions, 145 flow. Second operand has 7 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 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) [2022-12-12 12:00:14,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:00:14,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 83 [2022-12-12 12:00:14,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:00:14,500 INFO L130 PetriNetUnfolder]: 163/484 cut-off events. [2022-12-12 12:00:14,500 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-12 12:00:14,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 815 conditions, 484 events. 163/484 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2588 event pairs, 18 based on Foata normal form. 18/484 useless extension candidates. Maximal degree in co-relation 782. Up to 107 conditions per place. [2022-12-12 12:00:14,505 INFO L137 encePairwiseOnDemand]: 72/83 looper letters, 20 selfloop transitions, 6 changer transitions 35/112 dead transitions. [2022-12-12 12:00:14,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 112 transitions, 361 flow [2022-12-12 12:00:14,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:00:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:00:14,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 886 transitions. [2022-12-12 12:00:14,523 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8211306765523633 [2022-12-12 12:00:14,529 INFO L295 CegarLoopForPetriNet]: 77 programPoint places, 12 predicate places. [2022-12-12 12:00:14,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 112 transitions, 361 flow [2022-12-12 12:00:14,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 112 transitions, 350 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-12 12:00:14,534 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 112 transitions, 350 flow [2022-12-12 12:00:14,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 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) [2022-12-12 12:00:14,534 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:00:14,534 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] [2022-12-12 12:00:14,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 12:00:14,535 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)] === [2022-12-12 12:00:14,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:00:14,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1955449031, now seen corresponding path program 1 times [2022-12-12 12:00:14,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:00:14,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611673306] [2022-12-12 12:00:14,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:00:14,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:00:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:00:14,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:00:14,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:00:14,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611673306] [2022-12-12 12:00:14,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611673306] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:00:14,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:00:14,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 12:00:14,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952595233] [2022-12-12 12:00:14,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:00:14,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 12:00:14,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:00:14,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 12:00:14,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-12 12:00:14,814 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 83 [2022-12-12 12:00:14,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 112 transitions, 350 flow. Second operand has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 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) [2022-12-12 12:00:14,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:00:14,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 83 [2022-12-12 12:00:14,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:00:15,127 INFO L130 PetriNetUnfolder]: 538/1429 cut-off events. [2022-12-12 12:00:15,127 INFO L131 PetriNetUnfolder]: For 115/575 co-relation queries the response was YES. [2022-12-12 12:00:15,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3196 conditions, 1429 events. 538/1429 cut-off events. For 115/575 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 10424 event pairs, 10 based on Foata normal form. 39/1444 useless extension candidates. Maximal degree in co-relation 3162. Up to 248 conditions per place. [2022-12-12 12:00:15,139 INFO L137 encePairwiseOnDemand]: 72/83 looper letters, 44 selfloop transitions, 15 changer transitions 232/340 dead transitions. [2022-12-12 12:00:15,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 340 transitions, 1846 flow [2022-12-12 12:00:15,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-12 12:00:15,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-12 12:00:15,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1146 transitions. [2022-12-12 12:00:15,142 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.81218993621545 [2022-12-12 12:00:15,143 INFO L295 CegarLoopForPetriNet]: 77 programPoint places, 25 predicate places. [2022-12-12 12:00:15,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 340 transitions, 1846 flow [2022-12-12 12:00:15,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 340 transitions, 1838 flow, removed 4 selfloop flow, removed 0 redundant places. [2022-12-12 12:00:15,152 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 340 transitions, 1838 flow [2022-12-12 12:00:15,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.0) internal successors, (441), 7 states have internal predecessors, (441), 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) [2022-12-12 12:00:15,152 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:00:15,152 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] [2022-12-12 12:00:15,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 12:00:15,153 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)] === [2022-12-12 12:00:15,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:00:15,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1487985674, now seen corresponding path program 1 times [2022-12-12 12:00:15,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:00:15,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865040778] [2022-12-12 12:00:15,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:00:15,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:00:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:00:15,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:00:15,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:00:15,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865040778] [2022-12-12 12:00:15,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865040778] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:00:15,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:00:15,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 12:00:15,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729264781] [2022-12-12 12:00:15,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:00:15,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 12:00:15,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:00:15,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 12:00:15,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-12 12:00:15,398 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 83 [2022-12-12 12:00:15,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 340 transitions, 1838 flow. Second operand has 8 states, 8 states have (on average 62.875) internal successors, (503), 8 states have internal predecessors, (503), 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) [2022-12-12 12:00:15,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:00:15,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 83 [2022-12-12 12:00:15,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:00:15,753 INFO L130 PetriNetUnfolder]: 553/1465 cut-off events. [2022-12-12 12:00:15,753 INFO L131 PetriNetUnfolder]: For 364/2063 co-relation queries the response was YES. [2022-12-12 12:00:15,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4385 conditions, 1465 events. 553/1465 cut-off events. For 364/2063 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 10913 event pairs, 5 based on Foata normal form. 86/1529 useless extension candidates. Maximal degree in co-relation 4348. Up to 257 conditions per place. [2022-12-12 12:00:15,759 INFO L137 encePairwiseOnDemand]: 72/83 looper letters, 26 selfloop transitions, 7 changer transitions 326/408 dead transitions. [2022-12-12 12:00:15,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 408 transitions, 2956 flow [2022-12-12 12:00:15,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-12 12:00:15,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-12 12:00:15,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1119 transitions. [2022-12-12 12:00:15,762 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7930545712260808 [2022-12-12 12:00:15,765 INFO L295 CegarLoopForPetriNet]: 77 programPoint places, 41 predicate places. [2022-12-12 12:00:15,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 408 transitions, 2956 flow [2022-12-12 12:00:15,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 408 transitions, 2734 flow, removed 111 selfloop flow, removed 0 redundant places. [2022-12-12 12:00:15,773 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 408 transitions, 2734 flow [2022-12-12 12:00:15,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 62.875) internal successors, (503), 8 states have internal predecessors, (503), 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) [2022-12-12 12:00:15,773 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:00:15,773 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] [2022-12-12 12:00:15,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 12:00:15,773 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)] === [2022-12-12 12:00:15,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:00:15,775 INFO L85 PathProgramCache]: Analyzing trace with hash -422069280, now seen corresponding path program 1 times [2022-12-12 12:00:15,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:00:15,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434148544] [2022-12-12 12:00:15,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:00:15,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:00:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:00:15,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:00:15,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:00:15,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434148544] [2022-12-12 12:00:15,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434148544] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:00:15,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:00:15,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 12:00:15,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277677440] [2022-12-12 12:00:15,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:00:15,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 12:00:15,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:00:15,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 12:00:15,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-12 12:00:15,941 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 83 [2022-12-12 12:00:15,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 408 transitions, 2734 flow. Second operand has 8 states, 8 states have (on average 64.75) internal successors, (518), 8 states have internal predecessors, (518), 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) [2022-12-12 12:00:15,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:00:15,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 83 [2022-12-12 12:00:15,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:00:16,319 INFO L130 PetriNetUnfolder]: 714/2162 cut-off events. [2022-12-12 12:00:16,320 INFO L131 PetriNetUnfolder]: For 1086/2569 co-relation queries the response was YES. [2022-12-12 12:00:16,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6981 conditions, 2162 events. 714/2162 cut-off events. For 1086/2569 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 19041 event pairs, 0 based on Foata normal form. 84/2233 useless extension candidates. Maximal degree in co-relation 6941. Up to 304 conditions per place. [2022-12-12 12:00:16,328 INFO L137 encePairwiseOnDemand]: 74/83 looper letters, 15 selfloop transitions, 5 changer transitions 740/810 dead transitions. [2022-12-12 12:00:16,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 810 transitions, 7264 flow [2022-12-12 12:00:16,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-12 12:00:16,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-12 12:00:16,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1150 transitions. [2022-12-12 12:00:16,332 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.815024805102764 [2022-12-12 12:00:16,333 INFO L295 CegarLoopForPetriNet]: 77 programPoint places, 57 predicate places. [2022-12-12 12:00:16,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 810 transitions, 7264 flow [2022-12-12 12:00:16,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 810 transitions, 7258 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-12-12 12:00:16,349 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 810 transitions, 7258 flow [2022-12-12 12:00:16,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 64.75) internal successors, (518), 8 states have internal predecessors, (518), 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) [2022-12-12 12:00:16,349 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:00:16,350 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] [2022-12-12 12:00:16,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 12:00:16,350 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)] === [2022-12-12 12:00:16,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:00:16,350 INFO L85 PathProgramCache]: Analyzing trace with hash -977566105, now seen corresponding path program 1 times [2022-12-12 12:00:16,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:00:16,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530256299] [2022-12-12 12:00:16,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:00:16,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:00:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:00:16,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:00:16,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:00:16,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530256299] [2022-12-12 12:00:16,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530256299] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:00:16,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:00:16,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 12:00:16,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880695340] [2022-12-12 12:00:16,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:00:16,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 12:00:16,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:00:16,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 12:00:16,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-12 12:00:16,506 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 83 [2022-12-12 12:00:16,507 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 810 transitions, 7258 flow. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 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) [2022-12-12 12:00:16,507 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:00:16,507 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 83 [2022-12-12 12:00:16,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:00:17,022 INFO L130 PetriNetUnfolder]: 1691/4452 cut-off events. [2022-12-12 12:00:17,022 INFO L131 PetriNetUnfolder]: For 1911/2923 co-relation queries the response was YES. [2022-12-12 12:00:17,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11994 conditions, 4452 events. 1691/4452 cut-off events. For 1911/2923 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 43971 event pairs, 36 based on Foata normal form. 60/4236 useless extension candidates. Maximal degree in co-relation 11953. Up to 1024 conditions per place. [2022-12-12 12:00:17,041 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 12 selfloop transitions, 5 changer transitions 487/588 dead transitions. [2022-12-12 12:00:17,041 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 588 transitions, 5140 flow [2022-12-12 12:00:17,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-12 12:00:17,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-12 12:00:17,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 708 transitions. [2022-12-12 12:00:17,042 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8530120481927711 [2022-12-12 12:00:17,044 INFO L295 CegarLoopForPetriNet]: 77 programPoint places, 66 predicate places. [2022-12-12 12:00:17,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 588 transitions, 5140 flow [2022-12-12 12:00:17,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 588 transitions, 5136 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-12 12:00:17,054 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 588 transitions, 5136 flow [2022-12-12 12:00:17,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 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) [2022-12-12 12:00:17,055 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:00:17,055 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] [2022-12-12 12:00:17,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 12:00:17,055 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)] === [2022-12-12 12:00:17,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:00:17,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1880007972, now seen corresponding path program 1 times [2022-12-12 12:00:17,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:00:17,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800290126] [2022-12-12 12:00:17,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:00:17,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:00:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:00:17,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:00:17,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:00:17,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800290126] [2022-12-12 12:00:17,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800290126] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:00:17,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:00:17,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-12 12:00:17,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353998207] [2022-12-12 12:00:17,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:00:17,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-12 12:00:17,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:00:17,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-12 12:00:17,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-12 12:00:17,169 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 83 [2022-12-12 12:00:17,170 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 588 transitions, 5136 flow. Second operand has 7 states, 7 states have (on average 67.57142857142857) internal successors, (473), 7 states have internal predecessors, (473), 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) [2022-12-12 12:00:17,170 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:00:17,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 83 [2022-12-12 12:00:17,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:00:17,563 INFO L130 PetriNetUnfolder]: 1236/3342 cut-off events. [2022-12-12 12:00:17,563 INFO L131 PetriNetUnfolder]: For 1848/3761 co-relation queries the response was YES. [2022-12-12 12:00:17,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9482 conditions, 3342 events. 1236/3342 cut-off events. For 1848/3761 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 32452 event pairs, 0 based on Foata normal form. 189/3285 useless extension candidates. Maximal degree in co-relation 9439. Up to 971 conditions per place. [2022-12-12 12:00:17,574 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 8 selfloop transitions, 7 changer transitions 296/368 dead transitions. [2022-12-12 12:00:17,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 368 transitions, 3016 flow [2022-12-12 12:00:17,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 12:00:17,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 12:00:17,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 921 transitions. [2022-12-12 12:00:17,576 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8535681186283596 [2022-12-12 12:00:17,578 INFO L295 CegarLoopForPetriNet]: 77 programPoint places, 74 predicate places. [2022-12-12 12:00:17,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 368 transitions, 3016 flow [2022-12-12 12:00:17,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 368 transitions, 2821 flow, removed 67 selfloop flow, removed 7 redundant places. [2022-12-12 12:00:17,585 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 368 transitions, 2821 flow [2022-12-12 12:00:17,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.57142857142857) internal successors, (473), 7 states have internal predecessors, (473), 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) [2022-12-12 12:00:17,585 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:00:17,586 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] [2022-12-12 12:00:17,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 12:00:17,586 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)] === [2022-12-12 12:00:17,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:00:17,586 INFO L85 PathProgramCache]: Analyzing trace with hash -873623638, now seen corresponding path program 1 times [2022-12-12 12:00:17,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:00:17,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423466741] [2022-12-12 12:00:17,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:00:17,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:00:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:00:17,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:00:17,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:00:17,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423466741] [2022-12-12 12:00:17,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423466741] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:00:17,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:00:17,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-12 12:00:17,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643862855] [2022-12-12 12:00:17,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:00:17,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-12 12:00:17,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:00:17,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-12 12:00:17,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-12 12:00:17,723 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 83 [2022-12-12 12:00:17,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 368 transitions, 2821 flow. Second operand has 8 states, 8 states have (on average 67.5) internal successors, (540), 8 states have internal predecessors, (540), 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) [2022-12-12 12:00:17,726 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:00:17,726 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 83 [2022-12-12 12:00:17,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:00:18,118 INFO L130 PetriNetUnfolder]: 1107/2931 cut-off events. [2022-12-12 12:00:18,119 INFO L131 PetriNetUnfolder]: For 1590/3583 co-relation queries the response was YES. [2022-12-12 12:00:18,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9716 conditions, 2931 events. 1107/2931 cut-off events. For 1590/3583 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 28770 event pairs, 0 based on Foata normal form. 241/3005 useless extension candidates. Maximal degree in co-relation 9672. Up to 641 conditions per place. [2022-12-12 12:00:18,131 INFO L137 encePairwiseOnDemand]: 73/83 looper letters, 0 selfloop transitions, 0 changer transitions 253/253 dead transitions. [2022-12-12 12:00:18,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 253 transitions, 2034 flow [2022-12-12 12:00:18,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 12:00:18,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-12 12:00:18,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1118 transitions. [2022-12-12 12:00:18,133 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8418674698795181 [2022-12-12 12:00:18,134 INFO L295 CegarLoopForPetriNet]: 77 programPoint places, 59 predicate places. [2022-12-12 12:00:18,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 253 transitions, 2034 flow [2022-12-12 12:00:18,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 253 transitions, 1829 flow, removed 59 selfloop flow, removed 11 redundant places. [2022-12-12 12:00:18,140 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 253 transitions, 1829 flow [2022-12-12 12:00:18,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.5) internal successors, (540), 8 states have internal predecessors, (540), 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) [2022-12-12 12:00:18,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 12:00:18,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 12:00:18,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 12:00:18,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 12:00:18,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 12:00:18,143 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-12 12:00:18,145 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 12:00:18,145 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 12:00:18,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 12:00:18 BasicIcfg [2022-12-12 12:00:18,149 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 12:00:18,149 INFO L158 Benchmark]: Toolchain (without parser) took 6074.12ms. Allocated memory was 165.7MB in the beginning and 323.0MB in the end (delta: 157.3MB). Free memory was 140.2MB in the beginning and 202.4MB in the end (delta: -62.2MB). Peak memory consumption was 96.2MB. Max. memory is 8.0GB. [2022-12-12 12:00:18,149 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 165.7MB. Free memory is still 141.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 12:00:18,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 736.88ms. Allocated memory is still 165.7MB. Free memory was 139.7MB in the beginning and 116.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-12 12:00:18,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.11ms. Allocated memory is still 165.7MB. Free memory was 116.6MB in the beginning and 114.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 12:00:18,150 INFO L158 Benchmark]: Boogie Preprocessor took 17.41ms. Allocated memory is still 165.7MB. Free memory was 114.6MB in the beginning and 113.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 12:00:18,150 INFO L158 Benchmark]: RCFGBuilder took 367.68ms. Allocated memory is still 165.7MB. Free memory was 113.0MB in the beginning and 99.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-12 12:00:18,150 INFO L158 Benchmark]: TraceAbstraction took 4914.15ms. Allocated memory was 165.7MB in the beginning and 323.0MB in the end (delta: 157.3MB). Free memory was 97.8MB in the beginning and 202.4MB in the end (delta: -104.6MB). Peak memory consumption was 53.2MB. Max. memory is 8.0GB. [2022-12-12 12:00:18,151 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 165.7MB. Free memory is still 141.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 736.88ms. Allocated memory is still 165.7MB. Free memory was 139.7MB in the beginning and 116.6MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.11ms. Allocated memory is still 165.7MB. Free memory was 116.6MB in the beginning and 114.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.41ms. Allocated memory is still 165.7MB. Free memory was 114.6MB in the beginning and 113.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 367.68ms. Allocated memory is still 165.7MB. Free memory was 113.0MB in the beginning and 99.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4914.15ms. Allocated memory was 165.7MB in the beginning and 323.0MB in the end (delta: 157.3MB). Free memory was 97.8MB in the beginning and 202.4MB in the end (delta: -104.6MB). Peak memory consumption was 53.2MB. 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, 105 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 505 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 505 mSDsluCounter, 487 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 385 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 544 IncrementalHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 102 mSDtfsCounter, 544 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7258occurred in iteration=4, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 651 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 378 NumberOfCodeBlocks, 378 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 371 ConstructedInterpolants, 0 QuantifiedInterpolants, 1555 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! [2022-12-12 12:00:18,165 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...