/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/test-easy6.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 22:17:25,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 22:17:25,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 22:17:25,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 22:17:25,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 22:17:25,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 22:17:25,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 22:17:25,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 22:17:25,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 22:17:25,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 22:17:25,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 22:17:25,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 22:17:25,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 22:17:25,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 22:17:25,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 22:17:25,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 22:17:25,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 22:17:25,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 22:17:25,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 22:17:25,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 22:17:25,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 22:17:25,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 22:17:25,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 22:17:25,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 22:17:25,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 22:17:25,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 22:17:25,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 22:17:25,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 22:17:25,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 22:17:25,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 22:17:25,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 22:17:25,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 22:17:25,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 22:17:25,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 22:17:25,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 22:17:25,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 22:17:25,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 22:17:25,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 22:17:25,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 22:17:25,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 22:17:25,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 22:17:25,152 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-05 22:17:25,185 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 22:17:25,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 22:17:25,186 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 22:17:25,186 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 22:17:25,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 22:17:25,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 22:17:25,187 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 22:17:25,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 22:17:25,187 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 22:17:25,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 22:17:25,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 22:17:25,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 22:17:25,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 22:17:25,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 22:17:25,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 22:17:25,189 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 22:17:25,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 22:17:25,189 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 22:17:25,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 22:17:25,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 22:17:25,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 22:17:25,189 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 22:17:25,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 22:17:25,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 22:17:25,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 22:17:25,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 22:17:25,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 22:17:25,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 22:17:25,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 22:17:25,190 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 22:17:25,190 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 22:17:25,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 22:17:25,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 22:17:25,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 22:17:25,486 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 22:17:25,487 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 22:17:25,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy6.wvr.c [2022-12-05 22:17:26,384 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 22:17:26,599 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 22:17:26,599 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy6.wvr.c [2022-12-05 22:17:26,604 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01208bf70/52ed1da0c3a144d9b1d5f26f93a4eb9a/FLAG1247aa0bc [2022-12-05 22:17:26,614 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01208bf70/52ed1da0c3a144d9b1d5f26f93a4eb9a [2022-12-05 22:17:26,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 22:17:26,617 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 22:17:26,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 22:17:26,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 22:17:26,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 22:17:26,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:17:26" (1/1) ... [2022-12-05 22:17:26,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f54daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:26, skipping insertion in model container [2022-12-05 22:17:26,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:17:26" (1/1) ... [2022-12-05 22:17:26,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 22:17:26,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 22:17:26,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,752 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,752 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,753 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,753 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,754 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,758 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,758 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,758 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,758 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,759 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,759 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,759 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,764 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,767 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy6.wvr.c[3046,3059] [2022-12-05 22:17:26,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 22:17:26,784 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 22:17:26,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 22:17:26,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 22:17:26,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy6.wvr.c[3046,3059] [2022-12-05 22:17:26,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 22:17:26,812 INFO L208 MainTranslator]: Completed translation [2022-12-05 22:17:26,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:26 WrapperNode [2022-12-05 22:17:26,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 22:17:26,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 22:17:26,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 22:17:26,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 22:17:26,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:26" (1/1) ... [2022-12-05 22:17:26,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:26" (1/1) ... [2022-12-05 22:17:26,837 INFO L138 Inliner]: procedures = 21, calls = 59, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 123 [2022-12-05 22:17:26,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 22:17:26,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 22:17:26,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 22:17:26,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 22:17:26,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:26" (1/1) ... [2022-12-05 22:17:26,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:26" (1/1) ... [2022-12-05 22:17:26,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:26" (1/1) ... [2022-12-05 22:17:26,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:26" (1/1) ... [2022-12-05 22:17:26,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:26" (1/1) ... [2022-12-05 22:17:26,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:26" (1/1) ... [2022-12-05 22:17:26,850 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:26" (1/1) ... [2022-12-05 22:17:26,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:26" (1/1) ... [2022-12-05 22:17:26,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 22:17:26,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 22:17:26,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 22:17:26,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 22:17:26,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:26" (1/1) ... [2022-12-05 22:17:26,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 22:17:26,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:17:26,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 22:17:26,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 22:17:26,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 22:17:26,901 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-05 22:17:26,901 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-05 22:17:26,901 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-05 22:17:26,902 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-05 22:17:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 22:17:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 22:17:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 22:17:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 22:17:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 22:17:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 22:17:26,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 22:17:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 22:17:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 22:17:26,903 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 22:17:26,974 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 22:17:26,976 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 22:17:27,206 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 22:17:27,276 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 22:17:27,277 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 22:17:27,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:17:27 BoogieIcfgContainer [2022-12-05 22:17:27,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 22:17:27,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 22:17:27,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 22:17:27,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 22:17:27,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 10:17:26" (1/3) ... [2022-12-05 22:17:27,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2696f90a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 10:17:27, skipping insertion in model container [2022-12-05 22:17:27,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:17:26" (2/3) ... [2022-12-05 22:17:27,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2696f90a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 10:17:27, skipping insertion in model container [2022-12-05 22:17:27,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:17:27" (3/3) ... [2022-12-05 22:17:27,283 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy6.wvr.c [2022-12-05 22:17:27,295 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 22:17:27,296 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 22:17:27,296 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 22:17:27,366 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 22:17:27,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 78 transitions, 172 flow [2022-12-05 22:17:27,450 INFO L130 PetriNetUnfolder]: 1/76 cut-off events. [2022-12-05 22:17:27,450 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 22:17:27,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 76 events. 1/76 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-12-05 22:17:27,453 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 78 transitions, 172 flow [2022-12-05 22:17:27,458 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 68 transitions, 148 flow [2022-12-05 22:17:27,460 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:17:27,485 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 68 transitions, 148 flow [2022-12-05 22:17:27,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 68 transitions, 148 flow [2022-12-05 22:17:27,514 INFO L130 PetriNetUnfolder]: 1/68 cut-off events. [2022-12-05 22:17:27,514 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 22:17:27,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 68 events. 1/68 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2022-12-05 22:17:27,516 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 68 transitions, 148 flow [2022-12-05 22:17:27,516 INFO L188 LiptonReduction]: Number of co-enabled transitions 572 [2022-12-05 22:17:29,112 INFO L203 LiptonReduction]: Total number of compositions: 45 [2022-12-05 22:17:29,122 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 22:17:29,125 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;@45998847, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 22:17:29,126 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-05 22:17:29,129 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-12-05 22:17:29,129 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 22:17:29,129 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:17:29,129 INFO L213 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] [2022-12-05 22:17:29,130 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 22:17:29,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:17:29,133 INFO L85 PathProgramCache]: Analyzing trace with hash -900198371, now seen corresponding path program 1 times [2022-12-05 22:17:29,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:17:29,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75821558] [2022-12-05 22:17:29,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:17:29,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:17:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:17:29,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:17:29,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:17:29,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75821558] [2022-12-05 22:17:29,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75821558] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:17:29,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:17:29,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 22:17:29,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002979432] [2022-12-05 22:17:29,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:17:29,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 22:17:29,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:17:29,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 22:17:29,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 22:17:29,495 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 23 [2022-12-05 22:17:29,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 58 flow. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:17:29,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:17:29,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 23 [2022-12-05 22:17:29,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:17:29,707 INFO L130 PetriNetUnfolder]: 217/431 cut-off events. [2022-12-05 22:17:29,708 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-12-05 22:17:29,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 903 conditions, 431 events. 217/431 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1557 event pairs, 95 based on Foata normal form. 1/432 useless extension candidates. Maximal degree in co-relation 756. Up to 180 conditions per place. [2022-12-05 22:17:29,711 INFO L137 encePairwiseOnDemand]: 17/23 looper letters, 42 selfloop transitions, 6 changer transitions 14/62 dead transitions. [2022-12-05 22:17:29,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 62 transitions, 281 flow [2022-12-05 22:17:29,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 22:17:29,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 22:17:29,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 63 transitions. [2022-12-05 22:17:29,719 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.391304347826087 [2022-12-05 22:17:29,720 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 58 flow. Second operand 7 states and 63 transitions. [2022-12-05 22:17:29,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 62 transitions, 281 flow [2022-12-05 22:17:29,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 62 transitions, 259 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 22:17:29,724 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 85 flow [2022-12-05 22:17:29,725 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=85, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2022-12-05 22:17:29,727 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2022-12-05 22:17:29,728 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 85 flow [2022-12-05 22:17:29,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:17:29,728 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:17:29,728 INFO L213 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] [2022-12-05 22:17:29,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 22:17:29,728 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 22:17:29,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:17:29,729 INFO L85 PathProgramCache]: Analyzing trace with hash -180196209, now seen corresponding path program 2 times [2022-12-05 22:17:29,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:17:29,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743199562] [2022-12-05 22:17:29,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:17:29,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:17:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:17:29,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:17:29,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:17:29,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743199562] [2022-12-05 22:17:29,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743199562] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:17:29,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:17:29,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 22:17:29,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682180320] [2022-12-05 22:17:29,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:17:29,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 22:17:29,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:17:29,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 22:17:29,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-05 22:17:29,861 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2022-12-05 22:17:29,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 85 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:17:29,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:17:29,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2022-12-05 22:17:29,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:17:30,032 INFO L130 PetriNetUnfolder]: 204/499 cut-off events. [2022-12-05 22:17:30,032 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2022-12-05 22:17:30,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1034 conditions, 499 events. 204/499 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2558 event pairs, 24 based on Foata normal form. 6/495 useless extension candidates. Maximal degree in co-relation 1010. Up to 86 conditions per place. [2022-12-05 22:17:30,035 INFO L137 encePairwiseOnDemand]: 15/23 looper letters, 47 selfloop transitions, 15 changer transitions 3/73 dead transitions. [2022-12-05 22:17:30,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 73 transitions, 314 flow [2022-12-05 22:17:30,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 22:17:30,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 22:17:30,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 102 transitions. [2022-12-05 22:17:30,037 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4927536231884058 [2022-12-05 22:17:30,037 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 85 flow. Second operand 9 states and 102 transitions. [2022-12-05 22:17:30,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 73 transitions, 314 flow [2022-12-05 22:17:30,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 73 transitions, 310 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-12-05 22:17:30,039 INFO L231 Difference]: Finished difference. Result has 43 places, 40 transitions, 164 flow [2022-12-05 22:17:30,040 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=164, PETRI_PLACES=43, PETRI_TRANSITIONS=40} [2022-12-05 22:17:30,040 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 13 predicate places. [2022-12-05 22:17:30,040 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 40 transitions, 164 flow [2022-12-05 22:17:30,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:17:30,040 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:17:30,041 INFO L213 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] [2022-12-05 22:17:30,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 22:17:30,041 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 22:17:30,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:17:30,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1790513661, now seen corresponding path program 3 times [2022-12-05 22:17:30,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:17:30,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806415461] [2022-12-05 22:17:30,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:17:30,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:17:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:17:30,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:17:30,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:17:30,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806415461] [2022-12-05 22:17:30,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806415461] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:17:30,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:17:30,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 22:17:30,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184508276] [2022-12-05 22:17:30,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:17:30,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 22:17:30,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:17:30,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 22:17:30,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 22:17:30,155 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 23 [2022-12-05 22:17:30,155 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 40 transitions, 164 flow. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:17:30,155 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:17:30,155 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 23 [2022-12-05 22:17:30,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:17:30,317 INFO L130 PetriNetUnfolder]: 360/717 cut-off events. [2022-12-05 22:17:30,317 INFO L131 PetriNetUnfolder]: For 322/322 co-relation queries the response was YES. [2022-12-05 22:17:30,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1942 conditions, 717 events. 360/717 cut-off events. For 322/322 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3198 event pairs, 151 based on Foata normal form. 2/719 useless extension candidates. Maximal degree in co-relation 793. Up to 308 conditions per place. [2022-12-05 22:17:30,320 INFO L137 encePairwiseOnDemand]: 18/23 looper letters, 42 selfloop transitions, 5 changer transitions 38/85 dead transitions. [2022-12-05 22:17:30,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 85 transitions, 500 flow [2022-12-05 22:17:30,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 22:17:30,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 22:17:30,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 56 transitions. [2022-12-05 22:17:30,322 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.34782608695652173 [2022-12-05 22:17:30,322 INFO L175 Difference]: Start difference. First operand has 43 places, 40 transitions, 164 flow. Second operand 7 states and 56 transitions. [2022-12-05 22:17:30,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 85 transitions, 500 flow [2022-12-05 22:17:30,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 85 transitions, 500 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 22:17:30,326 INFO L231 Difference]: Finished difference. Result has 50 places, 34 transitions, 147 flow [2022-12-05 22:17:30,326 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=147, PETRI_PLACES=50, PETRI_TRANSITIONS=34} [2022-12-05 22:17:30,326 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 20 predicate places. [2022-12-05 22:17:30,327 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 34 transitions, 147 flow [2022-12-05 22:17:30,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:17:30,327 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:17:30,327 INFO L213 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] [2022-12-05 22:17:30,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 22:17:30,327 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 22:17:30,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:17:30,328 INFO L85 PathProgramCache]: Analyzing trace with hash 50055483, now seen corresponding path program 4 times [2022-12-05 22:17:30,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:17:30,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442816582] [2022-12-05 22:17:30,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:17:30,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:17:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:17:30,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:17:30,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:17:30,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442816582] [2022-12-05 22:17:30,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442816582] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:17:30,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:17:30,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 22:17:30,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142223045] [2022-12-05 22:17:30,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:17:30,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 22:17:30,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:17:30,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 22:17:30,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 22:17:30,454 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2022-12-05 22:17:30,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 34 transitions, 147 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:17:30,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:17:30,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2022-12-05 22:17:30,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:17:30,604 INFO L130 PetriNetUnfolder]: 173/442 cut-off events. [2022-12-05 22:17:30,604 INFO L131 PetriNetUnfolder]: For 285/323 co-relation queries the response was YES. [2022-12-05 22:17:30,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1159 conditions, 442 events. 173/442 cut-off events. For 285/323 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2207 event pairs, 25 based on Foata normal form. 22/454 useless extension candidates. Maximal degree in co-relation 1130. Up to 130 conditions per place. [2022-12-05 22:17:30,606 INFO L137 encePairwiseOnDemand]: 16/23 looper letters, 36 selfloop transitions, 7 changer transitions 13/62 dead transitions. [2022-12-05 22:17:30,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 62 transitions, 337 flow [2022-12-05 22:17:30,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 22:17:30,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 22:17:30,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 79 transitions. [2022-12-05 22:17:30,609 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.572463768115942 [2022-12-05 22:17:30,609 INFO L175 Difference]: Start difference. First operand has 50 places, 34 transitions, 147 flow. Second operand 6 states and 79 transitions. [2022-12-05 22:17:30,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 62 transitions, 337 flow [2022-12-05 22:17:30,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 62 transitions, 314 flow, removed 6 selfloop flow, removed 7 redundant places. [2022-12-05 22:17:30,613 INFO L231 Difference]: Finished difference. Result has 45 places, 32 transitions, 138 flow [2022-12-05 22:17:30,613 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=138, PETRI_PLACES=45, PETRI_TRANSITIONS=32} [2022-12-05 22:17:30,614 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 15 predicate places. [2022-12-05 22:17:30,615 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 32 transitions, 138 flow [2022-12-05 22:17:30,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:17:30,615 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:17:30,615 INFO L213 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] [2022-12-05 22:17:30,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 22:17:30,615 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 22:17:30,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:17:30,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1563485067, now seen corresponding path program 5 times [2022-12-05 22:17:30,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:17:30,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153752925] [2022-12-05 22:17:30,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:17:30,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:17:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:17:30,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:17:30,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:17:30,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153752925] [2022-12-05 22:17:30,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153752925] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:17:30,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:17:30,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 22:17:30,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936313505] [2022-12-05 22:17:30,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:17:30,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 22:17:30,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:17:30,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 22:17:30,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 22:17:30,665 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2022-12-05 22:17:30,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 32 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:17:30,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:17:30,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2022-12-05 22:17:30,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:17:30,709 INFO L130 PetriNetUnfolder]: 119/336 cut-off events. [2022-12-05 22:17:30,709 INFO L131 PetriNetUnfolder]: For 242/262 co-relation queries the response was YES. [2022-12-05 22:17:30,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 336 events. 119/336 cut-off events. For 242/262 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1622 event pairs, 101 based on Foata normal form. 8/330 useless extension candidates. Maximal degree in co-relation 379. Up to 253 conditions per place. [2022-12-05 22:17:30,711 INFO L137 encePairwiseOnDemand]: 20/23 looper letters, 28 selfloop transitions, 4 changer transitions 1/39 dead transitions. [2022-12-05 22:17:30,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 39 transitions, 230 flow [2022-12-05 22:17:30,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 22:17:30,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 22:17:30,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2022-12-05 22:17:30,712 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5652173913043478 [2022-12-05 22:17:30,712 INFO L175 Difference]: Start difference. First operand has 45 places, 32 transitions, 138 flow. Second operand 3 states and 39 transitions. [2022-12-05 22:17:30,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 39 transitions, 230 flow [2022-12-05 22:17:30,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 39 transitions, 199 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-12-05 22:17:30,714 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 128 flow [2022-12-05 22:17:30,714 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2022-12-05 22:17:30,714 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 10 predicate places. [2022-12-05 22:17:30,714 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 128 flow [2022-12-05 22:17:30,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:17:30,715 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:17:30,715 INFO L213 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] [2022-12-05 22:17:30,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 22:17:30,715 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 22:17:30,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:17:30,715 INFO L85 PathProgramCache]: Analyzing trace with hash 739853503, now seen corresponding path program 6 times [2022-12-05 22:17:30,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:17:30,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414107624] [2022-12-05 22:17:30,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:17:30,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:17:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:17:30,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:17:30,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:17:30,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414107624] [2022-12-05 22:17:30,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414107624] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:17:30,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:17:30,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 22:17:30,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117213951] [2022-12-05 22:17:30,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:17:30,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 22:17:30,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:17:30,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 22:17:30,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 22:17:30,809 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2022-12-05 22:17:30,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 128 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:17:30,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:17:30,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2022-12-05 22:17:30,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:17:30,889 INFO L130 PetriNetUnfolder]: 91/240 cut-off events. [2022-12-05 22:17:30,889 INFO L131 PetriNetUnfolder]: For 149/169 co-relation queries the response was YES. [2022-12-05 22:17:30,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 240 events. 91/240 cut-off events. For 149/169 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 952 event pairs, 23 based on Foata normal form. 10/244 useless extension candidates. Maximal degree in co-relation 307. Up to 128 conditions per place. [2022-12-05 22:17:30,890 INFO L137 encePairwiseOnDemand]: 16/23 looper letters, 21 selfloop transitions, 3 changer transitions 12/42 dead transitions. [2022-12-05 22:17:30,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 42 transitions, 227 flow [2022-12-05 22:17:30,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 22:17:30,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 22:17:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 60 transitions. [2022-12-05 22:17:30,894 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.43478260869565216 [2022-12-05 22:17:30,894 INFO L175 Difference]: Start difference. First operand has 40 places, 32 transitions, 128 flow. Second operand 6 states and 60 transitions. [2022-12-05 22:17:30,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 42 transitions, 227 flow [2022-12-05 22:17:30,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 42 transitions, 217 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 22:17:30,895 INFO L231 Difference]: Finished difference. Result has 43 places, 26 transitions, 101 flow [2022-12-05 22:17:30,895 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=101, PETRI_PLACES=43, PETRI_TRANSITIONS=26} [2022-12-05 22:17:30,896 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 13 predicate places. [2022-12-05 22:17:30,896 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 26 transitions, 101 flow [2022-12-05 22:17:30,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:17:30,896 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:17:30,896 INFO L213 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] [2022-12-05 22:17:30,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 22:17:30,897 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 22:17:30,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:17:30,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1333001209, now seen corresponding path program 7 times [2022-12-05 22:17:30,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:17:30,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10071839] [2022-12-05 22:17:30,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:17:30,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:17:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:17:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:17:30,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:17:30,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10071839] [2022-12-05 22:17:30,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10071839] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:17:30,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:17:30,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 22:17:30,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505860715] [2022-12-05 22:17:30,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:17:30,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 22:17:30,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:17:30,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 22:17:30,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 22:17:30,975 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2022-12-05 22:17:30,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 26 transitions, 101 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:17:30,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:17:30,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2022-12-05 22:17:30,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:17:31,032 INFO L130 PetriNetUnfolder]: 29/72 cut-off events. [2022-12-05 22:17:31,032 INFO L131 PetriNetUnfolder]: For 38/46 co-relation queries the response was YES. [2022-12-05 22:17:31,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 72 events. 29/72 cut-off events. For 38/46 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 174 event pairs, 2 based on Foata normal form. 8/80 useless extension candidates. Maximal degree in co-relation 164. Up to 26 conditions per place. [2022-12-05 22:17:31,033 INFO L137 encePairwiseOnDemand]: 17/23 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2022-12-05 22:17:31,033 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 25 transitions, 134 flow [2022-12-05 22:17:31,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 22:17:31,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 22:17:31,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 52 transitions. [2022-12-05 22:17:31,034 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.32298136645962733 [2022-12-05 22:17:31,034 INFO L175 Difference]: Start difference. First operand has 43 places, 26 transitions, 101 flow. Second operand 7 states and 52 transitions. [2022-12-05 22:17:31,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 25 transitions, 134 flow [2022-12-05 22:17:31,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 113 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-12-05 22:17:31,034 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2022-12-05 22:17:31,035 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2022-12-05 22:17:31,035 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, -1 predicate places. [2022-12-05 22:17:31,035 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2022-12-05 22:17:31,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 22:17:31,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-05 22:17:31,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-05 22:17:31,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-05 22:17:31,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 22:17:31,038 INFO L458 BasicCegarLoop]: Path program histogram: [7] [2022-12-05 22:17:31,040 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 22:17:31,040 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 22:17:31,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 10:17:31 BasicIcfg [2022-12-05 22:17:31,042 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 22:17:31,043 INFO L158 Benchmark]: Toolchain (without parser) took 4425.87ms. Allocated memory was 182.5MB in the beginning and 227.5MB in the end (delta: 45.1MB). Free memory was 159.9MB in the beginning and 75.3MB in the end (delta: 84.6MB). Peak memory consumption was 130.2MB. Max. memory is 8.0GB. [2022-12-05 22:17:31,043 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 182.5MB. Free memory is still 160.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 22:17:31,043 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.09ms. Allocated memory is still 182.5MB. Free memory was 159.4MB in the beginning and 144.2MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-05 22:17:31,044 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.24ms. Allocated memory is still 182.5MB. Free memory was 144.2MB in the beginning and 142.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 22:17:31,044 INFO L158 Benchmark]: Boogie Preprocessor took 14.30ms. Allocated memory is still 182.5MB. Free memory was 142.6MB in the beginning and 141.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 22:17:31,044 INFO L158 Benchmark]: RCFGBuilder took 425.73ms. Allocated memory is still 182.5MB. Free memory was 141.0MB in the beginning and 125.8MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-12-05 22:17:31,044 INFO L158 Benchmark]: TraceAbstraction took 3762.77ms. Allocated memory was 182.5MB in the beginning and 227.5MB in the end (delta: 45.1MB). Free memory was 125.3MB in the beginning and 75.3MB in the end (delta: 50.0MB). Peak memory consumption was 95.6MB. Max. memory is 8.0GB. [2022-12-05 22:17:31,045 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 182.5MB. Free memory is still 160.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 195.09ms. Allocated memory is still 182.5MB. Free memory was 159.4MB in the beginning and 144.2MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.24ms. Allocated memory is still 182.5MB. Free memory was 144.2MB in the beginning and 142.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.30ms. Allocated memory is still 182.5MB. Free memory was 142.6MB in the beginning and 141.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 425.73ms. Allocated memory is still 182.5MB. Free memory was 141.0MB in the beginning and 125.8MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3762.77ms. Allocated memory was 182.5MB in the beginning and 227.5MB in the end (delta: 45.1MB). Free memory was 125.3MB in the beginning and 75.3MB in the end (delta: 50.0MB). Peak memory consumption was 95.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 74 PlacesBefore, 30 PlacesAfterwards, 68 TransitionsBefore, 23 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 29 TrivialYvCompositions, 15 ConcurrentYvCompositions, 1 ChoiceCompositions, 45 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 428, independent: 376, independent conditional: 376, independent unconditional: 0, dependent: 52, dependent conditional: 52, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 428, independent: 376, independent conditional: 0, independent unconditional: 376, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 428, independent: 376, independent conditional: 0, independent unconditional: 376, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 428, independent: 376, independent conditional: 0, independent unconditional: 376, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 330, independent: 301, independent conditional: 0, independent unconditional: 301, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 330, independent: 295, independent conditional: 0, independent unconditional: 295, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 70, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 428, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 330, unknown conditional: 0, unknown unconditional: 330] , Statistics on independence cache: Total cache size (in pairs): 409, Positive cache size: 380, Positive conditional cache size: 0, Positive unconditional cache size: 380, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 116]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 104 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 330 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 330 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 909 IncrementalHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 4 mSDtfsCounter, 909 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=2, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 608 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! [2022-12-05 22:17:31,069 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...