/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:40:38,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:40:38,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:40:38,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:40:38,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:40:38,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:40:38,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:40:38,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:40:38,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:40:38,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:40:38,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:40:38,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:40:38,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:40:38,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:40:38,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:40:38,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:40:38,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:40:38,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:40:38,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:40:38,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:40:38,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:40:38,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:40:38,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:40:38,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:40:38,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 18:40:38,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 18:40:38,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 18:40:38,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 18:40:38,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 18:40:38,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 18:40:38,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 18:40:38,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 18:40:38,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 18:40:38,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 18:40:38,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 18:40:38,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 18:40:38,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 18:40:38,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 18:40:38,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:40:38,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:40:38,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:40:38,774 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-05 18:40:38,806 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:40:38,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:40:38,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:40:38,808 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:40:38,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:40:38,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:40:38,810 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:40:38,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:40:38,810 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:40:38,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:40:38,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:40:38,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:40:38,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:40:38,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:40:38,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:40:38,812 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:40:38,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:40:38,812 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:40:38,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:40:38,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:40:38,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:40:38,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:40:38,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:40:38,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:40:38,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:40:38,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:40:38,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:40:38,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:40:38,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:40:38,814 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:40:38,814 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:40:38,814 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:40:39,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:40:39,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:40:39,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:40:39,161 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:40:39,162 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:40:39,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 18:40:40,421 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:40:40,712 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:40:40,713 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 18:40:40,725 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7cb57180/ccae6945718b450689bee65c77da3fe9/FLAGbd536fac7 [2022-12-05 18:40:40,739 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7cb57180/ccae6945718b450689bee65c77da3fe9 [2022-12-05 18:40:40,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:40:40,748 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:40:40,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:40:40,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:40:40,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:40:40,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:40:40" (1/1) ... [2022-12-05 18:40:40,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fcd293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:40, skipping insertion in model container [2022-12-05 18:40:40,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:40:40" (1/1) ... [2022-12-05 18:40:40,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:40:40,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:40:40,971 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-05 18:40:41,134 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,137 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,137 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,137 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,140 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,140 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,141 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:40:41,171 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:40:41,183 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-05 18:40:41,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,211 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,211 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,213 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,213 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,221 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:41,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:41,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:40:41,273 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:40:41,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:41 WrapperNode [2022-12-05 18:40:41,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:40:41,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:40:41,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:40:41,275 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:40:41,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:41" (1/1) ... [2022-12-05 18:40:41,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:41" (1/1) ... [2022-12-05 18:40:41,335 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2022-12-05 18:40:41,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:40:41,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:40:41,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:40:41,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:40:41,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:41" (1/1) ... [2022-12-05 18:40:41,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:41" (1/1) ... [2022-12-05 18:40:41,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:41" (1/1) ... [2022-12-05 18:40:41,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:41" (1/1) ... [2022-12-05 18:40:41,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:41" (1/1) ... [2022-12-05 18:40:41,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:41" (1/1) ... [2022-12-05 18:40:41,370 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:41" (1/1) ... [2022-12-05 18:40:41,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:41" (1/1) ... [2022-12-05 18:40:41,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:40:41,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:40:41,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:40:41,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:40:41,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:41" (1/1) ... [2022-12-05 18:40:41,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:40:41,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:40:41,417 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 18:40:41,440 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 18:40:41,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:40:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 18:40:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:40:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:40:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:40:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-05 18:40:41,469 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-05 18:40:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-05 18:40:41,469 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-05 18:40:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-05 18:40:41,470 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-05 18:40:41,470 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-05 18:40:41,470 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-05 18:40:41,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:40:41,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 18:40:41,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:40:41,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:40:41,472 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 18:40:41,650 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:40:41,652 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:40:41,833 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:40:41,839 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:40:41,839 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 18:40:41,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:40:41 BoogieIcfgContainer [2022-12-05 18:40:41,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:40:41,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:40:41,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:40:41,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:40:41,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:40:40" (1/3) ... [2022-12-05 18:40:41,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c64ca4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:40:41, skipping insertion in model container [2022-12-05 18:40:41,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:41" (2/3) ... [2022-12-05 18:40:41,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c64ca4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:40:41, skipping insertion in model container [2022-12-05 18:40:41,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:40:41" (3/3) ... [2022-12-05 18:40:41,849 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 18:40:41,867 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:40:41,867 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 18:40:41,867 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:40:41,923 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 18:40:41,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 99 transitions, 218 flow [2022-12-05 18:40:42,017 INFO L130 PetriNetUnfolder]: 2/95 cut-off events. [2022-12-05 18:40:42,017 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:40:42,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 95 events. 2/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-12-05 18:40:42,022 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 99 transitions, 218 flow [2022-12-05 18:40:42,029 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 81 transitions, 174 flow [2022-12-05 18:40:42,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:40:42,042 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;@75044244, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:40:42,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-05 18:40:42,067 INFO L130 PetriNetUnfolder]: 1/80 cut-off events. [2022-12-05 18:40:42,067 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:40:42,068 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:42,068 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:40:42,069 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:40:42,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:42,073 INFO L85 PathProgramCache]: Analyzing trace with hash -131963081, now seen corresponding path program 1 times [2022-12-05 18:40:42,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:42,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781601468] [2022-12-05 18:40:42,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:42,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:42,953 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 18:40:42,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:42,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781601468] [2022-12-05 18:40:42,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781601468] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:42,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:42,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:40:42,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336079999] [2022-12-05 18:40:42,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:42,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:40:42,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:42,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:40:43,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:40:43,006 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2022-12-05 18:40:43,011 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 174 flow. Second operand has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 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 18:40:43,012 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:43,012 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2022-12-05 18:40:43,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:43,462 INFO L130 PetriNetUnfolder]: 293/799 cut-off events. [2022-12-05 18:40:43,462 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-05 18:40:43,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1356 conditions, 799 events. 293/799 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4641 event pairs, 50 based on Foata normal form. 30/797 useless extension candidates. Maximal degree in co-relation 1320. Up to 190 conditions per place. [2022-12-05 18:40:43,476 INFO L137 encePairwiseOnDemand]: 86/99 looper letters, 23 selfloop transitions, 8 changer transitions 44/136 dead transitions. [2022-12-05 18:40:43,476 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 136 transitions, 440 flow [2022-12-05 18:40:43,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:40:43,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:40:43,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1069 transitions. [2022-12-05 18:40:43,492 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8306138306138307 [2022-12-05 18:40:43,493 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 174 flow. Second operand 13 states and 1069 transitions. [2022-12-05 18:40:43,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 136 transitions, 440 flow [2022-12-05 18:40:43,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 136 transitions, 434 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 18:40:43,502 INFO L231 Difference]: Finished difference. Result has 112 places, 83 transitions, 244 flow [2022-12-05 18:40:43,504 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=244, PETRI_PLACES=112, PETRI_TRANSITIONS=83} [2022-12-05 18:40:43,507 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 19 predicate places. [2022-12-05 18:40:43,508 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 83 transitions, 244 flow [2022-12-05 18:40:43,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 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 18:40:43,508 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:43,508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:40:43,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:40:43,509 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:40:43,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:43,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1606034358, now seen corresponding path program 1 times [2022-12-05 18:40:43,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:43,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313924124] [2022-12-05 18:40:43,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:43,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:43,842 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 18:40:43,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:43,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313924124] [2022-12-05 18:40:43,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313924124] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:43,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:43,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:40:43,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706473061] [2022-12-05 18:40:43,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:43,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:40:43,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:43,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:40:43,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:40:43,846 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2022-12-05 18:40:43,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 83 transitions, 244 flow. Second operand has 7 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 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 18:40:43,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:43,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2022-12-05 18:40:43,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:44,130 INFO L130 PetriNetUnfolder]: 195/678 cut-off events. [2022-12-05 18:40:44,130 INFO L131 PetriNetUnfolder]: For 1202/1350 co-relation queries the response was YES. [2022-12-05 18:40:44,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1981 conditions, 678 events. 195/678 cut-off events. For 1202/1350 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4003 event pairs, 56 based on Foata normal form. 18/674 useless extension candidates. Maximal degree in co-relation 1933. Up to 186 conditions per place. [2022-12-05 18:40:44,138 INFO L137 encePairwiseOnDemand]: 90/99 looper letters, 28 selfloop transitions, 6 changer transitions 40/135 dead transitions. [2022-12-05 18:40:44,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 135 transitions, 729 flow [2022-12-05 18:40:44,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:40:44,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:40:44,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1057 transitions. [2022-12-05 18:40:44,141 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8212898212898213 [2022-12-05 18:40:44,141 INFO L175 Difference]: Start difference. First operand has 112 places, 83 transitions, 244 flow. Second operand 13 states and 1057 transitions. [2022-12-05 18:40:44,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 135 transitions, 729 flow [2022-12-05 18:40:44,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 135 transitions, 649 flow, removed 24 selfloop flow, removed 8 redundant places. [2022-12-05 18:40:44,155 INFO L231 Difference]: Finished difference. Result has 119 places, 85 transitions, 290 flow [2022-12-05 18:40:44,155 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=290, PETRI_PLACES=119, PETRI_TRANSITIONS=85} [2022-12-05 18:40:44,156 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 26 predicate places. [2022-12-05 18:40:44,156 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 85 transitions, 290 flow [2022-12-05 18:40:44,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 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 18:40:44,157 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:44,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:40:44,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:40:44,157 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:40:44,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:44,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1102978505, now seen corresponding path program 1 times [2022-12-05 18:40:44,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:44,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554255271] [2022-12-05 18:40:44,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:44,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:44,358 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 18:40:44,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:44,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554255271] [2022-12-05 18:40:44,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554255271] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:44,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:44,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:40:44,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946189611] [2022-12-05 18:40:44,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:44,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:40:44,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:44,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:40:44,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:40:44,361 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2022-12-05 18:40:44,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 85 transitions, 290 flow. Second operand has 8 states, 8 states have (on average 78.0) internal successors, (624), 8 states have internal predecessors, (624), 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 18:40:44,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:44,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2022-12-05 18:40:44,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:44,578 INFO L130 PetriNetUnfolder]: 123/503 cut-off events. [2022-12-05 18:40:44,578 INFO L131 PetriNetUnfolder]: For 1371/1629 co-relation queries the response was YES. [2022-12-05 18:40:44,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1614 conditions, 503 events. 123/503 cut-off events. For 1371/1629 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2679 event pairs, 41 based on Foata normal form. 13/490 useless extension candidates. Maximal degree in co-relation 1561. Up to 127 conditions per place. [2022-12-05 18:40:44,584 INFO L137 encePairwiseOnDemand]: 89/99 looper letters, 25 selfloop transitions, 8 changer transitions 40/134 dead transitions. [2022-12-05 18:40:44,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 134 transitions, 848 flow [2022-12-05 18:40:44,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-05 18:40:44,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-05 18:40:44,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 899 transitions. [2022-12-05 18:40:44,587 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8255280073461891 [2022-12-05 18:40:44,587 INFO L175 Difference]: Start difference. First operand has 119 places, 85 transitions, 290 flow. Second operand 11 states and 899 transitions. [2022-12-05 18:40:44,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 134 transitions, 848 flow [2022-12-05 18:40:44,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 134 transitions, 784 flow, removed 30 selfloop flow, removed 4 redundant places. [2022-12-05 18:40:44,596 INFO L231 Difference]: Finished difference. Result has 124 places, 86 transitions, 334 flow [2022-12-05 18:40:44,597 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=334, PETRI_PLACES=124, PETRI_TRANSITIONS=86} [2022-12-05 18:40:44,599 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 31 predicate places. [2022-12-05 18:40:44,599 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 86 transitions, 334 flow [2022-12-05 18:40:44,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 78.0) internal successors, (624), 8 states have internal predecessors, (624), 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 18:40:44,600 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:44,601 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:40:44,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:40:44,605 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:40:44,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:44,609 INFO L85 PathProgramCache]: Analyzing trace with hash -776343996, now seen corresponding path program 1 times [2022-12-05 18:40:44,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:44,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805208994] [2022-12-05 18:40:44,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:44,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:44,858 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 18:40:44,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:44,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805208994] [2022-12-05 18:40:44,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805208994] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:44,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:44,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:40:44,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048168374] [2022-12-05 18:40:44,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:44,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:40:44,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:44,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:40:44,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:40:44,865 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 99 [2022-12-05 18:40:44,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 86 transitions, 334 flow. Second operand has 8 states, 8 states have (on average 76.25) internal successors, (610), 8 states have internal predecessors, (610), 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 18:40:44,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:44,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 99 [2022-12-05 18:40:44,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:45,110 INFO L130 PetriNetUnfolder]: 180/595 cut-off events. [2022-12-05 18:40:45,110 INFO L131 PetriNetUnfolder]: For 2476/3088 co-relation queries the response was YES. [2022-12-05 18:40:45,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2158 conditions, 595 events. 180/595 cut-off events. For 2476/3088 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3399 event pairs, 29 based on Foata normal form. 17/596 useless extension candidates. Maximal degree in co-relation 2096. Up to 146 conditions per place. [2022-12-05 18:40:45,115 INFO L137 encePairwiseOnDemand]: 85/99 looper letters, 29 selfloop transitions, 12 changer transitions 50/150 dead transitions. [2022-12-05 18:40:45,115 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 150 transitions, 1175 flow [2022-12-05 18:40:45,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-05 18:40:45,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-05 18:40:45,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 886 transitions. [2022-12-05 18:40:45,118 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8135904499540864 [2022-12-05 18:40:45,118 INFO L175 Difference]: Start difference. First operand has 124 places, 86 transitions, 334 flow. Second operand 11 states and 886 transitions. [2022-12-05 18:40:45,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 150 transitions, 1175 flow [2022-12-05 18:40:45,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 150 transitions, 892 flow, removed 104 selfloop flow, removed 16 redundant places. [2022-12-05 18:40:45,129 INFO L231 Difference]: Finished difference. Result has 120 places, 86 transitions, 309 flow [2022-12-05 18:40:45,129 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=309, PETRI_PLACES=120, PETRI_TRANSITIONS=86} [2022-12-05 18:40:45,130 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 27 predicate places. [2022-12-05 18:40:45,131 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 86 transitions, 309 flow [2022-12-05 18:40:45,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.25) internal successors, (610), 8 states have internal predecessors, (610), 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 18:40:45,131 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:45,131 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:40:45,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 18:40:45,132 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:40:45,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:45,132 INFO L85 PathProgramCache]: Analyzing trace with hash -209057667, now seen corresponding path program 1 times [2022-12-05 18:40:45,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:45,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860384059] [2022-12-05 18:40:45,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:45,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:45,285 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 18:40:45,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:45,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860384059] [2022-12-05 18:40:45,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860384059] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:45,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:45,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:40:45,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203754825] [2022-12-05 18:40:45,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:45,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:40:45,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:45,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:40:45,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:40:45,288 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2022-12-05 18:40:45,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 86 transitions, 309 flow. Second operand has 7 states, 7 states have (on average 78.42857142857143) internal successors, (549), 7 states have internal predecessors, (549), 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 18:40:45,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:45,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2022-12-05 18:40:45,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:45,430 INFO L130 PetriNetUnfolder]: 50/304 cut-off events. [2022-12-05 18:40:45,430 INFO L131 PetriNetUnfolder]: For 732/942 co-relation queries the response was YES. [2022-12-05 18:40:45,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 920 conditions, 304 events. 50/304 cut-off events. For 732/942 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1400 event pairs, 5 based on Foata normal form. 10/306 useless extension candidates. Maximal degree in co-relation 861. Up to 61 conditions per place. [2022-12-05 18:40:45,433 INFO L137 encePairwiseOnDemand]: 89/99 looper letters, 24 selfloop transitions, 9 changer transitions 17/111 dead transitions. [2022-12-05 18:40:45,433 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 111 transitions, 610 flow [2022-12-05 18:40:45,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 18:40:45,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 18:40:45,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 808 transitions. [2022-12-05 18:40:45,436 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8161616161616162 [2022-12-05 18:40:45,439 INFO L175 Difference]: Start difference. First operand has 120 places, 86 transitions, 309 flow. Second operand 10 states and 808 transitions. [2022-12-05 18:40:45,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 111 transitions, 610 flow [2022-12-05 18:40:45,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 111 transitions, 534 flow, removed 24 selfloop flow, removed 11 redundant places. [2022-12-05 18:40:45,446 INFO L231 Difference]: Finished difference. Result has 120 places, 87 transitions, 313 flow [2022-12-05 18:40:45,446 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=313, PETRI_PLACES=120, PETRI_TRANSITIONS=87} [2022-12-05 18:40:45,448 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 27 predicate places. [2022-12-05 18:40:45,448 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 87 transitions, 313 flow [2022-12-05 18:40:45,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.42857142857143) internal successors, (549), 7 states have internal predecessors, (549), 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 18:40:45,449 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:45,449 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:40:45,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 18:40:45,449 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:40:45,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:45,451 INFO L85 PathProgramCache]: Analyzing trace with hash 446677589, now seen corresponding path program 1 times [2022-12-05 18:40:45,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:45,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633268092] [2022-12-05 18:40:45,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:45,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:45,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:45,667 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 18:40:45,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:45,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633268092] [2022-12-05 18:40:45,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633268092] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:45,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:45,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:40:45,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754621386] [2022-12-05 18:40:45,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:45,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:40:45,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:45,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:40:45,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:40:45,670 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 99 [2022-12-05 18:40:45,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 87 transitions, 313 flow. Second operand has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 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 18:40:45,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:45,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 99 [2022-12-05 18:40:45,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:46,047 INFO L130 PetriNetUnfolder]: 1312/2595 cut-off events. [2022-12-05 18:40:46,047 INFO L131 PetriNetUnfolder]: For 1090/1185 co-relation queries the response was YES. [2022-12-05 18:40:46,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5338 conditions, 2595 events. 1312/2595 cut-off events. For 1090/1185 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 19572 event pairs, 87 based on Foata normal form. 0/2306 useless extension candidates. Maximal degree in co-relation 5282. Up to 845 conditions per place. [2022-12-05 18:40:46,065 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 35 selfloop transitions, 20 changer transitions 0/126 dead transitions. [2022-12-05 18:40:46,065 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 126 transitions, 505 flow [2022-12-05 18:40:46,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 18:40:46,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 18:40:46,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 857 transitions. [2022-12-05 18:40:46,068 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8656565656565657 [2022-12-05 18:40:46,068 INFO L175 Difference]: Start difference. First operand has 120 places, 87 transitions, 313 flow. Second operand 10 states and 857 transitions. [2022-12-05 18:40:46,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 126 transitions, 505 flow [2022-12-05 18:40:46,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 126 transitions, 477 flow, removed 7 selfloop flow, removed 8 redundant places. [2022-12-05 18:40:46,074 INFO L231 Difference]: Finished difference. Result has 121 places, 105 transitions, 428 flow [2022-12-05 18:40:46,074 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=428, PETRI_PLACES=121, PETRI_TRANSITIONS=105} [2022-12-05 18:40:46,075 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 28 predicate places. [2022-12-05 18:40:46,075 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 105 transitions, 428 flow [2022-12-05 18:40:46,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 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 18:40:46,076 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:46,076 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:40:46,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 18:40:46,076 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:40:46,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:46,077 INFO L85 PathProgramCache]: Analyzing trace with hash 48815129, now seen corresponding path program 1 times [2022-12-05 18:40:46,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:46,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055054727] [2022-12-05 18:40:46,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:46,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:46,215 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 18:40:46,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:46,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055054727] [2022-12-05 18:40:46,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055054727] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:46,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:46,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:40:46,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196832953] [2022-12-05 18:40:46,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:46,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:40:46,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:46,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:40:46,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:40:46,217 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 99 [2022-12-05 18:40:46,218 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 105 transitions, 428 flow. Second operand has 7 states, 7 states have (on average 81.71428571428571) internal successors, (572), 7 states have internal predecessors, (572), 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 18:40:46,218 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:46,218 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 99 [2022-12-05 18:40:46,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:46,699 INFO L130 PetriNetUnfolder]: 1468/2913 cut-off events. [2022-12-05 18:40:46,699 INFO L131 PetriNetUnfolder]: For 8464/9632 co-relation queries the response was YES. [2022-12-05 18:40:46,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11152 conditions, 2913 events. 1468/2913 cut-off events. For 8464/9632 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 22752 event pairs, 31 based on Foata normal form. 207/2888 useless extension candidates. Maximal degree in co-relation 11096. Up to 1591 conditions per place. [2022-12-05 18:40:46,725 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 41 selfloop transitions, 38 changer transitions 0/150 dead transitions. [2022-12-05 18:40:46,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 150 transitions, 878 flow [2022-12-05 18:40:46,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:40:46,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:40:46,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1115 transitions. [2022-12-05 18:40:46,728 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8663558663558664 [2022-12-05 18:40:46,728 INFO L175 Difference]: Start difference. First operand has 121 places, 105 transitions, 428 flow. Second operand 13 states and 1115 transitions. [2022-12-05 18:40:46,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 150 transitions, 878 flow [2022-12-05 18:40:46,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 150 transitions, 870 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-05 18:40:46,741 INFO L231 Difference]: Finished difference. Result has 137 places, 125 transitions, 713 flow [2022-12-05 18:40:46,741 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=713, PETRI_PLACES=137, PETRI_TRANSITIONS=125} [2022-12-05 18:40:46,742 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 44 predicate places. [2022-12-05 18:40:46,742 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 125 transitions, 713 flow [2022-12-05 18:40:46,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 81.71428571428571) internal successors, (572), 7 states have internal predecessors, (572), 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 18:40:46,742 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:46,742 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:40:46,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 18:40:46,743 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:40:46,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:46,743 INFO L85 PathProgramCache]: Analyzing trace with hash -2131583680, now seen corresponding path program 1 times [2022-12-05 18:40:46,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:46,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882271851] [2022-12-05 18:40:46,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:46,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:46,882 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 18:40:46,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:46,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882271851] [2022-12-05 18:40:46,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882271851] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:46,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:46,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:40:46,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118480433] [2022-12-05 18:40:46,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:46,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:40:46,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:46,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:40:46,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:40:46,884 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 99 [2022-12-05 18:40:46,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 125 transitions, 713 flow. Second operand has 8 states, 8 states have (on average 81.625) internal successors, (653), 8 states have internal predecessors, (653), 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 18:40:46,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:46,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 99 [2022-12-05 18:40:46,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:47,486 INFO L130 PetriNetUnfolder]: 1435/2877 cut-off events. [2022-12-05 18:40:47,486 INFO L131 PetriNetUnfolder]: For 25940/28102 co-relation queries the response was YES. [2022-12-05 18:40:47,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15904 conditions, 2877 events. 1435/2877 cut-off events. For 25940/28102 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 23016 event pairs, 7 based on Foata normal form. 362/3040 useless extension candidates. Maximal degree in co-relation 15841. Up to 1556 conditions per place. [2022-12-05 18:40:47,525 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 36 selfloop transitions, 58 changer transitions 12/177 dead transitions. [2022-12-05 18:40:47,525 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 177 transitions, 1447 flow [2022-12-05 18:40:47,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-05 18:40:47,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-05 18:40:47,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1373 transitions. [2022-12-05 18:40:47,530 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8667929292929293 [2022-12-05 18:40:47,530 INFO L175 Difference]: Start difference. First operand has 137 places, 125 transitions, 713 flow. Second operand 16 states and 1373 transitions. [2022-12-05 18:40:47,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 177 transitions, 1447 flow [2022-12-05 18:40:47,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 177 transitions, 1344 flow, removed 42 selfloop flow, removed 4 redundant places. [2022-12-05 18:40:47,652 INFO L231 Difference]: Finished difference. Result has 152 places, 151 transitions, 1079 flow [2022-12-05 18:40:47,652 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1079, PETRI_PLACES=152, PETRI_TRANSITIONS=151} [2022-12-05 18:40:47,654 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 59 predicate places. [2022-12-05 18:40:47,654 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 151 transitions, 1079 flow [2022-12-05 18:40:47,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 81.625) internal successors, (653), 8 states have internal predecessors, (653), 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 18:40:47,655 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:47,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:40:47,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 18:40:47,656 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:40:47,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:47,656 INFO L85 PathProgramCache]: Analyzing trace with hash -2047971191, now seen corresponding path program 1 times [2022-12-05 18:40:47,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:47,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391427645] [2022-12-05 18:40:47,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:47,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:47,850 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 18:40:47,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:47,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391427645] [2022-12-05 18:40:47,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391427645] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:47,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:47,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:40:47,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868057662] [2022-12-05 18:40:47,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:47,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:40:47,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:47,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:40:47,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:40:47,854 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2022-12-05 18:40:47,854 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 151 transitions, 1079 flow. Second operand has 8 states, 8 states have (on average 78.25) internal successors, (626), 8 states have internal predecessors, (626), 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 18:40:47,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:47,855 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2022-12-05 18:40:47,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:48,280 INFO L130 PetriNetUnfolder]: 935/2636 cut-off events. [2022-12-05 18:40:48,280 INFO L131 PetriNetUnfolder]: For 17992/18252 co-relation queries the response was YES. [2022-12-05 18:40:48,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11792 conditions, 2636 events. 935/2636 cut-off events. For 17992/18252 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 24752 event pairs, 5 based on Foata normal form. 8/2502 useless extension candidates. Maximal degree in co-relation 11721. Up to 876 conditions per place. [2022-12-05 18:40:48,306 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 25 selfloop transitions, 10 changer transitions 7/167 dead transitions. [2022-12-05 18:40:48,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 167 transitions, 1259 flow [2022-12-05 18:40:48,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:40:48,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:40:48,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 726 transitions. [2022-12-05 18:40:48,309 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2022-12-05 18:40:48,309 INFO L175 Difference]: Start difference. First operand has 152 places, 151 transitions, 1079 flow. Second operand 9 states and 726 transitions. [2022-12-05 18:40:48,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 167 transitions, 1259 flow [2022-12-05 18:40:48,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 167 transitions, 946 flow, removed 114 selfloop flow, removed 11 redundant places. [2022-12-05 18:40:48,537 INFO L231 Difference]: Finished difference. Result has 153 places, 151 transitions, 795 flow [2022-12-05 18:40:48,537 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=795, PETRI_PLACES=153, PETRI_TRANSITIONS=151} [2022-12-05 18:40:48,538 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 60 predicate places. [2022-12-05 18:40:48,538 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 151 transitions, 795 flow [2022-12-05 18:40:48,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 78.25) internal successors, (626), 8 states have internal predecessors, (626), 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 18:40:48,539 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:48,539 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:40:48,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 18:40:48,539 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:40:48,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:48,540 INFO L85 PathProgramCache]: Analyzing trace with hash 175281743, now seen corresponding path program 2 times [2022-12-05 18:40:48,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:48,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906939675] [2022-12-05 18:40:48,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:48,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:48,719 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 18:40:48,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:48,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906939675] [2022-12-05 18:40:48,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906939675] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:48,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:48,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-05 18:40:48,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471898805] [2022-12-05 18:40:48,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:48,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-05 18:40:48,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:48,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-05 18:40:48,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-05 18:40:48,725 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 99 [2022-12-05 18:40:48,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 151 transitions, 795 flow. Second operand has 9 states, 9 states have (on average 81.55555555555556) internal successors, (734), 9 states have internal predecessors, (734), 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 18:40:48,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:48,726 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 99 [2022-12-05 18:40:48,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:49,331 INFO L130 PetriNetUnfolder]: 1476/3105 cut-off events. [2022-12-05 18:40:49,331 INFO L131 PetriNetUnfolder]: For 6096/7006 co-relation queries the response was YES. [2022-12-05 18:40:49,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11110 conditions, 3105 events. 1476/3105 cut-off events. For 6096/7006 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 27025 event pairs, 3 based on Foata normal form. 350/3223 useless extension candidates. Maximal degree in co-relation 11078. Up to 472 conditions per place. [2022-12-05 18:40:49,351 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 25 selfloop transitions, 57 changer transitions 37/190 dead transitions. [2022-12-05 18:40:49,351 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 190 transitions, 1288 flow [2022-12-05 18:40:49,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-05 18:40:49,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-05 18:40:49,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1610 transitions. [2022-12-05 18:40:49,355 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8559276980329612 [2022-12-05 18:40:49,355 INFO L175 Difference]: Start difference. First operand has 153 places, 151 transitions, 795 flow. Second operand 19 states and 1610 transitions. [2022-12-05 18:40:49,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 190 transitions, 1288 flow [2022-12-05 18:40:49,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 190 transitions, 1249 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-12-05 18:40:49,449 INFO L231 Difference]: Finished difference. Result has 166 places, 142 transitions, 830 flow [2022-12-05 18:40:49,450 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=830, PETRI_PLACES=166, PETRI_TRANSITIONS=142} [2022-12-05 18:40:49,450 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 73 predicate places. [2022-12-05 18:40:49,451 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 142 transitions, 830 flow [2022-12-05 18:40:49,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 81.55555555555556) internal successors, (734), 9 states have internal predecessors, (734), 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 18:40:49,451 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:49,451 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:40:49,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-05 18:40:49,453 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 18:40:49,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:49,453 INFO L85 PathProgramCache]: Analyzing trace with hash -2027864258, now seen corresponding path program 1 times [2022-12-05 18:40:49,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:49,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564116990] [2022-12-05 18:40:49,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:49,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:49,606 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 18:40:49,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:49,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564116990] [2022-12-05 18:40:49,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564116990] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:49,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:49,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:40:49,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775394047] [2022-12-05 18:40:49,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:49,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:40:49,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:49,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:40:49,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:40:49,609 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 99 [2022-12-05 18:40:49,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 142 transitions, 830 flow. Second operand has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 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 18:40:49,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:49,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 99 [2022-12-05 18:40:49,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:50,008 INFO L130 PetriNetUnfolder]: 965/2828 cut-off events. [2022-12-05 18:40:50,009 INFO L131 PetriNetUnfolder]: For 6485/6734 co-relation queries the response was YES. [2022-12-05 18:40:50,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8751 conditions, 2828 events. 965/2828 cut-off events. For 6485/6734 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 28695 event pairs, 1 based on Foata normal form. 1/2691 useless extension candidates. Maximal degree in co-relation 8680. Up to 344 conditions per place. [2022-12-05 18:40:50,028 INFO L137 encePairwiseOnDemand]: 93/99 looper letters, 0 selfloop transitions, 0 changer transitions 145/145 dead transitions. [2022-12-05 18:40:50,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 145 transitions, 895 flow [2022-12-05 18:40:50,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 18:40:50,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 18:40:50,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 580 transitions. [2022-12-05 18:40:50,030 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.836940836940837 [2022-12-05 18:40:50,030 INFO L175 Difference]: Start difference. First operand has 166 places, 142 transitions, 830 flow. Second operand 7 states and 580 transitions. [2022-12-05 18:40:50,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 145 transitions, 895 flow [2022-12-05 18:40:50,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 145 transitions, 731 flow, removed 19 selfloop flow, removed 22 redundant places. [2022-12-05 18:40:50,133 INFO L231 Difference]: Finished difference. Result has 144 places, 0 transitions, 0 flow [2022-12-05 18:40:50,133 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=668, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=144, PETRI_TRANSITIONS=0} [2022-12-05 18:40:50,134 INFO L294 CegarLoopForPetriNet]: 93 programPoint places, 51 predicate places. [2022-12-05 18:40:50,134 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 0 transitions, 0 flow [2022-12-05 18:40:50,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 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 18:40:50,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-05 18:40:50,137 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2022-12-05 18:40:50,137 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-05 18:40:50,137 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-05 18:40:50,138 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-05 18:40:50,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-05 18:40:50,138 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:40:50,141 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:40:50,141 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:40:50,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:40:50 BasicIcfg [2022-12-05 18:40:50,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:40:50,146 INFO L158 Benchmark]: Toolchain (without parser) took 9398.46ms. Allocated memory was 169.9MB in the beginning and 521.1MB in the end (delta: 351.3MB). Free memory was 145.0MB in the beginning and 296.5MB in the end (delta: -151.6MB). Peak memory consumption was 201.0MB. Max. memory is 8.0GB. [2022-12-05 18:40:50,146 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 169.9MB. Free memory is still 145.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:40:50,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 525.76ms. Allocated memory is still 169.9MB. Free memory was 145.0MB in the beginning and 121.1MB in the end (delta: 23.8MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-05 18:40:50,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.69ms. Allocated memory is still 169.9MB. Free memory was 121.1MB in the beginning and 119.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 18:40:50,147 INFO L158 Benchmark]: Boogie Preprocessor took 36.80ms. Allocated memory is still 169.9MB. Free memory was 119.0MB in the beginning and 116.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 18:40:50,147 INFO L158 Benchmark]: RCFGBuilder took 467.61ms. Allocated memory is still 169.9MB. Free memory was 116.9MB in the beginning and 102.8MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-05 18:40:50,148 INFO L158 Benchmark]: TraceAbstraction took 8302.53ms. Allocated memory was 169.9MB in the beginning and 521.1MB in the end (delta: 351.3MB). Free memory was 102.3MB in the beginning and 296.5MB in the end (delta: -194.3MB). Peak memory consumption was 158.0MB. Max. memory is 8.0GB. [2022-12-05 18:40:50,149 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 169.9MB. Free memory is still 145.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 525.76ms. Allocated memory is still 169.9MB. Free memory was 145.0MB in the beginning and 121.1MB in the end (delta: 23.8MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.69ms. Allocated memory is still 169.9MB. Free memory was 121.1MB in the beginning and 119.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.80ms. Allocated memory is still 169.9MB. Free memory was 119.0MB in the beginning and 116.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 467.61ms. Allocated memory is still 169.9MB. Free memory was 116.9MB in the beginning and 102.8MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 8302.53ms. Allocated memory was 169.9MB in the beginning and 521.1MB in the end (delta: 351.3MB). Free memory was 102.3MB in the beginning and 296.5MB in the end (delta: -194.3MB). Peak memory consumption was 158.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 128 locations, 5 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: 8.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 709 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 709 mSDsluCounter, 760 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 598 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 907 IncrementalHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 162 mSDtfsCounter, 907 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 164 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1079occurred in iteration=8, InterpolantAutomatonStates: 132, 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, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 710 NumberOfCodeBlocks, 710 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 699 ConstructedInterpolants, 0 QuantifiedInterpolants, 3225 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 18:40:50,163 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...