/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 15:01:34,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 15:01:34,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 15:01:34,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 15:01:34,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 15:01:34,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 15:01:34,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 15:01:34,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 15:01:34,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 15:01:34,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 15:01:34,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 15:01:34,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 15:01:34,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 15:01:34,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 15:01:34,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 15:01:34,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 15:01:34,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 15:01:34,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 15:01:34,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 15:01:34,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 15:01:34,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 15:01:34,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 15:01:34,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 15:01:34,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 15:01:34,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 15:01:34,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 15:01:34,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 15:01:34,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 15:01:34,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 15:01:34,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-12 15:01:34,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 15:01:34,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 15:01:34,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 15:01:34,232 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 15:01:34,260 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 15:01:34,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 15:01:34,262 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 15:01:34,262 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 15:01:34,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 15:01:34,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 15:01:34,263 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 15:01:34,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 15:01:34,273 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 15:01:34,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 15:01:34,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 15:01:34,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 15:01:34,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 15:01:34,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 15:01:34,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 15:01:34,275 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 15:01:34,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 15:01:34,275 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 15:01:34,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 15:01:34,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 15:01:34,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 15:01:34,275 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 15:01:34,275 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 15:01:34,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:01:34,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 15:01:34,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 15:01:34,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 15:01:34,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 15:01:34,276 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 15:01:34,276 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 15:01:34,277 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 15:01:34,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 15:01:34,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 15:01:34,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 15:01:34,570 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 15:01:34,570 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 15:01:34,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2022-12-12 15:01:35,741 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 15:01:36,054 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 15:01:36,055 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2022-12-12 15:01:36,073 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c3c61ffb/6a8bb78013ba404d94d82e6664565018/FLAGa6aa10573 [2022-12-12 15:01:36,093 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c3c61ffb/6a8bb78013ba404d94d82e6664565018 [2022-12-12 15:01:36,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 15:01:36,097 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 15:01:36,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 15:01:36,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 15:01:36,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 15:01:36,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:01:36" (1/1) ... [2022-12-12 15:01:36,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cba73f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:36, skipping insertion in model container [2022-12-12 15:01:36,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:01:36" (1/1) ... [2022-12-12 15:01:36,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 15:01:36,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 15:01:36,322 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2022-12-12 15:01:36,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:01:36,479 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 15:01:36,492 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2022-12-12 15:01:36,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:01:36,567 INFO L208 MainTranslator]: Completed translation [2022-12-12 15:01:36,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:36 WrapperNode [2022-12-12 15:01:36,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 15:01:36,570 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 15:01:36,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 15:01:36,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 15:01:36,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:36" (1/1) ... [2022-12-12 15:01:36,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:36" (1/1) ... [2022-12-12 15:01:36,605 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-12-12 15:01:36,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 15:01:36,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 15:01:36,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 15:01:36,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 15:01:36,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:36" (1/1) ... [2022-12-12 15:01:36,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:36" (1/1) ... [2022-12-12 15:01:36,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:36" (1/1) ... [2022-12-12 15:01:36,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:36" (1/1) ... [2022-12-12 15:01:36,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:36" (1/1) ... [2022-12-12 15:01:36,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:36" (1/1) ... [2022-12-12 15:01:36,620 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:36" (1/1) ... [2022-12-12 15:01:36,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:36" (1/1) ... [2022-12-12 15:01:36,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 15:01:36,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 15:01:36,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 15:01:36,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 15:01:36,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:36" (1/1) ... [2022-12-12 15:01:36,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:01:36,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:01:36,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 15:01:36,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 15:01:36,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 15:01:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 15:01:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 15:01:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 15:01:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-12 15:01:36,682 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-12 15:01:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 15:01:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 15:01:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 15:01:36,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 15:01:36,683 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 15:01:36,779 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 15:01:36,781 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 15:01:36,955 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 15:01:36,960 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 15:01:36,960 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 15:01:36,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:01:36 BoogieIcfgContainer [2022-12-12 15:01:36,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 15:01:36,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 15:01:36,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 15:01:36,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 15:01:36,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 03:01:36" (1/3) ... [2022-12-12 15:01:36,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32dfdf5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:01:36, skipping insertion in model container [2022-12-12 15:01:36,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:36" (2/3) ... [2022-12-12 15:01:36,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32dfdf5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:01:36, skipping insertion in model container [2022-12-12 15:01:36,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:01:36" (3/3) ... [2022-12-12 15:01:36,968 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2022-12-12 15:01:37,015 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 15:01:37,015 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 15:01:37,016 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 15:01:37,075 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 15:01:37,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 127 flow [2022-12-12 15:01:37,165 INFO L130 PetriNetUnfolder]: 1/60 cut-off events. [2022-12-12 15:01:37,166 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:01:37,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2022-12-12 15:01:37,173 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 61 transitions, 127 flow [2022-12-12 15:01:37,177 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2022-12-12 15:01:37,179 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 15:01:37,198 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-12 15:01:37,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow [2022-12-12 15:01:37,240 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-12-12 15:01:37,241 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:01:37,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-12 15:01:37,243 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-12 15:01:37,243 INFO L226 LiptonReduction]: Number of co-enabled transitions 264 [2022-12-12 15:01:40,190 INFO L241 LiptonReduction]: Total number of compositions: 44 [2022-12-12 15:01:40,201 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 15:01:40,206 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;@6a98b038, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 15:01:40,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-12 15:01:40,210 INFO L130 PetriNetUnfolder]: 0/16 cut-off events. [2022-12-12 15:01:40,210 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:01:40,210 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:01:40,211 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-12 15:01:40,211 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 15:01:40,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:01:40,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1994105818, now seen corresponding path program 1 times [2022-12-12 15:01:40,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:01:40,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803371784] [2022-12-12 15:01:40,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:01:40,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:01:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:01:40,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:01:40,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:01:40,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803371784] [2022-12-12 15:01:40,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803371784] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:01:40,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:01:40,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 15:01:40,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526292894] [2022-12-12 15:01:40,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:01:40,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 15:01:40,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:01:40,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 15:01:40,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 15:01:40,551 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 17 [2022-12-12 15:01:40,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 37 flow. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:01:40,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:01:40,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 17 [2022-12-12 15:01:40,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:01:40,603 INFO L130 PetriNetUnfolder]: 27/78 cut-off events. [2022-12-12 15:01:40,603 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:01:40,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 78 events. 27/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 274 event pairs, 24 based on Foata normal form. 9/60 useless extension candidates. Maximal degree in co-relation 147. Up to 65 conditions per place. [2022-12-12 15:01:40,605 INFO L137 encePairwiseOnDemand]: 10/17 looper letters, 9 selfloop transitions, 6 changer transitions 4/20 dead transitions. [2022-12-12 15:01:40,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 20 transitions, 79 flow [2022-12-12 15:01:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 15:01:40,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 15:01:40,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2022-12-12 15:01:40,614 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.49019607843137253 [2022-12-12 15:01:40,615 INFO L175 Difference]: Start difference. First operand has 21 places, 17 transitions, 37 flow. Second operand 3 states and 25 transitions. [2022-12-12 15:01:40,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 20 transitions, 79 flow [2022-12-12 15:01:40,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 20 transitions, 78 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-12 15:01:40,619 INFO L231 Difference]: Finished difference. Result has 23 places, 13 transitions, 48 flow [2022-12-12 15:01:40,620 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=23, PETRI_TRANSITIONS=13} [2022-12-12 15:01:40,623 INFO L295 CegarLoopForPetriNet]: 21 programPoint places, 2 predicate places. [2022-12-12 15:01:40,624 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 13 transitions, 48 flow [2022-12-12 15:01:40,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:01:40,624 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:01:40,624 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:01:40,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 15:01:40,625 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 15:01:40,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:01:40,625 INFO L85 PathProgramCache]: Analyzing trace with hash 800255505, now seen corresponding path program 1 times [2022-12-12 15:01:40,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:01:40,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301741880] [2022-12-12 15:01:40,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:01:40,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:01:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:01:40,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:01:40,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:01:40,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301741880] [2022-12-12 15:01:40,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301741880] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:01:40,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:01:40,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 15:01:40,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953863390] [2022-12-12 15:01:40,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:01:40,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 15:01:40,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:01:40,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 15:01:40,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 15:01:40,706 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 17 [2022-12-12 15:01:40,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 13 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:01:40,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:01:40,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 17 [2022-12-12 15:01:40,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:01:40,753 INFO L130 PetriNetUnfolder]: 11/50 cut-off events. [2022-12-12 15:01:40,753 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-12 15:01:40,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 50 events. 11/50 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 153 event pairs, 4 based on Foata normal form. 4/44 useless extension candidates. Maximal degree in co-relation 117. Up to 33 conditions per place. [2022-12-12 15:01:40,755 INFO L137 encePairwiseOnDemand]: 10/17 looper letters, 9 selfloop transitions, 4 changer transitions 5/19 dead transitions. [2022-12-12 15:01:40,757 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 19 transitions, 107 flow [2022-12-12 15:01:40,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 15:01:40,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 15:01:40,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2022-12-12 15:01:40,758 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5098039215686274 [2022-12-12 15:01:40,759 INFO L175 Difference]: Start difference. First operand has 23 places, 13 transitions, 48 flow. Second operand 3 states and 26 transitions. [2022-12-12 15:01:40,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 19 transitions, 107 flow [2022-12-12 15:01:40,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 19 transitions, 89 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 15:01:40,760 INFO L231 Difference]: Finished difference. Result has 20 places, 13 transitions, 54 flow [2022-12-12 15:01:40,760 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=20, PETRI_TRANSITIONS=13} [2022-12-12 15:01:40,761 INFO L295 CegarLoopForPetriNet]: 21 programPoint places, -1 predicate places. [2022-12-12 15:01:40,761 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 13 transitions, 54 flow [2022-12-12 15:01:40,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:01:40,761 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:01:40,761 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:01:40,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 15:01:40,762 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 15:01:40,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:01:40,762 INFO L85 PathProgramCache]: Analyzing trace with hash 780305145, now seen corresponding path program 2 times [2022-12-12 15:01:40,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:01:40,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113411269] [2022-12-12 15:01:40,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:01:40,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:01:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:01:40,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:01:40,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:01:40,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113411269] [2022-12-12 15:01:40,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113411269] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:01:40,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:01:40,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 15:01:40,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717789977] [2022-12-12 15:01:40,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:01:40,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 15:01:40,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:01:40,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 15:01:40,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-12 15:01:40,986 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 17 [2022-12-12 15:01:40,986 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:01:40,986 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:01:40,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 17 [2022-12-12 15:01:40,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:01:41,034 INFO L130 PetriNetUnfolder]: 3/33 cut-off events. [2022-12-12 15:01:41,034 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-12 15:01:41,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 33 events. 3/33 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 80 event pairs, 0 based on Foata normal form. 1/28 useless extension candidates. Maximal degree in co-relation 90. Up to 19 conditions per place. [2022-12-12 15:01:41,035 INFO L137 encePairwiseOnDemand]: 13/17 looper letters, 8 selfloop transitions, 4 changer transitions 4/17 dead transitions. [2022-12-12 15:01:41,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 17 transitions, 106 flow [2022-12-12 15:01:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 15:01:41,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 15:01:41,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2022-12-12 15:01:41,038 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.36764705882352944 [2022-12-12 15:01:41,038 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 54 flow. Second operand 4 states and 25 transitions. [2022-12-12 15:01:41,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 17 transitions, 106 flow [2022-12-12 15:01:41,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 17 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-12 15:01:41,043 INFO L231 Difference]: Finished difference. Result has 21 places, 13 transitions, 54 flow [2022-12-12 15:01:41,043 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=54, PETRI_PLACES=21, PETRI_TRANSITIONS=13} [2022-12-12 15:01:41,044 INFO L295 CegarLoopForPetriNet]: 21 programPoint places, 0 predicate places. [2022-12-12 15:01:41,044 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 54 flow [2022-12-12 15:01:41,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:01:41,045 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:01:41,045 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 15:01:41,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 15:01:41,045 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 15:01:41,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:01:41,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1564276330, now seen corresponding path program 1 times [2022-12-12 15:01:41,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:01:41,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542251592] [2022-12-12 15:01:41,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:01:41,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:01:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 15:01:41,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 15:01:41,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 15:01:41,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542251592] [2022-12-12 15:01:41,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542251592] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 15:01:41,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 15:01:41,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 15:01:41,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213435990] [2022-12-12 15:01:41,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 15:01:41,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 15:01:41,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 15:01:41,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 15:01:41,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 15:01:41,228 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 17 [2022-12-12 15:01:41,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 13 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:01:41,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 15:01:41,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 17 [2022-12-12 15:01:41,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 15:01:41,257 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-12-12 15:01:41,257 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 15:01:41,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 37 event pairs, 0 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2022-12-12 15:01:41,258 INFO L137 encePairwiseOnDemand]: 10/17 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2022-12-12 15:01:41,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 12 transitions, 72 flow [2022-12-12 15:01:41,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 15:01:41,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 15:01:41,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2022-12-12 15:01:41,259 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.29411764705882354 [2022-12-12 15:01:41,259 INFO L175 Difference]: Start difference. First operand has 21 places, 13 transitions, 54 flow. Second operand 4 states and 20 transitions. [2022-12-12 15:01:41,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 12 transitions, 72 flow [2022-12-12 15:01:41,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 12 transitions, 56 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-12 15:01:41,260 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2022-12-12 15:01:41,260 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=17, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2022-12-12 15:01:41,261 INFO L295 CegarLoopForPetriNet]: 21 programPoint places, -1 predicate places. [2022-12-12 15:01:41,262 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2022-12-12 15:01:41,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 15:01:41,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-12 15:01:41,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-12 15:01:41,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 15:01:41,265 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-12-12 15:01:41,270 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 15:01:41,270 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 15:01:41,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 03:01:41 BasicIcfg [2022-12-12 15:01:41,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 15:01:41,278 INFO L158 Benchmark]: Toolchain (without parser) took 5181.31ms. Allocated memory was 181.4MB in the beginning and 222.3MB in the end (delta: 40.9MB). Free memory was 157.0MB in the beginning and 76.4MB in the end (delta: 80.6MB). Peak memory consumption was 122.6MB. Max. memory is 8.0GB. [2022-12-12 15:01:41,278 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 181.4MB. Free memory is still 159.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 15:01:41,279 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.98ms. Allocated memory is still 181.4MB. Free memory was 157.0MB in the beginning and 138.0MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-12 15:01:41,279 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.00ms. Allocated memory is still 181.4MB. Free memory was 138.0MB in the beginning and 136.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 15:01:41,282 INFO L158 Benchmark]: Boogie Preprocessor took 16.98ms. Allocated memory is still 181.4MB. Free memory was 136.0MB in the beginning and 134.7MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 15:01:41,285 INFO L158 Benchmark]: RCFGBuilder took 338.41ms. Allocated memory is still 181.4MB. Free memory was 134.7MB in the beginning and 122.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-12 15:01:41,285 INFO L158 Benchmark]: TraceAbstraction took 4313.77ms. Allocated memory was 181.4MB in the beginning and 222.3MB in the end (delta: 40.9MB). Free memory was 121.1MB in the beginning and 76.4MB in the end (delta: 44.6MB). Peak memory consumption was 87.0MB. Max. memory is 8.0GB. [2022-12-12 15:01:41,286 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 181.4MB. Free memory is still 159.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 469.98ms. Allocated memory is still 181.4MB. Free memory was 157.0MB in the beginning and 138.0MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.00ms. Allocated memory is still 181.4MB. Free memory was 138.0MB in the beginning and 136.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.98ms. Allocated memory is still 181.4MB. Free memory was 136.0MB in the beginning and 134.7MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 338.41ms. Allocated memory is still 181.4MB. Free memory was 134.7MB in the beginning and 122.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4313.77ms. Allocated memory was 181.4MB in the beginning and 222.3MB in the end (delta: 40.9MB). Free memory was 121.1MB in the beginning and 76.4MB in the end (delta: 44.6MB). Peak memory consumption was 87.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 56 PlacesBefore, 21 PlacesAfterwards, 52 TransitionsBefore, 17 TransitionsAfterwards, 264 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 27 TrivialYvCompositions, 15 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 374, independent: 309, independent conditional: 309, independent unconditional: 0, dependent: 65, dependent conditional: 65, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 374, independent: 309, independent conditional: 0, independent unconditional: 309, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 374, independent: 309, independent conditional: 0, independent unconditional: 309, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 374, independent: 309, independent conditional: 0, independent unconditional: 309, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 232, independent: 202, independent conditional: 0, independent unconditional: 202, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 232, independent: 182, independent conditional: 0, independent unconditional: 182, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 128, independent: 51, independent conditional: 0, independent unconditional: 51, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 374, independent: 107, independent conditional: 0, independent unconditional: 107, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 232, unknown conditional: 0, unknown unconditional: 232] , Statistics on independence cache: Total cache size (in pairs): 371, Positive cache size: 341, Positive conditional cache size: 0, Positive unconditional cache size: 341, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 19]: 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 3 procedures, 74 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 95 IncrementalHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 1 mSDtfsCounter, 95 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 164 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 15:01:41,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...