/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_REDUNDANT_FLOW -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 13:11:00,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 13:11:00,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 13:11:00,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 13:11:00,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 13:11:00,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 13:11:00,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 13:11:00,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 13:11:00,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 13:11:00,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 13:11:00,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 13:11:00,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 13:11:00,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 13:11:00,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 13:11:00,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 13:11:00,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 13:11:00,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 13:11:00,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 13:11:00,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 13:11:00,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 13:11:00,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 13:11:00,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 13:11:00,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 13:11:00,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 13:11:00,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 13:11:00,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 13:11:00,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 13:11:00,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 13:11:00,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 13:11:00,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 13:11:00,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 13:11:00,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 13:11:00,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 13:11:00,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 13:11:00,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 13:11:00,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 13:11:00,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 13:11:00,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 13:11:00,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 13:11:00,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 13:11:00,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 13:11:00,226 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-12 13:11:00,257 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 13:11:00,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 13:11:00,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 13:11:00,259 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 13:11:00,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 13:11:00,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 13:11:00,261 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 13:11:00,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 13:11:00,261 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 13:11:00,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 13:11:00,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 13:11:00,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 13:11:00,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 13:11:00,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 13:11:00,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 13:11:00,262 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 13:11:00,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 13:11:00,263 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 13:11:00,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 13:11:00,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 13:11:00,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 13:11:00,263 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 13:11:00,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 13:11:00,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 13:11:00,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 13:11:00,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 13:11:00,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 13:11:00,264 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 13:11:00,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 13:11:00,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 13:11:00,264 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 13:11:00,264 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_REDUNDANT_FLOW [2022-12-12 13:11:00,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 13:11:00,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 13:11:00,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 13:11:00,620 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 13:11:00,621 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 13:11:00,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c [2022-12-12 13:11:01,798 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 13:11:02,038 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 13:11:02,039 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c [2022-12-12 13:11:02,045 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c62d3565/1a41eafbb40a4885ad1d7304fb0bdc41/FLAGa3dfabaca [2022-12-12 13:11:02,058 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c62d3565/1a41eafbb40a4885ad1d7304fb0bdc41 [2022-12-12 13:11:02,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 13:11:02,061 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 13:11:02,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 13:11:02,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 13:11:02,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 13:11:02,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 01:11:02" (1/1) ... [2022-12-12 13:11:02,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d4708e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:11:02, skipping insertion in model container [2022-12-12 13:11:02,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 01:11:02" (1/1) ... [2022-12-12 13:11:02,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 13:11:02,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 13:11:02,212 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:11:02,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:11:02,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:11:02,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:11:02,218 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:11:02,219 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:11:02,219 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:11:02,220 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:11:02,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:11:02,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:11:02,230 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c[3424,3437] [2022-12-12 13:11:02,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 13:11:02,246 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 13:11:02,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:11:02,259 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:11:02,259 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:11:02,260 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:11:02,261 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:11:02,261 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:11:02,262 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:11:02,263 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:11:02,264 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 13:11:02,265 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 13:11:02,269 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c[3424,3437] [2022-12-12 13:11:02,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 13:11:02,285 INFO L208 MainTranslator]: Completed translation [2022-12-12 13:11:02,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:11:02 WrapperNode [2022-12-12 13:11:02,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 13:11:02,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 13:11:02,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 13:11:02,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 13:11:02,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:11:02" (1/1) ... [2022-12-12 13:11:02,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:11:02" (1/1) ... [2022-12-12 13:11:02,329 INFO L138 Inliner]: procedures = 25, calls = 55, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 245 [2022-12-12 13:11:02,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 13:11:02,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 13:11:02,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 13:11:02,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 13:11:02,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:11:02" (1/1) ... [2022-12-12 13:11:02,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:11:02" (1/1) ... [2022-12-12 13:11:02,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:11:02" (1/1) ... [2022-12-12 13:11:02,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:11:02" (1/1) ... [2022-12-12 13:11:02,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:11:02" (1/1) ... [2022-12-12 13:11:02,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:11:02" (1/1) ... [2022-12-12 13:11:02,355 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:11:02" (1/1) ... [2022-12-12 13:11:02,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:11:02" (1/1) ... [2022-12-12 13:11:02,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 13:11:02,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 13:11:02,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 13:11:02,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 13:11:02,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:11:02" (1/1) ... [2022-12-12 13:11:02,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 13:11:02,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 13:11:02,388 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 13:11:02,390 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 13:11:02,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 13:11:02,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 13:11:02,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 13:11:02,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 13:11:02,423 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 13:11:02,423 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 13:11:02,423 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 13:11:02,423 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 13:11:02,423 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 13:11:02,423 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 13:11:02,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 13:11:02,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 13:11:02,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 13:11:02,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-12 13:11:02,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 13:11:02,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 13:11:02,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 13:11:02,428 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 13:11:02,535 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 13:11:02,537 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 13:11:02,924 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 13:11:03,054 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 13:11:03,055 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-12 13:11:03,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 01:11:03 BoogieIcfgContainer [2022-12-12 13:11:03,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 13:11:03,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 13:11:03,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 13:11:03,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 13:11:03,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 01:11:02" (1/3) ... [2022-12-12 13:11:03,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a594651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 01:11:03, skipping insertion in model container [2022-12-12 13:11:03,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 01:11:02" (2/3) ... [2022-12-12 13:11:03,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a594651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 01:11:03, skipping insertion in model container [2022-12-12 13:11:03,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 01:11:03" (3/3) ... [2022-12-12 13:11:03,064 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-horseshoe.wvr.c [2022-12-12 13:11:03,082 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 13:11:03,082 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 13:11:03,082 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 13:11:03,150 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 13:11:03,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 186 places, 194 transitions, 412 flow [2022-12-12 13:11:03,284 INFO L130 PetriNetUnfolder]: 18/191 cut-off events. [2022-12-12 13:11:03,285 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 13:11:03,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 191 events. 18/191 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 111 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 155. Up to 3 conditions per place. [2022-12-12 13:11:03,289 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 194 transitions, 412 flow [2022-12-12 13:11:03,293 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 173 places, 181 transitions, 380 flow [2022-12-12 13:11:03,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 13:11:03,307 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;@54d14e1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 13:11:03,307 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 13:11:03,338 INFO L130 PetriNetUnfolder]: 18/180 cut-off events. [2022-12-12 13:11:03,339 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 13:11:03,339 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:11:03,340 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 13:11:03,340 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 13:11:03,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:11:03,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1272589224, now seen corresponding path program 1 times [2022-12-12 13:11:03,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:11:03,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835939448] [2022-12-12 13:11:03,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:11:03,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:11:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:11:03,632 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 13:11:03,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:11:03,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835939448] [2022-12-12 13:11:03,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835939448] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:11:03,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:11:03,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 13:11:03,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75960629] [2022-12-12 13:11:03,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:11:03,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-12 13:11:03,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:11:03,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-12 13:11:03,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-12 13:11:03,678 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 194 [2022-12-12 13:11:03,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 181 transitions, 380 flow. Second operand has 2 states, 2 states have (on average 173.5) internal successors, (347), 2 states have internal predecessors, (347), 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 13:11:03,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:11:03,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 194 [2022-12-12 13:11:03,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:11:03,816 INFO L130 PetriNetUnfolder]: 71/354 cut-off events. [2022-12-12 13:11:03,817 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-12-12 13:11:03,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 354 events. 71/354 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1024 event pairs, 38 based on Foata normal form. 60/377 useless extension candidates. Maximal degree in co-relation 331. Up to 106 conditions per place. [2022-12-12 13:11:03,821 INFO L137 encePairwiseOnDemand]: 181/194 looper letters, 11 selfloop transitions, 0 changer transitions 6/168 dead transitions. [2022-12-12 13:11:03,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 168 transitions, 376 flow [2022-12-12 13:11:03,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-12 13:11:03,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-12 13:11:03,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 362 transitions. [2022-12-12 13:11:03,843 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.9329896907216495 [2022-12-12 13:11:03,847 INFO L295 CegarLoopForPetriNet]: 173 programPoint places, 1 predicate places. [2022-12-12 13:11:03,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 168 transitions, 376 flow [2022-12-12 13:11:03,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 168 transitions, 362 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-12-12 13:11:03,853 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 168 transitions, 362 flow [2022-12-12 13:11:03,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 173.5) internal successors, (347), 2 states have internal predecessors, (347), 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 13:11:03,854 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:11:03,854 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 13:11:03,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 13:11:03,855 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 13:11:03,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:11:03,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1759950902, now seen corresponding path program 1 times [2022-12-12 13:11:03,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:11:03,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865917571] [2022-12-12 13:11:03,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:11:03,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:11:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:11:04,352 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 13:11:04,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:11:04,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865917571] [2022-12-12 13:11:04,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865917571] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:11:04,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:11:04,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 13:11:04,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379561334] [2022-12-12 13:11:04,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:11:04,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 13:11:04,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:11:04,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 13:11:04,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-12 13:11:04,365 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 194 [2022-12-12 13:11:04,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 168 transitions, 362 flow. Second operand has 6 states, 6 states have (on average 147.66666666666666) internal successors, (886), 6 states have internal predecessors, (886), 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 13:11:04,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:11:04,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 194 [2022-12-12 13:11:04,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:11:04,623 INFO L130 PetriNetUnfolder]: 73/439 cut-off events. [2022-12-12 13:11:04,624 INFO L131 PetriNetUnfolder]: For 61/99 co-relation queries the response was YES. [2022-12-12 13:11:04,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 439 events. 73/439 cut-off events. For 61/99 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1301 event pairs, 38 based on Foata normal form. 11/406 useless extension candidates. Maximal degree in co-relation 231. Up to 118 conditions per place. [2022-12-12 13:11:04,628 INFO L137 encePairwiseOnDemand]: 182/194 looper letters, 33 selfloop transitions, 8 changer transitions 23/189 dead transitions. [2022-12-12 13:11:04,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 189 transitions, 529 flow [2022-12-12 13:11:04,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-12 13:11:04,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-12 13:11:04,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1348 transitions. [2022-12-12 13:11:04,646 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7720504009163803 [2022-12-12 13:11:04,647 INFO L295 CegarLoopForPetriNet]: 173 programPoint places, 3 predicate places. [2022-12-12 13:11:04,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 189 transitions, 529 flow [2022-12-12 13:11:04,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 189 transitions, 493 flow, removed 17 selfloop flow, removed 2 redundant places. [2022-12-12 13:11:04,651 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 189 transitions, 493 flow [2022-12-12 13:11:04,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 147.66666666666666) internal successors, (886), 6 states have internal predecessors, (886), 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 13:11:04,652 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:11:04,652 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 13:11:04,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 13:11:04,653 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 13:11:04,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:11:04,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1915933528, now seen corresponding path program 1 times [2022-12-12 13:11:04,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:11:04,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739576296] [2022-12-12 13:11:04,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:11:04,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:11:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:11:04,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-12 13:11:04,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:11:04,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739576296] [2022-12-12 13:11:04,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739576296] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:11:04,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:11:04,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-12 13:11:04,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804441857] [2022-12-12 13:11:04,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:11:04,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 13:11:04,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:11:04,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 13:11:04,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-12 13:11:04,928 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 194 [2022-12-12 13:11:04,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 189 transitions, 493 flow. Second operand has 6 states, 6 states have (on average 148.33333333333334) internal successors, (890), 6 states have internal predecessors, (890), 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 13:11:04,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:11:04,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 194 [2022-12-12 13:11:04,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:11:05,112 INFO L130 PetriNetUnfolder]: 94/591 cut-off events. [2022-12-12 13:11:05,112 INFO L131 PetriNetUnfolder]: For 115/175 co-relation queries the response was YES. [2022-12-12 13:11:05,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1023 conditions, 591 events. 94/591 cut-off events. For 115/175 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2234 event pairs, 50 based on Foata normal form. 16/547 useless extension candidates. Maximal degree in co-relation 215. Up to 160 conditions per place. [2022-12-12 13:11:05,116 INFO L137 encePairwiseOnDemand]: 185/194 looper letters, 39 selfloop transitions, 6 changer transitions 39/209 dead transitions. [2022-12-12 13:11:05,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 209 transitions, 736 flow [2022-12-12 13:11:05,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-12 13:11:05,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-12 13:11:05,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1052 transitions. [2022-12-12 13:11:05,119 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7746686303387335 [2022-12-12 13:11:05,119 INFO L295 CegarLoopForPetriNet]: 173 programPoint places, 7 predicate places. [2022-12-12 13:11:05,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 209 transitions, 736 flow [2022-12-12 13:11:05,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 209 transitions, 676 flow, removed 25 selfloop flow, removed 3 redundant places. [2022-12-12 13:11:05,123 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 209 transitions, 676 flow [2022-12-12 13:11:05,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.33333333333334) internal successors, (890), 6 states have internal predecessors, (890), 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 13:11:05,124 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:11:05,124 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 13:11:05,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 13:11:05,124 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 13:11:05,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:11:05,125 INFO L85 PathProgramCache]: Analyzing trace with hash -227490322, now seen corresponding path program 1 times [2022-12-12 13:11:05,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:11:05,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134838410] [2022-12-12 13:11:05,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:11:05,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:11:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:11:05,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 13:11:05,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:11:05,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134838410] [2022-12-12 13:11:05,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134838410] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:11:05,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:11:05,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 13:11:05,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372793942] [2022-12-12 13:11:05,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:11:05,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 13:11:05,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:11:05,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 13:11:05,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 13:11:05,375 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 194 [2022-12-12 13:11:05,376 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 209 transitions, 676 flow. Second operand has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 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 13:11:05,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:11:05,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 194 [2022-12-12 13:11:05,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:11:05,477 INFO L130 PetriNetUnfolder]: 104/616 cut-off events. [2022-12-12 13:11:05,477 INFO L131 PetriNetUnfolder]: For 243/359 co-relation queries the response was YES. [2022-12-12 13:11:05,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1219 conditions, 616 events. 104/616 cut-off events. For 243/359 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2324 event pairs, 29 based on Foata normal form. 9/567 useless extension candidates. Maximal degree in co-relation 284. Up to 176 conditions per place. [2022-12-12 13:11:05,483 INFO L137 encePairwiseOnDemand]: 191/194 looper letters, 19 selfloop transitions, 2 changer transitions 38/214 dead transitions. [2022-12-12 13:11:05,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 214 transitions, 776 flow [2022-12-12 13:11:05,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 13:11:05,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 13:11:05,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 517 transitions. [2022-12-12 13:11:05,485 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8883161512027491 [2022-12-12 13:11:05,486 INFO L295 CegarLoopForPetriNet]: 173 programPoint places, 6 predicate places. [2022-12-12 13:11:05,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 214 transitions, 776 flow [2022-12-12 13:11:05,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 214 transitions, 746 flow, removed 15 selfloop flow, removed 0 redundant places. [2022-12-12 13:11:05,491 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 214 transitions, 746 flow [2022-12-12 13:11:05,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 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 13:11:05,492 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:11:05,492 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 13:11:05,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 13:11:05,493 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 13:11:05,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:11:05,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1996784940, now seen corresponding path program 2 times [2022-12-12 13:11:05,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:11:05,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84363035] [2022-12-12 13:11:05,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:11:05,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:11:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:11:09,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:11:09,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:11:09,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84363035] [2022-12-12 13:11:09,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84363035] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 13:11:09,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124905196] [2022-12-12 13:11:09,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-12 13:11:09,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 13:11:09,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 13:11:09,323 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 13:11:09,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-12 13:11:09,468 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-12 13:11:09,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 13:11:09,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-12 13:11:09,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 13:11:11,405 INFO L321 Elim1Store]: treesize reduction 81, result has 22.9 percent of original size [2022-12-12 13:11:11,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 38 [2022-12-12 13:11:11,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 13:11:11,518 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-12 13:11:11,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124905196] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:11:11,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-12 13:11:11,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [37] total 43 [2022-12-12 13:11:11,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390406030] [2022-12-12 13:11:11,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:11:11,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-12 13:11:11,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:11:11,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-12 13:11:11,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1636, Unknown=0, NotChecked=0, Total=1806 [2022-12-12 13:11:11,523 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 194 [2022-12-12 13:11:11,525 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 214 transitions, 746 flow. Second operand has 14 states, 14 states have (on average 111.57142857142857) internal successors, (1562), 14 states have internal predecessors, (1562), 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 13:11:11,525 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:11:11,525 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 194 [2022-12-12 13:11:11,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:11:12,563 INFO L130 PetriNetUnfolder]: 1268/2870 cut-off events. [2022-12-12 13:11:12,563 INFO L131 PetriNetUnfolder]: For 3636/3998 co-relation queries the response was YES. [2022-12-12 13:11:12,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7496 conditions, 2870 events. 1268/2870 cut-off events. For 3636/3998 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 17615 event pairs, 140 based on Foata normal form. 12/2615 useless extension candidates. Maximal degree in co-relation 1301. Up to 854 conditions per place. [2022-12-12 13:11:12,584 INFO L137 encePairwiseOnDemand]: 171/194 looper letters, 155 selfloop transitions, 20 changer transitions 54/330 dead transitions. [2022-12-12 13:11:12,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 330 transitions, 1720 flow [2022-12-12 13:11:12,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 13:11:12,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-12 13:11:12,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1894 transitions. [2022-12-12 13:11:12,590 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6101804123711341 [2022-12-12 13:11:12,593 INFO L295 CegarLoopForPetriNet]: 173 programPoint places, 21 predicate places. [2022-12-12 13:11:12,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 330 transitions, 1720 flow [2022-12-12 13:11:12,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 330 transitions, 1460 flow, removed 129 selfloop flow, removed 1 redundant places. [2022-12-12 13:11:12,604 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 330 transitions, 1460 flow [2022-12-12 13:11:12,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 111.57142857142857) internal successors, (1562), 14 states have internal predecessors, (1562), 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 13:11:12,605 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:11:12,606 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 13:11:12,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-12 13:11:12,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 13:11:12,813 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 13:11:12,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:11:12,814 INFO L85 PathProgramCache]: Analyzing trace with hash 344787570, now seen corresponding path program 3 times [2022-12-12 13:11:12,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:11:12,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33486702] [2022-12-12 13:11:12,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:11:12,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:11:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:11:16,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:11:16,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:11:16,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33486702] [2022-12-12 13:11:16,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33486702] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 13:11:16,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932930767] [2022-12-12 13:11:16,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-12 13:11:16,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 13:11:16,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 13:11:16,028 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 13:11:16,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-12 13:11:16,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-12 13:11:16,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 13:11:16,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-12 13:11:16,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 13:11:17,750 INFO L321 Elim1Store]: treesize reduction 78, result has 25.7 percent of original size [2022-12-12 13:11:17,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 41 [2022-12-12 13:11:17,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 13:11:17,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-12 13:11:17,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932930767] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:11:17,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-12 13:11:17,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [37] total 44 [2022-12-12 13:11:17,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164688316] [2022-12-12 13:11:17,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:11:17,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-12 13:11:17,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:11:17,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-12 13:11:17,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1718, Unknown=0, NotChecked=0, Total=1892 [2022-12-12 13:11:17,992 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 194 [2022-12-12 13:11:17,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 330 transitions, 1460 flow. Second operand has 15 states, 15 states have (on average 111.26666666666667) internal successors, (1669), 15 states have internal predecessors, (1669), 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 13:11:17,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:11:17,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 194 [2022-12-12 13:11:17,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:11:19,070 INFO L130 PetriNetUnfolder]: 1465/3326 cut-off events. [2022-12-12 13:11:19,071 INFO L131 PetriNetUnfolder]: For 3295/3917 co-relation queries the response was YES. [2022-12-12 13:11:19,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9991 conditions, 3326 events. 1465/3326 cut-off events. For 3295/3917 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 21571 event pairs, 194 based on Foata normal form. 32/3054 useless extension candidates. Maximal degree in co-relation 2203. Up to 1455 conditions per place. [2022-12-12 13:11:19,094 INFO L137 encePairwiseOnDemand]: 171/194 looper letters, 218 selfloop transitions, 25 changer transitions 61/405 dead transitions. [2022-12-12 13:11:19,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 405 transitions, 2422 flow [2022-12-12 13:11:19,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-12 13:11:19,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-12 13:11:19,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2102 transitions. [2022-12-12 13:11:19,099 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6019473081328751 [2022-12-12 13:11:19,102 INFO L295 CegarLoopForPetriNet]: 173 programPoint places, 37 predicate places. [2022-12-12 13:11:19,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 405 transitions, 2422 flow [2022-12-12 13:11:19,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 405 transitions, 2082 flow, removed 159 selfloop flow, removed 4 redundant places. [2022-12-12 13:11:19,115 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 405 transitions, 2082 flow [2022-12-12 13:11:19,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 111.26666666666667) internal successors, (1669), 15 states have internal predecessors, (1669), 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 13:11:19,116 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:11:19,116 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 13:11:19,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-12 13:11:19,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-12 13:11:19,323 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 13:11:19,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:11:19,323 INFO L85 PathProgramCache]: Analyzing trace with hash -2132821454, now seen corresponding path program 4 times [2022-12-12 13:11:19,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:11:19,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582756453] [2022-12-12 13:11:19,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:11:19,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:11:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:11:22,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:11:22,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:11:22,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582756453] [2022-12-12 13:11:22,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582756453] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 13:11:22,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961550408] [2022-12-12 13:11:22,825 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-12 13:11:22,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 13:11:22,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 13:11:22,826 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 13:11:22,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-12 13:11:22,933 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-12 13:11:22,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 13:11:22,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-12 13:11:22,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 13:11:23,909 INFO L321 Elim1Store]: treesize reduction 3, result has 85.0 percent of original size [2022-12-12 13:11:23,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 32 [2022-12-12 13:11:24,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-12 13:11:24,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-12 13:11:24,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961550408] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:11:24,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-12 13:11:24,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [37] total 44 [2022-12-12 13:11:24,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80042073] [2022-12-12 13:11:24,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:11:24,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-12 13:11:24,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:11:24,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-12 13:11:24,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=1692, Unknown=0, NotChecked=0, Total=1892 [2022-12-12 13:11:24,110 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 194 [2022-12-12 13:11:24,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 405 transitions, 2082 flow. Second operand has 14 states, 14 states have (on average 111.57142857142857) internal successors, (1562), 14 states have internal predecessors, (1562), 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 13:11:24,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:11:24,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 194 [2022-12-12 13:11:24,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:11:25,093 INFO L130 PetriNetUnfolder]: 1748/3891 cut-off events. [2022-12-12 13:11:25,093 INFO L131 PetriNetUnfolder]: For 4273/4897 co-relation queries the response was YES. [2022-12-12 13:11:25,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13731 conditions, 3891 events. 1748/3891 cut-off events. For 4273/4897 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 26300 event pairs, 250 based on Foata normal form. 36/3550 useless extension candidates. Maximal degree in co-relation 2249. Up to 1911 conditions per place. [2022-12-12 13:11:25,122 INFO L137 encePairwiseOnDemand]: 171/194 looper letters, 248 selfloop transitions, 31 changer transitions 67/447 dead transitions. [2022-12-12 13:11:25,123 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 447 transitions, 3060 flow [2022-12-12 13:11:25,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-12 13:11:25,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-12 13:11:25,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1890 transitions. [2022-12-12 13:11:25,128 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6088917525773195 [2022-12-12 13:11:25,128 INFO L295 CegarLoopForPetriNet]: 173 programPoint places, 48 predicate places. [2022-12-12 13:11:25,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 447 transitions, 3060 flow [2022-12-12 13:11:25,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 447 transitions, 2582 flow, removed 219 selfloop flow, removed 6 redundant places. [2022-12-12 13:11:25,150 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 447 transitions, 2582 flow [2022-12-12 13:11:25,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 111.57142857142857) internal successors, (1562), 14 states have internal predecessors, (1562), 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 13:11:25,152 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:11:25,152 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 13:11:25,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-12 13:11:25,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 13:11:25,363 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 1 more)] === [2022-12-12 13:11:25,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:11:25,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1647375352, now seen corresponding path program 5 times [2022-12-12 13:11:25,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:11:25,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182738212] [2022-12-12 13:11:25,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:11:25,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:11:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:11:28,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:11:28,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:11:28,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182738212] [2022-12-12 13:11:28,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182738212] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 13:11:28,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578214757] [2022-12-12 13:11:28,698 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-12 13:11:28,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 13:11:28,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 13:11:28,699 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 13:11:28,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-12 13:11:28,808 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-12 13:11:28,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 13:11:28,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 108 conjunts are in the unsatisfiable core [2022-12-12 13:11:28,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 13:11:28,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-12 13:11:28,905 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-12 13:11:28,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-12-12 13:11:29,001 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-12-12 13:11:29,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 22 [2022-12-12 13:11:29,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 13:11:29,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 13:11:29,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 13:11:29,859 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-12 13:11:29,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 30 [2022-12-12 13:11:30,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-12 13:11:31,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 13:11:31,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 13:11:31,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 13:11:31,838 INFO L321 Elim1Store]: treesize reduction 40, result has 29.8 percent of original size [2022-12-12 13:11:31,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 26 treesize of output 32 [2022-12-12 13:11:32,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-12 13:11:33,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-12 13:11:33,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-12 13:11:34,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-12 13:11:34,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-12-12 13:11:34,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-12 13:11:34,574 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-12 13:11:34,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 19 [2022-12-12 13:11:34,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:11:34,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 13:11:59,599 INFO L321 Elim1Store]: treesize reduction 23, result has 60.3 percent of original size [2022-12-12 13:11:59,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 261 treesize of output 135 [2022-12-12 13:11:59,857 INFO L321 Elim1Store]: treesize reduction 4, result has 97.4 percent of original size [2022-12-12 13:11:59,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 7712 treesize of output 7386 [2022-12-12 13:11:59,982 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 13:11:59,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 7222 treesize of output 6970 [2022-12-12 13:12:00,076 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 13:12:00,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 6764 treesize of output 5524 [2022-12-12 13:12:00,179 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-12 13:12:00,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 5610 treesize of output 5026 Received shutdown request... [2022-12-12 13:24:20,416 WARN L249 SmtUtils]: Removed 1 from assertion stack [2022-12-12 13:24:20,418 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 13:24:20,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-12 13:24:20,451 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-12 13:24:20,451 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-12 13:24:20,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 13:24:20,625 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 156 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. [2022-12-12 13:24:20,627 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 13:24:20,627 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 13:24:20,628 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 13:24:20,628 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1] [2022-12-12 13:24:20,631 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 13:24:20,631 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 13:24:20,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 01:24:20 BasicIcfg [2022-12-12 13:24:20,635 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 13:24:20,636 INFO L158 Benchmark]: Toolchain (without parser) took 798575.15ms. Allocated memory was 186.6MB in the beginning and 744.5MB in the end (delta: 557.8MB). Free memory was 163.2MB in the beginning and 517.7MB in the end (delta: -354.5MB). Peak memory consumption was 470.3MB. Max. memory is 8.0GB. [2022-12-12 13:24:20,636 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 186.6MB. Free memory is still 162.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 13:24:20,636 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.00ms. Allocated memory is still 186.6MB. Free memory was 163.2MB in the beginning and 149.8MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-12 13:24:20,637 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.13ms. Allocated memory is still 186.6MB. Free memory was 149.8MB in the beginning and 147.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 13:24:20,637 INFO L158 Benchmark]: Boogie Preprocessor took 28.62ms. Allocated memory is still 186.6MB. Free memory was 147.7MB in the beginning and 145.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 13:24:20,638 INFO L158 Benchmark]: RCFGBuilder took 697.44ms. Allocated memory is still 186.6MB. Free memory was 145.6MB in the beginning and 112.6MB in the end (delta: 33.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2022-12-12 13:24:20,639 INFO L158 Benchmark]: TraceAbstraction took 797576.61ms. Allocated memory was 186.6MB in the beginning and 744.5MB in the end (delta: 557.8MB). Free memory was 111.6MB in the beginning and 517.7MB in the end (delta: -406.1MB). Peak memory consumption was 419.0MB. Max. memory is 8.0GB. [2022-12-12 13:24:20,643 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 186.6MB. Free memory is still 162.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 224.00ms. Allocated memory is still 186.6MB. Free memory was 163.2MB in the beginning and 149.8MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.13ms. Allocated memory is still 186.6MB. Free memory was 149.8MB in the beginning and 147.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.62ms. Allocated memory is still 186.6MB. Free memory was 147.7MB in the beginning and 145.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 697.44ms. Allocated memory is still 186.6MB. Free memory was 145.6MB in the beginning and 112.6MB in the end (delta: 33.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * TraceAbstraction took 797576.61ms. Allocated memory was 186.6MB in the beginning and 744.5MB in the end (delta: 557.8MB). Free memory was 111.6MB in the beginning and 517.7MB in the end (delta: -406.1MB). Peak memory consumption was 419.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 156 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 156 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 156 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 121]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 156 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 207 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 797.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 606 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 606 mSDsluCounter, 1942 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1678 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2378 IncrementalHoareTripleChecker+Invalid, 2411 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 264 mSDtfsCounter, 2378 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 610 GetRequests, 451 SyntacticMatches, 6 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1921 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2582occurred in iteration=7, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 1218 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 16.1s InterpolantComputationTime, 1508 NumberOfCodeBlocks, 1464 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1498 ConstructedInterpolants, 28 QuantifiedInterpolants, 31595 SizeOfPredicates, 49 NumberOfNonLiveVariables, 1067 ConjunctsInSsa, 103 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 9/15 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown