/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/bigshot_s.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:01:05,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:01:05,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:01:05,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:01:05,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:01:05,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:01:05,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:01:05,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:01:05,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:01:05,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:01:05,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:01:05,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:01:05,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:01:05,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:01:05,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:01:05,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:01:05,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:01:05,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:01:05,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:01:05,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:01:05,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:01:05,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:01:05,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:01:05,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:01:05,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:01:05,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:01:05,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:01:05,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:01:05,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:01:05,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:01:05,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:01:05,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:01:05,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:01:05,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:01:05,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:01:05,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:01:05,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:01:05,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:01:05,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:01:05,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:01:05,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:01:05,156 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 [2022-12-06 16:01:05,181 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:01:05,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:01:05,182 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:01:05,182 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:01:05,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:01:05,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:01:05,183 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:01:05,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:01:05,184 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:01:05,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:01:05,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:01:05,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:01:05,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:01:05,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:01:05,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:01:05,185 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:01:05,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:01:05,185 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:01:05,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:01:05,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:01:05,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:01:05,186 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:01:05,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:01:05,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:01:05,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:01:05,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:01:05,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:01:05,186 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:01:05,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:01:05,187 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:01:05,187 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:01:05,187 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:01:05,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:01:05,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:01:05,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:01:05,508 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:01:05,509 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:01:05,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/bigshot_s.i [2022-12-06 16:01:06,508 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:01:06,845 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:01:06,846 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s.i [2022-12-06 16:01:06,860 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef5afdbae/0e3994e323d24d229878264eee726762/FLAGbaaf83633 [2022-12-06 16:01:06,873 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef5afdbae/0e3994e323d24d229878264eee726762 [2022-12-06 16:01:06,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:01:06,876 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:01:06,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:01:06,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:01:06,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:01:06,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:01:06" (1/1) ... [2022-12-06 16:01:06,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd63713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:06, skipping insertion in model container [2022-12-06 16:01:06,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:01:06" (1/1) ... [2022-12-06 16:01:06,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:01:06,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:01:07,483 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s.i[55202,55215] [2022-12-06 16:01:07,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:01:07,509 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:01:07,569 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s.i[55202,55215] [2022-12-06 16:01:07,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:01:07,644 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:01:07,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:07 WrapperNode [2022-12-06 16:01:07,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:01:07,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:01:07,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:01:07,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:01:07,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:07" (1/1) ... [2022-12-06 16:01:07,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:07" (1/1) ... [2022-12-06 16:01:07,693 INFO L138 Inliner]: procedures = 323, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2022-12-06 16:01:07,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:01:07,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:01:07,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:01:07,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:01:07,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:07" (1/1) ... [2022-12-06 16:01:07,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:07" (1/1) ... [2022-12-06 16:01:07,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:07" (1/1) ... [2022-12-06 16:01:07,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:07" (1/1) ... [2022-12-06 16:01:07,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:07" (1/1) ... [2022-12-06 16:01:07,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:07" (1/1) ... [2022-12-06 16:01:07,717 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:07" (1/1) ... [2022-12-06 16:01:07,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:07" (1/1) ... [2022-12-06 16:01:07,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:01:07,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:01:07,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:01:07,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:01:07,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:07" (1/1) ... [2022-12-06 16:01:07,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:01:07,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:01:07,782 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) [2022-12-06 16:01:07,792 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 [2022-12-06 16:01:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:01:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:01:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-06 16:01:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 16:01:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 16:01:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 16:01:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 16:01:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 16:01:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:01:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 16:01:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:01:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:01:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:01:07,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:01:07,832 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:01:07,970 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:01:07,972 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:01:08,142 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:01:08,147 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:01:08,147 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-06 16:01:08,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:01:08 BoogieIcfgContainer [2022-12-06 16:01:08,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:01:08,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:01:08,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:01:08,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:01:08,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:01:06" (1/3) ... [2022-12-06 16:01:08,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648bba66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:01:08, skipping insertion in model container [2022-12-06 16:01:08,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:01:07" (2/3) ... [2022-12-06 16:01:08,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648bba66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:01:08, skipping insertion in model container [2022-12-06 16:01:08,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:01:08" (3/3) ... [2022-12-06 16:01:08,154 INFO L112 eAbstractionObserver]: Analyzing ICFG bigshot_s.i [2022-12-06 16:01:08,167 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:01:08,168 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:01:08,169 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:01:08,261 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 16:01:08,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 87 transitions, 190 flow [2022-12-06 16:01:08,431 INFO L130 PetriNetUnfolder]: 5/85 cut-off events. [2022-12-06 16:01:08,431 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 16:01:08,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 85 events. 5/85 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2022-12-06 16:01:08,435 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 87 transitions, 190 flow [2022-12-06 16:01:08,440 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 73 transitions, 158 flow [2022-12-06 16:01:08,451 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:01:08,471 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;@4f73239e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:01:08,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 16:01:08,514 INFO L130 PetriNetUnfolder]: 4/72 cut-off events. [2022-12-06 16:01:08,514 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 16:01:08,514 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:01:08,515 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:01:08,515 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:01:08,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:01:08,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1691876008, now seen corresponding path program 1 times [2022-12-06 16:01:08,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:01:08,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706102058] [2022-12-06 16:01:08,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:01:08,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:01:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:01:09,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:09,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:01:09,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706102058] [2022-12-06 16:01:09,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706102058] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:01:09,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:01:09,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 16:01:09,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619682681] [2022-12-06 16:01:09,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:01:09,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 16:01:09,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:01:09,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 16:01:09,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 16:01:09,254 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 87 [2022-12-06 16:01:09,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 73 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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) [2022-12-06 16:01:09,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:01:09,259 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 87 [2022-12-06 16:01:09,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:01:09,383 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-12-06 16:01:09,384 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-06 16:01:09,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 71 events. 2/71 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 1/70 useless extension candidates. Maximal degree in co-relation 45. Up to 8 conditions per place. [2022-12-06 16:01:09,386 INFO L137 encePairwiseOnDemand]: 82/87 looper letters, 9 selfloop transitions, 3 changer transitions 0/71 dead transitions. [2022-12-06 16:01:09,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 71 transitions, 178 flow [2022-12-06 16:01:09,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 16:01:09,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 16:01:09,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 369 transitions. [2022-12-06 16:01:09,406 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8482758620689655 [2022-12-06 16:01:09,413 INFO L294 CegarLoopForPetriNet]: 76 programPoint places, 4 predicate places. [2022-12-06 16:01:09,413 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 71 transitions, 178 flow [2022-12-06 16:01:09,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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) [2022-12-06 16:01:09,414 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:01:09,414 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:01:09,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:01:09,415 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:01:09,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:01:09,416 INFO L85 PathProgramCache]: Analyzing trace with hash -765201644, now seen corresponding path program 1 times [2022-12-06 16:01:09,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:01:09,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296412187] [2022-12-06 16:01:09,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:01:09,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:01:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:01:09,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:09,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:01:09,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296412187] [2022-12-06 16:01:09,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296412187] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:01:09,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:01:09,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:01:09,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43914953] [2022-12-06 16:01:09,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:01:09,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:01:09,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:01:09,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:01:09,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:01:09,693 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 87 [2022-12-06 16:01:09,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 71 transitions, 178 flow. Second operand has 6 states, 6 states have (on average 67.33333333333333) internal successors, (404), 6 states have internal predecessors, (404), 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) [2022-12-06 16:01:09,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:01:09,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 87 [2022-12-06 16:01:09,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:01:09,760 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-12-06 16:01:09,760 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-12-06 16:01:09,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 70 events. 1/70 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 14 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 53. Up to 8 conditions per place. [2022-12-06 16:01:09,761 INFO L137 encePairwiseOnDemand]: 80/87 looper letters, 10 selfloop transitions, 6 changer transitions 0/70 dead transitions. [2022-12-06 16:01:09,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 70 transitions, 208 flow [2022-12-06 16:01:09,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 16:01:09,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 16:01:09,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 407 transitions. [2022-12-06 16:01:09,763 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7796934865900383 [2022-12-06 16:01:09,763 INFO L294 CegarLoopForPetriNet]: 76 programPoint places, 9 predicate places. [2022-12-06 16:01:09,763 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 70 transitions, 208 flow [2022-12-06 16:01:09,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.33333333333333) internal successors, (404), 6 states have internal predecessors, (404), 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) [2022-12-06 16:01:09,764 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:01:09,764 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:01:09,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:01:09,764 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:01:09,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:01:09,765 INFO L85 PathProgramCache]: Analyzing trace with hash -425898076, now seen corresponding path program 1 times [2022-12-06 16:01:09,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:01:09,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726675284] [2022-12-06 16:01:09,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:01:09,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:01:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:01:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:10,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:01:10,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726675284] [2022-12-06 16:01:10,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726675284] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:01:10,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:01:10,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 16:01:10,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711484041] [2022-12-06 16:01:10,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:01:10,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 16:01:10,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:01:10,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 16:01:10,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-06 16:01:10,073 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 87 [2022-12-06 16:01:10,073 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 70 transitions, 208 flow. Second operand has 10 states, 10 states have (on average 48.3) internal successors, (483), 10 states have internal predecessors, (483), 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) [2022-12-06 16:01:10,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:01:10,073 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 87 [2022-12-06 16:01:10,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:01:10,280 INFO L130 PetriNetUnfolder]: 16/115 cut-off events. [2022-12-06 16:01:10,280 INFO L131 PetriNetUnfolder]: For 40/41 co-relation queries the response was YES. [2022-12-06 16:01:10,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 115 events. 16/115 cut-off events. For 40/41 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 158 event pairs, 1 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 140. Up to 20 conditions per place. [2022-12-06 16:01:10,281 INFO L137 encePairwiseOnDemand]: 77/87 looper letters, 36 selfloop transitions, 10 changer transitions 0/81 dead transitions. [2022-12-06 16:01:10,281 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 81 transitions, 322 flow [2022-12-06 16:01:10,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:01:10,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:01:10,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 497 transitions. [2022-12-06 16:01:10,283 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5712643678160919 [2022-12-06 16:01:10,284 INFO L294 CegarLoopForPetriNet]: 76 programPoint places, 18 predicate places. [2022-12-06 16:01:10,284 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 81 transitions, 322 flow [2022-12-06 16:01:10,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 48.3) internal successors, (483), 10 states have internal predecessors, (483), 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) [2022-12-06 16:01:10,285 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:01:10,285 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:01:10,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:01:10,285 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:01:10,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:01:10,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1164383402, now seen corresponding path program 1 times [2022-12-06 16:01:10,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:01:10,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120023442] [2022-12-06 16:01:10,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:01:10,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:01:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:01:10,655 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:10,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:01:10,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120023442] [2022-12-06 16:01:10,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120023442] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:01:10,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830826805] [2022-12-06 16:01:10,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:01:10,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:01:10,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:01:10,659 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) [2022-12-06 16:01:10,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 16:01:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:01:10,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 44 conjunts are in the unsatisfiable core [2022-12-06 16:01:10,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:01:10,832 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:01:10,833 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:01:10,859 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:01:10,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2022-12-06 16:01:10,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:10,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:11,158 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 16:01:11,164 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-06 16:01:11,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 20 [2022-12-06 16:01:11,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:11,252 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 16:01:11,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2022-12-06 16:01:11,314 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 16:01:11,314 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 22 treesize of output 10 [2022-12-06 16:01:11,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:11,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 16:01:12,118 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:12,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830826805] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 16:01:12,118 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 16:01:12,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 20, 18] total 44 [2022-12-06 16:01:12,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794545751] [2022-12-06 16:01:12,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 16:01:12,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-12-06 16:01:12,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:01:12,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-12-06 16:01:12,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1737, Unknown=0, NotChecked=0, Total=1892 [2022-12-06 16:01:12,121 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 87 [2022-12-06 16:01:12,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 81 transitions, 322 flow. Second operand has 44 states, 44 states have (on average 31.0) internal successors, (1364), 44 states have internal predecessors, (1364), 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) [2022-12-06 16:01:12,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:01:12,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 87 [2022-12-06 16:01:12,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:01:14,263 INFO L130 PetriNetUnfolder]: 36/202 cut-off events. [2022-12-06 16:01:14,264 INFO L131 PetriNetUnfolder]: For 111/111 co-relation queries the response was YES. [2022-12-06 16:01:14,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 202 events. 36/202 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 530 event pairs, 2 based on Foata normal form. 2/197 useless extension candidates. Maximal degree in co-relation 420. Up to 69 conditions per place. [2022-12-06 16:01:14,265 INFO L137 encePairwiseOnDemand]: 68/87 looper letters, 59 selfloop transitions, 19 changer transitions 20/121 dead transitions. [2022-12-06 16:01:14,265 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 121 transitions, 692 flow [2022-12-06 16:01:14,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-12-06 16:01:14,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-12-06 16:01:14,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 855 transitions. [2022-12-06 16:01:14,271 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.36398467432950193 [2022-12-06 16:01:14,271 INFO L294 CegarLoopForPetriNet]: 76 programPoint places, 44 predicate places. [2022-12-06 16:01:14,271 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 121 transitions, 692 flow [2022-12-06 16:01:14,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 31.0) internal successors, (1364), 44 states have internal predecessors, (1364), 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) [2022-12-06 16:01:14,272 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:01:14,273 INFO L213 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:01:14,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-06 16:01:14,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:01:14,479 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:01:14,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:01:14,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1177272750, now seen corresponding path program 2 times [2022-12-06 16:01:14,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:01:14,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378534325] [2022-12-06 16:01:14,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:01:14,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:01:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:01:15,129 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:15,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:01:15,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378534325] [2022-12-06 16:01:15,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378534325] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:01:15,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979360429] [2022-12-06 16:01:15,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 16:01:15,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:01:15,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:01:15,144 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) [2022-12-06 16:01:15,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 16:01:15,279 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 16:01:15,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:01:15,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-06 16:01:15,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:01:15,349 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:01:15,350 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:01:15,407 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-06 16:01:15,408 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-06 16:01:15,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:15,577 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 16:01:15,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2022-12-06 16:01:15,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:15,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:15,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:15,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:15,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:15,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-06 16:01:15,991 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:15,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 16:01:16,137 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_117 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_117) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset14#1| 2 |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset|)))) is different from false [2022-12-06 16:01:16,217 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_117 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_117) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset14#1| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset| 4)))) is different from false [2022-12-06 16:01:16,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 486 treesize of output 466 [2022-12-06 16:01:16,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 462 treesize of output 430 [2022-12-06 16:01:16,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 430 treesize of output 414 [2022-12-06 16:01:16,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 203 [2022-12-06 16:01:17,348 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 26 not checked. [2022-12-06 16:01:17,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979360429] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 16:01:17,348 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 16:01:17,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 18] total 48 [2022-12-06 16:01:17,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706133425] [2022-12-06 16:01:17,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 16:01:17,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-06 16:01:17,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:01:17,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-06 16:01:17,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1874, Unknown=24, NotChecked=178, Total=2256 [2022-12-06 16:01:17,351 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2022-12-06 16:01:17,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 121 transitions, 692 flow. Second operand has 48 states, 48 states have (on average 39.979166666666664) internal successors, (1919), 48 states have internal predecessors, (1919), 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) [2022-12-06 16:01:17,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:01:17,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2022-12-06 16:01:17,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:01:26,268 INFO L130 PetriNetUnfolder]: 40/290 cut-off events. [2022-12-06 16:01:26,268 INFO L131 PetriNetUnfolder]: For 266/268 co-relation queries the response was YES. [2022-12-06 16:01:26,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 985 conditions, 290 events. 40/290 cut-off events. For 266/268 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 992 event pairs, 1 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 823. Up to 112 conditions per place. [2022-12-06 16:01:26,272 INFO L137 encePairwiseOnDemand]: 71/87 looper letters, 83 selfloop transitions, 36 changer transitions 32/179 dead transitions. [2022-12-06 16:01:26,272 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 179 transitions, 1355 flow [2022-12-06 16:01:26,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-06 16:01:26,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-12-06 16:01:26,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1285 transitions. [2022-12-06 16:01:26,279 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4764553207267334 [2022-12-06 16:01:26,281 INFO L294 CegarLoopForPetriNet]: 76 programPoint places, 74 predicate places. [2022-12-06 16:01:26,281 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 179 transitions, 1355 flow [2022-12-06 16:01:26,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 39.979166666666664) internal successors, (1919), 48 states have internal predecessors, (1919), 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) [2022-12-06 16:01:26,287 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:01:26,287 INFO L213 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:01:26,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-06 16:01:26,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:01:26,493 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:01:26,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:01:26,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1326840006, now seen corresponding path program 3 times [2022-12-06 16:01:26,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:01:26,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030418133] [2022-12-06 16:01:26,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:01:26,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:01:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:01:27,178 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:27,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:01:27,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030418133] [2022-12-06 16:01:27,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030418133] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 16:01:27,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331985388] [2022-12-06 16:01:27,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 16:01:27,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:01:27,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:01:27,181 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) [2022-12-06 16:01:27,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 16:01:27,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-06 16:01:27,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 16:01:27,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 61 conjunts are in the unsatisfiable core [2022-12-06 16:01:27,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 16:01:27,509 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-06 16:01:27,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-12-06 16:01:27,583 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-12-06 16:01:27,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-12-06 16:01:27,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:27,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 16:01:27,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 16:01:27,976 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-06 16:01:27,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 20 [2022-12-06 16:01:28,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:28,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:28,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 16:01:28,084 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 16:01:28,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-12-06 16:01:28,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:28,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:28,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 16:01:28,181 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 16:01:28,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-12-06 16:01:28,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:28,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:28,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 16:01:28,287 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 16:01:28,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-12-06 16:01:28,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:28,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:28,400 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 16:01:28,403 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 16:01:28,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-12-06 16:01:28,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 16:01:28,520 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 16:01:28,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-12-06 16:01:28,630 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-06 16:01:28,630 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 22 treesize of output 10 [2022-12-06 16:01:28,747 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 18 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:01:28,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 16:03:49,295 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 16:03:49,295 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 654 treesize of output 644 [2022-12-06 16:03:49,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2854 treesize of output 2830 [2022-12-06 16:03:49,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3938 treesize of output 3912 [2022-12-06 16:04:07,949 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 26 proven. 15 refuted. 10 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-06 16:04:07,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331985388] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 16:04:07,949 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 16:04:07,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 26, 25] total 63 [2022-12-06 16:04:07,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852929463] [2022-12-06 16:04:07,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 16:04:07,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-12-06 16:04:07,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:04:07,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-12-06 16:04:07,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=3532, Unknown=69, NotChecked=0, Total=3906 [2022-12-06 16:04:07,955 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 87 [2022-12-06 16:04:07,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 179 transitions, 1355 flow. Second operand has 63 states, 63 states have (on average 29.96825396825397) internal successors, (1888), 63 states have internal predecessors, (1888), 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) [2022-12-06 16:04:07,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:04:07,960 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 87 [2022-12-06 16:04:07,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:04:11,106 INFO L130 PetriNetUnfolder]: 44/302 cut-off events. [2022-12-06 16:04:11,107 INFO L131 PetriNetUnfolder]: For 376/380 co-relation queries the response was YES. [2022-12-06 16:04:11,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1285 conditions, 302 events. 44/302 cut-off events. For 376/380 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1040 event pairs, 1 based on Foata normal form. 2/293 useless extension candidates. Maximal degree in co-relation 1090. Up to 128 conditions per place. [2022-12-06 16:04:11,108 INFO L137 encePairwiseOnDemand]: 66/87 looper letters, 0 selfloop transitions, 0 changer transitions 187/187 dead transitions. [2022-12-06 16:04:11,108 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 187 transitions, 1761 flow [2022-12-06 16:04:11,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-06 16:04:11,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-12-06 16:04:11,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 1052 transitions. [2022-12-06 16:04:11,110 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.34548440065681446 [2022-12-06 16:04:11,110 INFO L294 CegarLoopForPetriNet]: 76 programPoint places, 106 predicate places. [2022-12-06 16:04:11,111 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 187 transitions, 1761 flow [2022-12-06 16:04:11,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 29.96825396825397) internal successors, (1888), 63 states have internal predecessors, (1888), 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) [2022-12-06 16:04:11,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 16:04:11,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 16:04:11,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-06 16:04:11,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-06 16:04:11,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 16:04:11,319 INFO L458 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2022-12-06 16:04:11,321 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:04:11,321 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:04:11,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:04:11 BasicIcfg [2022-12-06 16:04:11,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:04:11,324 INFO L158 Benchmark]: Toolchain (without parser) took 184447.89ms. Allocated memory was 230.7MB in the beginning and 599.8MB in the end (delta: 369.1MB). Free memory was 205.2MB in the beginning and 418.5MB in the end (delta: -213.3MB). Peak memory consumption was 157.0MB. Max. memory is 8.0GB. [2022-12-06 16:04:11,324 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 230.7MB. Free memory was 206.8MB in the beginning and 206.7MB in the end (delta: 152.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:04:11,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 768.63ms. Allocated memory is still 230.7MB. Free memory was 204.6MB in the beginning and 173.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-12-06 16:04:11,324 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.71ms. Allocated memory is still 230.7MB. Free memory was 173.1MB in the beginning and 171.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:04:11,325 INFO L158 Benchmark]: Boogie Preprocessor took 43.43ms. Allocated memory is still 230.7MB. Free memory was 170.5MB in the beginning and 169.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:04:11,325 INFO L158 Benchmark]: RCFGBuilder took 410.63ms. Allocated memory is still 230.7MB. Free memory was 169.0MB in the beginning and 154.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 16:04:11,325 INFO L158 Benchmark]: TraceAbstraction took 183173.84ms. Allocated memory was 230.7MB in the beginning and 599.8MB in the end (delta: 369.1MB). Free memory was 153.8MB in the beginning and 418.5MB in the end (delta: -264.7MB). Peak memory consumption was 105.6MB. Max. memory is 8.0GB. [2022-12-06 16:04:11,326 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 230.7MB. Free memory was 206.8MB in the beginning and 206.7MB in the end (delta: 152.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 768.63ms. Allocated memory is still 230.7MB. Free memory was 204.6MB in the beginning and 173.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.71ms. Allocated memory is still 230.7MB. Free memory was 173.1MB in the beginning and 171.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.43ms. Allocated memory is still 230.7MB. Free memory was 170.5MB in the beginning and 169.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 410.63ms. Allocated memory is still 230.7MB. Free memory was 169.0MB in the beginning and 154.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 183173.84ms. Allocated memory was 230.7MB in the beginning and 599.8MB in the end (delta: 369.1MB). Free memory was 153.8MB in the beginning and 418.5MB in the end (delta: -264.7MB). Peak memory consumption was 105.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1107]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 108 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 183.0s, OverallIterations: 6, TraceHistogramMax: 6, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 14.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 18 mSolverCounterUnknown, 3015 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3015 mSDsluCounter, 1058 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 212 IncrementalHoareTripleChecker+Unchecked, 964 mSDsCounter, 502 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4002 IncrementalHoareTripleChecker+Invalid, 4734 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 502 mSolverCounterUnsat, 94 mSDtfsCounter, 4002 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 662 GetRequests, 398 SyntacticMatches, 13 SemanticMatches, 251 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 3861 ImplicationChecksByTransitivity, 154.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1761occurred in iteration=6, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 166.6s InterpolantComputationTime, 678 NumberOfCodeBlocks, 678 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 910 ConstructedInterpolants, 138 QuantifiedInterpolants, 13472 SizeOfPredicates, 48 NumberOfNonLiveVariables, 699 ConjunctsInSsa, 145 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 48/282 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 16:04:11,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...