/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:13:42,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:13:42,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:13:42,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:13:42,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:13:42,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:13:42,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:13:42,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:13:42,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:13:42,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:13:42,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:13:42,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:13:42,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:13:42,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:13:42,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:13:42,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:13:42,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:13:42,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:13:42,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:13:42,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:13:42,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:13:42,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:13:42,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:13:42,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:13:42,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:13:42,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:13:42,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:13:42,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:13:42,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:13:42,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 20:13:42,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 20:13:42,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 20:13:42,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 20:13:42,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 20:13:42,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 20:13:42,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 20:13:42,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 20:13:42,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 20:13:42,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:13:42,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:13:42,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:13:42,117 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-05 20:13:42,142 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:13:42,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:13:42,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:13:42,143 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:13:42,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:13:42,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:13:42,144 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:13:42,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:13:42,145 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:13:42,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:13:42,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:13:42,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:13:42,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:13:42,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:13:42,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:13:42,146 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:13:42,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:13:42,146 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:13:42,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:13:42,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:13:42,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:13:42,146 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:13:42,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:13:42,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:13:42,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:13:42,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:13:42,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:13:42,147 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:13:42,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:13:42,147 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:13:42,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:13:42,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:13:42,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:13:42,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:13:42,426 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:13:42,426 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:13:42,427 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2022-12-05 20:13:43,416 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:13:43,648 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:13:43,648 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2022-12-05 20:13:43,660 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d426e5e45/81adafbaa91b4cc48f3393f90cd5d785/FLAGc586048bb [2022-12-05 20:13:43,670 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d426e5e45/81adafbaa91b4cc48f3393f90cd5d785 [2022-12-05 20:13:43,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:13:43,673 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:13:43,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:13:43,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:13:43,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:13:43,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:13:43" (1/1) ... [2022-12-05 20:13:43,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6828ba00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:13:43, skipping insertion in model container [2022-12-05 20:13:43,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:13:43" (1/1) ... [2022-12-05 20:13:43,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:13:43,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:13:44,082 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/sync01.i[42004,42017] [2022-12-05 20:13:44,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:13:44,096 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:13:44,128 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/sync01.i[42004,42017] [2022-12-05 20:13:44,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:13:44,175 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:13:44,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:13:44 WrapperNode [2022-12-05 20:13:44,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:13:44,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:13:44,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:13:44,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:13:44,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:13:44" (1/1) ... [2022-12-05 20:13:44,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:13:44" (1/1) ... [2022-12-05 20:13:44,219 INFO L138 Inliner]: procedures = 268, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-12-05 20:13:44,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:13:44,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:13:44,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:13:44,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:13:44,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:13:44" (1/1) ... [2022-12-05 20:13:44,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:13:44" (1/1) ... [2022-12-05 20:13:44,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:13:44" (1/1) ... [2022-12-05 20:13:44,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:13:44" (1/1) ... [2022-12-05 20:13:44,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:13:44" (1/1) ... [2022-12-05 20:13:44,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:13:44" (1/1) ... [2022-12-05 20:13:44,235 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:13:44" (1/1) ... [2022-12-05 20:13:44,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:13:44" (1/1) ... [2022-12-05 20:13:44,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:13:44,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:13:44,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:13:44,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:13:44,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:13:44" (1/1) ... [2022-12-05 20:13:44,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:13:44,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:13:44,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-05 20:13:44,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-05 20:13:44,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:13:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:13:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:13:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-05 20:13:44,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-05 20:13:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-05 20:13:44,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-05 20:13:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:13:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 20:13:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:13:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:13:44,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:13:44,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:13:44,302 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:13:44,395 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:13:44,396 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:13:44,540 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:13:44,545 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:13:44,545 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-05 20:13:44,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:13:44 BoogieIcfgContainer [2022-12-05 20:13:44,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:13:44,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:13:44,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:13:44,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:13:44,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:13:43" (1/3) ... [2022-12-05 20:13:44,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754b4155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:13:44, skipping insertion in model container [2022-12-05 20:13:44,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:13:44" (2/3) ... [2022-12-05 20:13:44,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754b4155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:13:44, skipping insertion in model container [2022-12-05 20:13:44,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:13:44" (3/3) ... [2022-12-05 20:13:44,552 INFO L112 eAbstractionObserver]: Analyzing ICFG sync01.i [2022-12-05 20:13:44,564 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:13:44,564 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 20:13:44,564 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:13:44,632 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 20:13:44,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 103 transitions, 222 flow [2022-12-05 20:13:44,693 INFO L130 PetriNetUnfolder]: 5/101 cut-off events. [2022-12-05 20:13:44,693 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 20:13:44,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 101 events. 5/101 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2022-12-05 20:13:44,697 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 103 transitions, 222 flow [2022-12-05 20:13:44,700 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 91 transitions, 194 flow [2022-12-05 20:13:44,701 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:13:44,712 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 91 transitions, 194 flow [2022-12-05 20:13:44,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 91 transitions, 194 flow [2022-12-05 20:13:44,751 INFO L130 PetriNetUnfolder]: 4/91 cut-off events. [2022-12-05 20:13:44,751 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 20:13:44,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 91 events. 4/91 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2022-12-05 20:13:44,754 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 91 transitions, 194 flow [2022-12-05 20:13:44,754 INFO L188 LiptonReduction]: Number of co-enabled transitions 900 [2022-12-05 20:13:48,503 INFO L203 LiptonReduction]: Total number of compositions: 70 [2022-12-05 20:13:48,513 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:13:48,517 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;@21b6c764, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:13:48,517 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-05 20:13:48,522 INFO L130 PetriNetUnfolder]: 4/26 cut-off events. [2022-12-05 20:13:48,522 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 20:13:48,522 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:13:48,522 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:13:48,523 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 20:13:48,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:13:48,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1288908627, now seen corresponding path program 1 times [2022-12-05 20:13:48,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:13:48,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372286548] [2022-12-05 20:13:48,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:13:48,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:13:48,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:13:48,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:13:48,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:13:48,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372286548] [2022-12-05 20:13:48,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372286548] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:13:48,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:13:48,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:13:48,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276533306] [2022-12-05 20:13:48,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:13:48,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 20:13:48,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:13:48,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 20:13:48,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 20:13:48,735 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2022-12-05 20:13:48,736 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 66 flow. Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:13:48,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:13:48,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2022-12-05 20:13:48,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:13:48,783 INFO L130 PetriNetUnfolder]: 65/148 cut-off events. [2022-12-05 20:13:48,784 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-05 20:13:48,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 148 events. 65/148 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 497 event pairs, 45 based on Foata normal form. 20/150 useless extension candidates. Maximal degree in co-relation 232. Up to 117 conditions per place. [2022-12-05 20:13:48,786 INFO L137 encePairwiseOnDemand]: 25/27 looper letters, 17 selfloop transitions, 0 changer transitions 0/25 dead transitions. [2022-12-05 20:13:48,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 25 transitions, 96 flow [2022-12-05 20:13:48,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 20:13:48,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 20:13:48,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 35 transitions. [2022-12-05 20:13:48,793 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6481481481481481 [2022-12-05 20:13:48,794 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 66 flow. Second operand 2 states and 35 transitions. [2022-12-05 20:13:48,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 25 transitions, 96 flow [2022-12-05 20:13:48,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 25 transitions, 88 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 20:13:48,797 INFO L231 Difference]: Finished difference. Result has 27 places, 25 transitions, 54 flow [2022-12-05 20:13:48,798 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=54, PETRI_PLACES=27, PETRI_TRANSITIONS=25} [2022-12-05 20:13:48,801 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, -3 predicate places. [2022-12-05 20:13:48,801 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 25 transitions, 54 flow [2022-12-05 20:13:48,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:13:48,801 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:13:48,801 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:13:48,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:13:48,801 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 20:13:48,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:13:48,802 INFO L85 PathProgramCache]: Analyzing trace with hash -996490606, now seen corresponding path program 1 times [2022-12-05 20:13:48,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:13:48,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230928400] [2022-12-05 20:13:48,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:13:48,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:13:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:13:48,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:13:48,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:13:48,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230928400] [2022-12-05 20:13:48,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230928400] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:13:48,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:13:48,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:13:48,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221590251] [2022-12-05 20:13:48,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:13:48,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:13:48,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:13:48,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:13:48,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:13:48,941 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 27 [2022-12-05 20:13:48,942 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 25 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:13:48,942 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:13:48,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 27 [2022-12-05 20:13:48,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:13:48,977 INFO L130 PetriNetUnfolder]: 73/141 cut-off events. [2022-12-05 20:13:48,977 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:13:48,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 141 events. 73/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 310 event pairs, 37 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 283. Up to 71 conditions per place. [2022-12-05 20:13:48,978 INFO L137 encePairwiseOnDemand]: 23/27 looper letters, 23 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2022-12-05 20:13:48,978 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 26 transitions, 106 flow [2022-12-05 20:13:48,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:13:48,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:13:48,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2022-12-05 20:13:48,995 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4074074074074074 [2022-12-05 20:13:48,995 INFO L175 Difference]: Start difference. First operand has 27 places, 25 transitions, 54 flow. Second operand 3 states and 33 transitions. [2022-12-05 20:13:48,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 26 transitions, 106 flow [2022-12-05 20:13:48,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 26 transitions, 106 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 20:13:48,997 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 56 flow [2022-12-05 20:13:48,997 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2022-12-05 20:13:48,997 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2022-12-05 20:13:48,998 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 56 flow [2022-12-05 20:13:48,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:13:48,998 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:13:48,998 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:13:48,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:13:48,998 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 20:13:48,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:13:48,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2106470930, now seen corresponding path program 2 times [2022-12-05 20:13:48,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:13:48,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380523188] [2022-12-05 20:13:48,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:13:48,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:13:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:13:49,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:13:49,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:13:49,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380523188] [2022-12-05 20:13:49,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380523188] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:13:49,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:13:49,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:13:49,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027923500] [2022-12-05 20:13:49,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:13:49,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:13:49,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:13:49,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:13:49,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:13:49,119 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 27 [2022-12-05 20:13:49,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 56 flow. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:13:49,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:13:49,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 27 [2022-12-05 20:13:49,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:13:49,189 INFO L130 PetriNetUnfolder]: 57/124 cut-off events. [2022-12-05 20:13:49,189 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 20:13:49,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 124 events. 57/124 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 291 event pairs, 17 based on Foata normal form. 16/140 useless extension candidates. Maximal degree in co-relation 266. Up to 77 conditions per place. [2022-12-05 20:13:49,190 INFO L137 encePairwiseOnDemand]: 21/27 looper letters, 24 selfloop transitions, 6 changer transitions 0/30 dead transitions. [2022-12-05 20:13:49,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 30 transitions, 133 flow [2022-12-05 20:13:49,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 20:13:49,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 20:13:49,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2022-12-05 20:13:49,191 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3055555555555556 [2022-12-05 20:13:49,191 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 56 flow. Second operand 4 states and 33 transitions. [2022-12-05 20:13:49,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 30 transitions, 133 flow [2022-12-05 20:13:49,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 30 transitions, 129 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:13:49,192 INFO L231 Difference]: Finished difference. Result has 31 places, 25 transitions, 90 flow [2022-12-05 20:13:49,192 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=90, PETRI_PLACES=31, PETRI_TRANSITIONS=25} [2022-12-05 20:13:49,193 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places. [2022-12-05 20:13:49,193 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 25 transitions, 90 flow [2022-12-05 20:13:49,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:13:49,193 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:13:49,193 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:13:49,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:13:49,193 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 20:13:49,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:13:49,194 INFO L85 PathProgramCache]: Analyzing trace with hash 617295816, now seen corresponding path program 3 times [2022-12-05 20:13:49,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:13:49,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116861934] [2022-12-05 20:13:49,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:13:49,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:13:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:13:49,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:13:49,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:13:49,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116861934] [2022-12-05 20:13:49,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116861934] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:13:49,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:13:49,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:13:49,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120368189] [2022-12-05 20:13:49,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:13:49,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 20:13:49,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:13:49,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 20:13:49,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 20:13:49,285 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 27 [2022-12-05 20:13:49,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:13:49,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:13:49,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 27 [2022-12-05 20:13:49,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:13:49,358 INFO L130 PetriNetUnfolder]: 33/86 cut-off events. [2022-12-05 20:13:49,358 INFO L131 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2022-12-05 20:13:49,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 86 events. 33/86 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 180 event pairs, 3 based on Foata normal form. 4/90 useless extension candidates. Maximal degree in co-relation 234. Up to 36 conditions per place. [2022-12-05 20:13:49,359 INFO L137 encePairwiseOnDemand]: 19/27 looper letters, 20 selfloop transitions, 11 changer transitions 0/31 dead transitions. [2022-12-05 20:13:49,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 31 transitions, 165 flow [2022-12-05 20:13:49,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 20:13:49,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 20:13:49,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2022-12-05 20:13:49,362 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.24444444444444444 [2022-12-05 20:13:49,363 INFO L175 Difference]: Start difference. First operand has 31 places, 25 transitions, 90 flow. Second operand 5 states and 33 transitions. [2022-12-05 20:13:49,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 31 transitions, 165 flow [2022-12-05 20:13:49,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 31 transitions, 161 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:13:49,364 INFO L231 Difference]: Finished difference. Result has 33 places, 25 transitions, 108 flow [2022-12-05 20:13:49,365 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=108, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2022-12-05 20:13:49,366 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 3 predicate places. [2022-12-05 20:13:49,366 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 108 flow [2022-12-05 20:13:49,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:13:49,366 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:13:49,366 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:13:49,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 20:13:49,366 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 20:13:49,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:13:49,368 INFO L85 PathProgramCache]: Analyzing trace with hash -468918444, now seen corresponding path program 4 times [2022-12-05 20:13:49,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:13:49,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576407698] [2022-12-05 20:13:49,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:13:49,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:13:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:13:49,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:13:49,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:13:49,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576407698] [2022-12-05 20:13:49,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576407698] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:13:49,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:13:49,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-05 20:13:49,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860873576] [2022-12-05 20:13:49,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:13:49,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 20:13:49,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:13:49,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 20:13:49,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 20:13:49,514 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 27 [2022-12-05 20:13:49,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 108 flow. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:13:49,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:13:49,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 27 [2022-12-05 20:13:49,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:13:49,586 INFO L130 PetriNetUnfolder]: 27/76 cut-off events. [2022-12-05 20:13:49,586 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-12-05 20:13:49,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 76 events. 27/76 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 152 event pairs, 12 based on Foata normal form. 3/77 useless extension candidates. Maximal degree in co-relation 228. Up to 44 conditions per place. [2022-12-05 20:13:49,588 INFO L137 encePairwiseOnDemand]: 20/27 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2022-12-05 20:13:49,588 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 26 transitions, 156 flow [2022-12-05 20:13:49,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 20:13:49,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 20:13:49,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 39 transitions. [2022-12-05 20:13:49,590 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.24074074074074073 [2022-12-05 20:13:49,590 INFO L175 Difference]: Start difference. First operand has 33 places, 25 transitions, 108 flow. Second operand 6 states and 39 transitions. [2022-12-05 20:13:49,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 26 transitions, 156 flow [2022-12-05 20:13:49,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 26 transitions, 118 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-12-05 20:13:49,593 INFO L231 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2022-12-05 20:13:49,593 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2022-12-05 20:13:49,594 INFO L294 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places. [2022-12-05 20:13:49,595 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 0 transitions, 0 flow [2022-12-05 20:13:49,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:13:49,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-05 20:13:49,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-05 20:13:49,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-05 20:13:49,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 20:13:49,601 INFO L458 BasicCegarLoop]: Path program histogram: [4, 1] [2022-12-05 20:13:49,604 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:13:49,604 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:13:49,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:13:49 BasicIcfg [2022-12-05 20:13:49,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:13:49,607 INFO L158 Benchmark]: Toolchain (without parser) took 5934.99ms. Allocated memory was 190.8MB in the beginning and 229.6MB in the end (delta: 38.8MB). Free memory was 166.1MB in the beginning and 83.2MB in the end (delta: 82.9MB). Peak memory consumption was 122.0MB. Max. memory is 8.0GB. [2022-12-05 20:13:49,609 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 190.8MB. Free memory was 167.2MB in the beginning and 167.2MB in the end (delta: 75.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:13:49,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 503.22ms. Allocated memory is still 190.8MB. Free memory was 165.9MB in the beginning and 137.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-12-05 20:13:49,616 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.41ms. Allocated memory is still 190.8MB. Free memory was 137.6MB in the beginning and 135.0MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-05 20:13:49,616 INFO L158 Benchmark]: Boogie Preprocessor took 17.95ms. Allocated memory is still 190.8MB. Free memory was 135.0MB in the beginning and 133.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 20:13:49,616 INFO L158 Benchmark]: RCFGBuilder took 307.61ms. Allocated memory is still 190.8MB. Free memory was 133.4MB in the beginning and 117.7MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-12-05 20:13:49,616 INFO L158 Benchmark]: TraceAbstraction took 5059.24ms. Allocated memory was 190.8MB in the beginning and 229.6MB in the end (delta: 38.8MB). Free memory was 117.2MB in the beginning and 83.2MB in the end (delta: 33.9MB). Peak memory consumption was 72.7MB. Max. memory is 8.0GB. [2022-12-05 20:13:49,618 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 190.8MB. Free memory was 167.2MB in the beginning and 167.2MB in the end (delta: 75.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 503.22ms. Allocated memory is still 190.8MB. Free memory was 165.9MB in the beginning and 137.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.41ms. Allocated memory is still 190.8MB. Free memory was 137.6MB in the beginning and 135.0MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.95ms. Allocated memory is still 190.8MB. Free memory was 135.0MB in the beginning and 133.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 307.61ms. Allocated memory is still 190.8MB. Free memory was 133.4MB in the beginning and 117.7MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 5059.24ms. Allocated memory was 190.8MB in the beginning and 229.6MB in the end (delta: 38.8MB). Free memory was 117.2MB in the beginning and 83.2MB in the end (delta: 33.9MB). Peak memory consumption was 72.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 94 PlacesBefore, 30 PlacesAfterwards, 91 TransitionsBefore, 27 TransitionsAfterwards, 900 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 45 TrivialYvCompositions, 19 ConcurrentYvCompositions, 0 ChoiceCompositions, 70 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 932, independent: 842, independent conditional: 842, independent unconditional: 0, dependent: 90, dependent conditional: 90, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 932, independent: 842, independent conditional: 0, independent unconditional: 842, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 932, independent: 842, independent conditional: 0, independent unconditional: 842, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 932, independent: 842, independent conditional: 0, independent unconditional: 842, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 568, independent: 534, independent conditional: 0, independent unconditional: 534, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 568, independent: 506, independent conditional: 0, independent unconditional: 506, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 62, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 102, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 932, independent: 308, independent conditional: 0, independent unconditional: 308, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 568, unknown conditional: 0, unknown unconditional: 568] , Statistics on independence cache: Total cache size (in pairs): 814, Positive cache size: 780, Positive conditional cache size: 0, Positive unconditional cache size: 780, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 966]: 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, 129 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: 5.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 297 IncrementalHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 6 mSDtfsCounter, 297 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=4, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 195 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 20:13:49,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...