/usr/bin/java -Xmx16000000000 -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-After.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 11:21:52,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 11:21:52,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 11:21:52,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 11:21:52,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 11:21:52,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 11:21:52,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 11:21:52,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 11:21:52,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 11:21:52,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 11:21:52,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 11:21:52,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 11:21:52,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 11:21:52,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 11:21:52,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 11:21:52,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 11:21:52,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 11:21:52,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 11:21:52,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 11:21:52,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 11:21:52,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 11:21:52,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 11:21:52,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 11:21:52,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 11:21:52,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 11:21:52,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 11:21:52,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 11:21:52,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 11:21:52,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 11:21:52,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 11:21:52,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 11:21:52,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 11:21:52,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 11:21:52,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 11:21:52,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 11:21:52,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 11:21:52,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 11:21:52,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 11:21:52,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 11:21:52,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 11:21:52,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 11:21:52,943 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-After.epf [2022-01-19 11:21:52,956 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 11:21:52,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 11:21:52,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 11:21:52,957 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 11:21:52,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 11:21:52,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 11:21:52,958 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 11:21:52,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 11:21:52,958 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 11:21:52,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 11:21:52,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 11:21:52,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 11:21:52,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 11:21:52,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 11:21:52,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 11:21:52,959 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 11:21:52,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 11:21:52,959 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 11:21:52,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 11:21:52,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 11:21:52,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 11:21:52,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 11:21:52,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 11:21:52,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:21:52,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 11:21:52,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 11:21:52,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 11:21:52,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 11:21:52,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 11:21:52,961 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 11:21:52,961 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 11:21:52,961 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 11:21:52,961 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 11:21:53,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 11:21:53,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 11:21:53,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 11:21:53,121 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 11:21:53,121 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 11:21:53,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.i [2022-01-19 11:21:53,158 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d90f684e/71b63b533ab448e9b0d247be0a0e70a3/FLAGee872a7ab [2022-01-19 11:21:53,536 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 11:21:53,537 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.i [2022-01-19 11:21:53,557 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d90f684e/71b63b533ab448e9b0d247be0a0e70a3/FLAGee872a7ab [2022-01-19 11:21:53,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d90f684e/71b63b533ab448e9b0d247be0a0e70a3 [2022-01-19 11:21:53,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 11:21:53,569 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 11:21:53,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 11:21:53,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 11:21:53,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 11:21:53,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:21:53" (1/1) ... [2022-01-19 11:21:53,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e7353b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:21:53, skipping insertion in model container [2022-01-19 11:21:53,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:21:53" (1/1) ... [2022-01-19 11:21:53,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 11:21:53,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 11:21:53,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.i[945,958] [2022-01-19 11:21:53,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:21:53,941 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 11:21:53,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.i[945,958] [2022-01-19 11:21:53,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:21:54,011 INFO L208 MainTranslator]: Completed translation [2022-01-19 11:21:54,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:21:54 WrapperNode [2022-01-19 11:21:54,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 11:21:54,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 11:21:54,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 11:21:54,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 11:21:54,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:21:54" (1/1) ... [2022-01-19 11:21:54,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:21:54" (1/1) ... [2022-01-19 11:21:54,055 INFO L137 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-01-19 11:21:54,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 11:21:54,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 11:21:54,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 11:21:54,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 11:21:54,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:21:54" (1/1) ... [2022-01-19 11:21:54,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:21:54" (1/1) ... [2022-01-19 11:21:54,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:21:54" (1/1) ... [2022-01-19 11:21:54,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:21:54" (1/1) ... [2022-01-19 11:21:54,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:21:54" (1/1) ... [2022-01-19 11:21:54,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:21:54" (1/1) ... [2022-01-19 11:21:54,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:21:54" (1/1) ... [2022-01-19 11:21:54,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 11:21:54,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 11:21:54,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 11:21:54,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 11:21:54,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:21:54" (1/1) ... [2022-01-19 11:21:54,091 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:21:54,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 11:21:54,123 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) [2022-01-19 11:21:54,145 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 [2022-01-19 11:21:54,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 11:21:54,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 11:21:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 11:21:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 11:21:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 11:21:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-01-19 11:21:54,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-01-19 11:21:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-01-19 11:21:54,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-01-19 11:21:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 11:21:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 11:21:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 11:21:54,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 11:21:54,175 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 11:21:54,249 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 11:21:54,250 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 11:21:54,329 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 11:21:54,333 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 11:21:54,333 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 11:21:54,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:21:54 BoogieIcfgContainer [2022-01-19 11:21:54,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 11:21:54,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 11:21:54,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 11:21:54,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 11:21:54,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 11:21:53" (1/3) ... [2022-01-19 11:21:54,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a7fd64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:21:54, skipping insertion in model container [2022-01-19 11:21:54,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:21:54" (2/3) ... [2022-01-19 11:21:54,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a7fd64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:21:54, skipping insertion in model container [2022-01-19 11:21:54,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:21:54" (3/3) ... [2022-01-19 11:21:54,339 INFO L111 eAbstractionObserver]: Analyzing ICFG safe029_tso.i [2022-01-19 11:21:54,342 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 11:21:54,342 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 11:21:54,342 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 11:21:54,361 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,361 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,361 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,361 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,362 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,362 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,362 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,362 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,362 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,362 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,363 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,363 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,363 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,363 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,363 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,363 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,363 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,364 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,364 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,364 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,364 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,364 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,365 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,365 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,366 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,367 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,367 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,367 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,368 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,368 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,369 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,369 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:21:54,369 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 11:21:54,396 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 11:21:54,400 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 11:21:54,400 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-19 11:21:54,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 73 transitions, 156 flow [2022-01-19 11:21:54,433 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2022-01-19 11:21:54,434 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 11:21:54,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2022-01-19 11:21:54,436 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 73 transitions, 156 flow [2022-01-19 11:21:54,439 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 59 transitions, 124 flow [2022-01-19 11:21:54,465 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2022-01-19 11:21:54,465 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 11:21:54,465 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:21:54,466 INFO L254 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] [2022-01-19 11:21:54,466 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 11:21:54,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:21:54,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1914735552, now seen corresponding path program 1 times [2022-01-19 11:21:54,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:21:54,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824761844] [2022-01-19 11:21:54,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:21:54,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:21:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:21:54,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:21:54,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:21:54,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824761844] [2022-01-19 11:21:54,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824761844] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:21:54,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:21:54,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:21:54,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598152337] [2022-01-19 11:21:54,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:21:54,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:21:54,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:21:54,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:21:54,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:21:54,896 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 73 [2022-01-19 11:21:54,902 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 124 flow. Second operand has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 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) [2022-01-19 11:21:54,902 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:21:54,902 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 73 [2022-01-19 11:21:54,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:21:55,104 INFO L129 PetriNetUnfolder]: 25/141 cut-off events. [2022-01-19 11:21:55,104 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 11:21:55,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 141 events. 25/141 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 419 event pairs, 5 based on Foata normal form. 6/144 useless extension candidates. Maximal degree in co-relation 184. Up to 33 conditions per place. [2022-01-19 11:21:55,107 INFO L132 encePairwiseOnDemand]: 65/73 looper letters, 11 selfloop transitions, 3 changer transitions 19/80 dead transitions. [2022-01-19 11:21:55,107 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 80 transitions, 235 flow [2022-01-19 11:21:55,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 11:21:55,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 11:21:55,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 559 transitions. [2022-01-19 11:21:55,125 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8508371385083714 [2022-01-19 11:21:55,126 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 559 transitions. [2022-01-19 11:21:55,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 559 transitions. [2022-01-19 11:21:55,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:21:55,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 559 transitions. [2022-01-19 11:21:55,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 62.111111111111114) internal successors, (559), 9 states have internal predecessors, (559), 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) [2022-01-19 11:21:55,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 73.0) internal successors, (730), 10 states have internal predecessors, (730), 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) [2022-01-19 11:21:55,143 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 73.0) internal successors, (730), 10 states have internal predecessors, (730), 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) [2022-01-19 11:21:55,144 INFO L186 Difference]: Start difference. First operand has 65 places, 59 transitions, 124 flow. Second operand 9 states and 559 transitions. [2022-01-19 11:21:55,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 80 transitions, 235 flow [2022-01-19 11:21:55,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 80 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 11:21:55,153 INFO L242 Difference]: Finished difference. Result has 78 places, 60 transitions, 163 flow [2022-01-19 11:21:55,155 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=163, PETRI_PLACES=78, PETRI_TRANSITIONS=60} [2022-01-19 11:21:55,158 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, 13 predicate places. [2022-01-19 11:21:55,161 INFO L470 AbstractCegarLoop]: Abstraction has has 78 places, 60 transitions, 163 flow [2022-01-19 11:21:55,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 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) [2022-01-19 11:21:55,166 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:21:55,166 INFO L254 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] [2022-01-19 11:21:55,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 11:21:55,167 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 11:21:55,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:21:55,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1621031519, now seen corresponding path program 1 times [2022-01-19 11:21:55,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:21:55,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188202459] [2022-01-19 11:21:55,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:21:55,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:21:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:21:55,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:21:55,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:21:55,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188202459] [2022-01-19 11:21:55,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188202459] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:21:55,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:21:55,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:21:55,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722654402] [2022-01-19 11:21:55,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:21:55,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:21:55,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:21:55,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:21:55,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:21:55,276 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 73 [2022-01-19 11:21:55,277 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 60 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 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) [2022-01-19 11:21:55,277 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:21:55,277 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 73 [2022-01-19 11:21:55,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:21:55,404 INFO L129 PetriNetUnfolder]: 48/205 cut-off events. [2022-01-19 11:21:55,404 INFO L130 PetriNetUnfolder]: For 179/188 co-relation queries the response was YES. [2022-01-19 11:21:55,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 205 events. 48/205 cut-off events. For 179/188 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 764 event pairs, 18 based on Foata normal form. 6/201 useless extension candidates. Maximal degree in co-relation 420. Up to 53 conditions per place. [2022-01-19 11:21:55,408 INFO L132 encePairwiseOnDemand]: 66/73 looper letters, 11 selfloop transitions, 3 changer transitions 19/82 dead transitions. [2022-01-19 11:21:55,409 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 82 transitions, 293 flow [2022-01-19 11:21:55,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 11:21:55,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 11:21:55,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 557 transitions. [2022-01-19 11:21:55,411 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.84779299847793 [2022-01-19 11:21:55,411 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 557 transitions. [2022-01-19 11:21:55,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 557 transitions. [2022-01-19 11:21:55,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:21:55,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 557 transitions. [2022-01-19 11:21:55,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 61.888888888888886) internal successors, (557), 9 states have internal predecessors, (557), 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) [2022-01-19 11:21:55,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 73.0) internal successors, (730), 10 states have internal predecessors, (730), 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) [2022-01-19 11:21:55,414 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 73.0) internal successors, (730), 10 states have internal predecessors, (730), 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) [2022-01-19 11:21:55,414 INFO L186 Difference]: Start difference. First operand has 78 places, 60 transitions, 163 flow. Second operand 9 states and 557 transitions. [2022-01-19 11:21:55,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 82 transitions, 293 flow [2022-01-19 11:21:55,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 82 transitions, 276 flow, removed 7 selfloop flow, removed 4 redundant places. [2022-01-19 11:21:55,420 INFO L242 Difference]: Finished difference. Result has 83 places, 62 transitions, 197 flow [2022-01-19 11:21:55,420 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=197, PETRI_PLACES=83, PETRI_TRANSITIONS=62} [2022-01-19 11:21:55,421 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, 18 predicate places. [2022-01-19 11:21:55,421 INFO L470 AbstractCegarLoop]: Abstraction has has 83 places, 62 transitions, 197 flow [2022-01-19 11:21:55,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 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) [2022-01-19 11:21:55,422 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:21:55,422 INFO L254 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] [2022-01-19 11:21:55,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 11:21:55,422 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 11:21:55,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:21:55,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1805626031, now seen corresponding path program 1 times [2022-01-19 11:21:55,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:21:55,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690927966] [2022-01-19 11:21:55,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:21:55,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:21:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:21:55,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:21:55,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:21:55,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690927966] [2022-01-19 11:21:55,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690927966] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:21:55,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:21:55,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:21:55,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860073285] [2022-01-19 11:21:55,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:21:55,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:21:55,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:21:55,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:21:55,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:21:55,512 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 73 [2022-01-19 11:21:55,512 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 62 transitions, 197 flow. Second operand has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 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) [2022-01-19 11:21:55,513 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:21:55,513 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 73 [2022-01-19 11:21:55,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:21:55,623 INFO L129 PetriNetUnfolder]: 29/214 cut-off events. [2022-01-19 11:21:55,623 INFO L130 PetriNetUnfolder]: For 394/414 co-relation queries the response was YES. [2022-01-19 11:21:55,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 214 events. 29/214 cut-off events. For 394/414 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 953 event pairs, 13 based on Foata normal form. 5/205 useless extension candidates. Maximal degree in co-relation 517. Up to 35 conditions per place. [2022-01-19 11:21:55,625 INFO L132 encePairwiseOnDemand]: 67/73 looper letters, 15 selfloop transitions, 3 changer transitions 10/77 dead transitions. [2022-01-19 11:21:55,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 77 transitions, 355 flow [2022-01-19 11:21:55,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 11:21:55,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 11:21:55,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 551 transitions. [2022-01-19 11:21:55,627 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8386605783866058 [2022-01-19 11:21:55,627 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 551 transitions. [2022-01-19 11:21:55,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 551 transitions. [2022-01-19 11:21:55,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:21:55,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 551 transitions. [2022-01-19 11:21:55,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 61.22222222222222) internal successors, (551), 9 states have internal predecessors, (551), 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) [2022-01-19 11:21:55,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 73.0) internal successors, (730), 10 states have internal predecessors, (730), 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) [2022-01-19 11:21:55,630 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 73.0) internal successors, (730), 10 states have internal predecessors, (730), 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) [2022-01-19 11:21:55,630 INFO L186 Difference]: Start difference. First operand has 83 places, 62 transitions, 197 flow. Second operand 9 states and 551 transitions. [2022-01-19 11:21:55,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 77 transitions, 355 flow [2022-01-19 11:21:55,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 77 transitions, 324 flow, removed 14 selfloop flow, removed 4 redundant places. [2022-01-19 11:21:55,677 INFO L242 Difference]: Finished difference. Result has 88 places, 62 transitions, 209 flow [2022-01-19 11:21:55,678 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=209, PETRI_PLACES=88, PETRI_TRANSITIONS=62} [2022-01-19 11:21:55,678 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, 23 predicate places. [2022-01-19 11:21:55,679 INFO L470 AbstractCegarLoop]: Abstraction has has 88 places, 62 transitions, 209 flow [2022-01-19 11:21:55,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 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) [2022-01-19 11:21:55,679 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:21:55,679 INFO L254 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] [2022-01-19 11:21:55,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 11:21:55,680 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 11:21:55,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:21:55,680 INFO L85 PathProgramCache]: Analyzing trace with hash -970326391, now seen corresponding path program 1 times [2022-01-19 11:21:55,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:21:55,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364796710] [2022-01-19 11:21:55,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:21:55,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:21:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:21:55,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:21:55,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:21:55,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364796710] [2022-01-19 11:21:55,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364796710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:21:55,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:21:55,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:21:55,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545617697] [2022-01-19 11:21:55,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:21:55,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:21:55,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:21:55,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:21:55,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:21:55,772 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 73 [2022-01-19 11:21:55,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 62 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 57.0) internal successors, (342), 6 states have internal predecessors, (342), 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) [2022-01-19 11:21:55,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:21:55,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 73 [2022-01-19 11:21:55,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:21:55,896 INFO L129 PetriNetUnfolder]: 41/254 cut-off events. [2022-01-19 11:21:55,896 INFO L130 PetriNetUnfolder]: For 927/991 co-relation queries the response was YES. [2022-01-19 11:21:55,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 775 conditions, 254 events. 41/254 cut-off events. For 927/991 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1167 event pairs, 0 based on Foata normal form. 7/255 useless extension candidates. Maximal degree in co-relation 727. Up to 60 conditions per place. [2022-01-19 11:21:55,898 INFO L132 encePairwiseOnDemand]: 64/73 looper letters, 18 selfloop transitions, 9 changer transitions 16/87 dead transitions. [2022-01-19 11:21:55,898 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 87 transitions, 522 flow [2022-01-19 11:21:55,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 11:21:55,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 11:21:55,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 536 transitions. [2022-01-19 11:21:55,900 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8158295281582952 [2022-01-19 11:21:55,900 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 536 transitions. [2022-01-19 11:21:55,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 536 transitions. [2022-01-19 11:21:55,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:21:55,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 536 transitions. [2022-01-19 11:21:55,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 59.55555555555556) internal successors, (536), 9 states have internal predecessors, (536), 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) [2022-01-19 11:21:55,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 73.0) internal successors, (730), 10 states have internal predecessors, (730), 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) [2022-01-19 11:21:55,902 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 73.0) internal successors, (730), 10 states have internal predecessors, (730), 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) [2022-01-19 11:21:55,902 INFO L186 Difference]: Start difference. First operand has 88 places, 62 transitions, 209 flow. Second operand 9 states and 536 transitions. [2022-01-19 11:21:55,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 87 transitions, 522 flow [2022-01-19 11:21:55,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 87 transitions, 458 flow, removed 27 selfloop flow, removed 7 redundant places. [2022-01-19 11:21:55,906 INFO L242 Difference]: Finished difference. Result has 91 places, 66 transitions, 280 flow [2022-01-19 11:21:55,907 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=280, PETRI_PLACES=91, PETRI_TRANSITIONS=66} [2022-01-19 11:21:55,907 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, 26 predicate places. [2022-01-19 11:21:55,907 INFO L470 AbstractCegarLoop]: Abstraction has has 91 places, 66 transitions, 280 flow [2022-01-19 11:21:55,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.0) internal successors, (342), 6 states have internal predecessors, (342), 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) [2022-01-19 11:21:55,908 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:21:55,908 INFO L254 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] [2022-01-19 11:21:55,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 11:21:55,908 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 11:21:55,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:21:55,908 INFO L85 PathProgramCache]: Analyzing trace with hash 148775806, now seen corresponding path program 1 times [2022-01-19 11:21:55,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:21:55,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374258455] [2022-01-19 11:21:55,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:21:55,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:21:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:21:55,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:21:55,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:21:55,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374258455] [2022-01-19 11:21:55,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374258455] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:21:55,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:21:55,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:21:55,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473206074] [2022-01-19 11:21:55,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:21:55,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:21:55,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:21:55,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:21:55,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:21:55,979 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 73 [2022-01-19 11:21:55,979 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 66 transitions, 280 flow. Second operand has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 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) [2022-01-19 11:21:55,979 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:21:55,979 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 73 [2022-01-19 11:21:55,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:21:56,063 INFO L129 PetriNetUnfolder]: 78/317 cut-off events. [2022-01-19 11:21:56,064 INFO L130 PetriNetUnfolder]: For 317/323 co-relation queries the response was YES. [2022-01-19 11:21:56,065 INFO L84 FinitePrefix]: Finished finitePrefix Result has 700 conditions, 317 events. 78/317 cut-off events. For 317/323 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1747 event pairs, 6 based on Foata normal form. 0/286 useless extension candidates. Maximal degree in co-relation 650. Up to 67 conditions per place. [2022-01-19 11:21:56,065 INFO L132 encePairwiseOnDemand]: 64/73 looper letters, 9 selfloop transitions, 5 changer transitions 26/90 dead transitions. [2022-01-19 11:21:56,065 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 90 transitions, 402 flow [2022-01-19 11:21:56,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 11:21:56,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 11:21:56,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 618 transitions. [2022-01-19 11:21:56,067 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8465753424657534 [2022-01-19 11:21:56,067 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 618 transitions. [2022-01-19 11:21:56,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 618 transitions. [2022-01-19 11:21:56,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:21:56,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 618 transitions. [2022-01-19 11:21:56,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 61.8) internal successors, (618), 10 states have internal predecessors, (618), 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) [2022-01-19 11:21:56,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 73.0) internal successors, (803), 11 states have internal predecessors, (803), 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) [2022-01-19 11:21:56,069 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 73.0) internal successors, (803), 11 states have internal predecessors, (803), 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) [2022-01-19 11:21:56,069 INFO L186 Difference]: Start difference. First operand has 91 places, 66 transitions, 280 flow. Second operand 10 states and 618 transitions. [2022-01-19 11:21:56,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 90 transitions, 402 flow [2022-01-19 11:21:56,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 90 transitions, 360 flow, removed 12 selfloop flow, removed 8 redundant places. [2022-01-19 11:21:56,072 INFO L242 Difference]: Finished difference. Result has 92 places, 63 transitions, 242 flow [2022-01-19 11:21:56,073 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=242, PETRI_PLACES=92, PETRI_TRANSITIONS=63} [2022-01-19 11:21:56,073 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, 27 predicate places. [2022-01-19 11:21:56,073 INFO L470 AbstractCegarLoop]: Abstraction has has 92 places, 63 transitions, 242 flow [2022-01-19 11:21:56,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 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) [2022-01-19 11:21:56,074 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:21:56,074 INFO L254 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] [2022-01-19 11:21:56,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 11:21:56,074 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 11:21:56,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:21:56,074 INFO L85 PathProgramCache]: Analyzing trace with hash -600496685, now seen corresponding path program 1 times [2022-01-19 11:21:56,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:21:56,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185731941] [2022-01-19 11:21:56,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:21:56,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:21:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:21:56,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:21:56,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:21:56,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185731941] [2022-01-19 11:21:56,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185731941] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:21:56,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:21:56,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 11:21:56,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426234470] [2022-01-19 11:21:56,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:21:56,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 11:21:56,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:21:56,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 11:21:56,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 11:21:56,136 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 73 [2022-01-19 11:21:56,136 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 63 transitions, 242 flow. Second operand has 7 states, 7 states have (on average 59.42857142857143) internal successors, (416), 7 states have internal predecessors, (416), 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) [2022-01-19 11:21:56,136 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:21:56,136 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 73 [2022-01-19 11:21:56,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:21:56,225 INFO L129 PetriNetUnfolder]: 17/128 cut-off events. [2022-01-19 11:21:56,225 INFO L130 PetriNetUnfolder]: For 176/180 co-relation queries the response was YES. [2022-01-19 11:21:56,225 INFO L84 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 128 events. 17/128 cut-off events. For 176/180 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 427 event pairs, 0 based on Foata normal form. 8/135 useless extension candidates. Maximal degree in co-relation 340. Up to 34 conditions per place. [2022-01-19 11:21:56,225 INFO L132 encePairwiseOnDemand]: 65/73 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2022-01-19 11:21:56,225 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 68 transitions, 329 flow [2022-01-19 11:21:56,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 11:21:56,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 11:21:56,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 607 transitions. [2022-01-19 11:21:56,227 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8315068493150685 [2022-01-19 11:21:56,227 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 607 transitions. [2022-01-19 11:21:56,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 607 transitions. [2022-01-19 11:21:56,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:21:56,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 607 transitions. [2022-01-19 11:21:56,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 60.7) internal successors, (607), 10 states have internal predecessors, (607), 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) [2022-01-19 11:21:56,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 73.0) internal successors, (803), 11 states have internal predecessors, (803), 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) [2022-01-19 11:21:56,230 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 73.0) internal successors, (803), 11 states have internal predecessors, (803), 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) [2022-01-19 11:21:56,230 INFO L186 Difference]: Start difference. First operand has 92 places, 63 transitions, 242 flow. Second operand 10 states and 607 transitions. [2022-01-19 11:21:56,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 68 transitions, 329 flow [2022-01-19 11:21:56,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 68 transitions, 270 flow, removed 19 selfloop flow, removed 13 redundant places. [2022-01-19 11:21:56,231 INFO L242 Difference]: Finished difference. Result has 75 places, 0 transitions, 0 flow [2022-01-19 11:21:56,231 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=75, PETRI_TRANSITIONS=0} [2022-01-19 11:21:56,232 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, 10 predicate places. [2022-01-19 11:21:56,232 INFO L470 AbstractCegarLoop]: Abstraction has has 75 places, 0 transitions, 0 flow [2022-01-19 11:21:56,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.42857142857143) internal successors, (416), 7 states have internal predecessors, (416), 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) [2022-01-19 11:21:56,234 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-19 11:21:56,234 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-19 11:21:56,234 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-19 11:21:56,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 11:21:56,237 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-01-19 11:21:56,238 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 11:21:56,238 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 11:21:56,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 11:21:56 BasicIcfg [2022-01-19 11:21:56,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 11:21:56,240 INFO L158 Benchmark]: Toolchain (without parser) took 2671.04ms. Allocated memory was 474.0MB in the beginning and 643.8MB in the end (delta: 169.9MB). Free memory was 419.3MB in the beginning and 524.9MB in the end (delta: -105.6MB). Peak memory consumption was 64.2MB. Max. memory is 16.0GB. [2022-01-19 11:21:56,241 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 474.0MB. Free memory is still 436.9MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 11:21:56,241 INFO L158 Benchmark]: CACSL2BoogieTranslator took 442.45ms. Allocated memory is still 474.0MB. Free memory was 419.0MB in the beginning and 439.7MB in the end (delta: -20.7MB). Peak memory consumption was 19.1MB. Max. memory is 16.0GB. [2022-01-19 11:21:56,241 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.86ms. Allocated memory is still 474.0MB. Free memory was 439.7MB in the beginning and 437.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 11:21:56,241 INFO L158 Benchmark]: Boogie Preprocessor took 25.59ms. Allocated memory is still 474.0MB. Free memory was 437.6MB in the beginning and 436.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 11:21:56,242 INFO L158 Benchmark]: RCFGBuilder took 253.10ms. Allocated memory is still 474.0MB. Free memory was 436.5MB in the beginning and 423.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-19 11:21:56,242 INFO L158 Benchmark]: TraceAbstraction took 1904.51ms. Allocated memory was 474.0MB in the beginning and 643.8MB in the end (delta: 169.9MB). Free memory was 423.0MB in the beginning and 524.9MB in the end (delta: -101.9MB). Peak memory consumption was 68.8MB. Max. memory is 16.0GB. [2022-01-19 11:21:56,243 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 474.0MB. Free memory is still 436.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 442.45ms. Allocated memory is still 474.0MB. Free memory was 419.0MB in the beginning and 439.7MB in the end (delta: -20.7MB). Peak memory consumption was 19.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 41.86ms. Allocated memory is still 474.0MB. Free memory was 439.7MB in the beginning and 437.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.59ms. Allocated memory is still 474.0MB. Free memory was 437.6MB in the beginning and 436.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 253.10ms. Allocated memory is still 474.0MB. Free memory was 436.5MB in the beginning and 423.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 1904.51ms. Allocated memory was 474.0MB in the beginning and 643.8MB in the end (delta: 169.9MB). Free memory was 423.0MB in the beginning and 524.9MB in the end (delta: -101.9MB). Peak memory consumption was 68.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 88 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: 1.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 140 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 140 mSDsluCounter, 233 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 215 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 242 IncrementalHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 62 mSDtfsCounter, 242 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=280occurred in iteration=4, InterpolantAutomatonStates: 56, 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, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 752 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2022-01-19 11:21:56,264 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...