/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/safe033_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 11:22:18,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 11:22:18,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 11:22:18,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 11:22:18,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 11:22:18,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 11:22:18,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 11:22:18,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 11:22:18,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 11:22:18,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 11:22:18,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 11:22:18,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 11:22:18,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 11:22:18,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 11:22:18,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 11:22:18,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 11:22:18,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 11:22:18,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 11:22:18,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 11:22:18,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 11:22:18,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 11:22:18,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 11:22:18,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 11:22:18,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 11:22:18,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 11:22:18,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 11:22:18,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 11:22:18,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 11:22:18,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 11:22:18,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 11:22:18,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 11:22:18,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 11:22:18,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 11:22:18,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 11:22:18,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 11:22:18,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 11:22:18,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 11:22:18,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 11:22:18,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 11:22:18,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 11:22:18,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 11:22:18,612 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 11:22:18,648 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 11:22:18,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 11:22:18,649 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 11:22:18,649 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 11:22:18,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 11:22:18,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 11:22:18,649 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 11:22:18,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 11:22:18,650 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 11:22:18,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 11:22:18,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 11:22:18,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 11:22:18,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 11:22:18,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 11:22:18,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 11:22:18,650 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 11:22:18,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 11:22:18,651 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 11:22:18,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 11:22:18,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 11:22:18,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 11:22:18,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 11:22:18,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 11:22:18,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:22:18,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 11:22:18,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 11:22:18,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 11:22:18,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 11:22:18,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 11:22:18,652 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 11:22:18,652 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 11:22:18,652 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 11:22:18,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 11:22:18,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 11:22:18,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 11:22:18,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 11:22:18,929 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 11:22:18,931 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 11:22:18,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.i [2022-01-19 11:22:18,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4504921e/a5f6c3b91d3344e4a00d35a8a945f282/FLAGd0d961a9c [2022-01-19 11:22:19,367 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 11:22:19,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.i [2022-01-19 11:22:19,379 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4504921e/a5f6c3b91d3344e4a00d35a8a945f282/FLAGd0d961a9c [2022-01-19 11:22:19,388 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4504921e/a5f6c3b91d3344e4a00d35a8a945f282 [2022-01-19 11:22:19,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 11:22:19,391 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 11:22:19,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 11:22:19,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 11:22:19,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 11:22:19,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:22:19" (1/1) ... [2022-01-19 11:22:19,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd84e2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:22:19, skipping insertion in model container [2022-01-19 11:22:19,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:22:19" (1/1) ... [2022-01-19 11:22:19,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 11:22:19,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 11:22:19,600 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/safe033_tso.i[945,958] [2022-01-19 11:22:19,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:22:19,754 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 11:22:19,765 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/safe033_tso.i[945,958] [2022-01-19 11:22:19,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:22:19,840 INFO L208 MainTranslator]: Completed translation [2022-01-19 11:22:19,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:22:19 WrapperNode [2022-01-19 11:22:19,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 11:22:19,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 11:22:19,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 11:22:19,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 11:22:19,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:22:19" (1/1) ... [2022-01-19 11:22:19,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:22:19" (1/1) ... [2022-01-19 11:22:19,895 INFO L137 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2022-01-19 11:22:19,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 11:22:19,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 11:22:19,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 11:22:19,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 11:22:19,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:22:19" (1/1) ... [2022-01-19 11:22:19,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:22:19" (1/1) ... [2022-01-19 11:22:19,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:22:19" (1/1) ... [2022-01-19 11:22:19,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:22:19" (1/1) ... [2022-01-19 11:22:19,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:22:19" (1/1) ... [2022-01-19 11:22:19,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:22:19" (1/1) ... [2022-01-19 11:22:19,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:22:19" (1/1) ... [2022-01-19 11:22:19,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 11:22:19,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 11:22:19,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 11:22:19,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 11:22:19,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:22:19" (1/1) ... [2022-01-19 11:22:19,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:22:19,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 11:22:19,964 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 11:22:19,988 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 11:22:20,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 11:22:20,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 11:22:20,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 11:22:20,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 11:22:20,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 11:22:20,013 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-01-19 11:22:20,013 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-01-19 11:22:20,013 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-01-19 11:22:20,013 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-01-19 11:22:20,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 11:22:20,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 11:22:20,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 11:22:20,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 11:22:20,015 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 11:22:20,103 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 11:22:20,104 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 11:22:20,211 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 11:22:20,217 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 11:22:20,217 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 11:22:20,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:22:20 BoogieIcfgContainer [2022-01-19 11:22:20,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 11:22:20,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 11:22:20,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 11:22:20,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 11:22:20,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 11:22:19" (1/3) ... [2022-01-19 11:22:20,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f43ad7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:22:20, skipping insertion in model container [2022-01-19 11:22:20,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:22:19" (2/3) ... [2022-01-19 11:22:20,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f43ad7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:22:20, skipping insertion in model container [2022-01-19 11:22:20,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:22:20" (3/3) ... [2022-01-19 11:22:20,226 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.i [2022-01-19 11:22:20,231 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 11:22:20,231 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 11:22:20,231 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 11:22:20,258 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,258 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,258 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,258 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,258 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,259 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,259 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,259 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,259 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,260 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,260 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,260 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,260 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,261 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,261 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,261 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,261 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,261 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,261 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,261 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,262 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,262 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,262 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,263 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,266 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,266 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,266 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,266 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,269 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,269 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,269 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,269 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:22:20,270 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 11:22:20,342 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 11:22:20,359 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 11:22:20,359 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-19 11:22:20,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 74 transitions, 158 flow [2022-01-19 11:22:20,427 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2022-01-19 11:22:20,435 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 11:22:20,439 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 72 events. 2/72 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. 0/69 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2022-01-19 11:22:20,440 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 74 transitions, 158 flow [2022-01-19 11:22:20,446 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 60 transitions, 126 flow [2022-01-19 11:22:20,469 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2022-01-19 11:22:20,470 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 11:22:20,470 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:22:20,471 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] [2022-01-19 11:22:20,471 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 11:22:20,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:22:20,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1399573848, now seen corresponding path program 1 times [2022-01-19 11:22:20,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:22:20,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091841529] [2022-01-19 11:22:20,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:22:20,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:22:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:22:20,850 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 11:22:20,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:22:20,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091841529] [2022-01-19 11:22:20,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091841529] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:22:20,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:22:20,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:22:20,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093582916] [2022-01-19 11:22:20,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:22:20,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:22:20,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:22:20,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:22:20,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:22:20,908 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 74 [2022-01-19 11:22:20,913 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 60 transitions, 126 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 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 11:22:20,913 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:22:20,913 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 74 [2022-01-19 11:22:20,914 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:22:21,108 INFO L129 PetriNetUnfolder]: 25/140 cut-off events. [2022-01-19 11:22:21,109 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 11:22:21,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 140 events. 25/140 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 415 event pairs, 5 based on Foata normal form. 6/143 useless extension candidates. Maximal degree in co-relation 182. Up to 33 conditions per place. [2022-01-19 11:22:21,111 INFO L132 encePairwiseOnDemand]: 66/74 looper letters, 11 selfloop transitions, 3 changer transitions 19/81 dead transitions. [2022-01-19 11:22:21,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 81 transitions, 237 flow [2022-01-19 11:22:21,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 11:22:21,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 11:22:21,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 568 transitions. [2022-01-19 11:22:21,126 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8528528528528528 [2022-01-19 11:22:21,127 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 568 transitions. [2022-01-19 11:22:21,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 568 transitions. [2022-01-19 11:22:21,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:22:21,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 568 transitions. [2022-01-19 11:22:21,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 63.111111111111114) internal successors, (568), 9 states have internal predecessors, (568), 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 11:22:21,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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 11:22:21,153 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 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 11:22:21,154 INFO L186 Difference]: Start difference. First operand has 66 places, 60 transitions, 126 flow. Second operand 9 states and 568 transitions. [2022-01-19 11:22:21,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 81 transitions, 237 flow [2022-01-19 11:22:21,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 81 transitions, 234 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 11:22:21,162 INFO L242 Difference]: Finished difference. Result has 79 places, 61 transitions, 165 flow [2022-01-19 11:22:21,164 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=165, PETRI_PLACES=79, PETRI_TRANSITIONS=61} [2022-01-19 11:22:21,168 INFO L334 CegarLoopForPetriNet]: 66 programPoint places, 13 predicate places. [2022-01-19 11:22:21,168 INFO L470 AbstractCegarLoop]: Abstraction has has 79 places, 61 transitions, 165 flow [2022-01-19 11:22:21,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 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 11:22:21,169 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:22:21,169 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 11:22:21,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 11:22:21,169 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 11:22:21,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:22:21,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1506298105, now seen corresponding path program 1 times [2022-01-19 11:22:21,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:22:21,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818856078] [2022-01-19 11:22:21,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:22:21,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:22:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:22:21,293 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 11:22:21,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:22:21,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818856078] [2022-01-19 11:22:21,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818856078] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:22:21,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:22:21,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:22:21,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471201182] [2022-01-19 11:22:21,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:22:21,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:22:21,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:22:21,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:22:21,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:22:21,297 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 74 [2022-01-19 11:22:21,298 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 61 transitions, 165 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 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 11:22:21,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:22:21,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 74 [2022-01-19 11:22:21,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:22:21,462 INFO L129 PetriNetUnfolder]: 47/200 cut-off events. [2022-01-19 11:22:21,463 INFO L130 PetriNetUnfolder]: For 76/76 co-relation queries the response was YES. [2022-01-19 11:22:21,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 200 events. 47/200 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 829 event pairs, 4 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 353. Up to 34 conditions per place. [2022-01-19 11:22:21,469 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 16 selfloop transitions, 12 changer transitions 8/85 dead transitions. [2022-01-19 11:22:21,469 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 85 transitions, 287 flow [2022-01-19 11:22:21,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 11:22:21,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 11:22:21,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 628 transitions. [2022-01-19 11:22:21,475 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8486486486486486 [2022-01-19 11:22:21,475 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 628 transitions. [2022-01-19 11:22:21,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 628 transitions. [2022-01-19 11:22:21,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:22:21,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 628 transitions. [2022-01-19 11:22:21,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 62.8) internal successors, (628), 10 states have internal predecessors, (628), 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 11:22:21,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 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 11:22:21,496 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 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 11:22:21,496 INFO L186 Difference]: Start difference. First operand has 79 places, 61 transitions, 165 flow. Second operand 10 states and 628 transitions. [2022-01-19 11:22:21,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 85 transitions, 287 flow [2022-01-19 11:22:21,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 85 transitions, 278 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-01-19 11:22:21,505 INFO L242 Difference]: Finished difference. Result has 84 places, 72 transitions, 242 flow [2022-01-19 11:22:21,505 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=242, PETRI_PLACES=84, PETRI_TRANSITIONS=72} [2022-01-19 11:22:21,506 INFO L334 CegarLoopForPetriNet]: 66 programPoint places, 18 predicate places. [2022-01-19 11:22:21,506 INFO L470 AbstractCegarLoop]: Abstraction has has 84 places, 72 transitions, 242 flow [2022-01-19 11:22:21,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 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 11:22:21,507 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:22:21,507 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] [2022-01-19 11:22:21,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 11:22:21,508 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 11:22:21,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:22:21,509 INFO L85 PathProgramCache]: Analyzing trace with hash 632693896, now seen corresponding path program 1 times [2022-01-19 11:22:21,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:22:21,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327868] [2022-01-19 11:22:21,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:22:21,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:22:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:22:21,682 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 11:22:21,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:22:21,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327868] [2022-01-19 11:22:21,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327868] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:22:21,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:22:21,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 11:22:21,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048385931] [2022-01-19 11:22:21,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:22:21,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 11:22:21,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:22:21,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 11:22:21,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 11:22:21,689 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 74 [2022-01-19 11:22:21,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 72 transitions, 242 flow. Second operand has 7 states, 7 states have (on average 60.42857142857143) internal successors, (423), 7 states have internal predecessors, (423), 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 11:22:21,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:22:21,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 74 [2022-01-19 11:22:21,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:22:21,877 INFO L129 PetriNetUnfolder]: 24/155 cut-off events. [2022-01-19 11:22:21,878 INFO L130 PetriNetUnfolder]: For 137/143 co-relation queries the response was YES. [2022-01-19 11:22:21,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 399 conditions, 155 events. 24/155 cut-off events. For 137/143 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 609 event pairs, 0 based on Foata normal form. 4/153 useless extension candidates. Maximal degree in co-relation 355. Up to 20 conditions per place. [2022-01-19 11:22:21,880 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 14 selfloop transitions, 15 changer transitions 13/91 dead transitions. [2022-01-19 11:22:21,880 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 91 transitions, 410 flow [2022-01-19 11:22:21,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 11:22:21,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 11:22:21,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 804 transitions. [2022-01-19 11:22:21,883 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8357588357588358 [2022-01-19 11:22:21,883 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 804 transitions. [2022-01-19 11:22:21,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 804 transitions. [2022-01-19 11:22:21,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:22:21,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 804 transitions. [2022-01-19 11:22:21,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 61.84615384615385) internal successors, (804), 13 states have internal predecessors, (804), 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 11:22:21,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 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 11:22:21,889 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 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 11:22:21,889 INFO L186 Difference]: Start difference. First operand has 84 places, 72 transitions, 242 flow. Second operand 13 states and 804 transitions. [2022-01-19 11:22:21,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 91 transitions, 410 flow [2022-01-19 11:22:21,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 91 transitions, 388 flow, removed 10 selfloop flow, removed 4 redundant places. [2022-01-19 11:22:21,897 INFO L242 Difference]: Finished difference. Result has 99 places, 74 transitions, 295 flow [2022-01-19 11:22:21,897 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=295, PETRI_PLACES=99, PETRI_TRANSITIONS=74} [2022-01-19 11:22:21,899 INFO L334 CegarLoopForPetriNet]: 66 programPoint places, 33 predicate places. [2022-01-19 11:22:21,899 INFO L470 AbstractCegarLoop]: Abstraction has has 99 places, 74 transitions, 295 flow [2022-01-19 11:22:21,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 60.42857142857143) internal successors, (423), 7 states have internal predecessors, (423), 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 11:22:21,900 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:22:21,900 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, 1, 1, 1] [2022-01-19 11:22:21,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 11:22:21,901 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 11:22:21,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:22:21,904 INFO L85 PathProgramCache]: Analyzing trace with hash -364611864, now seen corresponding path program 1 times [2022-01-19 11:22:21,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:22:21,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719911462] [2022-01-19 11:22:21,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:22:21,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:22:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:22:21,999 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 11:22:22,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:22:22,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719911462] [2022-01-19 11:22:22,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719911462] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:22:22,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:22:22,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:22:22,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683291624] [2022-01-19 11:22:22,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:22:22,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:22:22,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:22:22,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:22:22,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:22:22,003 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 74 [2022-01-19 11:22:22,003 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 74 transitions, 295 flow. Second operand has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 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 11:22:22,003 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:22:22,003 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 74 [2022-01-19 11:22:22,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:22:22,072 INFO L129 PetriNetUnfolder]: 9/169 cut-off events. [2022-01-19 11:22:22,072 INFO L130 PetriNetUnfolder]: For 222/225 co-relation queries the response was YES. [2022-01-19 11:22:22,073 INFO L84 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 169 events. 9/169 cut-off events. For 222/225 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 730 event pairs, 1 based on Foata normal form. 1/164 useless extension candidates. Maximal degree in co-relation 369. Up to 21 conditions per place. [2022-01-19 11:22:22,073 INFO L132 encePairwiseOnDemand]: 68/74 looper letters, 9 selfloop transitions, 2 changer transitions 18/78 dead transitions. [2022-01-19 11:22:22,073 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 78 transitions, 337 flow [2022-01-19 11:22:22,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 11:22:22,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 11:22:22,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 371 transitions. [2022-01-19 11:22:22,075 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8355855855855856 [2022-01-19 11:22:22,075 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 371 transitions. [2022-01-19 11:22:22,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 371 transitions. [2022-01-19 11:22:22,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:22:22,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 371 transitions. [2022-01-19 11:22:22,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 61.833333333333336) internal successors, (371), 6 states have internal predecessors, (371), 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 11:22:22,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 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 11:22:22,078 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 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 11:22:22,078 INFO L186 Difference]: Start difference. First operand has 99 places, 74 transitions, 295 flow. Second operand 6 states and 371 transitions. [2022-01-19 11:22:22,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 78 transitions, 337 flow [2022-01-19 11:22:22,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 78 transitions, 303 flow, removed 6 selfloop flow, removed 10 redundant places. [2022-01-19 11:22:22,083 INFO L242 Difference]: Finished difference. Result has 95 places, 60 transitions, 189 flow [2022-01-19 11:22:22,083 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=189, PETRI_PLACES=95, PETRI_TRANSITIONS=60} [2022-01-19 11:22:22,084 INFO L334 CegarLoopForPetriNet]: 66 programPoint places, 29 predicate places. [2022-01-19 11:22:22,084 INFO L470 AbstractCegarLoop]: Abstraction has has 95 places, 60 transitions, 189 flow [2022-01-19 11:22:22,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 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 11:22:22,084 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:22:22,084 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, 1, 1, 1] [2022-01-19 11:22:22,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 11:22:22,085 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 11:22:22,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:22:22,085 INFO L85 PathProgramCache]: Analyzing trace with hash -67500082, now seen corresponding path program 2 times [2022-01-19 11:22:22,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:22:22,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277719794] [2022-01-19 11:22:22,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:22:22,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:22:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:22:22,186 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 11:22:22,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:22:22,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277719794] [2022-01-19 11:22:22,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277719794] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:22:22,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:22:22,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 11:22:22,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694253682] [2022-01-19 11:22:22,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:22:22,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 11:22:22,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:22:22,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 11:22:22,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 11:22:22,189 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 74 [2022-01-19 11:22:22,190 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 60 transitions, 189 flow. Second operand has 7 states, 7 states have (on average 59.714285714285715) internal successors, (418), 7 states have internal predecessors, (418), 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 11:22:22,190 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:22:22,190 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 74 [2022-01-19 11:22:22,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:22:22,259 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2022-01-19 11:22:22,259 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2022-01-19 11:22:22,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 60 events. 1/60 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 1/61 useless extension candidates. Maximal degree in co-relation 106. Up to 6 conditions per place. [2022-01-19 11:22:22,260 INFO L132 encePairwiseOnDemand]: 68/74 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2022-01-19 11:22:22,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 58 transitions, 205 flow [2022-01-19 11:22:22,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 11:22:22,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 11:22:22,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 418 transitions. [2022-01-19 11:22:22,261 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.806949806949807 [2022-01-19 11:22:22,262 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 418 transitions. [2022-01-19 11:22:22,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 418 transitions. [2022-01-19 11:22:22,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:22:22,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 418 transitions. [2022-01-19 11:22:22,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 59.714285714285715) internal successors, (418), 7 states have internal predecessors, (418), 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 11:22:22,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 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 11:22:22,265 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 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 11:22:22,265 INFO L186 Difference]: Start difference. First operand has 95 places, 60 transitions, 189 flow. Second operand 7 states and 418 transitions. [2022-01-19 11:22:22,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 58 transitions, 205 flow [2022-01-19 11:22:22,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 58 transitions, 154 flow, removed 12 selfloop flow, removed 16 redundant places. [2022-01-19 11:22:22,266 INFO L242 Difference]: Finished difference. Result has 72 places, 0 transitions, 0 flow [2022-01-19 11:22:22,266 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=72, PETRI_TRANSITIONS=0} [2022-01-19 11:22:22,267 INFO L334 CegarLoopForPetriNet]: 66 programPoint places, 6 predicate places. [2022-01-19 11:22:22,267 INFO L470 AbstractCegarLoop]: Abstraction has has 72 places, 0 transitions, 0 flow [2022-01-19 11:22:22,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.714285714285715) internal successors, (418), 7 states have internal predecessors, (418), 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 11:22:22,270 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-19 11:22:22,270 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-19 11:22:22,270 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-19 11:22:22,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 11:22:22,274 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-01-19 11:22:22,276 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 11:22:22,276 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 11:22:22,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 11:22:22 BasicIcfg [2022-01-19 11:22:22,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 11:22:22,280 INFO L158 Benchmark]: Toolchain (without parser) took 2888.76ms. Allocated memory was 369.1MB in the beginning and 501.2MB in the end (delta: 132.1MB). Free memory was 310.9MB in the beginning and 392.2MB in the end (delta: -81.3MB). Peak memory consumption was 51.4MB. Max. memory is 16.0GB. [2022-01-19 11:22:22,280 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 369.1MB. Free memory is still 328.4MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 11:22:22,281 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.87ms. Allocated memory was 369.1MB in the beginning and 501.2MB in the end (delta: 132.1MB). Free memory was 310.7MB in the beginning and 460.9MB in the end (delta: -150.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.0GB. [2022-01-19 11:22:22,281 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.08ms. Allocated memory is still 501.2MB. Free memory was 460.9MB in the beginning and 459.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 11:22:22,282 INFO L158 Benchmark]: Boogie Preprocessor took 31.67ms. Allocated memory is still 501.2MB. Free memory was 459.2MB in the beginning and 457.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 11:22:22,282 INFO L158 Benchmark]: RCFGBuilder took 291.62ms. Allocated memory is still 501.2MB. Free memory was 457.7MB in the beginning and 445.7MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2022-01-19 11:22:22,282 INFO L158 Benchmark]: TraceAbstraction took 2058.66ms. Allocated memory is still 501.2MB. Free memory was 445.1MB in the beginning and 392.2MB in the end (delta: 52.9MB). Peak memory consumption was 53.4MB. Max. memory is 16.0GB. [2022-01-19 11:22:22,284 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 369.1MB. Free memory is still 328.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 448.87ms. Allocated memory was 369.1MB in the beginning and 501.2MB in the end (delta: 132.1MB). Free memory was 310.7MB in the beginning and 460.9MB in the end (delta: -150.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 53.08ms. Allocated memory is still 501.2MB. Free memory was 460.9MB in the beginning and 459.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.67ms. Allocated memory is still 501.2MB. Free memory was 459.2MB in the beginning and 457.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 291.62ms. Allocated memory is still 501.2MB. Free memory was 457.7MB in the beginning and 445.7MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 2058.66ms. Allocated memory is still 501.2MB. Free memory was 445.1MB in the beginning and 392.2MB in the end (delta: 52.9MB). Peak memory consumption was 53.4MB. 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, 89 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: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 134 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 139 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 185 IncrementalHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 32 mSDtfsCounter, 185 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=295occurred in iteration=3, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 247 ConstructedInterpolants, 0 QuantifiedInterpolants, 635 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! [2022-01-19 11:22:22,318 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...