/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-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 09:16:14,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 09:16:14,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 09:16:14,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 09:16:14,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 09:16:14,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 09:16:14,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 09:16:14,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 09:16:14,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 09:16:14,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 09:16:14,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 09:16:14,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 09:16:14,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 09:16:14,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 09:16:14,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 09:16:14,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 09:16:14,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 09:16:14,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 09:16:14,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 09:16:14,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 09:16:14,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 09:16:14,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 09:16:14,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 09:16:14,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 09:16:14,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 09:16:14,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 09:16:14,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 09:16:14,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 09:16:14,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 09:16:14,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 09:16:14,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 09:16:14,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 09:16:14,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 09:16:14,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 09:16:14,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 09:16:14,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 09:16:14,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 09:16:14,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 09:16:14,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 09:16:14,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 09:16:14,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 09:16:14,765 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-FA-NoLbe-Separate.epf [2022-01-18 09:16:14,777 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 09:16:14,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 09:16:14,778 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 09:16:14,778 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 09:16:14,779 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 09:16:14,779 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 09:16:14,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 09:16:14,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 09:16:14,779 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 09:16:14,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 09:16:14,780 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 09:16:14,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 09:16:14,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 09:16:14,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 09:16:14,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 09:16:14,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 09:16:14,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 09:16:14,781 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 09:16:14,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 09:16:14,781 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 09:16:14,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 09:16:14,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 09:16:14,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 09:16:14,781 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 09:16:14,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 09:16:14,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:16:14,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 09:16:14,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 09:16:14,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 09:16:14,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 09:16:14,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 09:16:14,783 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 09:16:14,783 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 09:16:14,783 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 09:16:14,783 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 09:16:14,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 09:16:14,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 09:16:14,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 09:16:14,964 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 09:16:14,964 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 09:16:14,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.i [2022-01-18 09:16:15,010 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/037df9470/f7a63234719a43fc992835ed1bc7a139/FLAG454ca9b1a [2022-01-18 09:16:15,378 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 09:16:15,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.i [2022-01-18 09:16:15,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/037df9470/f7a63234719a43fc992835ed1bc7a139/FLAG454ca9b1a [2022-01-18 09:16:15,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/037df9470/f7a63234719a43fc992835ed1bc7a139 [2022-01-18 09:16:15,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 09:16:15,781 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 09:16:15,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 09:16:15,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 09:16:15,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 09:16:15,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:16:15" (1/1) ... [2022-01-18 09:16:15,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2516033f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:15, skipping insertion in model container [2022-01-18 09:16:15,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:16:15" (1/1) ... [2022-01-18 09:16:15,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 09:16:15,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 09:16:15,937 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] [2022-01-18 09:16:16,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:16:16,033 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 09:16:16,046 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] [2022-01-18 09:16:16,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:16:16,106 INFO L208 MainTranslator]: Completed translation [2022-01-18 09:16:16,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:16 WrapperNode [2022-01-18 09:16:16,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 09:16:16,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 09:16:16,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 09:16:16,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 09:16:16,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:16" (1/1) ... [2022-01-18 09:16:16,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:16" (1/1) ... [2022-01-18 09:16:16,151 INFO L137 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2022-01-18 09:16:16,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 09:16:16,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 09:16:16,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 09:16:16,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 09:16:16,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:16" (1/1) ... [2022-01-18 09:16:16,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:16" (1/1) ... [2022-01-18 09:16:16,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:16" (1/1) ... [2022-01-18 09:16:16,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:16" (1/1) ... [2022-01-18 09:16:16,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:16" (1/1) ... [2022-01-18 09:16:16,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:16" (1/1) ... [2022-01-18 09:16:16,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:16" (1/1) ... [2022-01-18 09:16:16,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 09:16:16,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 09:16:16,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 09:16:16,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 09:16:16,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:16" (1/1) ... [2022-01-18 09:16:16,189 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:16:16,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:16:16,210 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) [2022-01-18 09:16:16,245 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 [2022-01-18 09:16:16,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 09:16:16,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 09:16:16,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 09:16:16,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 09:16:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 09:16:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-01-18 09:16:16,263 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-01-18 09:16:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-01-18 09:16:16,263 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-01-18 09:16:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 09:16:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 09:16:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 09:16:16,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 09:16:16,264 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 09:16:16,366 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 09:16:16,367 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 09:16:16,472 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 09:16:16,476 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 09:16:16,477 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 09:16:16,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:16:16 BoogieIcfgContainer [2022-01-18 09:16:16,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 09:16:16,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 09:16:16,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 09:16:16,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 09:16:16,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 09:16:15" (1/3) ... [2022-01-18 09:16:16,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4210121a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:16:16, skipping insertion in model container [2022-01-18 09:16:16,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:16" (2/3) ... [2022-01-18 09:16:16,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4210121a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:16:16, skipping insertion in model container [2022-01-18 09:16:16,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:16:16" (3/3) ... [2022-01-18 09:16:16,488 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.i [2022-01-18 09:16:16,491 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 09:16:16,491 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 09:16:16,491 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 09:16:16,491 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 09:16:16,509 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,509 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,509 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,509 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,509 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,509 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,510 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,510 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,510 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,510 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,510 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,510 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,511 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,511 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,511 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,511 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,511 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,511 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,511 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,511 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,512 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,512 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,512 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,512 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,514 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,514 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,514 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,514 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,516 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,516 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,516 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,516 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:16,517 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 09:16:16,544 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 09:16:16,554 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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 [2022-01-18 09:16:16,555 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 09:16:16,576 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 74 transitions, 158 flow [2022-01-18 09:16:16,652 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 954 states, 953 states have (on average 2.631689401888772) internal successors, (2508), 953 states have internal predecessors, (2508), 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) [2022-01-18 09:16:16,655 INFO L276 IsEmpty]: Start isEmpty. Operand has 954 states, 953 states have (on average 2.631689401888772) internal successors, (2508), 953 states have internal predecessors, (2508), 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) [2022-01-18 09:16:16,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 09:16:16,671 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:16:16,672 INFO L514 BasicCegarLoop]: 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] [2022-01-18 09:16:16,672 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 09:16:16,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:16:16,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1399573848, now seen corresponding path program 1 times [2022-01-18 09:16:16,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:16:16,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519860332] [2022-01-18 09:16:16,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:16:16,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:16:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:16:16,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:16:16,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:16:16,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519860332] [2022-01-18 09:16:16,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519860332] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:16:16,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:16:16,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 09:16:16,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601211968] [2022-01-18 09:16:16,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:16:16,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 09:16:16,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:16:16,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 09:16:16,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 09:16:16,975 INFO L87 Difference]: Start difference. First operand has 954 states, 953 states have (on average 2.631689401888772) internal successors, (2508), 953 states have internal predecessors, (2508), 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) Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2022-01-18 09:16:17,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:16:17,082 INFO L93 Difference]: Finished difference Result 1157 states and 2955 transitions. [2022-01-18 09:16:17,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 09:16:17,085 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) Word has length 46 [2022-01-18 09:16:17,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:16:17,102 INFO L225 Difference]: With dead ends: 1157 [2022-01-18 09:16:17,102 INFO L226 Difference]: Without dead ends: 863 [2022-01-18 09:16:17,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 09:16:17,106 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 68 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:16:17,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 363 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:16:17,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2022-01-18 09:16:17,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 863. [2022-01-18 09:16:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 862 states have (on average 2.5522041763341066) internal successors, (2200), 862 states have internal predecessors, (2200), 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) [2022-01-18 09:16:17,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 2200 transitions. [2022-01-18 09:16:17,183 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 2200 transitions. Word has length 46 [2022-01-18 09:16:17,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:16:17,183 INFO L470 AbstractCegarLoop]: Abstraction has 863 states and 2200 transitions. [2022-01-18 09:16:17,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2022-01-18 09:16:17,184 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 2200 transitions. [2022-01-18 09:16:17,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 09:16:17,187 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:16:17,187 INFO L514 BasicCegarLoop]: 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] [2022-01-18 09:16:17,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 09:16:17,188 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 09:16:17,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:16:17,188 INFO L85 PathProgramCache]: Analyzing trace with hash 349471353, now seen corresponding path program 1 times [2022-01-18 09:16:17,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:16:17,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921651979] [2022-01-18 09:16:17,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:16:17,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:16:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:16:17,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:16:17,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:16:17,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921651979] [2022-01-18 09:16:17,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921651979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:16:17,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:16:17,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 09:16:17,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520857942] [2022-01-18 09:16:17,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:16:17,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 09:16:17,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:16:17,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 09:16:17,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 09:16:17,280 INFO L87 Difference]: Start difference. First operand 863 states and 2200 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-01-18 09:16:17,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:16:17,364 INFO L93 Difference]: Finished difference Result 926 states and 2286 transitions. [2022-01-18 09:16:17,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 09:16:17,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) Word has length 48 [2022-01-18 09:16:17,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:16:17,368 INFO L225 Difference]: With dead ends: 926 [2022-01-18 09:16:17,368 INFO L226 Difference]: Without dead ends: 681 [2022-01-18 09:16:17,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 09:16:17,373 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 98 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:16:17,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 276 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:16:17,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2022-01-18 09:16:17,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 681. [2022-01-18 09:16:17,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 680 states have (on average 2.4323529411764704) internal successors, (1654), 680 states have internal predecessors, (1654), 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) [2022-01-18 09:16:17,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 1654 transitions. [2022-01-18 09:16:17,396 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 1654 transitions. Word has length 48 [2022-01-18 09:16:17,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:16:17,397 INFO L470 AbstractCegarLoop]: Abstraction has 681 states and 1654 transitions. [2022-01-18 09:16:17,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-01-18 09:16:17,398 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 1654 transitions. [2022-01-18 09:16:17,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-18 09:16:17,400 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:16:17,400 INFO L514 BasicCegarLoop]: 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] [2022-01-18 09:16:17,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 09:16:17,400 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 09:16:17,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:16:17,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1521460138, now seen corresponding path program 1 times [2022-01-18 09:16:17,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:16:17,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607003352] [2022-01-18 09:16:17,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:16:17,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:16:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:16:17,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:16:17,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:16:17,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607003352] [2022-01-18 09:16:17,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607003352] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:16:17,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:16:17,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 09:16:17,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104738289] [2022-01-18 09:16:17,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:16:17,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 09:16:17,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:16:17,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 09:16:17,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 09:16:17,531 INFO L87 Difference]: Start difference. First operand 681 states and 1654 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2022-01-18 09:16:17,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:16:17,630 INFO L93 Difference]: Finished difference Result 1104 states and 2656 transitions. [2022-01-18 09:16:17,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 09:16:17,630 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) Word has length 50 [2022-01-18 09:16:17,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:16:17,635 INFO L225 Difference]: With dead ends: 1104 [2022-01-18 09:16:17,636 INFO L226 Difference]: Without dead ends: 756 [2022-01-18 09:16:17,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 09:16:17,642 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 82 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:16:17,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 361 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:16:17,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-01-18 09:16:17,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 672. [2022-01-18 09:16:17,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 671 states have (on average 2.375558867362146) internal successors, (1594), 671 states have internal predecessors, (1594), 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) [2022-01-18 09:16:17,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1594 transitions. [2022-01-18 09:16:17,657 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1594 transitions. Word has length 50 [2022-01-18 09:16:17,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:16:17,659 INFO L470 AbstractCegarLoop]: Abstraction has 672 states and 1594 transitions. [2022-01-18 09:16:17,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2022-01-18 09:16:17,659 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1594 transitions. [2022-01-18 09:16:17,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-18 09:16:17,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:16:17,661 INFO L514 BasicCegarLoop]: 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] [2022-01-18 09:16:17,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 09:16:17,661 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 09:16:17,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:16:17,662 INFO L85 PathProgramCache]: Analyzing trace with hash -783771350, now seen corresponding path program 1 times [2022-01-18 09:16:17,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:16:17,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051421055] [2022-01-18 09:16:17,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:16:17,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:16:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:16:17,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:16:17,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:16:17,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051421055] [2022-01-18 09:16:17,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051421055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:16:17,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:16:17,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 09:16:17,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646543958] [2022-01-18 09:16:17,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:16:17,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 09:16:17,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:16:17,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 09:16:17,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-18 09:16:17,786 INFO L87 Difference]: Start difference. First operand 672 states and 1594 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2022-01-18 09:16:17,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:16:17,858 INFO L93 Difference]: Finished difference Result 537 states and 1216 transitions. [2022-01-18 09:16:17,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 09:16:17,858 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) Word has length 50 [2022-01-18 09:16:17,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:16:17,860 INFO L225 Difference]: With dead ends: 537 [2022-01-18 09:16:17,860 INFO L226 Difference]: Without dead ends: 293 [2022-01-18 09:16:17,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-18 09:16:17,865 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 136 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:16:17,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 291 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:16:17,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-01-18 09:16:17,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 281. [2022-01-18 09:16:17,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 2.164285714285714) internal successors, (606), 280 states have internal predecessors, (606), 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) [2022-01-18 09:16:17,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 606 transitions. [2022-01-18 09:16:17,873 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 606 transitions. Word has length 50 [2022-01-18 09:16:17,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:16:17,873 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 606 transitions. [2022-01-18 09:16:17,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2022-01-18 09:16:17,873 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 606 transitions. [2022-01-18 09:16:17,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 09:16:17,874 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:16:17,875 INFO L514 BasicCegarLoop]: 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] [2022-01-18 09:16:17,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 09:16:17,878 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 09:16:17,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:16:17,883 INFO L85 PathProgramCache]: Analyzing trace with hash 845134124, now seen corresponding path program 1 times [2022-01-18 09:16:17,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:16:17,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275920511] [2022-01-18 09:16:17,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:16:17,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:16:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:16:17,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:16:17,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:16:17,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275920511] [2022-01-18 09:16:17,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275920511] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:16:17,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:16:17,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 09:16:17,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779087628] [2022-01-18 09:16:17,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:16:17,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 09:16:17,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:16:17,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 09:16:17,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-18 09:16:17,996 INFO L87 Difference]: Start difference. First operand 281 states and 606 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2022-01-18 09:16:18,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:16:18,045 INFO L93 Difference]: Finished difference Result 263 states and 564 transitions. [2022-01-18 09:16:18,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 09:16:18,045 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) Word has length 54 [2022-01-18 09:16:18,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:16:18,047 INFO L225 Difference]: With dead ends: 263 [2022-01-18 09:16:18,047 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 09:16:18,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-18 09:16:18,047 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 46 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:16:18,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 328 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:16:18,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 09:16:18,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 09:16:18,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-01-18 09:16:18,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 09:16:18,049 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2022-01-18 09:16:18,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:16:18,049 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 09:16:18,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2022-01-18 09:16:18,049 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 09:16:18,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 09:16:18,051 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 09:16:18,051 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 09:16:18,051 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-18 09:16:18,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 09:16:18,054 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-01-18 09:16:18,055 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 09:16:18,055 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 09:16:18,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 09:16:18 BasicIcfg [2022-01-18 09:16:18,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 09:16:18,058 INFO L158 Benchmark]: Toolchain (without parser) took 2276.37ms. Allocated memory is still 385.9MB. Free memory was 331.2MB in the beginning and 177.0MB in the end (delta: 154.2MB). Peak memory consumption was 151.7MB. Max. memory is 16.0GB. [2022-01-18 09:16:18,058 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 385.9MB. Free memory is still 348.8MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 09:16:18,058 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.00ms. Allocated memory is still 385.9MB. Free memory was 331.1MB in the beginning and 349.0MB in the end (delta: -17.9MB). Peak memory consumption was 11.2MB. Max. memory is 16.0GB. [2022-01-18 09:16:18,058 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.54ms. Allocated memory is still 385.9MB. Free memory was 349.0MB in the beginning and 346.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 09:16:18,058 INFO L158 Benchmark]: Boogie Preprocessor took 25.71ms. Allocated memory is still 385.9MB. Free memory was 346.8MB in the beginning and 345.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 09:16:18,058 INFO L158 Benchmark]: RCFGBuilder took 300.23ms. Allocated memory is still 385.9MB. Free memory was 345.8MB in the beginning and 333.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-18 09:16:18,059 INFO L158 Benchmark]: TraceAbstraction took 1578.20ms. Allocated memory is still 385.9MB. Free memory was 332.2MB in the beginning and 177.0MB in the end (delta: 155.2MB). Peak memory consumption was 155.2MB. Max. memory is 16.0GB. [2022-01-18 09:16:18,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 385.9MB. Free memory is still 348.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 318.00ms. Allocated memory is still 385.9MB. Free memory was 331.1MB in the beginning and 349.0MB in the end (delta: -17.9MB). Peak memory consumption was 11.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.54ms. Allocated memory is still 385.9MB. Free memory was 349.0MB in the beginning and 346.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.71ms. Allocated memory is still 385.9MB. Free memory was 346.8MB in the beginning and 345.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 300.23ms. Allocated memory is still 385.9MB. Free memory was 345.8MB in the beginning and 333.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 1578.20ms. Allocated memory is still 385.9MB. Free memory was 332.2MB in the beginning and 177.0MB in the end (delta: 155.2MB). Peak memory consumption was 155.2MB. 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. OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 430 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 430 mSDsluCounter, 1619 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1260 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 195 IncrementalHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 393 mSDtfsCounter, 195 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=954occurred in iteration=0, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 96 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 248 NumberOfCodeBlocks, 248 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 717 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! [2022-01-18 09:16:18,089 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...