/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/safe037.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 09:16:27,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 09:16:27,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 09:16:27,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 09:16:27,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 09:16:27,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 09:16:27,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 09:16:27,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 09:16:27,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 09:16:27,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 09:16:27,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 09:16:27,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 09:16:27,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 09:16:27,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 09:16:27,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 09:16:27,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 09:16:27,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 09:16:27,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 09:16:27,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 09:16:27,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 09:16:27,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 09:16:27,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 09:16:27,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 09:16:27,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 09:16:27,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 09:16:27,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 09:16:27,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 09:16:27,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 09:16:27,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 09:16:27,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 09:16:27,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 09:16:27,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 09:16:27,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 09:16:27,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 09:16:27,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 09:16:27,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 09:16:27,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 09:16:27,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 09:16:27,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 09:16:27,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 09:16:27,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 09:16:27,312 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 09:16:27,339 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 09:16:27,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 09:16:27,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 09:16:27,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 09:16:27,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 09:16:27,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 09:16:27,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 09:16:27,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 09:16:27,341 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 09:16:27,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 09:16:27,341 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 09:16:27,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 09:16:27,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 09:16:27,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 09:16:27,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 09:16:27,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 09:16:27,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 09:16:27,342 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 09:16:27,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 09:16:27,342 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 09:16:27,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 09:16:27,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 09:16:27,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 09:16:27,342 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 09:16:27,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 09:16:27,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:16:27,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 09:16:27,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 09:16:27,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 09:16:27,343 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 09:16:27,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 09:16:27,343 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 09:16:27,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 09:16:27,343 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 09:16:27,343 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 09:16:27,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 09:16:27,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 09:16:27,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 09:16:27,555 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 09:16:27,555 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 09:16:27,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037.i [2022-01-18 09:16:27,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebfd1d901/69e1375467114c0fbad3e1faa659190c/FLAGa931a150d [2022-01-18 09:16:27,931 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 09:16:27,932 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037.i [2022-01-18 09:16:27,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebfd1d901/69e1375467114c0fbad3e1faa659190c/FLAGa931a150d [2022-01-18 09:16:28,325 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebfd1d901/69e1375467114c0fbad3e1faa659190c [2022-01-18 09:16:28,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 09:16:28,329 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 09:16:28,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 09:16:28,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 09:16:28,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 09:16:28,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:16:28" (1/1) ... [2022-01-18 09:16:28,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65781c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:28, skipping insertion in model container [2022-01-18 09:16:28,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:16:28" (1/1) ... [2022-01-18 09:16:28,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 09:16:28,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 09:16:28,547 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/safe037.i[941,954] [2022-01-18 09:16:28,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:16:28,681 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 09:16:28,690 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/safe037.i[941,954] [2022-01-18 09:16:28,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:16:28,747 INFO L208 MainTranslator]: Completed translation [2022-01-18 09:16:28,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:28 WrapperNode [2022-01-18 09:16:28,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 09:16:28,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 09:16:28,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 09:16:28,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 09:16:28,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:28" (1/1) ... [2022-01-18 09:16:28,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:28" (1/1) ... [2022-01-18 09:16:28,795 INFO L137 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-01-18 09:16:28,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 09:16:28,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 09:16:28,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 09:16:28,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 09:16:28,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:28" (1/1) ... [2022-01-18 09:16:28,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:28" (1/1) ... [2022-01-18 09:16:28,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:28" (1/1) ... [2022-01-18 09:16:28,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:28" (1/1) ... [2022-01-18 09:16:28,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:28" (1/1) ... [2022-01-18 09:16:28,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:28" (1/1) ... [2022-01-18 09:16:28,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:28" (1/1) ... [2022-01-18 09:16:28,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 09:16:28,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 09:16:28,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 09:16:28,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 09:16:28,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:28" (1/1) ... [2022-01-18 09:16:28,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:16:28,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:16:28,859 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 09:16:28,897 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 09:16:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 09:16:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 09:16:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 09:16:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 09:16:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 09:16:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-01-18 09:16:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-01-18 09:16:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-01-18 09:16:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-01-18 09:16:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-01-18 09:16:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-01-18 09:16:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 09:16:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 09:16:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 09:16:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 09:16:28,913 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 09:16:29,035 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 09:16:29,036 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 09:16:29,157 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 09:16:29,162 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 09:16:29,162 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 09:16:29,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:16:29 BoogieIcfgContainer [2022-01-18 09:16:29,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 09:16:29,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 09:16:29,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 09:16:29,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 09:16:29,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 09:16:28" (1/3) ... [2022-01-18 09:16:29,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76461958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:16:29, skipping insertion in model container [2022-01-18 09:16:29,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:16:28" (2/3) ... [2022-01-18 09:16:29,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76461958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:16:29, skipping insertion in model container [2022-01-18 09:16:29,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:16:29" (3/3) ... [2022-01-18 09:16:29,170 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037.i [2022-01-18 09:16:29,173 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 09:16:29,173 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 09:16:29,173 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 09:16:29,173 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 09:16:29,194 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,194 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,195 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,195 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,195 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,195 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,195 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,195 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,196 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,196 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,196 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,196 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,196 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,196 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,196 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,197 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,197 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,197 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,197 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,197 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,197 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,197 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,198 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,198 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,198 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,198 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,198 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,198 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,198 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,198 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,199 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,199 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,199 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,199 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,199 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,199 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,201 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,202 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,202 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,202 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,203 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,204 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,204 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,204 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,204 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,205 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,205 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,205 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:16:29,205 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 09:16:29,233 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 09:16:29,237 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 09:16:29,238 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 09:16:29,245 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 93 transitions, 201 flow [2022-01-18 09:16:29,434 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6592 states, 6591 states have (on average 3.5044758003337884) internal successors, (23098), 6591 states have internal predecessors, (23098), 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 09:16:29,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 6592 states, 6591 states have (on average 3.5044758003337884) internal successors, (23098), 6591 states have internal predecessors, (23098), 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 09:16:29,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-18 09:16:29,489 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:16:29,490 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, 1, 1] [2022-01-18 09:16:29,491 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 09:16:29,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:16:29,497 INFO L85 PathProgramCache]: Analyzing trace with hash -595819856, now seen corresponding path program 1 times [2022-01-18 09:16:29,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:16:29,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712068617] [2022-01-18 09:16:29,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:16:29,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:16:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:16:29,846 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 09:16:29,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:16:29,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712068617] [2022-01-18 09:16:29,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712068617] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:16:29,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:16:29,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 09:16:29,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887148982] [2022-01-18 09:16:29,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:16:29,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 09:16:29,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:16:29,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 09:16:29,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 09:16:29,904 INFO L87 Difference]: Start difference. First operand has 6592 states, 6591 states have (on average 3.5044758003337884) internal successors, (23098), 6591 states have internal predecessors, (23098), 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 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 09:16:30,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:16:30,154 INFO L93 Difference]: Finished difference Result 7690 states and 25986 transitions. [2022-01-18 09:16:30,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 09:16:30,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 56 [2022-01-18 09:16:30,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:16:30,201 INFO L225 Difference]: With dead ends: 7690 [2022-01-18 09:16:30,202 INFO L226 Difference]: Without dead ends: 5353 [2022-01-18 09:16:30,204 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 09:16:30,207 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 171 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:16:30,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 401 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:16:30,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5353 states. [2022-01-18 09:16:30,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5353 to 5353. [2022-01-18 09:16:30,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5353 states, 5352 states have (on average 3.353139013452915) internal successors, (17946), 5352 states have internal predecessors, (17946), 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 09:16:30,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5353 states to 5353 states and 17946 transitions. [2022-01-18 09:16:30,423 INFO L78 Accepts]: Start accepts. Automaton has 5353 states and 17946 transitions. Word has length 56 [2022-01-18 09:16:30,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:16:30,424 INFO L470 AbstractCegarLoop]: Abstraction has 5353 states and 17946 transitions. [2022-01-18 09:16:30,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 09:16:30,426 INFO L276 IsEmpty]: Start isEmpty. Operand 5353 states and 17946 transitions. [2022-01-18 09:16:30,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-18 09:16:30,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:16:30,438 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, 1, 1, 1, 1, 1, 1] [2022-01-18 09:16:30,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 09:16:30,439 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 09:16:30,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:16:30,440 INFO L85 PathProgramCache]: Analyzing trace with hash -28491214, now seen corresponding path program 1 times [2022-01-18 09:16:30,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:16:30,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430139760] [2022-01-18 09:16:30,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:16:30,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:16:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:16:30,586 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 09:16:30,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:16:30,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430139760] [2022-01-18 09:16:30,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430139760] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:16:30,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:16:30,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 09:16:30,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158533986] [2022-01-18 09:16:30,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:16:30,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 09:16:30,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:16:30,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 09:16:30,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-18 09:16:30,590 INFO L87 Difference]: Start difference. First operand 5353 states and 17946 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 09:16:30,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:16:30,795 INFO L93 Difference]: Finished difference Result 4732 states and 15264 transitions. [2022-01-18 09:16:30,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 09:16:30,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 60 [2022-01-18 09:16:30,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:16:30,809 INFO L225 Difference]: With dead ends: 4732 [2022-01-18 09:16:30,809 INFO L226 Difference]: Without dead ends: 3337 [2022-01-18 09:16:30,812 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 09:16:30,813 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 231 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:16:30,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 434 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:16:30,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3337 states. [2022-01-18 09:16:30,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3337 to 3337. [2022-01-18 09:16:30,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3337 states, 3336 states have (on average 3.1636690647482015) internal successors, (10554), 3336 states have internal predecessors, (10554), 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 09:16:30,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3337 states to 3337 states and 10554 transitions. [2022-01-18 09:16:30,887 INFO L78 Accepts]: Start accepts. Automaton has 3337 states and 10554 transitions. Word has length 60 [2022-01-18 09:16:30,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:16:30,888 INFO L470 AbstractCegarLoop]: Abstraction has 3337 states and 10554 transitions. [2022-01-18 09:16:30,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 09:16:30,889 INFO L276 IsEmpty]: Start isEmpty. Operand 3337 states and 10554 transitions. [2022-01-18 09:16:30,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-18 09:16:30,895 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:16:30,895 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:16:30,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 09:16:30,895 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 09:16:30,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:16:30,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1805351152, now seen corresponding path program 1 times [2022-01-18 09:16:30,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:16:30,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123555577] [2022-01-18 09:16:30,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:16:30,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:16:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:16:31,037 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 09:16:31,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:16:31,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123555577] [2022-01-18 09:16:31,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123555577] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:16:31,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:16:31,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 09:16:31,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599325693] [2022-01-18 09:16:31,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:16:31,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 09:16:31,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:16:31,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 09:16:31,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 09:16:31,039 INFO L87 Difference]: Start difference. First operand 3337 states and 10554 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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 09:16:31,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:16:31,193 INFO L93 Difference]: Finished difference Result 2500 states and 7692 transitions. [2022-01-18 09:16:31,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 09:16:31,193 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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 64 [2022-01-18 09:16:31,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:16:31,200 INFO L225 Difference]: With dead ends: 2500 [2022-01-18 09:16:31,200 INFO L226 Difference]: Without dead ends: 1825 [2022-01-18 09:16:31,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-01-18 09:16:31,201 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 302 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:16:31,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 391 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:16:31,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1825 states. [2022-01-18 09:16:31,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1825. [2022-01-18 09:16:31,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1825 states, 1824 states have (on average 3.023026315789474) internal successors, (5514), 1824 states have internal predecessors, (5514), 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 09:16:31,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 5514 transitions. [2022-01-18 09:16:31,235 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 5514 transitions. Word has length 64 [2022-01-18 09:16:31,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:16:31,235 INFO L470 AbstractCegarLoop]: Abstraction has 1825 states and 5514 transitions. [2022-01-18 09:16:31,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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 09:16:31,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 5514 transitions. [2022-01-18 09:16:31,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-18 09:16:31,239 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:16:31,239 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:16:31,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 09:16:31,240 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 09:16:31,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:16:31,240 INFO L85 PathProgramCache]: Analyzing trace with hash 824790514, now seen corresponding path program 1 times [2022-01-18 09:16:31,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:16:31,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161924864] [2022-01-18 09:16:31,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:16:31,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:16:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:16:31,329 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 09:16:31,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:16:31,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161924864] [2022-01-18 09:16:31,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161924864] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:16:31,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:16:31,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 09:16:31,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886097499] [2022-01-18 09:16:31,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:16:31,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 09:16:31,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:16:31,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 09:16:31,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-18 09:16:31,331 INFO L87 Difference]: Start difference. First operand 1825 states and 5514 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 09:16:31,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:16:31,396 INFO L93 Difference]: Finished difference Result 2569 states and 7777 transitions. [2022-01-18 09:16:31,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 09:16:31,397 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 68 [2022-01-18 09:16:31,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:16:31,401 INFO L225 Difference]: With dead ends: 2569 [2022-01-18 09:16:31,402 INFO L226 Difference]: Without dead ends: 1230 [2022-01-18 09:16:31,402 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 09:16:31,403 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 78 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:16:31,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 597 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:16:31,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2022-01-18 09:16:31,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1230. [2022-01-18 09:16:31,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 1229 states have (on average 2.9568755085435314) internal successors, (3634), 1229 states have internal predecessors, (3634), 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 09:16:31,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 3634 transitions. [2022-01-18 09:16:31,423 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 3634 transitions. Word has length 68 [2022-01-18 09:16:31,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:16:31,423 INFO L470 AbstractCegarLoop]: Abstraction has 1230 states and 3634 transitions. [2022-01-18 09:16:31,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 09:16:31,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 3634 transitions. [2022-01-18 09:16:31,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-18 09:16:31,425 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:16:31,426 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:16:31,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 09:16:31,426 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 09:16:31,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:16:31,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1120721894, now seen corresponding path program 2 times [2022-01-18 09:16:31,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:16:31,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996193552] [2022-01-18 09:16:31,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:16:31,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:16:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:16:31,518 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 09:16:31,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:16:31,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996193552] [2022-01-18 09:16:31,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996193552] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:16:31,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:16:31,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 09:16:31,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505928666] [2022-01-18 09:16:31,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:16:31,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 09:16:31,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:16:31,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 09:16:31,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-18 09:16:31,519 INFO L87 Difference]: Start difference. First operand 1230 states and 3634 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 09:16:31,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:16:31,584 INFO L93 Difference]: Finished difference Result 1794 states and 5318 transitions. [2022-01-18 09:16:31,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 09:16:31,585 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 68 [2022-01-18 09:16:31,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:16:31,589 INFO L225 Difference]: With dead ends: 1794 [2022-01-18 09:16:31,589 INFO L226 Difference]: Without dead ends: 890 [2022-01-18 09:16:31,589 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 09:16:31,591 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 78 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:16:31,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 555 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:16:31,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2022-01-18 09:16:31,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 890. [2022-01-18 09:16:31,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 890 states, 889 states have (on average 2.8785151856018) internal successors, (2559), 889 states have internal predecessors, (2559), 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 09:16:31,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 2559 transitions. [2022-01-18 09:16:31,605 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 2559 transitions. Word has length 68 [2022-01-18 09:16:31,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:16:31,606 INFO L470 AbstractCegarLoop]: Abstraction has 890 states and 2559 transitions. [2022-01-18 09:16:31,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 09:16:31,606 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 2559 transitions. [2022-01-18 09:16:31,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-18 09:16:31,607 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:16:31,608 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:16:31,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 09:16:31,608 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 09:16:31,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:16:31,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1261399206, now seen corresponding path program 3 times [2022-01-18 09:16:31,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:16:31,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750864970] [2022-01-18 09:16:31,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:16:31,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:16:31,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:16:31,704 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 09:16:31,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:16:31,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750864970] [2022-01-18 09:16:31,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750864970] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:16:31,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:16:31,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 09:16:31,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088012149] [2022-01-18 09:16:31,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:16:31,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 09:16:31,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:16:31,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 09:16:31,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-18 09:16:31,707 INFO L87 Difference]: Start difference. First operand 890 states and 2559 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 09:16:31,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:16:31,755 INFO L93 Difference]: Finished difference Result 836 states and 2397 transitions. [2022-01-18 09:16:31,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 09:16:31,755 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 68 [2022-01-18 09:16:31,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:16:31,755 INFO L225 Difference]: With dead ends: 836 [2022-01-18 09:16:31,755 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 09:16:31,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-18 09:16:31,757 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 61 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:16:31,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 436 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:16:31,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 09:16:31,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 09:16:31,759 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 09:16:31,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 09:16:31,760 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2022-01-18 09:16:31,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:16:31,760 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 09:16:31,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 09:16:31,760 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 09:16:31,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 09:16:31,762 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 09:16:31,762 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-18 09:16:31,762 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-18 09:16:31,762 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-18 09:16:31,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 09:16:31,764 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2022-01-18 09:16:31,765 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 09:16:31,766 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 09:16:31,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 09:16:31 BasicIcfg [2022-01-18 09:16:31,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 09:16:31,769 INFO L158 Benchmark]: Toolchain (without parser) took 3440.00ms. Allocated memory was 383.8MB in the beginning and 499.1MB in the end (delta: 115.3MB). Free memory was 331.9MB in the beginning and 298.2MB in the end (delta: 33.7MB). Peak memory consumption was 150.8MB. Max. memory is 16.0GB. [2022-01-18 09:16:31,769 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 383.8MB. Free memory is still 349.4MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 09:16:31,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.16ms. Allocated memory was 383.8MB in the beginning and 499.1MB in the end (delta: 115.3MB). Free memory was 331.7MB in the beginning and 462.6MB in the end (delta: -130.9MB). Peak memory consumption was 13.2MB. Max. memory is 16.0GB. [2022-01-18 09:16:31,769 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.24ms. Allocated memory is still 499.1MB. Free memory was 462.6MB in the beginning and 460.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 09:16:31,769 INFO L158 Benchmark]: Boogie Preprocessor took 33.25ms. Allocated memory is still 499.1MB. Free memory was 460.5MB in the beginning and 459.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 09:16:31,770 INFO L158 Benchmark]: RCFGBuilder took 334.33ms. Allocated memory is still 499.1MB. Free memory was 459.4MB in the beginning and 444.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-18 09:16:31,770 INFO L158 Benchmark]: TraceAbstraction took 2603.27ms. Allocated memory is still 499.1MB. Free memory was 444.8MB in the beginning and 298.2MB in the end (delta: 146.6MB). Peak memory consumption was 148.7MB. Max. memory is 16.0GB. [2022-01-18 09:16:31,771 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 383.8MB. Free memory is still 349.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 417.16ms. Allocated memory was 383.8MB in the beginning and 499.1MB in the end (delta: 115.3MB). Free memory was 331.7MB in the beginning and 462.6MB in the end (delta: -130.9MB). Peak memory consumption was 13.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 47.24ms. Allocated memory is still 499.1MB. Free memory was 462.6MB in the beginning and 460.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.25ms. Allocated memory is still 499.1MB. Free memory was 460.5MB in the beginning and 459.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 334.33ms. Allocated memory is still 499.1MB. Free memory was 459.4MB in the beginning and 444.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2603.27ms. Allocated memory is still 499.1MB. Free memory was 444.8MB in the beginning and 298.2MB in the end (delta: 146.6MB). Peak memory consumption was 148.7MB. 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 7 procedures, 116 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 921 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 921 mSDsluCounter, 2814 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2280 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 316 IncrementalHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 617 mSDtfsCounter, 316 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6592occurred in iteration=0, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 384 NumberOfCodeBlocks, 384 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 970 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 09:16:31,807 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...