/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-BasicCegarLoop.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 12:27:11,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 12:27:11,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 12:27:11,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-16 12:27:11,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-16 12:27:11,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-16 12:27:11,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-16 12:27:11,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-16 12:27:11,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-16 12:27:11,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-16 12:27:11,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-16 12:27:11,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-16 12:27:11,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-16 12:27:11,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-16 12:27:11,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-16 12:27:11,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-16 12:27:11,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-16 12:27:11,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-16 12:27:11,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-16 12:27:11,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-16 12:27:11,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-16 12:27:11,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-16 12:27:11,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-16 12:27:11,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-16 12:27:11,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-16 12:27:11,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-16 12:27:11,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-16 12:27:11,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-16 12:27:11,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-16 12:27:11,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-16 12:27:11,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-16 12:27:11,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-16 12:27:11,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-16 12:27:11,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-16 12:27:11,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-16 12:27:11,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-16 12:27:11,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-16 12:27:11,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-16 12:27:11,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 12:27:11,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 12:27:11,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 12:27:11,947 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-MCRwithDepranks-BasicCegarLoop.epf [2022-02-16 12:27:11,962 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 12:27:11,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 12:27:11,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 12:27:11,963 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 12:27:11,963 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 12:27:11,963 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 12:27:11,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 12:27:11,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 12:27:11,964 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 12:27:11,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 12:27:11,964 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 12:27:11,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 12:27:11,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 12:27:11,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 12:27:11,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 12:27:11,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 12:27:11,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 12:27:11,965 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 12:27:11,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 12:27:11,965 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 12:27:11,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 12:27:11,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 12:27:11,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 12:27:11,966 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 12:27:11,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 12:27:11,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 12:27:11,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 12:27:11,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 12:27:11,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 12:27:11,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 12:27:11,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 12:27:11,967 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 12:27:11,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 12:27:11,967 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-16 12:27:11,968 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 12:27:12,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 12:27:12,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 12:27:12,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 12:27:12,127 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-16 12:27:12,128 INFO L275 PluginConnector]: CDTParser initialized [2022-02-16 12:27:12,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.i [2022-02-16 12:27:12,170 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0741244/9ed7fe45422e42cbae2bc8422f109364/FLAG082e1e5e0 [2022-02-16 12:27:12,557 INFO L306 CDTParser]: Found 1 translation units. [2022-02-16 12:27:12,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.i [2022-02-16 12:27:12,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0741244/9ed7fe45422e42cbae2bc8422f109364/FLAG082e1e5e0 [2022-02-16 12:27:12,573 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0741244/9ed7fe45422e42cbae2bc8422f109364 [2022-02-16 12:27:12,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 12:27:12,575 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-16 12:27:12,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-16 12:27:12,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-16 12:27:12,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-16 12:27:12,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:27:12" (1/1) ... [2022-02-16 12:27:12,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:12, skipping insertion in model container [2022-02-16 12:27:12,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:27:12" (1/1) ... [2022-02-16 12:27:12,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-16 12:27:12,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-16 12:27:12,812 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/safe034_tso.i[945,958] [2022-02-16 12:27:13,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 12:27:13,023 INFO L203 MainTranslator]: Completed pre-run [2022-02-16 12:27:13,042 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/safe034_tso.i[945,958] [2022-02-16 12:27:13,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 12:27:13,132 INFO L208 MainTranslator]: Completed translation [2022-02-16 12:27:13,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:13 WrapperNode [2022-02-16 12:27:13,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-16 12:27:13,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 12:27:13,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 12:27:13,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 12:27:13,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:13" (1/1) ... [2022-02-16 12:27:13,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:13" (1/1) ... [2022-02-16 12:27:13,211 INFO L137 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-02-16 12:27:13,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 12:27:13,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 12:27:13,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 12:27:13,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 12:27:13,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:13" (1/1) ... [2022-02-16 12:27:13,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:13" (1/1) ... [2022-02-16 12:27:13,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:13" (1/1) ... [2022-02-16 12:27:13,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:13" (1/1) ... [2022-02-16 12:27:13,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:13" (1/1) ... [2022-02-16 12:27:13,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:13" (1/1) ... [2022-02-16 12:27:13,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:13" (1/1) ... [2022-02-16 12:27:13,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 12:27:13,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 12:27:13,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 12:27:13,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 12:27:13,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:13" (1/1) ... [2022-02-16 12:27:13,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 12:27:13,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 12:27:13,305 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) [2022-02-16 12:27:13,323 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 [2022-02-16 12:27:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-16 12:27:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-16 12:27:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-16 12:27:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-16 12:27:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-16 12:27:13,336 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-02-16 12:27:13,336 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-02-16 12:27:13,337 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-02-16 12:27:13,337 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-02-16 12:27:13,337 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-02-16 12:27:13,337 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-02-16 12:27:13,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-16 12:27:13,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-16 12:27:13,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 12:27:13,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 12:27:13,338 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 12:27:13,471 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 12:27:13,472 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 12:27:13,684 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 12:27:13,689 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 12:27:13,689 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 12:27:13,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:27:13 BoogieIcfgContainer [2022-02-16 12:27:13,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 12:27:13,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 12:27:13,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 12:27:13,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 12:27:13,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 12:27:12" (1/3) ... [2022-02-16 12:27:13,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368c8c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:27:13, skipping insertion in model container [2022-02-16 12:27:13,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:27:13" (2/3) ... [2022-02-16 12:27:13,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368c8c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:27:13, skipping insertion in model container [2022-02-16 12:27:13,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:27:13" (3/3) ... [2022-02-16 12:27:13,696 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_tso.i [2022-02-16 12:27:13,699 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 12:27:13,699 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 12:27:13,699 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 12:27:13,700 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 12:27:13,720 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,720 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,720 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,720 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,721 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,721 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,721 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,721 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,721 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,721 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,722 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,722 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,722 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,722 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,722 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,722 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,722 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,722 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,722 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,723 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,723 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,723 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,723 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,723 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,723 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,724 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,724 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,724 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,724 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,724 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,724 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,724 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,724 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,724 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,725 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,725 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,727 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,727 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,727 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,727 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,729 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,729 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,729 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,729 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,730 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,730 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,730 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,730 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:27:13,730 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-16 12:27:13,758 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 12:27:13,762 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, mLazyFiniteAutomaton=false, 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 [2022-02-16 12:27:13,762 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-16 12:27:13,769 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 92 transitions, 199 flow [2022-02-16 12:27:13,991 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 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) [2022-02-16 12:28:06,362 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 982632 transitions and produced 316679 states. [2022-02-16 12:28:09,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 316679 states, 231422 states have (on average 1.3691524574154574) internal successors, (316852), 316678 states have internal predecessors, (316852), 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) [2022-02-16 12:28:10,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-02-16 12:28:10,348 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:28:10,349 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] [2022-02-16 12:28:10,349 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 12:28:10,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:28:10,353 INFO L85 PathProgramCache]: Analyzing trace with hash 62426180, now seen corresponding path program 1 times [2022-02-16 12:28:10,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:28:10,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012740464] [2022-02-16 12:28:10,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:28:10,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:28:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:28:10,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:28:10,630 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:28:10,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012740464] [2022-02-16 12:28:10,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012740464] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:28:10,631 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:28:10,631 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 12:28:10,633 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552456435] [2022-02-16 12:28:10,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:28:10,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 12:28:10,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:28:10,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 12:28:10,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-16 12:28:16,133 INFO L87 Difference]: Start difference. First operand has 316679 states, 231422 states have (on average 1.3691524574154574) internal successors, (316852), 316678 states have internal predecessors, (316852), 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 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2022-02-16 12:28:23,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:28:23,100 INFO L93 Difference]: Finished difference Result 178533 states and 178545 transitions. [2022-02-16 12:28:23,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 12:28:23,102 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 55 [2022-02-16 12:28:23,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:28:23,207 INFO L225 Difference]: With dead ends: 178533 [2022-02-16 12:28:23,207 INFO L226 Difference]: Without dead ends: 22424 [2022-02-16 12:28:23,209 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 [2022-02-16 12:28:23,211 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 103 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:28:23,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 467 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:28:23,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22424 states. [2022-02-16 12:28:23,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22424 to 2673. [2022-02-16 12:28:23,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2673 states, 2624 states have (on average 1.1989329268292683) internal successors, (3146), 2672 states have internal predecessors, (3146), 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) [2022-02-16 12:28:23,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 3146 transitions. [2022-02-16 12:28:23,450 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 3146 transitions. Word has length 55 [2022-02-16 12:28:23,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:28:23,451 INFO L470 AbstractCegarLoop]: Abstraction has 2673 states and 3146 transitions. [2022-02-16 12:28:23,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2022-02-16 12:28:23,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 3146 transitions. [2022-02-16 12:28:23,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-02-16 12:28:23,455 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:28:23,455 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] [2022-02-16 12:28:23,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-16 12:28:23,455 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 12:28:23,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:28:23,457 INFO L85 PathProgramCache]: Analyzing trace with hash -948596573, now seen corresponding path program 1 times [2022-02-16 12:28:23,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:28:23,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732125792] [2022-02-16 12:28:23,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:28:23,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:28:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:28:23,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:28:23,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:28:23,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732125792] [2022-02-16 12:28:23,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732125792] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:28:23,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:28:23,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 12:28:23,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122966842] [2022-02-16 12:28:23,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:28:23,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 12:28:23,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:28:23,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 12:28:23,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-16 12:28:23,620 INFO L87 Difference]: Start difference. First operand 2673 states and 3146 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2022-02-16 12:28:23,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:28:23,687 INFO L93 Difference]: Finished difference Result 2341 states and 2727 transitions. [2022-02-16 12:28:23,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-16 12:28:23,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 57 [2022-02-16 12:28:23,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:28:23,710 INFO L225 Difference]: With dead ends: 2341 [2022-02-16 12:28:23,710 INFO L226 Difference]: Without dead ends: 2336 [2022-02-16 12:28:23,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-02-16 12:28:23,711 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 70 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:28:23,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 265 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:28:23,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2022-02-16 12:28:23,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2022-02-16 12:28:23,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2287 states have (on average 1.190205509400962) internal successors, (2722), 2335 states have internal predecessors, (2722), 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) [2022-02-16 12:28:23,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 2722 transitions. [2022-02-16 12:28:23,759 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 2722 transitions. Word has length 57 [2022-02-16 12:28:23,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:28:23,759 INFO L470 AbstractCegarLoop]: Abstraction has 2336 states and 2722 transitions. [2022-02-16 12:28:23,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2022-02-16 12:28:23,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 2722 transitions. [2022-02-16 12:28:23,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-16 12:28:23,761 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:28:23,761 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] [2022-02-16 12:28:23,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-16 12:28:23,762 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 12:28:23,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:28:23,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1432008762, now seen corresponding path program 1 times [2022-02-16 12:28:23,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:28:23,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048088200] [2022-02-16 12:28:23,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:28:23,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:28:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:28:23,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:28:23,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:28:23,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048088200] [2022-02-16 12:28:23,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048088200] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:28:23,875 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:28:23,875 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 12:28:23,875 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890356630] [2022-02-16 12:28:23,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:28:23,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 12:28:23,875 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:28:23,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 12:28:23,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-16 12:28:23,876 INFO L87 Difference]: Start difference. First operand 2336 states and 2722 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2022-02-16 12:28:23,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:28:23,938 INFO L93 Difference]: Finished difference Result 2972 states and 3276 transitions. [2022-02-16 12:28:23,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 12:28:23,939 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 59 [2022-02-16 12:28:23,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:28:23,942 INFO L225 Difference]: With dead ends: 2972 [2022-02-16 12:28:23,942 INFO L226 Difference]: Without dead ends: 1703 [2022-02-16 12:28:23,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-02-16 12:28:23,943 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 17 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:28:23,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 396 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:28:23,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2022-02-16 12:28:23,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1601. [2022-02-16 12:28:23,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1566 states have (on average 1.1660280970625798) internal successors, (1826), 1600 states have internal predecessors, (1826), 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) [2022-02-16 12:28:23,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 1826 transitions. [2022-02-16 12:28:23,963 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 1826 transitions. Word has length 59 [2022-02-16 12:28:23,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:28:23,963 INFO L470 AbstractCegarLoop]: Abstraction has 1601 states and 1826 transitions. [2022-02-16 12:28:23,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2022-02-16 12:28:23,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 1826 transitions. [2022-02-16 12:28:23,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-16 12:28:23,964 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:28:23,964 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] [2022-02-16 12:28:23,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-16 12:28:23,965 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 12:28:23,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:28:23,965 INFO L85 PathProgramCache]: Analyzing trace with hash -491199290, now seen corresponding path program 1 times [2022-02-16 12:28:23,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:28:23,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964888581] [2022-02-16 12:28:23,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:28:23,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:28:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:28:24,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:28:24,083 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:28:24,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964888581] [2022-02-16 12:28:24,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964888581] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:28:24,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:28:24,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-16 12:28:24,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330830121] [2022-02-16 12:28:24,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:28:24,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-16 12:28:24,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:28:24,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-16 12:28:24,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-16 12:28:24,091 INFO L87 Difference]: Start difference. First operand 1601 states and 1826 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2022-02-16 12:28:24,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:28:24,148 INFO L93 Difference]: Finished difference Result 1212 states and 1346 transitions. [2022-02-16 12:28:24,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-16 12:28:24,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 59 [2022-02-16 12:28:24,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:28:24,156 INFO L225 Difference]: With dead ends: 1212 [2022-02-16 12:28:24,156 INFO L226 Difference]: Without dead ends: 1098 [2022-02-16 12:28:24,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-02-16 12:28:24,159 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 118 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:28:24,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 288 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:28:24,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2022-02-16 12:28:24,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1098. [2022-02-16 12:28:24,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 1071 states have (on average 1.1503267973856208) internal successors, (1232), 1097 states have internal predecessors, (1232), 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) [2022-02-16 12:28:24,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1232 transitions. [2022-02-16 12:28:24,173 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1232 transitions. Word has length 59 [2022-02-16 12:28:24,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:28:24,174 INFO L470 AbstractCegarLoop]: Abstraction has 1098 states and 1232 transitions. [2022-02-16 12:28:24,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2022-02-16 12:28:24,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1232 transitions. [2022-02-16 12:28:24,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-16 12:28:24,177 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:28:24,177 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] [2022-02-16 12:28:24,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-16 12:28:24,178 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 12:28:24,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:28:24,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1562068162, now seen corresponding path program 1 times [2022-02-16 12:28:24,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:28:24,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088025696] [2022-02-16 12:28:24,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:28:24,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:28:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:28:24,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:28:24,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:28:24,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088025696] [2022-02-16 12:28:24,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088025696] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:28:24,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:28:24,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-16 12:28:24,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479164269] [2022-02-16 12:28:24,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:28:24,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-16 12:28:24,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:28:24,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-16 12:28:24,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-02-16 12:28:24,309 INFO L87 Difference]: Start difference. First operand 1098 states and 1232 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 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) [2022-02-16 12:28:24,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:28:24,379 INFO L93 Difference]: Finished difference Result 659 states and 715 transitions. [2022-02-16 12:28:24,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 12:28:24,380 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 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 63 [2022-02-16 12:28:24,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:28:24,381 INFO L225 Difference]: With dead ends: 659 [2022-02-16 12:28:24,381 INFO L226 Difference]: Without dead ends: 383 [2022-02-16 12:28:24,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-02-16 12:28:24,382 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 122 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:28:24,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 283 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:28:24,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-02-16 12:28:24,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 381. [2022-02-16 12:28:24,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 372 states have (on average 1.1505376344086022) internal successors, (428), 380 states have internal predecessors, (428), 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) [2022-02-16 12:28:24,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 428 transitions. [2022-02-16 12:28:24,388 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 428 transitions. Word has length 63 [2022-02-16 12:28:24,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:28:24,388 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 428 transitions. [2022-02-16 12:28:24,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 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) [2022-02-16 12:28:24,388 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 428 transitions. [2022-02-16 12:28:24,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-16 12:28:24,389 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:28:24,389 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] [2022-02-16 12:28:24,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-16 12:28:24,389 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 12:28:24,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:28:24,391 INFO L85 PathProgramCache]: Analyzing trace with hash 24267516, now seen corresponding path program 1 times [2022-02-16 12:28:24,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:28:24,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130419529] [2022-02-16 12:28:24,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:28:24,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:28:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:28:24,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:28:24,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:28:24,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130419529] [2022-02-16 12:28:24,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130419529] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:28:24,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:28:24,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-16 12:28:24,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559181879] [2022-02-16 12:28:24,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:28:24,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-16 12:28:24,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:28:24,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-16 12:28:24,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-16 12:28:24,486 INFO L87 Difference]: Start difference. First operand 381 states and 428 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2022-02-16 12:28:24,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:28:24,553 INFO L93 Difference]: Finished difference Result 604 states and 642 transitions. [2022-02-16 12:28:24,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-16 12:28:24,553 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 67 [2022-02-16 12:28:24,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:28:24,554 INFO L225 Difference]: With dead ends: 604 [2022-02-16 12:28:24,554 INFO L226 Difference]: Without dead ends: 336 [2022-02-16 12:28:24,554 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 [2022-02-16 12:28:24,555 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 53 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:28:24,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 408 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:28:24,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-02-16 12:28:24,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2022-02-16 12:28:24,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 327 states have (on average 1.0948012232415902) internal successors, (358), 335 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 12:28:24,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 358 transitions. [2022-02-16 12:28:24,560 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 358 transitions. Word has length 67 [2022-02-16 12:28:24,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:28:24,560 INFO L470 AbstractCegarLoop]: Abstraction has 336 states and 358 transitions. [2022-02-16 12:28:24,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2022-02-16 12:28:24,560 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 358 transitions. [2022-02-16 12:28:24,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-16 12:28:24,560 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:28:24,561 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] [2022-02-16 12:28:24,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-16 12:28:24,561 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 12:28:24,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:28:24,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2004978352, now seen corresponding path program 2 times [2022-02-16 12:28:24,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:28:24,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623728464] [2022-02-16 12:28:24,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:28:24,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:28:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:28:24,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:28:24,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:28:24,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623728464] [2022-02-16 12:28:24,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623728464] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:28:24,624 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:28:24,624 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-16 12:28:24,624 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560049839] [2022-02-16 12:28:24,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:28:24,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-16 12:28:24,625 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:28:24,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-16 12:28:24,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-16 12:28:24,625 INFO L87 Difference]: Start difference. First operand 336 states and 358 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2022-02-16 12:28:24,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:28:24,676 INFO L93 Difference]: Finished difference Result 279 states and 278 transitions. [2022-02-16 12:28:24,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-16 12:28:24,677 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 67 [2022-02-16 12:28:24,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:28:24,677 INFO L225 Difference]: With dead ends: 279 [2022-02-16 12:28:24,677 INFO L226 Difference]: Without dead ends: 0 [2022-02-16 12:28:24,677 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 [2022-02-16 12:28:24,678 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 33 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 328 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 [2022-02-16 12:28:24,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 328 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:28:24,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-16 12:28:24,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-16 12:28:24,678 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) [2022-02-16 12:28:24,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-16 12:28:24,679 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2022-02-16 12:28:24,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:28:24,679 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-16 12:28:24,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2022-02-16 12:28:24,679 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-16 12:28:24,679 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-16 12:28:24,681 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-02-16 12:28:24,681 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-16 12:28:24,681 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-16 12:28:24,681 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-16 12:28:24,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-16 12:28:24,683 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-02-16 12:28:24,684 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 12:28:24,684 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 12:28:24,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 12:28:24 BasicIcfg [2022-02-16 12:28:24,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 12:28:24,686 INFO L158 Benchmark]: Toolchain (without parser) took 72111.15ms. Allocated memory was 199.2MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 146.9MB in the beginning and 5.1GB in the end (delta: -5.0GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2022-02-16 12:28:24,687 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 199.2MB. Free memory is still 164.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 12:28:24,687 INFO L158 Benchmark]: CACSL2BoogieTranslator took 556.27ms. Allocated memory is still 199.2MB. Free memory was 146.6MB in the beginning and 165.7MB in the end (delta: -19.1MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2022-02-16 12:28:24,687 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.36ms. Allocated memory is still 199.2MB. Free memory was 165.7MB in the beginning and 163.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-16 12:28:24,687 INFO L158 Benchmark]: Boogie Preprocessor took 24.92ms. Allocated memory is still 199.2MB. Free memory was 163.1MB in the beginning and 162.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 12:28:24,687 INFO L158 Benchmark]: RCFGBuilder took 445.09ms. Allocated memory is still 199.2MB. Free memory was 162.0MB in the beginning and 148.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-16 12:28:24,687 INFO L158 Benchmark]: TraceAbstraction took 70994.29ms. Allocated memory was 199.2MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 148.4MB in the beginning and 5.1GB in the end (delta: -5.0GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2022-02-16 12:28:24,688 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 199.2MB. Free memory is still 164.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 556.27ms. Allocated memory is still 199.2MB. Free memory was 146.6MB in the beginning and 165.7MB in the end (delta: -19.1MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 78.36ms. Allocated memory is still 199.2MB. Free memory was 165.7MB in the beginning and 163.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.92ms. Allocated memory is still 199.2MB. Free memory was 163.1MB in the beginning and 162.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 445.09ms. Allocated memory is still 199.2MB. Free memory was 162.0MB in the beginning and 148.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 70994.29ms. Allocated memory was 199.2MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 148.4MB in the beginning and 5.1GB in the end (delta: -5.0GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0 - 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, 115 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 70.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 4.0s, AutomataDifference: 13.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 52.6s, PartialOrderReductionTime: 52.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 516 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 516 mSDsluCounter, 2435 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1971 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 261 IncrementalHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 533 mSDtfsCounter, 261 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=316679occurred in iteration=0, InterpolantAutomatonStates: 53, 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, 7 MinimizatonAttempts, 19855 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 427 NumberOfCodeBlocks, 427 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 420 ConstructedInterpolants, 0 QuantifiedInterpolants, 1048 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2022-02-16 12:28:24,729 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...