/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-18 13:36:54,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 13:36:54,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 13:36:54,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-18 13:36:54,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-18 13:36:54,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-18 13:36:54,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-18 13:36:54,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-18 13:36:54,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-18 13:36:54,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-18 13:36:54,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-18 13:36:54,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-18 13:36:54,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-18 13:36:54,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-18 13:36:54,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-18 13:36:54,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-18 13:36:54,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-18 13:36:54,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-18 13:36:54,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-18 13:36:54,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-18 13:36:54,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-18 13:36:54,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-18 13:36:54,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-18 13:36:54,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-18 13:36:54,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-18 13:36:54,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-18 13:36:54,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-18 13:36:54,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-18 13:36:54,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-18 13:36:54,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-18 13:36:54,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-18 13:36:54,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-18 13:36:54,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-18 13:36:54,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-18 13:36:54,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-18 13:36:54,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-18 13:36:54,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-18 13:36:54,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-18 13:36:54,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-18 13:36:54,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-18 13:36:54,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-18 13:36:54,480 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-18 13:36:54,507 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 13:36:54,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 13:36:54,507 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 13:36:54,507 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 13:36:54,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 13:36:54,508 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 13:36:54,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 13:36:54,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 13:36:54,508 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 13:36:54,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 13:36:54,509 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 13:36:54,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 13:36:54,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 13:36:54,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 13:36:54,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 13:36:54,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 13:36:54,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 13:36:54,509 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 13:36:54,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 13:36:54,509 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 13:36:54,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 13:36:54,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 13:36:54,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 13:36:54,510 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 13:36:54,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 13:36:54,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 13:36:54,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 13:36:54,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 13:36:54,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 13:36:54,510 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 13:36:54,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 13:36:54,510 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 13:36:54,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 13:36:54,510 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 13:36:54,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 13:36:54,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 13:36:54,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 13:36:54,714 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-18 13:36:54,717 INFO L275 PluginConnector]: CDTParser initialized [2022-02-18 13:36:54,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-02-18 13:36:54,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25c579fcf/1e334c16417e4a969e84c285c1d16b9c/FLAG34e6718ac [2022-02-18 13:36:55,173 INFO L306 CDTParser]: Found 1 translation units. [2022-02-18 13:36:55,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-02-18 13:36:55,187 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25c579fcf/1e334c16417e4a969e84c285c1d16b9c/FLAG34e6718ac [2022-02-18 13:36:55,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25c579fcf/1e334c16417e4a969e84c285c1d16b9c [2022-02-18 13:36:55,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 13:36:55,540 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-18 13:36:55,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-18 13:36:55,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-18 13:36:55,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-18 13:36:55,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:36:55" (1/1) ... [2022-02-18 13:36:55,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d14c6e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:36:55, skipping insertion in model container [2022-02-18 13:36:55,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:36:55" (1/1) ... [2022-02-18 13:36:55,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-18 13:36:55,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-18 13:36:55,727 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/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-02-18 13:36:55,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 13:36:55,828 INFO L203 MainTranslator]: Completed pre-run [2022-02-18 13:36:55,839 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/safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-02-18 13:36:55,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 13:36:55,909 INFO L208 MainTranslator]: Completed translation [2022-02-18 13:36:55,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:36:55 WrapperNode [2022-02-18 13:36:55,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-18 13:36:55,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 13:36:55,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 13:36:55,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 13:36:55,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:36:55" (1/1) ... [2022-02-18 13:36:55,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:36:55" (1/1) ... [2022-02-18 13:36:55,959 INFO L137 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-02-18 13:36:55,959 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 13:36:55,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 13:36:55,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 13:36:55,960 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 13:36:55,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:36:55" (1/1) ... [2022-02-18 13:36:55,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:36:55" (1/1) ... [2022-02-18 13:36:55,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:36:55" (1/1) ... [2022-02-18 13:36:55,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:36:55" (1/1) ... [2022-02-18 13:36:55,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:36:55" (1/1) ... [2022-02-18 13:36:55,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:36:55" (1/1) ... [2022-02-18 13:36:55,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:36:55" (1/1) ... [2022-02-18 13:36:55,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 13:36:55,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 13:36:55,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 13:36:55,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 13:36:55,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:36:55" (1/1) ... [2022-02-18 13:36:56,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 13:36:56,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 13:36:56,021 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) [2022-02-18 13:36:56,039 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 [2022-02-18 13:36:56,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-18 13:36:56,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-18 13:36:56,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-18 13:36:56,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-18 13:36:56,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-18 13:36:56,057 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-02-18 13:36:56,057 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-02-18 13:36:56,057 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-02-18 13:36:56,057 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-02-18 13:36:56,057 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-02-18 13:36:56,057 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-02-18 13:36:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-18 13:36:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-18 13:36:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 13:36:56,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 13:36:56,059 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 13:36:56,151 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 13:36:56,153 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 13:36:56,290 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 13:36:56,295 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 13:36:56,296 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-18 13:36:56,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:36:56 BoogieIcfgContainer [2022-02-18 13:36:56,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 13:36:56,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 13:36:56,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 13:36:56,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 13:36:56,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 01:36:55" (1/3) ... [2022-02-18 13:36:56,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb9761b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:36:56, skipping insertion in model container [2022-02-18 13:36:56,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:36:55" (2/3) ... [2022-02-18 13:36:56,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb9761b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:36:56, skipping insertion in model container [2022-02-18 13:36:56,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:36:56" (3/3) ... [2022-02-18 13:36:56,303 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-02-18 13:36:56,307 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 13:36:56,307 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 13:36:56,307 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-18 13:36:56,307 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 13:36:56,332 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,333 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,333 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,333 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,333 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,333 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,333 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,333 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,334 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,334 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,334 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,334 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,335 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,335 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,335 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,335 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,335 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,335 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,335 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,335 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,336 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,336 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,336 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,336 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,336 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,337 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,337 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,337 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,337 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,337 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,337 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,337 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,338 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,338 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,338 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,338 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,348 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,348 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,348 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,349 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,351 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,351 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,351 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,351 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,352 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,352 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,352 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,352 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:36:56,352 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-18 13:36:56,382 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 13:36:56,387 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-18 13:36:56,387 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-18 13:36:56,395 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 92 transitions, 199 flow [2022-02-18 13:36:56,660 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) [2022-02-18 13:36:56,682 INFO L276 IsEmpty]: Start isEmpty. Operand 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) [2022-02-18 13:36:56,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-02-18 13:36:56,715 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:36:56,716 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] [2022-02-18 13:36:56,716 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 13:36:56,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:36:56,720 INFO L85 PathProgramCache]: Analyzing trace with hash -669003802, now seen corresponding path program 1 times [2022-02-18 13:36:56,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:36:56,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683367297] [2022-02-18 13:36:56,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:36:56,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:36:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:36:57,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:36:57,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:36:57,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683367297] [2022-02-18 13:36:57,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683367297] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:36:57,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:36:57,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 13:36:57,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603293700] [2022-02-18 13:36:57,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:36:57,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 13:36:57,184 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:36:57,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 13:36:57,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-18 13:36:57,238 INFO L87 Difference]: Start difference. First operand 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) Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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) [2022-02-18 13:36:57,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:36:57,599 INFO L93 Difference]: Finished difference Result 11877 states and 40253 transitions. [2022-02-18 13:36:57,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 13:36:57,602 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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 [2022-02-18 13:36:57,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:36:57,758 INFO L225 Difference]: With dead ends: 11877 [2022-02-18 13:36:57,759 INFO L226 Difference]: Without dead ends: 7945 [2022-02-18 13:36:57,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-18 13:36:57,765 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 209 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 13:36:57,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 561 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 13:36:57,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7945 states. [2022-02-18 13:36:58,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7945 to 6692. [2022-02-18 13:36:58,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6692 states, 6691 states have (on average 3.367956957106561) internal successors, (22535), 6691 states have internal predecessors, (22535), 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) [2022-02-18 13:36:58,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6692 states to 6692 states and 22535 transitions. [2022-02-18 13:36:58,137 INFO L78 Accepts]: Start accepts. Automaton has 6692 states and 22535 transitions. Word has length 55 [2022-02-18 13:36:58,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:36:58,142 INFO L470 AbstractCegarLoop]: Abstraction has 6692 states and 22535 transitions. [2022-02-18 13:36:58,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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) [2022-02-18 13:36:58,143 INFO L276 IsEmpty]: Start isEmpty. Operand 6692 states and 22535 transitions. [2022-02-18 13:36:58,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-02-18 13:36:58,158 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:36:58,159 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] [2022-02-18 13:36:58,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-18 13:36:58,159 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 13:36:58,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:36:58,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1483724411, now seen corresponding path program 1 times [2022-02-18 13:36:58,161 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:36:58,161 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744678916] [2022-02-18 13:36:58,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:36:58,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:36:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:36:58,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:36:58,353 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:36:58,353 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744678916] [2022-02-18 13:36:58,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744678916] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:36:58,354 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:36:58,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 13:36:58,354 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403040474] [2022-02-18 13:36:58,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:36:58,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 13:36:58,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:36:58,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 13:36:58,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-18 13:36:58,359 INFO L87 Difference]: Start difference. First operand 6692 states and 22535 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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) [2022-02-18 13:36:58,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:36:58,756 INFO L93 Difference]: Finished difference Result 10586 states and 35274 transitions. [2022-02-18 13:36:58,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 13:36:58,756 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 [2022-02-18 13:36:58,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:36:58,809 INFO L225 Difference]: With dead ends: 10586 [2022-02-18 13:36:58,809 INFO L226 Difference]: Without dead ends: 8086 [2022-02-18 13:36:58,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2022-02-18 13:36:58,810 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 241 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 13:36:58,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 663 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 13:36:58,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8086 states. [2022-02-18 13:36:58,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8086 to 6677. [2022-02-18 13:36:58,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6677 states, 6676 states have (on average 3.355751947273817) internal successors, (22403), 6676 states have internal predecessors, (22403), 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) [2022-02-18 13:36:59,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 22403 transitions. [2022-02-18 13:36:59,024 INFO L78 Accepts]: Start accepts. Automaton has 6677 states and 22403 transitions. Word has length 57 [2022-02-18 13:36:59,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:36:59,025 INFO L470 AbstractCegarLoop]: Abstraction has 6677 states and 22403 transitions. [2022-02-18 13:36:59,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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) [2022-02-18 13:36:59,026 INFO L276 IsEmpty]: Start isEmpty. Operand 6677 states and 22403 transitions. [2022-02-18 13:36:59,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-18 13:36:59,103 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:36:59,103 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] [2022-02-18 13:36:59,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-18 13:36:59,104 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 13:36:59,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:36:59,104 INFO L85 PathProgramCache]: Analyzing trace with hash 62879782, now seen corresponding path program 1 times [2022-02-18 13:36:59,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:36:59,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668383628] [2022-02-18 13:36:59,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:36:59,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:36:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:36:59,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:36:59,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:36:59,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668383628] [2022-02-18 13:36:59,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668383628] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:36:59,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:36:59,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 13:36:59,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522610337] [2022-02-18 13:36:59,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:36:59,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 13:36:59,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:36:59,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 13:36:59,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-18 13:36:59,234 INFO L87 Difference]: Start difference. First operand 6677 states and 22403 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) [2022-02-18 13:36:59,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:36:59,495 INFO L93 Difference]: Finished difference Result 8771 states and 29106 transitions. [2022-02-18 13:36:59,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 13:36:59,496 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 [2022-02-18 13:36:59,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:36:59,523 INFO L225 Difference]: With dead ends: 8771 [2022-02-18 13:36:59,523 INFO L226 Difference]: Without dead ends: 7496 [2022-02-18 13:36:59,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-18 13:36:59,529 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 184 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 13:36:59,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 555 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 13:36:59,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7496 states. [2022-02-18 13:36:59,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7496 to 6387. [2022-02-18 13:36:59,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6387 states, 6386 states have (on average 3.3434074538051988) internal successors, (21351), 6386 states have internal predecessors, (21351), 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) [2022-02-18 13:36:59,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6387 states to 6387 states and 21351 transitions. [2022-02-18 13:36:59,834 INFO L78 Accepts]: Start accepts. Automaton has 6387 states and 21351 transitions. Word has length 59 [2022-02-18 13:36:59,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:36:59,835 INFO L470 AbstractCegarLoop]: Abstraction has 6387 states and 21351 transitions. [2022-02-18 13:36:59,835 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) [2022-02-18 13:36:59,836 INFO L276 IsEmpty]: Start isEmpty. Operand 6387 states and 21351 transitions. [2022-02-18 13:36:59,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-02-18 13:36:59,852 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:36:59,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:36:59,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-18 13:36:59,853 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 13:36:59,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:36:59,856 INFO L85 PathProgramCache]: Analyzing trace with hash 731264860, now seen corresponding path program 1 times [2022-02-18 13:36:59,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:36:59,856 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740485354] [2022-02-18 13:36:59,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:36:59,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:36:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:00,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:00,005 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:00,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740485354] [2022-02-18 13:37:00,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740485354] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:00,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:00,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 13:37:00,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959114625] [2022-02-18 13:37:00,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:00,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 13:37:00,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:00,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 13:37:00,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-02-18 13:37:00,007 INFO L87 Difference]: Start difference. First operand 6387 states and 21351 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:00,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:00,167 INFO L93 Difference]: Finished difference Result 8575 states and 28184 transitions. [2022-02-18 13:37:00,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-18 13:37:00,167 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-02-18 13:37:00,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:00,183 INFO L225 Difference]: With dead ends: 8575 [2022-02-18 13:37:00,185 INFO L226 Difference]: Without dead ends: 3740 [2022-02-18 13:37:00,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-18 13:37:00,189 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 249 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:37:00,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 577 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:37:00,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3740 states. [2022-02-18 13:37:00,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3740 to 3252. [2022-02-18 13:37:00,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3252 states, 3251 states have (on average 3.1934789295601353) internal successors, (10382), 3251 states have internal predecessors, (10382), 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) [2022-02-18 13:37:00,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3252 states to 3252 states and 10382 transitions. [2022-02-18 13:37:00,282 INFO L78 Accepts]: Start accepts. Automaton has 3252 states and 10382 transitions. Word has length 60 [2022-02-18 13:37:00,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:37:00,283 INFO L470 AbstractCegarLoop]: Abstraction has 3252 states and 10382 transitions. [2022-02-18 13:37:00,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:00,283 INFO L276 IsEmpty]: Start isEmpty. Operand 3252 states and 10382 transitions. [2022-02-18 13:37:00,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-18 13:37:00,290 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:37:00,291 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] [2022-02-18 13:37:00,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-18 13:37:00,291 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 13:37:00,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:37:00,291 INFO L85 PathProgramCache]: Analyzing trace with hash 949827269, now seen corresponding path program 1 times [2022-02-18 13:37:00,291 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:37:00,291 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879182579] [2022-02-18 13:37:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:37:00,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:37:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:00,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:00,427 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:00,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879182579] [2022-02-18 13:37:00,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879182579] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:00,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:00,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 13:37:00,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171877529] [2022-02-18 13:37:00,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:00,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 13:37:00,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:00,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 13:37:00,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-18 13:37:00,430 INFO L87 Difference]: Start difference. First operand 3252 states and 10382 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) [2022-02-18 13:37:00,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:00,512 INFO L93 Difference]: Finished difference Result 4340 states and 13870 transitions. [2022-02-18 13:37:00,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-18 13:37:00,512 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 [2022-02-18 13:37:00,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:00,520 INFO L225 Difference]: With dead ends: 4340 [2022-02-18 13:37:00,520 INFO L226 Difference]: Without dead ends: 2240 [2022-02-18 13:37:00,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-02-18 13:37:00,521 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 137 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:37:00,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 462 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:37:00,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2022-02-18 13:37:00,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2240. [2022-02-18 13:37:00,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2240 states, 2239 states have (on average 3.0995980348369807) internal successors, (6940), 2239 states have internal predecessors, (6940), 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) [2022-02-18 13:37:00,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2240 states to 2240 states and 6940 transitions. [2022-02-18 13:37:00,630 INFO L78 Accepts]: Start accepts. Automaton has 2240 states and 6940 transitions. Word has length 63 [2022-02-18 13:37:00,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:37:00,630 INFO L470 AbstractCegarLoop]: Abstraction has 2240 states and 6940 transitions. [2022-02-18 13:37:00,630 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) [2022-02-18 13:37:00,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2240 states and 6940 transitions. [2022-02-18 13:37:00,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-18 13:37:00,636 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:37:00,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:37:00,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-18 13:37:00,636 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 13:37:00,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:37:00,637 INFO L85 PathProgramCache]: Analyzing trace with hash 2036452909, now seen corresponding path program 1 times [2022-02-18 13:37:00,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:37:00,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982380252] [2022-02-18 13:37:00,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:37:00,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:37:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:00,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:00,695 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:00,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982380252] [2022-02-18 13:37:00,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982380252] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:00,695 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:00,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 13:37:00,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417169152] [2022-02-18 13:37:00,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:00,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 13:37:00,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:00,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 13:37:00,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-18 13:37:00,696 INFO L87 Difference]: Start difference. First operand 2240 states and 6940 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:00,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:00,752 INFO L93 Difference]: Finished difference Result 2112 states and 6524 transitions. [2022-02-18 13:37:00,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 13:37:00,752 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-02-18 13:37:00,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:00,752 INFO L225 Difference]: With dead ends: 2112 [2022-02-18 13:37:00,752 INFO L226 Difference]: Without dead ends: 0 [2022-02-18 13:37:00,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-02-18 13:37:00,754 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 111 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:37:00,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 383 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:37:00,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-18 13:37:00,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-18 13:37:00,754 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) [2022-02-18 13:37:00,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-18 13:37:00,755 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2022-02-18 13:37:00,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:37:00,755 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-18 13:37:00,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:00,755 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-18 13:37:00,755 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-18 13:37:00,757 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-02-18 13:37:00,757 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-18 13:37:00,757 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-18 13:37:00,757 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-18 13:37:00,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-18 13:37:00,759 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-02-18 13:37:00,760 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-18 13:37:00,760 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-18 13:37:00,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 01:37:00 BasicIcfg [2022-02-18 13:37:00,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-18 13:37:00,763 INFO L158 Benchmark]: Toolchain (without parser) took 5223.27ms. Allocated memory was 200.3MB in the beginning and 832.6MB in the end (delta: 632.3MB). Free memory was 142.8MB in the beginning and 612.7MB in the end (delta: -469.9MB). Peak memory consumption was 162.0MB. Max. memory is 8.0GB. [2022-02-18 13:37:00,763 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 200.3MB. Free memory is still 160.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-18 13:37:00,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.63ms. Allocated memory was 200.3MB in the beginning and 287.3MB in the end (delta: 87.0MB). Free memory was 142.5MB in the beginning and 248.3MB in the end (delta: -105.8MB). Peak memory consumption was 8.3MB. Max. memory is 8.0GB. [2022-02-18 13:37:00,763 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.50ms. Allocated memory is still 287.3MB. Free memory was 248.3MB in the beginning and 246.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-18 13:37:00,763 INFO L158 Benchmark]: Boogie Preprocessor took 28.79ms. Allocated memory is still 287.3MB. Free memory was 246.2MB in the beginning and 244.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-18 13:37:00,764 INFO L158 Benchmark]: RCFGBuilder took 308.03ms. Allocated memory is still 287.3MB. Free memory was 244.6MB in the beginning and 232.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-18 13:37:00,764 INFO L158 Benchmark]: TraceAbstraction took 4463.81ms. Allocated memory was 287.3MB in the beginning and 832.6MB in the end (delta: 545.3MB). Free memory was 231.5MB in the beginning and 612.7MB in the end (delta: -381.2MB). Peak memory consumption was 165.2MB. Max. memory is 8.0GB. [2022-02-18 13:37:00,765 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 200.3MB. Free memory is still 160.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 368.63ms. Allocated memory was 200.3MB in the beginning and 287.3MB in the end (delta: 87.0MB). Free memory was 142.5MB in the beginning and 248.3MB in the end (delta: -105.8MB). Peak memory consumption was 8.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.50ms. Allocated memory is still 287.3MB. Free memory was 248.3MB in the beginning and 246.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.79ms. Allocated memory is still 287.3MB. Free memory was 246.2MB in the beginning and 244.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 308.03ms. Allocated memory is still 287.3MB. Free memory was 244.6MB in the beginning and 232.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4463.81ms. Allocated memory was 287.3MB in the beginning and 832.6MB in the end (delta: 545.3MB). Free memory was 231.5MB in the beginning and 612.7MB in the end (delta: -381.2MB). Peak memory consumption was 165.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 115 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1131 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1131 mSDsluCounter, 3201 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2587 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 358 IncrementalHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 684 mSDtfsCounter, 358 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6692occurred in iteration=1, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 4259 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 358 NumberOfCodeBlocks, 358 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 352 ConstructedInterpolants, 0 QuantifiedInterpolants, 1800 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-18 13:37:00,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...