/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 23:28:56,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 23:28:56,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 23:28:56,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 23:28:56,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 23:28:56,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 23:28:56,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 23:28:56,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 23:28:56,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 23:28:56,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 23:28:56,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 23:28:56,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 23:28:56,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 23:28:56,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 23:28:56,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 23:28:56,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 23:28:56,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 23:28:56,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 23:28:56,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 23:28:57,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 23:28:57,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 23:28:57,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 23:28:57,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 23:28:57,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 23:28:57,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 23:28:57,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 23:28:57,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 23:28:57,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 23:28:57,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 23:28:57,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 23:28:57,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 23:28:57,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 23:28:57,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 23:28:57,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 23:28:57,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 23:28:57,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 23:28:57,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 23:28:57,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 23:28:57,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 23:28:57,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 23:28:57,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 23:28:57,041 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 23:28:57,077 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 23:28:57,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 23:28:57,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 23:28:57,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 23:28:57,080 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 23:28:57,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 23:28:57,081 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 23:28:57,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 23:28:57,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 23:28:57,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 23:28:57,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 23:28:57,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 23:28:57,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 23:28:57,083 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 23:28:57,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 23:28:57,083 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 23:28:57,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 23:28:57,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 23:28:57,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 23:28:57,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 23:28:57,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 23:28:57,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:28:57,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 23:28:57,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 23:28:57,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 23:28:57,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 23:28:57,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 23:28:57,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 23:28:57,086 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 23:28:57,086 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 23:28:57,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 23:28:57,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 23:28:57,425 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 23:28:57,426 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 23:28:57,427 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 23:28:57,428 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2020-10-14 23:28:57,489 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4cd7945a7/e4d882fb82f84b5b9ac61a858da7e805/FLAG2dfa4a56a [2020-10-14 23:28:57,937 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 23:28:57,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2020-10-14 23:28:57,944 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4cd7945a7/e4d882fb82f84b5b9ac61a858da7e805/FLAG2dfa4a56a [2020-10-14 23:28:58,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4cd7945a7/e4d882fb82f84b5b9ac61a858da7e805 [2020-10-14 23:28:58,328 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 23:28:58,331 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 23:28:58,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 23:28:58,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 23:28:58,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 23:28:58,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:28:58" (1/1) ... [2020-10-14 23:28:58,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ab080f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:58, skipping insertion in model container [2020-10-14 23:28:58,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:28:58" (1/1) ... [2020-10-14 23:28:58,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 23:28:58,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 23:28:58,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:28:58,583 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 23:28:58,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:28:58,610 INFO L208 MainTranslator]: Completed translation [2020-10-14 23:28:58,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:58 WrapperNode [2020-10-14 23:28:58,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 23:28:58,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 23:28:58,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 23:28:58,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 23:28:58,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:58" (1/1) ... [2020-10-14 23:28:58,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:58" (1/1) ... [2020-10-14 23:28:58,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:58" (1/1) ... [2020-10-14 23:28:58,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:58" (1/1) ... [2020-10-14 23:28:58,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:58" (1/1) ... [2020-10-14 23:28:58,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:58" (1/1) ... [2020-10-14 23:28:58,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:58" (1/1) ... [2020-10-14 23:28:58,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 23:28:58,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 23:28:58,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 23:28:58,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 23:28:58,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:28:58,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 23:28:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 23:28:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2020-10-14 23:28:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-14 23:28:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-14 23:28:58,799 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 23:28:58,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 23:28:58,799 INFO L130 BoogieDeclarations]: Found specification of procedure err [2020-10-14 23:28:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-14 23:28:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 23:28:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 23:28:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-14 23:28:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 23:28:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 23:28:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 23:28:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 23:28:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 23:28:59,010 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 23:28:59,011 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 23:28:59,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:28:59 BoogieIcfgContainer [2020-10-14 23:28:59,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 23:28:59,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 23:28:59,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 23:28:59,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 23:28:59,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:28:58" (1/3) ... [2020-10-14 23:28:59,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d4c6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:28:59, skipping insertion in model container [2020-10-14 23:28:59,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:28:58" (2/3) ... [2020-10-14 23:28:59,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d4c6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:28:59, skipping insertion in model container [2020-10-14 23:28:59,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:28:59" (3/3) ... [2020-10-14 23:28:59,050 INFO L109 eAbstractionObserver]: Analyzing ICFG mutex_lock_struct.c_1.i [2020-10-14 23:28:59,078 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 23:28:59,092 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 23:28:59,112 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 23:28:59,134 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 23:28:59,134 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 23:28:59,134 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 23:28:59,134 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 23:28:59,134 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 23:28:59,135 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 23:28:59,135 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 23:28:59,135 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 23:28:59,152 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-10-14 23:28:59,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-14 23:28:59,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:28:59,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:28:59,159 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:28:59,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:28:59,163 INFO L82 PathProgramCache]: Analyzing trace with hash 589228543, now seen corresponding path program 1 times [2020-10-14 23:28:59,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:28:59,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1210313041] [2020-10-14 23:28:59,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:28:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:28:59,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:59,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:28:59,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 23:28:59,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:28:59,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 23:28:59,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:28:59,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:28:59,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:28:59,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 23:28:59,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:28:59,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 23:28:59,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:28:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:28:59,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:28:59,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:28:59,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:28:59,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:28:59,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:28:59,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:28:59,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:28:59,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:28:59,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:28:59,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:28:59,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 23:28:59,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:28:59,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1210313041] [2020-10-14 23:28:59,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:28:59,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 23:28:59,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319773120] [2020-10-14 23:28:59,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 23:28:59,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:28:59,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 23:28:59,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 23:28:59,666 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 6 states. [2020-10-14 23:28:59,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:28:59,837 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-10-14 23:28:59,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 23:28:59,839 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-14 23:28:59,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:28:59,846 INFO L225 Difference]: With dead ends: 46 [2020-10-14 23:28:59,846 INFO L226 Difference]: Without dead ends: 18 [2020-10-14 23:28:59,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 23:28:59,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-14 23:28:59,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-14 23:28:59,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-14 23:28:59,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-10-14 23:28:59,886 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 11 [2020-10-14 23:28:59,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:28:59,886 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-10-14 23:28:59,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 23:28:59,887 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-10-14 23:28:59,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-14 23:28:59,888 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:28:59,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:28:59,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 23:28:59,889 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:28:59,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:28:59,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1259031447, now seen corresponding path program 1 times [2020-10-14 23:28:59,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:28:59,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731679209] [2020-10-14 23:28:59,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:28:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:28:59,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:00,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:00,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 23:29:00,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:00,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-14 23:29:00,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:00,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:00,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 23:29:00,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 23:29:00,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 23:29:00,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:00,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:29:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:00,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:00,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:00,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:29:00,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:00,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:29:00,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:00,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:00,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:29:00,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:00,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:29:00,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 23:29:00,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:29:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:29:00,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:29:00,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:29:00,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:29:00,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:29:00,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 23:29:00,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:29:00,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:29:00,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:29:00,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:29:00,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:29:00,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:29:00,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:29:00,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1731679209] [2020-10-14 23:29:00,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:29:00,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 23:29:00,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966574385] [2020-10-14 23:29:00,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 23:29:00,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:29:00,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 23:29:00,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:29:00,285 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 9 states. [2020-10-14 23:29:00,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:29:00,453 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-10-14 23:29:00,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 23:29:00,453 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-10-14 23:29:00,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:29:00,454 INFO L225 Difference]: With dead ends: 18 [2020-10-14 23:29:00,454 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 23:29:00,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-10-14 23:29:00,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 23:29:00,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 23:29:00,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 23:29:00,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 23:29:00,456 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-14 23:29:00,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:29:00,457 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 23:29:00,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 23:29:00,457 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 23:29:00,457 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 23:29:00,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 23:29:00,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 23:29:00,577 INFO L264 CegarLoopResult]: At program point mutex_unlockENTRY(lines 25 29) the Hoare annotation is: (or (= |#memory_int| |old(#memory_int)|) (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1))) [2020-10-14 23:29:00,577 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-14 23:29:00,577 INFO L268 CegarLoopResult]: For program point mutex_unlockEXIT(lines 25 29) no Hoare annotation was computed. [2020-10-14 23:29:00,577 INFO L264 CegarLoopResult]: At program point L27-1(line 27) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) [2020-10-14 23:29:00,577 INFO L268 CegarLoopResult]: For program point L27-3(line 27) no Hoare annotation was computed. [2020-10-14 23:29:00,578 INFO L268 CegarLoopResult]: For program point mutex_unlockFINAL(lines 25 29) no Hoare annotation was computed. [2020-10-14 23:29:00,578 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 23:29:00,580 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-14 23:29:00,580 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 23:29:00,581 INFO L268 CegarLoopResult]: For program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-10-14 23:29:00,581 INFO L268 CegarLoopResult]: For program point errEXIT(lines 12 13) no Hoare annotation was computed. [2020-10-14 23:29:00,581 INFO L271 CegarLoopResult]: At program point errENTRY(lines 12 13) the Hoare annotation is: true [2020-10-14 23:29:00,581 INFO L268 CegarLoopResult]: For program point errFINAL(lines 12 13) no Hoare annotation was computed. [2020-10-14 23:29:00,581 INFO L264 CegarLoopResult]: At program point mutex_lockENTRY(lines 19 23) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (= |#memory_int| |old(#memory_int)|)) [2020-10-14 23:29:00,581 INFO L268 CegarLoopResult]: For program point mutex_lockFINAL(lines 19 23) no Hoare annotation was computed. [2020-10-14 23:29:00,582 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-10-14 23:29:00,582 INFO L268 CegarLoopResult]: For program point mutex_lockEXIT(lines 19 23) no Hoare annotation was computed. [2020-10-14 23:29:00,582 INFO L264 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) [2020-10-14 23:29:00,582 INFO L268 CegarLoopResult]: For program point L21-3(line 21) no Hoare annotation was computed. [2020-10-14 23:29:00,582 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 23:29:00,582 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 23:29:00,583 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 23:29:00,583 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 23:29:00,583 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 31 43) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-14 23:29:00,584 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 31 43) no Hoare annotation was computed. [2020-10-14 23:29:00,584 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 31 43) no Hoare annotation was computed. [2020-10-14 23:29:00,584 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-10-14 23:29:00,585 INFO L264 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (= (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|) 0) [2020-10-14 23:29:00,586 INFO L264 CegarLoopResult]: At program point L36-1(line 36) the Hoare annotation is: (= (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|) 1) [2020-10-14 23:29:00,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:29:00 BoogieIcfgContainer [2020-10-14 23:29:00,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 23:29:00,600 INFO L168 Benchmark]: Toolchain (without parser) took 2266.83 ms. Allocated memory was 146.8 MB in the beginning and 234.4 MB in the end (delta: 87.6 MB). Free memory was 103.2 MB in the beginning and 167.1 MB in the end (delta: -63.9 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-10-14 23:29:00,601 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 23:29:00,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.90 ms. Allocated memory is still 146.8 MB. Free memory was 102.8 MB in the beginning and 93.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-10-14 23:29:00,603 INFO L168 Benchmark]: Boogie Preprocessor took 116.38 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 93.0 MB in the beginning and 180.7 MB in the end (delta: -87.8 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-10-14 23:29:00,605 INFO L168 Benchmark]: RCFGBuilder took 290.11 ms. Allocated memory is still 202.9 MB. Free memory was 180.7 MB in the beginning and 167.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-10-14 23:29:00,607 INFO L168 Benchmark]: TraceAbstraction took 1563.83 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 166.3 MB in the beginning and 167.1 MB in the end (delta: -748.8 kB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2020-10-14 23:29:00,617 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 279.90 ms. Allocated memory is still 146.8 MB. Free memory was 102.8 MB in the beginning and 93.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.38 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 93.0 MB in the beginning and 180.7 MB in the end (delta: -87.8 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 290.11 ms. Allocated memory is still 202.9 MB. Free memory was 180.7 MB in the beginning and 167.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1563.83 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 166.3 MB in the beginning and 167.1 MB in the end (delta: -748.8 kB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 19 SDslu, 57 SDs, 0 SdLazy, 104 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 15 PreInvPairs, 16 NumberOfFragments, 74 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 43 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 1370 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...