/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 --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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=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-eb0fd7c [2020-09-21 11:23:21,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:23:21,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:23:22,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:23:22,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:23:22,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:23:22,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:23:22,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:23:22,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:23:22,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:23:22,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:23:22,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:23:22,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:23:22,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:23:22,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:23:22,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:23:22,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:23:22,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:23:22,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:23:22,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:23:22,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:23:22,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:23:22,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:23:22,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:23:22,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:23:22,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:23:22,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:23:22,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:23:22,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:23:22,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:23:22,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:23:22,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:23:22,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:23:22,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:23:22,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:23:22,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:23:22,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:23:22,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:23:22,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:23:22,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:23:22,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:23:22,089 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 [2020-09-21 11:23:22,143 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:23:22,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:23:22,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:23:22,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:23:22,146 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:23:22,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:23:22,147 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:23:22,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:23:22,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:23:22,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:23:22,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:23:22,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:23:22,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:23:22,149 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:23:22,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:23:22,150 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:23:22,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:23:22,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:23:22,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:23:22,151 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:23:22,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:23:22,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:23:22,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:23:22,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:23:22,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:23:22,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:23:22,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:23:22,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:23:22,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:23:22,155 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.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;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:23:22,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:23:22,673 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:23:22,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:23:22,679 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:23:22,680 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:23:22,681 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2020-09-21 11:23:22,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/935a1e4a8/eaced51b24764883aa37a2d8ec8b533a/FLAGe9d7fab4b [2020-09-21 11:23:23,314 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:23:23,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2020-09-21 11:23:23,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/935a1e4a8/eaced51b24764883aa37a2d8ec8b533a/FLAGe9d7fab4b [2020-09-21 11:23:23,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/935a1e4a8/eaced51b24764883aa37a2d8ec8b533a [2020-09-21 11:23:23,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:23:23,686 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:23:23,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:23:23,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:23:23,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:23:23,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:23:23" (1/1) ... [2020-09-21 11:23:23,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45241865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:23, skipping insertion in model container [2020-09-21 11:23:23,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:23:23" (1/1) ... [2020-09-21 11:23:23,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:23:23,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:23:23,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:23:23,945 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:23:23,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:23:23,978 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:23:23,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:23 WrapperNode [2020-09-21 11:23:23,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:23:23,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:23:23,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:23:23,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:23:23,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:23" (1/1) ... [2020-09-21 11:23:23,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:23" (1/1) ... [2020-09-21 11:23:24,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:23" (1/1) ... [2020-09-21 11:23:24,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:23" (1/1) ... [2020-09-21 11:23:24,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:23" (1/1) ... [2020-09-21 11:23:24,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:23" (1/1) ... [2020-09-21 11:23:24,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:23" (1/1) ... [2020-09-21 11:23:24,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:23:24,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:23:24,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:23:24,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:23:24,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:23" (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 [2020-09-21 11:23:24,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:23:24,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:23:24,184 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2020-09-21 11:23:24,184 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-21 11:23:24,184 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-21 11:23:24,185 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:23:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:23:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure err [2020-09-21 11:23:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-21 11:23:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:23:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:23:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-21 11:23:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:23:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:23:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:23:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:23:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:23:24,449 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:23:24,449 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 11:23:24,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:23:24 BoogieIcfgContainer [2020-09-21 11:23:24,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:23:24,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:23:24,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:23:24,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:23:24,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:23:23" (1/3) ... [2020-09-21 11:23:24,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c51e604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:23:24, skipping insertion in model container [2020-09-21 11:23:24,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:23" (2/3) ... [2020-09-21 11:23:24,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c51e604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:23:24, skipping insertion in model container [2020-09-21 11:23:24,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:23:24" (3/3) ... [2020-09-21 11:23:24,489 INFO L109 eAbstractionObserver]: Analyzing ICFG mutex_lock_struct.c_1.i [2020-09-21 11:23:24,517 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:23:24,540 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:23:24,563 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:23:24,600 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:23:24,600 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:23:24,600 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:23:24,601 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:23:24,601 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:23:24,601 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:23:24,601 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:23:24,601 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:23:24,627 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-09-21 11:23:24,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-21 11:23:24,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:24,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:24,635 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:24,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:24,642 INFO L82 PathProgramCache]: Analyzing trace with hash 589228543, now seen corresponding path program 1 times [2020-09-21 11:23:24,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:24,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430188313] [2020-09-21 11:23:24,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:24,839 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:24,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:24,840 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:24,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:24,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:23:24,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:24,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 11:23:24,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:24,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:23:24,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:23:24,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:23:24,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:25,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:25,009 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:25,010 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:25,010 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:25,010 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:25,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:25,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:25,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:25,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:25,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:25,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:25,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:25,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:25,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:23:25,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430188313] [2020-09-21 11:23:25,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:23:25,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:23:25,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681439594] [2020-09-21 11:23:25,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:23:25,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:25,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:23:25,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:23:25,063 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 6 states. [2020-09-21 11:23:25,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:25,258 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-09-21 11:23:25,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:23:25,261 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-09-21 11:23:25,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:25,274 INFO L225 Difference]: With dead ends: 46 [2020-09-21 11:23:25,274 INFO L226 Difference]: Without dead ends: 18 [2020-09-21 11:23:25,280 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 [2020-09-21 11:23:25,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-09-21 11:23:25,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-09-21 11:23:25,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-09-21 11:23:25,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-09-21 11:23:25,342 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 11 [2020-09-21 11:23:25,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:25,342 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-09-21 11:23:25,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:23:25,343 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-09-21 11:23:25,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-21 11:23:25,344 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:25,344 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:25,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:23:25,345 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:25,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:25,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1259031447, now seen corresponding path program 1 times [2020-09-21 11:23:25,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:25,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386193471] [2020-09-21 11:23:25,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:25,407 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:25,408 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:25,408 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:25,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:25,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:23:25,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:25,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-21 11:23:25,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:23:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:23:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:23:25,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:25,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:25,499 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:25,499 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:25,499 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:25,500 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:25,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:25,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:25,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:23:25,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:25,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:25,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:25,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:25,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:25,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:23:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:25,532 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:25,532 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:25,532 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:25,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:25,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:23:25,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:25,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:23:25,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:23:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:23:25,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:23:25,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:23:25,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386193471] [2020-09-21 11:23:25,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:23:25,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:23:25,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796396432] [2020-09-21 11:23:25,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:23:25,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:25,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:23:25,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:23:25,583 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 9 states. [2020-09-21 11:23:25,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:25,804 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-09-21 11:23:25,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:23:25,804 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-09-21 11:23:25,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:25,805 INFO L225 Difference]: With dead ends: 18 [2020-09-21 11:23:25,805 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:23:25,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:23:25,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:23:25,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:23:25,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:23:25,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:23:25,808 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-21 11:23:25,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:25,808 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:23:25,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:23:25,809 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:23:25,809 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:23:25,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:23:25,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:23:25,917 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))) [2020-09-21 11:23:25,918 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-21 11:23:25,918 INFO L268 CegarLoopResult]: For program point mutex_unlockEXIT(lines 25 29) no Hoare annotation was computed. [2020-09-21 11:23:25,918 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)) [2020-09-21 11:23:25,918 INFO L268 CegarLoopResult]: For program point L27-3(line 27) no Hoare annotation was computed. [2020-09-21 11:23:25,918 INFO L268 CegarLoopResult]: For program point mutex_unlockFINAL(lines 25 29) no Hoare annotation was computed. [2020-09-21 11:23:25,919 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:23:25,919 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|)) [2020-09-21 11:23:25,919 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:23:25,919 INFO L268 CegarLoopResult]: For program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-09-21 11:23:25,919 INFO L268 CegarLoopResult]: For program point errEXIT(lines 12 13) no Hoare annotation was computed. [2020-09-21 11:23:25,920 INFO L271 CegarLoopResult]: At program point errENTRY(lines 12 13) the Hoare annotation is: true [2020-09-21 11:23:25,920 INFO L268 CegarLoopResult]: For program point errFINAL(lines 12 13) no Hoare annotation was computed. [2020-09-21 11:23:25,920 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)|)) [2020-09-21 11:23:25,920 INFO L268 CegarLoopResult]: For program point mutex_lockFINAL(lines 19 23) no Hoare annotation was computed. [2020-09-21 11:23:25,920 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-21 11:23:25,920 INFO L268 CegarLoopResult]: For program point mutex_lockEXIT(lines 19 23) no Hoare annotation was computed. [2020-09-21 11:23:25,921 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)) [2020-09-21 11:23:25,921 INFO L268 CegarLoopResult]: For program point L21-3(line 21) no Hoare annotation was computed. [2020-09-21 11:23:25,921 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:23:25,921 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-21 11:23:25,921 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:23:25,922 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:23:25,922 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 31 43) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-09-21 11:23:25,922 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 31 43) no Hoare annotation was computed. [2020-09-21 11:23:25,922 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 31 43) no Hoare annotation was computed. [2020-09-21 11:23:25,922 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-21 11:23:25,923 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) [2020-09-21 11:23:25,923 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) [2020-09-21 11:23:25,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:23:25 BoogieIcfgContainer [2020-09-21 11:23:25,930 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:23:25,933 INFO L168 Benchmark]: Toolchain (without parser) took 2250.10 ms. Allocated memory was 138.9 MB in the beginning and 234.4 MB in the end (delta: 95.4 MB). Free memory was 102.2 MB in the beginning and 185.8 MB in the end (delta: -83.6 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:25,934 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:23:25,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.25 ms. Allocated memory is still 138.9 MB. Free memory was 101.5 MB in the beginning and 91.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:25,937 INFO L168 Benchmark]: Boogie Preprocessor took 119.30 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 91.8 MB in the beginning and 180.2 MB in the end (delta: -88.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:25,937 INFO L168 Benchmark]: RCFGBuilder took 356.52 ms. Allocated memory is still 201.9 MB. Free memory was 179.9 MB in the beginning and 166.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:25,938 INFO L168 Benchmark]: TraceAbstraction took 1460.91 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 165.6 MB in the beginning and 185.8 MB in the end (delta: -20.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:25,943 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 292.25 ms. Allocated memory is still 138.9 MB. Free memory was 101.5 MB in the beginning and 91.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.30 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 91.8 MB in the beginning and 180.2 MB in the end (delta: -88.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 356.52 ms. Allocated memory is still 201.9 MB. Free memory was 179.9 MB in the beginning and 166.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1460.91 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 165.6 MB in the beginning and 185.8 MB in the end (delta: -20.1 MB). Peak memory consumption was 12.4 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: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, 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, 0.3s 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, 0.4s 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...