/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --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/test05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 18:09:35,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 18:09:35,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 18:09:35,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 18:09:35,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 18:09:35,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 18:09:35,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 18:09:35,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 18:09:35,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 18:09:35,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 18:09:35,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 18:09:35,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 18:09:35,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 18:09:36,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 18:09:36,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 18:09:36,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 18:09:36,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 18:09:36,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 18:09:36,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 18:09:36,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 18:09:36,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 18:09:36,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 18:09:36,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 18:09:36,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 18:09:36,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 18:09:36,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 18:09:36,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 18:09:36,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 18:09:36,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 18:09:36,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 18:09:36,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 18:09:36,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 18:09:36,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 18:09:36,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 18:09:36,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 18:09:36,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 18:09:36,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 18:09:36,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 18:09:36,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 18:09:36,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 18:09:36,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 18:09:36,043 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 [2020-08-21 18:09:36,079 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 18:09:36,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 18:09:36,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 18:09:36,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 18:09:36,082 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 18:09:36,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 18:09:36,082 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 18:09:36,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 18:09:36,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 18:09:36,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 18:09:36,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 18:09:36,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 18:09:36,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 18:09:36,085 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 18:09:36,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 18:09:36,085 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 18:09:36,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 18:09:36,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 18:09:36,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 18:09:36,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 18:09:36,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 18:09:36,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 18:09:36,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 18:09:36,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 18:09:36,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 18:09:36,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 18:09:36,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 18:09:36,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 18:09:36,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 18:09:36,088 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 -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-08-21 18:09:36,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 18:09:36,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 18:09:36,410 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 18:09:36,411 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 18:09:36,412 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 18:09:36,413 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test05.c [2020-08-21 18:09:36,478 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c61c596eb/63a8efffd7004db39f71fc7f0542ab13/FLAG5b6ad5219 [2020-08-21 18:09:36,886 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 18:09:36,886 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test05.c [2020-08-21 18:09:36,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c61c596eb/63a8efffd7004db39f71fc7f0542ab13/FLAG5b6ad5219 [2020-08-21 18:09:37,289 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c61c596eb/63a8efffd7004db39f71fc7f0542ab13 [2020-08-21 18:09:37,300 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 18:09:37,302 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 18:09:37,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 18:09:37,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 18:09:37,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 18:09:37,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:09:37" (1/1) ... [2020-08-21 18:09:37,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@768abc93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:37, skipping insertion in model container [2020-08-21 18:09:37,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 06:09:37" (1/1) ... [2020-08-21 18:09:37,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 18:09:37,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 18:09:37,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:09:37,575 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 18:09:37,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 18:09:37,618 INFO L208 MainTranslator]: Completed translation [2020-08-21 18:09:37,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:37 WrapperNode [2020-08-21 18:09:37,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 18:09:37,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 18:09:37,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 18:09:37,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 18:09:37,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:37" (1/1) ... [2020-08-21 18:09:37,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:37" (1/1) ... [2020-08-21 18:09:37,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:37" (1/1) ... [2020-08-21 18:09:37,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:37" (1/1) ... [2020-08-21 18:09:37,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:37" (1/1) ... [2020-08-21 18:09:37,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:37" (1/1) ... [2020-08-21 18:09:37,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:37" (1/1) ... [2020-08-21 18:09:37,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 18:09:37,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 18:09:37,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 18:09:37,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 18:09:37,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:37" (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 [2020-08-21 18:09:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 18:09:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 18:09:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-08-21 18:09:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-08-21 18:09:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 18:09:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 18:09:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-08-21 18:09:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 18:09:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 18:09:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 18:09:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-08-21 18:09:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 18:09:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 18:09:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 18:09:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 18:09:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 18:09:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 18:09:38,145 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 18:09:38,145 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 18:09:38,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:09:38 BoogieIcfgContainer [2020-08-21 18:09:38,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 18:09:38,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 18:09:38,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 18:09:38,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 18:09:38,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 06:09:37" (1/3) ... [2020-08-21 18:09:38,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b77b7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:09:38, skipping insertion in model container [2020-08-21 18:09:38,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 06:09:37" (2/3) ... [2020-08-21 18:09:38,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b77b7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 06:09:38, skipping insertion in model container [2020-08-21 18:09:38,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 06:09:38" (3/3) ... [2020-08-21 18:09:38,157 INFO L109 eAbstractionObserver]: Analyzing ICFG test05.c [2020-08-21 18:09:38,167 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 18:09:38,173 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 18:09:38,187 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 18:09:38,208 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 18:09:38,208 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 18:09:38,208 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 18:09:38,208 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 18:09:38,208 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 18:09:38,209 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 18:09:38,209 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 18:09:38,209 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 18:09:38,226 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-08-21 18:09:38,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-21 18:09:38,231 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:09:38,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 18:09:38,232 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:09:38,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:09:38,238 INFO L82 PathProgramCache]: Analyzing trace with hash -685779266, now seen corresponding path program 1 times [2020-08-21 18:09:38,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:09:38,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2080685485] [2020-08-21 18:09:38,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:09:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:38,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:09:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:38,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:09:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:38,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:09:38,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2080685485] [2020-08-21 18:09:38,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:09:38,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 18:09:38,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674201009] [2020-08-21 18:09:38,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 18:09:38,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:09:38,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 18:09:38,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-21 18:09:38,583 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 7 states. [2020-08-21 18:09:38,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:09:38,891 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2020-08-21 18:09:38,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 18:09:38,893 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-08-21 18:09:38,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:09:38,902 INFO L225 Difference]: With dead ends: 36 [2020-08-21 18:09:38,903 INFO L226 Difference]: Without dead ends: 21 [2020-08-21 18:09:38,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-21 18:09:38,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-08-21 18:09:38,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-08-21 18:09:38,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-08-21 18:09:38,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-08-21 18:09:38,946 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 14 [2020-08-21 18:09:38,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:09:38,946 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-08-21 18:09:38,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 18:09:38,947 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-08-21 18:09:38,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-21 18:09:38,948 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:09:38,948 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 18:09:38,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 18:09:38,948 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:09:38,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:09:38,949 INFO L82 PathProgramCache]: Analyzing trace with hash 636648720, now seen corresponding path program 1 times [2020-08-21 18:09:38,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:09:38,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780826485] [2020-08-21 18:09:38,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:09:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:39,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:09:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:39,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:09:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:39,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:09:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:39,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:09:39,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780826485] [2020-08-21 18:09:39,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:09:39,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 18:09:39,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925983877] [2020-08-21 18:09:39,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 18:09:39,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:09:39,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 18:09:39,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-21 18:09:39,114 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 7 states. [2020-08-21 18:09:39,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:09:39,299 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-08-21 18:09:39,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 18:09:39,300 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-08-21 18:09:39,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:09:39,301 INFO L225 Difference]: With dead ends: 23 [2020-08-21 18:09:39,301 INFO L226 Difference]: Without dead ends: 21 [2020-08-21 18:09:39,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-21 18:09:39,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-08-21 18:09:39,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-08-21 18:09:39,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-08-21 18:09:39,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2020-08-21 18:09:39,308 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 19 [2020-08-21 18:09:39,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:09:39,309 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2020-08-21 18:09:39,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 18:09:39,309 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2020-08-21 18:09:39,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-21 18:09:39,310 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 18:09:39,310 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 18:09:39,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 18:09:39,311 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 18:09:39,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 18:09:39,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1738724303, now seen corresponding path program 1 times [2020-08-21 18:09:39,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 18:09:39,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903606152] [2020-08-21 18:09:39,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 18:09:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:39,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 18:09:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:39,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 18:09:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:39,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 18:09:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 18:09:39,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 18:09:39,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903606152] [2020-08-21 18:09:39,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 18:09:39,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-21 18:09:39,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597148623] [2020-08-21 18:09:39,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 18:09:39,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 18:09:39,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 18:09:39,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-08-21 18:09:39,659 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 11 states. [2020-08-21 18:09:40,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 18:09:40,011 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-08-21 18:09:40,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 18:09:40,011 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2020-08-21 18:09:40,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 18:09:40,012 INFO L225 Difference]: With dead ends: 21 [2020-08-21 18:09:40,012 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 18:09:40,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-08-21 18:09:40,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 18:09:40,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 18:09:40,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 18:09:40,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 18:09:40,014 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-08-21 18:09:40,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 18:09:40,014 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 18:09:40,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 18:09:40,015 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 18:09:40,015 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 18:09:40,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 18:09:40,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 18:09:40,162 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 18:09:40,162 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|)) [2020-08-21 18:09:40,162 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 18:09:40,163 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |f_#in~a| f_~a) (= |#memory_int| |old(#memory_int)|) (= |f_#in~p2.base| f_~p2.base) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= f_~p1.offset |f_#in~p1.offset|) (= |f_#in~p1.base| f_~p1.base) (= f_~p2.offset |f_#in~p2.offset|)) [2020-08-21 18:09:40,163 INFO L268 CegarLoopResult]: For program point L12(lines 12 17) no Hoare annotation was computed. [2020-08-21 18:09:40,163 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-08-21 18:09:40,163 INFO L268 CegarLoopResult]: For program point fEXIT(lines 11 18) no Hoare annotation was computed. [2020-08-21 18:09:40,164 INFO L264 CegarLoopResult]: At program point fENTRY(lines 11 18) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-08-21 18:09:40,164 INFO L268 CegarLoopResult]: For program point fFINAL(lines 11 18) no Hoare annotation was computed. [2020-08-21 18:09:40,164 INFO L268 CegarLoopResult]: For program point gEXIT(lines 4 9) no Hoare annotation was computed. [2020-08-21 18:09:40,164 INFO L268 CegarLoopResult]: For program point gFINAL(lines 4 9) no Hoare annotation was computed. [2020-08-21 18:09:40,164 INFO L264 CegarLoopResult]: At program point gENTRY(lines 4 9) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-08-21 18:09:40,164 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 18:09:40,166 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-21 18:09:40,166 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 18:09:40,167 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 18:09:40,167 INFO L264 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#p2~0.base|) |main_~#p2~0.offset|))) (and (= |main_#t~mem4| 4) (not (= .cse0 |main_~#a~0.base|)) (not (= |main_~#p2~0.base| |main_~#a~0.base|)) (not (= |main_~#p1~0.base| |main_~#a~0.base|)) (not (= .cse0 |main_~#p1~0.base|)))) [2020-08-21 18:09:40,168 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2020-08-21 18:09:40,168 INFO L268 CegarLoopResult]: For program point L32-1(line 32) no Hoare annotation was computed. [2020-08-21 18:09:40,168 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 20 46) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-08-21 18:09:40,168 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 20 46) no Hoare annotation was computed. [2020-08-21 18:09:40,168 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 20 46) no Hoare annotation was computed. [2020-08-21 18:09:40,169 INFO L264 CegarLoopResult]: At program point L39(lines 20 46) the Hoare annotation is: false [2020-08-21 18:09:40,169 INFO L268 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2020-08-21 18:09:40,169 INFO L268 CegarLoopResult]: For program point L34(lines 34 36) no Hoare annotation was computed. [2020-08-21 18:09:40,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 06:09:40 BoogieIcfgContainer [2020-08-21 18:09:40,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 18:09:40,183 INFO L168 Benchmark]: Toolchain (without parser) took 2880.82 ms. Allocated memory was 140.0 MB in the beginning and 236.5 MB in the end (delta: 96.5 MB). Free memory was 103.3 MB in the beginning and 92.0 MB in the end (delta: 11.3 MB). Peak memory consumption was 107.7 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:40,184 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 18:09:40,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.97 ms. Allocated memory is still 140.0 MB. Free memory was 102.9 MB in the beginning and 92.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:40,186 INFO L168 Benchmark]: Boogie Preprocessor took 118.46 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 92.9 MB in the beginning and 179.7 MB in the end (delta: -86.8 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:40,187 INFO L168 Benchmark]: RCFGBuilder took 410.58 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 160.4 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:40,188 INFO L168 Benchmark]: TraceAbstraction took 2029.80 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 159.7 MB in the beginning and 92.0 MB in the end (delta: 67.7 MB). Peak memory consumption was 101.8 MB. Max. memory is 7.1 GB. [2020-08-21 18:09:40,192 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 314.97 ms. Allocated memory is still 140.0 MB. Free memory was 102.9 MB in the beginning and 92.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.46 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 92.9 MB in the beginning and 179.7 MB in the end (delta: -86.8 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 410.58 ms. Allocated memory is still 202.4 MB. Free memory was 179.7 MB in the beginning and 160.4 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2029.80 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 159.7 MB in the beginning and 92.0 MB in the end (delta: 67.7 MB). Peak memory consumption was 101.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 44 SDtfs, 34 SDslu, 88 SDs, 0 SdLazy, 237 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 99 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 42 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 7578 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...