/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/test18.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:23:45,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:23:45,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:23:45,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:23:45,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:23:45,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:23:45,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:23:45,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:23:45,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:23:45,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:23:45,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:23:45,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:23:45,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:23:45,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:23:45,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:23:45,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:23:45,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:23:45,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:23:45,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:23:45,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:23:45,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:23:45,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:23:45,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:23:45,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:23:45,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:23:45,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:23:45,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:23:45,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:23:45,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:23:45,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-21 11:23:45,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:23:45,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:23:45,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:23:45,975 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 11:23:46,036 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:23:46,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:23:46,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:23:46,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:23:46,042 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:23:46,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:23:46,042 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:23:46,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:23:46,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:23:46,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:23:46,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:23:46,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:23:46,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:23:46,043 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:23:46,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:23:46,046 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:23:46,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:23:46,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:23:46,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:23:46,047 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:23:46,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:23:46,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:23:46,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:23:46,048 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:23:46,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:23:46,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:23:46,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:23:46,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:23:46,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:23:46,049 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 11:23:46,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:23:46,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:23:46,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:23:46,556 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:23:46,558 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:23:46,559 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test18.c [2020-09-21 11:23:46,658 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/238b5de20/e4120ff406df4b52b765b46434029489/FLAG65bf98d96 [2020-09-21 11:23:47,230 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:23:47,231 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test18.c [2020-09-21 11:23:47,237 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/238b5de20/e4120ff406df4b52b765b46434029489/FLAG65bf98d96 [2020-09-21 11:23:47,580 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/238b5de20/e4120ff406df4b52b765b46434029489 [2020-09-21 11:23:47,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:23:47,598 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:23:47,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:23:47,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:23:47,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:23:47,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:23:47" (1/1) ... [2020-09-21 11:23:47,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70c28f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:47, skipping insertion in model container [2020-09-21 11:23:47,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:23:47" (1/1) ... [2020-09-21 11:23:47,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:23:47,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:23:47,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:23:47,874 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:23:47,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:23:47,915 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:23:47,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:47 WrapperNode [2020-09-21 11:23:47,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:23:47,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:23:47,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:23:47,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:23:47,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:47" (1/1) ... [2020-09-21 11:23:47,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:47" (1/1) ... [2020-09-21 11:23:48,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:47" (1/1) ... [2020-09-21 11:23:48,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:47" (1/1) ... [2020-09-21 11:23:48,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:47" (1/1) ... [2020-09-21 11:23:48,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:47" (1/1) ... [2020-09-21 11:23:48,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:47" (1/1) ... [2020-09-21 11:23:48,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:23:48,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:23:48,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:23:48,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:23:48,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:47" (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 11:23:48,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:23:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:23:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-09-21 11:23:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-09-21 11:23:48,110 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:23:48,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:23:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-09-21 11:23:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:23:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:23:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-09-21 11:23:48,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:23:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:23:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:23:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:23:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:23:48,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:23:48,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:23:48,378 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:23:48,379 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 11:23:48,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:23:48 BoogieIcfgContainer [2020-09-21 11:23:48,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:23:48,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:23:48,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:23:48,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:23:48,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:23:47" (1/3) ... [2020-09-21 11:23:48,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f729ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:23:48, skipping insertion in model container [2020-09-21 11:23:48,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:47" (2/3) ... [2020-09-21 11:23:48,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f729ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:23:48, skipping insertion in model container [2020-09-21 11:23:48,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:23:48" (3/3) ... [2020-09-21 11:23:48,397 INFO L109 eAbstractionObserver]: Analyzing ICFG test18.c [2020-09-21 11:23:48,411 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:23:48,423 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:23:48,471 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:23:48,519 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:23:48,520 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:23:48,520 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:23:48,520 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:23:48,520 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:23:48,520 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:23:48,520 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:23:48,520 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:23:48,540 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-09-21 11:23:48,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-21 11:23:48,546 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:48,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:48,548 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:48,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:48,556 INFO L82 PathProgramCache]: Analyzing trace with hash 731851180, now seen corresponding path program 1 times [2020-09-21 11:23:48,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:48,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251939179] [2020-09-21 11:23:48,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:48,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:48,961 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:48,961 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:48,961 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:48,962 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:48,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-21 11:23:48,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:48,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-09-21 11:23:48,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:48,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:23:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:23:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:23:48,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:49,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:49,113 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:49,114 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:49,114 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:49,114 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:49,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:49,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:49,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:23:49,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:49,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:49,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:49,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:49,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:49,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:23:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:49,258 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:49,258 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:49,259 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:49,259 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:49,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:23:49,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:49,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-21 11:23:49,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:49,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:23:49,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:49,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:23:49,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:49,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:23:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:49,387 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:49,388 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:49,388 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:49,388 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:49,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:49,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:49,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:23:49,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:49,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:23:49,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:23:49,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:23:49,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:49,440 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 11:23:49,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251939179] [2020-09-21 11:23:49,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:23:49,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 11:23:49,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325392265] [2020-09-21 11:23:49,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:23:49,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:49,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:23:49,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:23:49,475 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 11 states. [2020-09-21 11:23:49,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:49,749 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-09-21 11:23:49,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:23:49,751 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-09-21 11:23:49,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:49,760 INFO L225 Difference]: With dead ends: 27 [2020-09-21 11:23:49,761 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:23:49,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:23:49,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:23:49,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:23:49,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:23:49,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:23:49,798 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-21 11:23:49,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:49,799 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:23:49,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:23:49,799 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:23:49,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:23:49,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:23:49,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:23:49,997 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:23:49,998 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 11:23:49,998 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:23:49,998 INFO L264 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (and (= (select (select |#memory_$Pointer$.offset| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.offset|) (= (select (select |#memory_$Pointer$.base| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.base|)) [2020-09-21 11:23:49,998 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-09-21 11:23:49,998 INFO L268 CegarLoopResult]: For program point fEXIT(lines 8 11) no Hoare annotation was computed. [2020-09-21 11:23:49,999 INFO L264 CegarLoopResult]: At program point fENTRY(lines 8 11) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-21 11:23:49,999 INFO L268 CegarLoopResult]: For program point fFINAL(lines 8 11) no Hoare annotation was computed. [2020-09-21 11:23:49,999 INFO L268 CegarLoopResult]: For program point gEXIT(lines 4 6) no Hoare annotation was computed. [2020-09-21 11:23:49,999 INFO L268 CegarLoopResult]: For program point gFINAL(lines 4 6) no Hoare annotation was computed. [2020-09-21 11:23:49,999 INFO L264 CegarLoopResult]: At program point gENTRY(lines 4 6) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-09-21 11:23:50,000 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:23:50,000 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-21 11:23:50,000 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:23:50,000 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:23:50,000 INFO L264 CegarLoopResult]: At program point L17(lines 13 24) the Hoare annotation is: false [2020-09-21 11:23:50,000 INFO L268 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-09-21 11:23:50,002 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2020-09-21 11:23:50,003 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-09-21 11:23:50,003 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-21 11:23:50,003 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 13 24) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-21 11:23:50,003 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 24) no Hoare annotation was computed. [2020-09-21 11:23:50,004 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 24) no Hoare annotation was computed. [2020-09-21 11:23:50,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:23:50 BoogieIcfgContainer [2020-09-21 11:23:50,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:23:50,028 INFO L168 Benchmark]: Toolchain (without parser) took 2432.47 ms. Allocated memory was 139.5 MB in the beginning and 233.8 MB in the end (delta: 94.4 MB). Free memory was 101.4 MB in the beginning and 174.0 MB in the end (delta: -72.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:50,031 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:23:50,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.37 ms. Allocated memory is still 139.5 MB. Free memory was 100.8 MB in the beginning and 91.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:50,034 INFO L168 Benchmark]: Boogie Preprocessor took 119.10 ms. Allocated memory was 139.5 MB in the beginning and 200.8 MB in the end (delta: 61.3 MB). Free memory was 91.2 MB in the beginning and 178.9 MB in the end (delta: -87.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:50,035 INFO L168 Benchmark]: RCFGBuilder took 350.79 ms. Allocated memory is still 200.8 MB. Free memory was 178.9 MB in the beginning and 163.0 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:50,036 INFO L168 Benchmark]: TraceAbstraction took 1636.21 ms. Allocated memory was 200.8 MB in the beginning and 233.8 MB in the end (delta: 33.0 MB). Free memory was 162.4 MB in the beginning and 174.0 MB in the end (delta: -11.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:50,040 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 317.37 ms. Allocated memory is still 139.5 MB. Free memory was 100.8 MB in the beginning and 91.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.10 ms. Allocated memory was 139.5 MB in the beginning and 200.8 MB in the end (delta: 61.3 MB). Free memory was 91.2 MB in the beginning and 178.9 MB in the end (delta: -87.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 350.79 ms. Allocated memory is still 200.8 MB. Free memory was 178.9 MB in the beginning and 163.0 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1636.21 ms. Allocated memory was 200.8 MB in the beginning and 233.8 MB in the end (delta: 33.0 MB). Free memory was 162.4 MB in the beginning and 174.0 MB in the end (delta: -11.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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: 13]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 3 SDslu, 45 SDs, 0 SdLazy, 105 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 80 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 36 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 2414 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...