/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/indp5f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 06:07:00,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 06:07:00,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 06:07:00,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 06:07:00,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 06:07:00,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 06:07:00,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 06:07:00,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 06:07:00,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 06:07:00,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 06:07:00,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 06:07:00,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 06:07:00,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 06:07:00,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 06:07:00,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 06:07:00,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 06:07:00,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 06:07:00,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 06:07:00,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 06:07:00,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 06:07:00,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 06:07:00,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 06:07:00,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 06:07:00,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 06:07:00,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 06:07:00,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 06:07:00,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 06:07:00,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 06:07:00,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 06:07:00,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 06:07:00,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 06:07:00,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 06:07:00,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 06:07:00,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 06:07:00,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 06:07:00,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 06:07:00,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 06:07:00,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 06:07:00,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 06:07:00,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 06:07:00,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 06:07:00,927 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 [2020-08-19 06:07:00,951 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 06:07:00,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 06:07:00,952 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 06:07:00,952 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 06:07:00,953 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 06:07:00,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 06:07:00,953 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 06:07:00,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 06:07:00,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 06:07:00,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 06:07:00,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 06:07:00,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 06:07:00,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 06:07:00,954 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 06:07:00,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 06:07:00,955 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 06:07:00,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 06:07:00,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 06:07:00,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 06:07:00,955 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 06:07:00,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 06:07:00,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 06:07:00,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 06:07:00,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 06:07:00,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 06:07:00,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 06:07:00,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 06:07:00,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 06:07:00,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 06:07:00,957 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=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4; [2020-08-19 06:07:01,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 06:07:01,285 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 06:07:01,289 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 06:07:01,291 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 06:07:01,291 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 06:07:01,292 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp5f.c [2020-08-19 06:07:01,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f6cb7e4d/540fd5703e414a5e93024520ba6619cd/FLAG5870b4538 [2020-08-19 06:07:01,851 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 06:07:01,852 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/indp5f.c [2020-08-19 06:07:01,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f6cb7e4d/540fd5703e414a5e93024520ba6619cd/FLAG5870b4538 [2020-08-19 06:07:02,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f6cb7e4d/540fd5703e414a5e93024520ba6619cd [2020-08-19 06:07:02,201 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 06:07:02,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 06:07:02,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 06:07:02,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 06:07:02,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 06:07:02,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:07:02" (1/1) ... [2020-08-19 06:07:02,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ad76f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:07:02, skipping insertion in model container [2020-08-19 06:07:02,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:07:02" (1/1) ... [2020-08-19 06:07:02,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 06:07:02,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 06:07:02,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:07:02,446 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 06:07:02,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:07:02,482 INFO L208 MainTranslator]: Completed translation [2020-08-19 06:07:02,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:07:02 WrapperNode [2020-08-19 06:07:02,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 06:07:02,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 06:07:02,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 06:07:02,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 06:07:02,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:07:02" (1/1) ... [2020-08-19 06:07:02,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:07:02" (1/1) ... [2020-08-19 06:07:02,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:07:02" (1/1) ... [2020-08-19 06:07:02,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:07:02" (1/1) ... [2020-08-19 06:07:02,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:07:02" (1/1) ... [2020-08-19 06:07:02,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:07:02" (1/1) ... [2020-08-19 06:07:02,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:07:02" (1/1) ... [2020-08-19 06:07:02,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 06:07:02,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 06:07:02,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 06:07:02,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 06:07:02,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:07:02" (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 [2020-08-19 06:07:02,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 06:07:02,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 06:07:02,676 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-19 06:07:02,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-19 06:07:02,676 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 06:07:02,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 06:07:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 06:07:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-19 06:07:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-19 06:07:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 06:07:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 06:07:02,677 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 06:07:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 06:07:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 06:07:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 06:07:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 06:07:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 06:07:02,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 06:07:02,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 06:07:02,975 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 06:07:02,975 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 06:07:02,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:07:02 BoogieIcfgContainer [2020-08-19 06:07:02,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 06:07:02,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 06:07:02,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 06:07:02,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 06:07:02,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 06:07:02" (1/3) ... [2020-08-19 06:07:02,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66006c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:07:02, skipping insertion in model container [2020-08-19 06:07:02,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:07:02" (2/3) ... [2020-08-19 06:07:02,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66006c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:07:02, skipping insertion in model container [2020-08-19 06:07:02,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:07:02" (3/3) ... [2020-08-19 06:07:02,990 INFO L109 eAbstractionObserver]: Analyzing ICFG indp5f.c [2020-08-19 06:07:03,002 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 06:07:03,010 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 06:07:03,027 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 06:07:03,055 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 06:07:03,055 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 06:07:03,055 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 06:07:03,056 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 06:07:03,056 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 06:07:03,056 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 06:07:03,056 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 06:07:03,056 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 06:07:03,077 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-08-19 06:07:03,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-19 06:07:03,085 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:07:03,087 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, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:07:03,088 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:07:03,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:07:03,095 INFO L82 PathProgramCache]: Analyzing trace with hash -976607933, now seen corresponding path program 1 times [2020-08-19 06:07:03,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:07:03,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676249461] [2020-08-19 06:07:03,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:07:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:07:03,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:07:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:07:03,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 06:07:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:07:03,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 06:07:03,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1676249461] [2020-08-19 06:07:03,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:07:03,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 06:07:03,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086865894] [2020-08-19 06:07:03,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 06:07:03,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:07:03,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 06:07:03,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 06:07:03,338 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2020-08-19 06:07:03,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:07:03,483 INFO L93 Difference]: Finished difference Result 70 states and 93 transitions. [2020-08-19 06:07:03,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 06:07:03,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-08-19 06:07:03,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:07:03,495 INFO L225 Difference]: With dead ends: 70 [2020-08-19 06:07:03,496 INFO L226 Difference]: Without dead ends: 33 [2020-08-19 06:07:03,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 06:07:03,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-08-19 06:07:03,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-08-19 06:07:03,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-08-19 06:07:03,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-08-19 06:07:03,541 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 27 [2020-08-19 06:07:03,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:07:03,542 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-08-19 06:07:03,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 06:07:03,542 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-08-19 06:07:03,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-19 06:07:03,543 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:07:03,543 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, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:07:03,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 06:07:03,544 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:07:03,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:07:03,545 INFO L82 PathProgramCache]: Analyzing trace with hash -714487667, now seen corresponding path program 1 times [2020-08-19 06:07:03,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:07:03,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328472620] [2020-08-19 06:07:03,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:07:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:07:03,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:07:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:07:03,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 06:07:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:07:03,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 06:07:03,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328472620] [2020-08-19 06:07:03,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:07:03,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 06:07:03,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302083473] [2020-08-19 06:07:03,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 06:07:03,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:07:03,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 06:07:03,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 06:07:03,690 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 5 states. [2020-08-19 06:07:03,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:07:03,861 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2020-08-19 06:07:03,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 06:07:03,862 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-08-19 06:07:03,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:07:03,864 INFO L225 Difference]: With dead ends: 61 [2020-08-19 06:07:03,864 INFO L226 Difference]: Without dead ends: 43 [2020-08-19 06:07:03,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-08-19 06:07:03,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-08-19 06:07:03,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2020-08-19 06:07:03,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-08-19 06:07:03,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2020-08-19 06:07:03,876 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 27 [2020-08-19 06:07:03,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:07:03,877 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-08-19 06:07:03,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 06:07:03,877 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2020-08-19 06:07:03,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-08-19 06:07:03,879 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:07:03,879 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:07:03,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 06:07:03,880 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:07:03,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:07:03,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1064141225, now seen corresponding path program 1 times [2020-08-19 06:07:03,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:07:03,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680683847] [2020-08-19 06:07:03,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:07:03,900 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-08-19 06:07:03,901 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-08-19 06:07:03,901 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 06:07:03,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 06:07:03,925 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-08-19 06:07:03,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 06:07:03 BoogieIcfgContainer [2020-08-19 06:07:03,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 06:07:03,929 INFO L168 Benchmark]: Toolchain (without parser) took 1725.48 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 101.5 MB in the beginning and 99.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. [2020-08-19 06:07:03,929 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-19 06:07:03,930 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.01 ms. Allocated memory is still 138.4 MB. Free memory was 101.3 MB in the beginning and 90.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-08-19 06:07:03,932 INFO L168 Benchmark]: Boogie Preprocessor took 113.67 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 90.5 MB in the beginning and 177.9 MB in the end (delta: -87.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-08-19 06:07:03,933 INFO L168 Benchmark]: RCFGBuilder took 384.59 ms. Allocated memory is still 200.8 MB. Free memory was 177.9 MB in the beginning and 159.4 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2020-08-19 06:07:03,933 INFO L168 Benchmark]: TraceAbstraction took 942.79 ms. Allocated memory is still 200.8 MB. Free memory was 158.7 MB in the beginning and 99.5 MB in the end (delta: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 7.1 GB. [2020-08-19 06:07:03,938 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 277.01 ms. Allocated memory is still 138.4 MB. Free memory was 101.3 MB in the beginning and 90.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.67 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 90.5 MB in the beginning and 177.9 MB in the end (delta: -87.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 384.59 ms. Allocated memory is still 200.8 MB. Free memory was 177.9 MB in the beginning and 159.4 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 942.79 ms. Allocated memory is still 200.8 MB. Free memory was 158.7 MB in the beginning and 99.5 MB in the end (delta: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long *a = malloc(sizeof(long long)*N); [L27] long long sum[1]; [L29] sum[0] = 1 [L30] i=0 [L30] COND TRUE i