/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/matrix-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 23:38:58,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 23:38:58,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 23:38:58,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 23:38:58,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 23:38:58,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 23:38:58,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 23:38:58,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 23:38:58,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 23:38:58,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 23:38:58,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 23:38:58,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 23:38:58,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 23:38:58,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 23:38:58,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 23:38:58,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 23:38:58,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 23:38:58,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 23:38:58,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 23:38:58,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 23:38:58,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 23:38:58,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 23:38:58,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 23:38:58,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 23:38:58,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 23:38:58,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 23:38:58,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 23:38:58,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 23:38:58,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 23:38:58,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 23:38:58,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 23:38:58,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 23:38:58,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 23:38:58,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 23:38:58,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 23:38:58,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 23:38:58,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 23:38:58,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 23:38:58,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 23:38:58,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 23:38:58,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 23:38:58,987 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 [2020-08-18 23:38:59,025 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 23:38:59,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 23:38:59,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 23:38:59,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 23:38:59,027 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 23:38:59,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 23:38:59,028 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 23:38:59,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 23:38:59,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 23:38:59,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 23:38:59,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 23:38:59,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 23:38:59,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 23:38:59,029 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 23:38:59,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 23:38:59,029 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 23:38:59,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 23:38:59,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 23:38:59,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 23:38:59,032 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 23:38:59,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 23:38:59,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 23:38:59,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 23:38:59,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 23:38:59,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 23:38:59,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 23:38:59,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 23:38:59,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 23:38:59,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 23:38:59,034 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=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; [2020-08-18 23:38:59,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 23:38:59,394 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 23:38:59,398 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 23:38:59,400 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 23:38:59,401 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 23:38:59,402 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix-1.c [2020-08-18 23:38:59,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85ef6c965/6b1c11f932c745eb942c9104abef6389/FLAG79f9c2e94 [2020-08-18 23:38:59,983 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 23:38:59,984 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/matrix-1.c [2020-08-18 23:38:59,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85ef6c965/6b1c11f932c745eb942c9104abef6389/FLAG79f9c2e94 [2020-08-18 23:39:00,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85ef6c965/6b1c11f932c745eb942c9104abef6389 [2020-08-18 23:39:00,330 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 23:39:00,332 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 23:39:00,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 23:39:00,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 23:39:00,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 23:39:00,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:39:00" (1/1) ... [2020-08-18 23:39:00,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425c36b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:00, skipping insertion in model container [2020-08-18 23:39:00,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:39:00" (1/1) ... [2020-08-18 23:39:00,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 23:39:00,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 23:39:00,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:39:00,568 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 23:39:00,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:39:00,611 INFO L208 MainTranslator]: Completed translation [2020-08-18 23:39:00,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:00 WrapperNode [2020-08-18 23:39:00,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 23:39:00,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 23:39:00,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 23:39:00,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 23:39:00,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:00" (1/1) ... [2020-08-18 23:39:00,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:00" (1/1) ... [2020-08-18 23:39:00,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:00" (1/1) ... [2020-08-18 23:39:00,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:00" (1/1) ... [2020-08-18 23:39:00,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:00" (1/1) ... [2020-08-18 23:39:00,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:00" (1/1) ... [2020-08-18 23:39:00,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:00" (1/1) ... [2020-08-18 23:39:00,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 23:39:00,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 23:39:00,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 23:39:00,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 23:39:00,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:00" (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 [2020-08-18 23:39:00,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 23:39:00,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 23:39:00,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-18 23:39:00,797 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 23:39:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 23:39:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-18 23:39:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 23:39:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 23:39:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 23:39:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 23:39:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 23:39:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 23:39:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 23:39:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 23:39:01,080 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 23:39:01,080 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-18 23:39:01,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:39:01 BoogieIcfgContainer [2020-08-18 23:39:01,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 23:39:01,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 23:39:01,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 23:39:01,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 23:39:01,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 11:39:00" (1/3) ... [2020-08-18 23:39:01,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aaec90b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:39:01, skipping insertion in model container [2020-08-18 23:39:01,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:00" (2/3) ... [2020-08-18 23:39:01,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aaec90b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:39:01, skipping insertion in model container [2020-08-18 23:39:01,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:39:01" (3/3) ... [2020-08-18 23:39:01,111 INFO L109 eAbstractionObserver]: Analyzing ICFG matrix-1.c [2020-08-18 23:39:01,127 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 23:39:01,134 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 23:39:01,148 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 23:39:01,168 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 23:39:01,168 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 23:39:01,168 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 23:39:01,168 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 23:39:01,169 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 23:39:01,169 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 23:39:01,169 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 23:39:01,169 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 23:39:01,186 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-08-18 23:39:01,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-08-18 23:39:01,190 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:39:01,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:39:01,192 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:39:01,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:39:01,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1330517862, now seen corresponding path program 1 times [2020-08-18 23:39:01,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:39:01,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1962313171] [2020-08-18 23:39:01,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:39:01,298 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-08-18 23:39:01,299 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-08-18 23:39:01,299 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 23:39:01,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 23:39:01,316 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-08-18 23:39:01,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 11:39:01 BoogieIcfgContainer [2020-08-18 23:39:01,316 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 23:39:01,319 INFO L168 Benchmark]: Toolchain (without parser) took 986.27 ms. Allocated memory was 148.4 MB in the beginning and 203.4 MB in the end (delta: 55.1 MB). Free memory was 104.6 MB in the beginning and 153.8 MB in the end (delta: -49.2 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. [2020-08-18 23:39:01,320 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-18 23:39:01,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.66 ms. Allocated memory is still 148.4 MB. Free memory was 104.4 MB in the beginning and 93.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-08-18 23:39:01,323 INFO L168 Benchmark]: Boogie Preprocessor took 118.39 ms. Allocated memory was 148.4 MB in the beginning and 203.4 MB in the end (delta: 55.1 MB). Free memory was 93.7 MB in the beginning and 181.0 MB in the end (delta: -87.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-08-18 23:39:01,324 INFO L168 Benchmark]: RCFGBuilder took 353.13 ms. Allocated memory is still 203.4 MB. Free memory was 181.0 MB in the beginning and 165.3 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2020-08-18 23:39:01,325 INFO L168 Benchmark]: TraceAbstraction took 228.71 ms. Allocated memory is still 203.4 MB. Free memory was 165.3 MB in the beginning and 153.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2020-08-18 23:39:01,329 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 278.66 ms. Allocated memory is still 148.4 MB. Free memory was 104.4 MB in the beginning and 93.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.39 ms. Allocated memory was 148.4 MB in the beginning and 203.4 MB in the end (delta: 55.1 MB). Free memory was 93.7 MB in the beginning and 181.0 MB in the end (delta: -87.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 353.13 ms. Allocated memory is still 203.4 MB. Free memory was 181.0 MB in the beginning and 165.3 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 228.71 ms. Allocated memory is still 203.4 MB. Free memory was 165.3 MB in the beginning and 153.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: 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: [L13] unsigned int N_LIN=1; [L14] unsigned int N_COL=1; [L15] unsigned int j,k; [L16] int matriz[N_COL][N_LIN], maior; [L18] maior = __VERIFIER_nondet_int() [L19] j=0 [L28] EXPR matriz[0][0] [L28] CALL __VERIFIER_assert(matriz[0][0]<=maior) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...