/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=1.0 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/matrix-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 02:53:22,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 02:53:22,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 02:53:23,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 02:53:23,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 02:53:23,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 02:53:23,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 02:53:23,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 02:53:23,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 02:53:23,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 02:53:23,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 02:53:23,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 02:53:23,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 02:53:23,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 02:53:23,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 02:53:23,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 02:53:23,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 02:53:23,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 02:53:23,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 02:53:23,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 02:53:23,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 02:53:23,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 02:53:23,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 02:53:23,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 02:53:23,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 02:53:23,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 02:53:23,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 02:53:23,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 02:53:23,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 02:53:23,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 02:53:23,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 02:53:23,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 02:53:23,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 02:53:23,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 02:53:23,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 02:53:23,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 02:53:23,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 02:53:23,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 02:53:23,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 02:53:23,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 02:53:23,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 02:53:23,071 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 02:53:23,109 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 02:53:23,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 02:53:23,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 02:53:23,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 02:53:23,111 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 02:53:23,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 02:53:23,111 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 02:53:23,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 02:53:23,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 02:53:23,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 02:53:23,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 02:53:23,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 02:53:23,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 02:53:23,114 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 02:53:23,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 02:53:23,114 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 02:53:23,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 02:53:23,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 02:53:23,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 02:53:23,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 02:53:23,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 02:53:23,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 02:53:23,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 02:53:23,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 02:53:23,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 02:53:23,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 02:53:23,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 02:53:23,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 02:53:23,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 02:53:23,117 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=1.0; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0; [2020-08-19 02:53:23,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 02:53:23,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 02:53:23,426 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 02:53:23,428 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 02:53:23,430 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 02:53:23,431 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix-2.c [2020-08-19 02:53:23,504 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54cb8e294/87bcb47d18734438a07be9c1e7220d8c/FLAG9ad26c4b1 [2020-08-19 02:53:23,960 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 02:53:23,960 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/matrix-2.c [2020-08-19 02:53:23,967 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54cb8e294/87bcb47d18734438a07be9c1e7220d8c/FLAG9ad26c4b1 [2020-08-19 02:53:24,361 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54cb8e294/87bcb47d18734438a07be9c1e7220d8c [2020-08-19 02:53:24,373 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 02:53:24,374 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 02:53:24,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 02:53:24,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 02:53:24,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 02:53:24,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 02:53:24" (1/1) ... [2020-08-19 02:53:24,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac0f60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:24, skipping insertion in model container [2020-08-19 02:53:24,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 02:53:24" (1/1) ... [2020-08-19 02:53:24,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 02:53:24,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 02:53:24,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 02:53:24,600 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 02:53:24,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 02:53:24,724 INFO L208 MainTranslator]: Completed translation [2020-08-19 02:53:24,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:24 WrapperNode [2020-08-19 02:53:24,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 02:53:24,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 02:53:24,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 02:53:24,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 02:53:24,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:24" (1/1) ... [2020-08-19 02:53:24,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:24" (1/1) ... [2020-08-19 02:53:24,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:24" (1/1) ... [2020-08-19 02:53:24,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:24" (1/1) ... [2020-08-19 02:53:24,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:24" (1/1) ... [2020-08-19 02:53:24,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:24" (1/1) ... [2020-08-19 02:53:24,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:24" (1/1) ... [2020-08-19 02:53:24,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 02:53:24,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 02:53:24,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 02:53:24,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 02:53:24,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:24" (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 02:53:24,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 02:53:24,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 02:53:24,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-19 02:53:24,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 02:53:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 02:53:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-19 02:53:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-08-19 02:53:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 02:53:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 02:53:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 02:53:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 02:53:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 02:53:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 02:53:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 02:53:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 02:53:25,113 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 02:53:25,114 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-19 02:53:25,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 02:53:25 BoogieIcfgContainer [2020-08-19 02:53:25,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 02:53:25,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 02:53:25,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 02:53:25,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 02:53:25,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 02:53:24" (1/3) ... [2020-08-19 02:53:25,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aae4656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 02:53:25, skipping insertion in model container [2020-08-19 02:53:25,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:24" (2/3) ... [2020-08-19 02:53:25,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aae4656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 02:53:25, skipping insertion in model container [2020-08-19 02:53:25,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 02:53:25" (3/3) ... [2020-08-19 02:53:25,125 INFO L109 eAbstractionObserver]: Analyzing ICFG matrix-2.c [2020-08-19 02:53:25,135 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 02:53:25,143 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 02:53:25,157 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 02:53:25,180 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 02:53:25,180 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 02:53:25,180 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 02:53:25,181 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 02:53:25,181 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 02:53:25,181 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 02:53:25,181 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 02:53:25,181 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 02:53:25,201 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-08-19 02:53:25,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-19 02:53:25,208 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:53:25,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 02:53:25,209 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:53:25,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:53:25,215 INFO L82 PathProgramCache]: Analyzing trace with hash -2125374060, now seen corresponding path program 1 times [2020-08-19 02:53:25,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:53:25,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070743670] [2020-08-19 02:53:25,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:53:25,310 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-08-19 02:53:25,310 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-08-19 02:53:25,310 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 02:53:25,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 02:53:25,329 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-08-19 02:53:25,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 02:53:25 BoogieIcfgContainer [2020-08-19 02:53:25,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 02:53:25,333 INFO L168 Benchmark]: Toolchain (without parser) took 957.51 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 104.5 MB in the beginning and 152.4 MB in the end (delta: -48.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2020-08-19 02:53:25,334 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-19 02:53:25,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.88 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 104.0 MB in the beginning and 183.1 MB in the end (delta: -79.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-08-19 02:53:25,337 INFO L168 Benchmark]: Boogie Preprocessor took 43.11 ms. Allocated memory is still 204.5 MB. Free memory was 183.1 MB in the beginning and 181.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-08-19 02:53:25,338 INFO L168 Benchmark]: RCFGBuilder took 347.38 ms. Allocated memory is still 204.5 MB. Free memory was 181.2 MB in the beginning and 164.0 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2020-08-19 02:53:25,339 INFO L168 Benchmark]: TraceAbstraction took 211.47 ms. Allocated memory is still 204.5 MB. Free memory was 163.3 MB in the beginning and 152.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-08-19 02:53:25,343 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 349.88 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 104.0 MB in the beginning and 183.1 MB in the end (delta: -79.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.11 ms. Allocated memory is still 204.5 MB. Free memory was 183.1 MB in the beginning and 181.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 347.38 ms. Allocated memory is still 204.5 MB. Free memory was 181.2 MB in the beginning and 164.0 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211.47 ms. Allocated memory is still 204.5 MB. Free memory was 163.3 MB in the beginning and 152.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 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: [L14] unsigned int N_LIN=__VERIFIER_nondet_uint(); [L15] unsigned int N_COL=__VERIFIER_nondet_uint(); [L16] unsigned int j,k; [L17] int matriz[N_COL][N_LIN], maior; [L19] maior = __VERIFIER_nondet_int() [L20] j=0 [L29] j=0 [L29] COND TRUE j