/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-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 23:38:59,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 23:38:59,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 23:38:59,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 23:38:59,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 23:38:59,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 23:38:59,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 23:38:59,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 23:38:59,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 23:38:59,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 23:38:59,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 23:38:59,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 23:38:59,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 23:38:59,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 23:38:59,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 23:38:59,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 23:38:59,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 23:38:59,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 23:38:59,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 23:38:59,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 23:38:59,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 23:38:59,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 23:38:59,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 23:38:59,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 23:38:59,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 23:38:59,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 23:38:59,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 23:38:59,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 23:38:59,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 23:38:59,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 23:38:59,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 23:38:59,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 23:38:59,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 23:38:59,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 23:38:59,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 23:38:59,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 23:38:59,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 23:38:59,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 23:38:59,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 23:38:59,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 23:38:59,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 23:38:59,771 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 23:38:59,818 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 23:38:59,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 23:38:59,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 23:38:59,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 23:38:59,822 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 23:38:59,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 23:38:59,823 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 23:38:59,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 23:38:59,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 23:38:59,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 23:38:59,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 23:38:59,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 23:38:59,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 23:38:59,825 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 23:38:59,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 23:38:59,825 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 23:38:59,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 23:38:59,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 23:38:59,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 23:38:59,827 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 23:38:59,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 23:38:59,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 23:38:59,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 23:38:59,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 23:38:59,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 23:38:59,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 23:38:59,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 23:38:59,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 23:38:59,829 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 23:38:59,829 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 23:39:00,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 23:39:00,166 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 23:39:00,170 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 23:39:00,171 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 23:39:00,172 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 23:39:00,172 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix-2.c [2020-08-18 23:39:00,254 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b16b9ec83/2b0a6b195c3f41aa84845e55c0fd6e03/FLAG6962dd88c [2020-08-18 23:39:00,698 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 23:39:00,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/matrix-2.c [2020-08-18 23:39:00,705 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b16b9ec83/2b0a6b195c3f41aa84845e55c0fd6e03/FLAG6962dd88c [2020-08-18 23:39:01,092 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b16b9ec83/2b0a6b195c3f41aa84845e55c0fd6e03 [2020-08-18 23:39:01,103 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 23:39:01,105 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 23:39:01,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 23:39:01,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 23:39:01,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 23:39:01,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:39:01" (1/1) ... [2020-08-18 23:39:01,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51d7e22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:01, skipping insertion in model container [2020-08-18 23:39:01,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:39:01" (1/1) ... [2020-08-18 23:39:01,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 23:39:01,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 23:39:01,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:39:01,373 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 23:39:01,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:39:01,419 INFO L208 MainTranslator]: Completed translation [2020-08-18 23:39:01,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:01 WrapperNode [2020-08-18 23:39:01,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 23:39:01,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 23:39:01,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 23:39:01,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 23:39:01,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:01" (1/1) ... [2020-08-18 23:39:01,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:01" (1/1) ... [2020-08-18 23:39:01,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:01" (1/1) ... [2020-08-18 23:39:01,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:01" (1/1) ... [2020-08-18 23:39:01,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:01" (1/1) ... [2020-08-18 23:39:01,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:01" (1/1) ... [2020-08-18 23:39:01,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:01" (1/1) ... [2020-08-18 23:39:01,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 23:39:01,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 23:39:01,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 23:39:01,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 23:39:01,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:01" (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 23:39:01,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 23:39:01,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 23:39:01,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-18 23:39:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 23:39:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 23:39:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-18 23:39:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-08-18 23:39:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 23:39:01,610 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 23:39:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 23:39:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 23:39:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 23:39:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 23:39:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 23:39:01,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 23:39:01,961 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 23:39:01,962 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-18 23:39:01,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:39:01 BoogieIcfgContainer [2020-08-18 23:39:01,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 23:39:01,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 23:39:01,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 23:39:01,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 23:39:01,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 11:39:01" (1/3) ... [2020-08-18 23:39:01,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b82147 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 23:39:01,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:39:01" (2/3) ... [2020-08-18 23:39:01,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b82147 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 23:39:01,973 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 23:39:01,975 INFO L109 eAbstractionObserver]: Analyzing ICFG matrix-2.c [2020-08-18 23:39:01,985 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 23:39:01,993 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 23:39:02,008 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 23:39:02,032 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 23:39:02,033 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 23:39:02,033 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 23:39:02,033 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 23:39:02,033 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 23:39:02,033 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 23:39:02,033 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 23:39:02,033 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 23:39:02,050 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-08-18 23:39:02,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-18 23:39:02,055 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:39:02,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:39:02,057 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:39:02,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:39:02,062 INFO L82 PathProgramCache]: Analyzing trace with hash -2125374060, now seen corresponding path program 1 times [2020-08-18 23:39:02,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:39:02,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806434966] [2020-08-18 23:39:02,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:39:02,157 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-08-18 23:39:02,157 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-08-18 23:39:02,158 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 23:39:02,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 23:39:02,179 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-08-18 23:39:02,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 11:39:02 BoogieIcfgContainer [2020-08-18 23:39:02,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 23:39:02,183 INFO L168 Benchmark]: Toolchain (without parser) took 1077.10 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 103.3 MB in the beginning and 150.3 MB in the end (delta: -47.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2020-08-18 23:39:02,184 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 23:39:02,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.56 ms. Allocated memory is still 140.0 MB. Free memory was 103.1 MB in the beginning and 92.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-08-18 23:39:02,186 INFO L168 Benchmark]: Boogie Preprocessor took 117.92 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 92.2 MB in the beginning and 179.2 MB in the end (delta: -87.0 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-08-18 23:39:02,187 INFO L168 Benchmark]: RCFGBuilder took 426.79 ms. Allocated memory is still 201.9 MB. Free memory was 179.2 MB in the beginning and 162.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. [2020-08-18 23:39:02,188 INFO L168 Benchmark]: TraceAbstraction took 212.78 ms. Allocated memory is still 201.9 MB. Free memory was 161.6 MB in the beginning and 150.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-08-18 23:39:02,193 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 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 314.56 ms. Allocated memory is still 140.0 MB. Free memory was 103.1 MB in the beginning and 92.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.92 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 92.2 MB in the beginning and 179.2 MB in the end (delta: -87.0 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 426.79 ms. Allocated memory is still 201.9 MB. Free memory was 179.2 MB in the beginning and 162.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212.78 ms. Allocated memory is still 201.9 MB. Free memory was 161.6 MB in the beginning and 150.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 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