/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -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-c90d42b [2020-09-25 02:18:55,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:18:55,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:18:55,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:18:55,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:18:55,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:18:55,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:18:55,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:18:55,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:18:55,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:18:55,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:18:55,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:18:55,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:18:55,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:18:55,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:18:55,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:18:55,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:18:55,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:18:55,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:18:55,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:18:55,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:18:55,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:18:55,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:18:55,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:18:55,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:18:55,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:18:55,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:18:55,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:18:55,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:18:55,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:18:55,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:18:55,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:18:55,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:18:55,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:18:55,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:18:55,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:18:55,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:18:55,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:18:55,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:18:55,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:18:55,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:18:55,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:18:55,646 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:18:55,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:18:55,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:18:55,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:18:55,649 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:18:55,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:18:55,650 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:18:55,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:18:55,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:18:55,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:18:55,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:18:55,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:18:55,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:18:55,652 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:18:55,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:18:55,653 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:18:55,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:18:55,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:18:55,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:18:55,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:18:55,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:18:55,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:18:55,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:18:55,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:18:55,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:18:55,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:18:55,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:18:55,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:18:55,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:18:55,656 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.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 02:18:56,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:18:56,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:18:56,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:18:56,145 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:18:56,145 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:18:56,146 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix-2.c [2020-09-25 02:18:56,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/caabb98ce/a35d78591ebd4dfa804f00cbea79178b/FLAG916684968 [2020-09-25 02:18:56,757 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:18:56,758 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/matrix-2.c [2020-09-25 02:18:56,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/caabb98ce/a35d78591ebd4dfa804f00cbea79178b/FLAG916684968 [2020-09-25 02:18:57,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/caabb98ce/a35d78591ebd4dfa804f00cbea79178b [2020-09-25 02:18:57,092 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:18:57,098 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:18:57,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:18:57,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:18:57,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:18:57,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:57" (1/1) ... [2020-09-25 02:18:57,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a9cd5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:57, skipping insertion in model container [2020-09-25 02:18:57,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:57" (1/1) ... [2020-09-25 02:18:57,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:18:57,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:18:57,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:18:57,405 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:18:57,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:18:57,451 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:18:57,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:57 WrapperNode [2020-09-25 02:18:57,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:18:57,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:18:57,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:18:57,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:18:57,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:57" (1/1) ... [2020-09-25 02:18:57,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:57" (1/1) ... [2020-09-25 02:18:57,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:57" (1/1) ... [2020-09-25 02:18:57,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:57" (1/1) ... [2020-09-25 02:18:57,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:57" (1/1) ... [2020-09-25 02:18:57,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:57" (1/1) ... [2020-09-25 02:18:57,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:57" (1/1) ... [2020-09-25 02:18:57,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:18:57,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:18:57,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:18:57,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:18:57,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:18:57,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:18:57,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:18:57,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 02:18:57,674 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:18:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:18:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 02:18:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 02:18:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:18:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:18:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:18:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:18:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:18:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:18:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:18:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:18:58,048 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:18:58,048 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 02:18:58,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:58 BoogieIcfgContainer [2020-09-25 02:18:58,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:18:58,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:18:58,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:18:58,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:18:58,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:18:57" (1/3) ... [2020-09-25 02:18:58,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7759ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:58, skipping insertion in model container [2020-09-25 02:18:58,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:57" (2/3) ... [2020-09-25 02:18:58,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7759ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:58, skipping insertion in model container [2020-09-25 02:18:58,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:58" (3/3) ... [2020-09-25 02:18:58,063 INFO L109 eAbstractionObserver]: Analyzing ICFG matrix-2.c [2020-09-25 02:18:58,075 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:18:58,084 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:18:58,107 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:18:58,137 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:18:58,137 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:18:58,137 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:18:58,138 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:18:58,138 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:18:58,138 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:18:58,138 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:18:58,138 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:18:58,160 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2020-09-25 02:18:58,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-25 02:18:58,168 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:18:58,169 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] [2020-09-25 02:18:58,169 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:18:58,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:18:58,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1292931923, now seen corresponding path program 1 times [2020-09-25 02:18:58,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:18:58,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421402657] [2020-09-25 02:18:58,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:18:58,298 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-09-25 02:18:58,299 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-09-25 02:18:58,299 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 02:18:58,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:18:58,320 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-09-25 02:18:58,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:18:58 BoogieIcfgContainer [2020-09-25 02:18:58,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:18:58,325 INFO L168 Benchmark]: Toolchain (without parser) took 1229.51 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 101.9 MB in the beginning and 147.0 MB in the end (delta: -45.1 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:58,326 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 120.2 MB in the beginning and 119.7 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-25 02:18:58,328 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.49 ms. Allocated memory is still 139.5 MB. Free memory was 101.5 MB in the beginning and 91.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:58,329 INFO L168 Benchmark]: Boogie Preprocessor took 141.78 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 91.1 MB in the beginning and 179.1 MB in the end (delta: -88.0 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:58,330 INFO L168 Benchmark]: RCFGBuilder took 459.28 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 159.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:58,331 INFO L168 Benchmark]: TraceAbstraction took 266.18 ms. Allocated memory is still 201.9 MB. Free memory was 159.1 MB in the beginning and 147.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:58,336 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 120.2 MB in the beginning and 119.7 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 352.49 ms. Allocated memory is still 139.5 MB. Free memory was 101.5 MB in the beginning and 91.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.78 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 91.1 MB in the beginning and 179.1 MB in the end (delta: -88.0 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 459.28 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 159.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 266.18 ms. Allocated memory is still 201.9 MB. Free memory was 159.1 MB in the beginning and 147.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 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 [L20] COND FALSE !(j