/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 false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/matrix-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 13:26:10,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 13:26:10,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 13:26:10,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 13:26:10,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 13:26:10,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 13:26:10,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 13:26:10,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 13:26:10,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 13:26:10,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 13:26:10,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 13:26:10,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 13:26:10,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 13:26:10,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 13:26:10,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 13:26:10,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 13:26:10,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 13:26:10,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 13:26:10,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 13:26:10,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 13:26:10,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 13:26:10,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 13:26:10,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 13:26:10,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 13:26:10,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 13:26:10,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 13:26:10,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 13:26:10,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 13:26:10,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 13:26:10,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 13:26:10,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 13:26:10,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 13:26:10,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 13:26:10,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 13:26:10,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 13:26:10,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 13:26:10,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 13:26:10,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 13:26:10,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 13:26:10,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 13:26:10,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 13:26:10,375 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 [2020-08-21 13:26:10,415 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 13:26:10,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 13:26:10,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 13:26:10,418 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 13:26:10,418 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 13:26:10,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 13:26:10,418 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 13:26:10,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 13:26:10,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 13:26:10,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 13:26:10,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 13:26:10,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 13:26:10,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 13:26:10,421 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 13:26:10,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 13:26:10,421 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 13:26:10,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 13:26:10,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 13:26:10,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 13:26:10,422 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 13:26:10,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 13:26:10,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 13:26:10,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 13:26:10,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 13:26:10,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 13:26:10,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 13:26:10,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 13:26:10,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 13:26:10,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 13:26:10,424 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 -> false [2020-08-21 13:26:10,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 13:26:10,749 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 13:26:10,752 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 13:26:10,753 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 13:26:10,754 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 13:26:10,754 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix-1.c [2020-08-21 13:26:10,828 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/845a2e856/902c208662c7465a808933c7929f92ab/FLAGf0e16368e [2020-08-21 13:26:11,297 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 13:26:11,298 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/matrix-1.c [2020-08-21 13:26:11,305 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/845a2e856/902c208662c7465a808933c7929f92ab/FLAGf0e16368e [2020-08-21 13:26:11,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/845a2e856/902c208662c7465a808933c7929f92ab [2020-08-21 13:26:11,669 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 13:26:11,671 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 13:26:11,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 13:26:11,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 13:26:11,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 13:26:11,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:26:11" (1/1) ... [2020-08-21 13:26:11,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1573d552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:26:11, skipping insertion in model container [2020-08-21 13:26:11,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:26:11" (1/1) ... [2020-08-21 13:26:11,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 13:26:11,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 13:26:11,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:26:11,929 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 13:26:11,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:26:11,968 INFO L208 MainTranslator]: Completed translation [2020-08-21 13:26:11,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:26:11 WrapperNode [2020-08-21 13:26:11,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 13:26:11,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 13:26:11,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 13:26:11,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 13:26:12,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:26:11" (1/1) ... [2020-08-21 13:26:12,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:26:11" (1/1) ... [2020-08-21 13:26:12,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:26:11" (1/1) ... [2020-08-21 13:26:12,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:26:11" (1/1) ... [2020-08-21 13:26:12,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:26:11" (1/1) ... [2020-08-21 13:26:12,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:26:11" (1/1) ... [2020-08-21 13:26:12,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:26:11" (1/1) ... [2020-08-21 13:26:12,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 13:26:12,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 13:26:12,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 13:26:12,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 13:26:12,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:26:11" (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 [2020-08-21 13:26:12,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 13:26:12,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 13:26:12,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-21 13:26:12,140 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 13:26:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 13:26:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-21 13:26:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 13:26:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 13:26:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 13:26:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 13:26:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 13:26:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 13:26:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 13:26:12,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 13:26:12,429 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 13:26:12,429 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-21 13:26:12,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:26:12 BoogieIcfgContainer [2020-08-21 13:26:12,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 13:26:12,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 13:26:12,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 13:26:12,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 13:26:12,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 01:26:11" (1/3) ... [2020-08-21 13:26:12,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe55b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:26:12, skipping insertion in model container [2020-08-21 13:26:12,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:26:11" (2/3) ... [2020-08-21 13:26:12,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe55b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:26:12, skipping insertion in model container [2020-08-21 13:26:12,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:26:12" (3/3) ... [2020-08-21 13:26:12,448 INFO L109 eAbstractionObserver]: Analyzing ICFG matrix-1.c [2020-08-21 13:26:12,459 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 13:26:12,466 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 13:26:12,480 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 13:26:12,503 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 13:26:12,503 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 13:26:12,503 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 13:26:12,503 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 13:26:12,503 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 13:26:12,503 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 13:26:12,504 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 13:26:12,504 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 13:26:12,526 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-08-21 13:26:12,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-08-21 13:26:12,530 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:26:12,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:26:12,532 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:26:12,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:26:12,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1330517862, now seen corresponding path program 1 times [2020-08-21 13:26:12,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:26:12,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941740507] [2020-08-21 13:26:12,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:26:12,640 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-08-21 13:26:12,641 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-08-21 13:26:12,641 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 13:26:12,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 13:26:12,658 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-08-21 13:26:12,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 01:26:12 BoogieIcfgContainer [2020-08-21 13:26:12,659 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 13:26:12,662 INFO L168 Benchmark]: Toolchain (without parser) took 990.00 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 101.0 MB in the beginning and 150.1 MB in the end (delta: -49.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-08-21 13:26:12,663 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 13:26:12,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.69 ms. Allocated memory is still 137.9 MB. Free memory was 100.8 MB in the beginning and 90.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-08-21 13:26:12,666 INFO L168 Benchmark]: Boogie Preprocessor took 109.10 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 90.6 MB in the beginning and 177.1 MB in the end (delta: -86.4 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2020-08-21 13:26:12,667 INFO L168 Benchmark]: RCFGBuilder took 355.32 ms. Allocated memory is still 199.8 MB. Free memory was 177.1 MB in the beginning and 161.2 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2020-08-21 13:26:12,669 INFO L168 Benchmark]: TraceAbstraction took 223.26 ms. Allocated memory is still 199.8 MB. Free memory was 161.2 MB in the beginning and 150.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-08-21 13:26:12,677 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 294.69 ms. Allocated memory is still 137.9 MB. Free memory was 100.8 MB in the beginning and 90.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.10 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 90.6 MB in the beginning and 177.1 MB in the end (delta: -86.4 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 355.32 ms. Allocated memory is still 199.8 MB. Free memory was 177.1 MB in the beginning and 161.2 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 223.26 ms. Allocated memory is still 199.8 MB. Free memory was 161.2 MB in the beginning and 150.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 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: [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...