/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/loop-acceleration/multivar_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 02:53:44,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 02:53:44,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 02:53:44,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 02:53:44,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 02:53:44,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 02:53:44,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 02:53:44,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 02:53:44,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 02:53:44,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 02:53:44,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 02:53:44,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 02:53:44,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 02:53:44,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 02:53:44,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 02:53:44,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 02:53:44,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 02:53:44,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 02:53:44,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 02:53:44,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 02:53:44,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 02:53:44,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 02:53:44,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 02:53:44,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 02:53:44,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 02:53:44,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 02:53:44,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 02:53:44,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 02:53:44,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 02:53:44,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 02:53:44,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 02:53:44,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 02:53:44,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 02:53:44,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 02:53:44,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 02:53:44,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 02:53:44,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 02:53:44,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 02:53:44,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 02:53:44,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 02:53:44,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 02:53:44,859 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 02:53:44,899 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 02:53:44,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 02:53:44,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 02:53:44,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 02:53:44,902 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 02:53:44,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 02:53:44,902 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 02:53:44,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 02:53:44,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 02:53:44,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 02:53:44,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 02:53:44,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 02:53:44,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 02:53:44,905 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 02:53:44,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 02:53:44,905 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 02:53:44,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 02:53:44,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 02:53:44,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 02:53:44,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 02:53:44,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 02:53:44,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 02:53:44,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 02:53:44,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 02:53:44,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 02:53:44,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 02:53:44,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 02:53:44,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 02:53:44,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 02:53:44,908 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 02:53:45,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 02:53:45,218 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 02:53:45,221 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 02:53:45,222 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 02:53:45,223 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 02:53:45,223 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/multivar_1-2.c [2020-08-19 02:53:45,283 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce79b764d/7a1eca443ce84108b744ef92e2ca99d0/FLAGd76eae2ab [2020-08-19 02:53:45,733 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 02:53:45,734 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-acceleration/multivar_1-2.c [2020-08-19 02:53:45,741 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce79b764d/7a1eca443ce84108b744ef92e2ca99d0/FLAGd76eae2ab [2020-08-19 02:53:46,126 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce79b764d/7a1eca443ce84108b744ef92e2ca99d0 [2020-08-19 02:53:46,134 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 02:53:46,136 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 02:53:46,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 02:53:46,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 02:53:46,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 02:53:46,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 02:53:46" (1/1) ... [2020-08-19 02:53:46,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656a7a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:46, skipping insertion in model container [2020-08-19 02:53:46,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 02:53:46" (1/1) ... [2020-08-19 02:53:46,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 02:53:46,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 02:53:46,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 02:53:46,360 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 02:53:46,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 02:53:46,387 INFO L208 MainTranslator]: Completed translation [2020-08-19 02:53:46,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:46 WrapperNode [2020-08-19 02:53:46,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 02:53:46,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 02:53:46,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 02:53:46,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 02:53:46,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:46" (1/1) ... [2020-08-19 02:53:46,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:46" (1/1) ... [2020-08-19 02:53:46,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:46" (1/1) ... [2020-08-19 02:53:46,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:46" (1/1) ... [2020-08-19 02:53:46,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:46" (1/1) ... [2020-08-19 02:53:46,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:46" (1/1) ... [2020-08-19 02:53:46,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:46" (1/1) ... [2020-08-19 02:53:46,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 02:53:46,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 02:53:46,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 02:53:46,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 02:53:46,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:46" (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 02:53:46,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 02:53:46,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 02:53:46,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-19 02:53:46,569 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 02:53:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 02:53:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-08-19 02:53:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-19 02:53:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 02:53:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 02:53:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 02:53:46,746 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 02:53:46,747 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-19 02:53:46,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 02:53:46 BoogieIcfgContainer [2020-08-19 02:53:46,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 02:53:46,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 02:53:46,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 02:53:46,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 02:53:46,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 02:53:46" (1/3) ... [2020-08-19 02:53:46,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e46a19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 02:53:46, skipping insertion in model container [2020-08-19 02:53:46,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 02:53:46" (2/3) ... [2020-08-19 02:53:46,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e46a19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 02:53:46, skipping insertion in model container [2020-08-19 02:53:46,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 02:53:46" (3/3) ... [2020-08-19 02:53:46,765 INFO L109 eAbstractionObserver]: Analyzing ICFG multivar_1-2.c [2020-08-19 02:53:46,777 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 02:53:46,788 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 02:53:46,802 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 02:53:46,830 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 02:53:46,830 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 02:53:46,832 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 02:53:46,832 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 02:53:46,832 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 02:53:46,833 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 02:53:46,833 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 02:53:46,833 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 02:53:46,852 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-08-19 02:53:46,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-08-19 02:53:46,858 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 02:53:46,859 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 02:53:46,860 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 02:53:46,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 02:53:46,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1846144830, now seen corresponding path program 1 times [2020-08-19 02:53:46,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 02:53:46,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [999429990] [2020-08-19 02:53:46,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 02:53:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 02:53:46,983 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 02:53:46,984 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 02:53:46,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 02:53:47,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 02:53:47 BoogieIcfgContainer [2020-08-19 02:53:47,001 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 02:53:47,004 INFO L168 Benchmark]: Toolchain (without parser) took 866.93 ms. Allocated memory was 147.3 MB in the beginning and 206.0 MB in the end (delta: 58.7 MB). Free memory was 104.6 MB in the beginning and 160.9 MB in the end (delta: -56.3 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-08-19 02:53:47,005 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 147.3 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-19 02:53:47,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.66 ms. Allocated memory is still 147.3 MB. Free memory was 104.4 MB in the beginning and 95.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-08-19 02:53:47,008 INFO L168 Benchmark]: Boogie Preprocessor took 117.56 ms. Allocated memory was 147.3 MB in the beginning and 206.0 MB in the end (delta: 58.7 MB). Free memory was 95.0 MB in the beginning and 185.0 MB in the end (delta: -90.0 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-08-19 02:53:47,010 INFO L168 Benchmark]: RCFGBuilder took 245.01 ms. Allocated memory is still 206.0 MB. Free memory was 185.0 MB in the beginning and 173.4 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2020-08-19 02:53:47,011 INFO L168 Benchmark]: TraceAbstraction took 246.98 ms. Allocated memory is still 206.0 MB. Free memory was 172.7 MB in the beginning and 161.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2020-08-19 02:53:47,015 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 147.3 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 251.66 ms. Allocated memory is still 147.3 MB. Free memory was 104.4 MB in the beginning and 95.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.56 ms. Allocated memory was 147.3 MB in the beginning and 206.0 MB in the end (delta: 58.7 MB). Free memory was 95.0 MB in the beginning and 185.0 MB in the end (delta: -90.0 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 245.01 ms. Allocated memory is still 206.0 MB. Free memory was 185.0 MB in the beginning and 173.4 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 246.98 ms. Allocated memory is still 206.0 MB. Free memory was 172.7 MB in the beginning and 161.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] unsigned int x = __VERIFIER_nondet_uint(); [L13] unsigned int y = x + 1; [L15] COND FALSE !(x < 1024) [L20] CALL __VERIFIER_assert(x == y) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, 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=17occurred 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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 proved your program to be incorrect! Received shutdown request...