/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=LOWLEXORDER -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/simple_2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 18:49:06,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 18:49:06,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 18:49:06,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 18:49:06,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 18:49:06,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 18:49:06,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 18:49:06,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 18:49:06,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 18:49:06,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 18:49:06,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 18:49:06,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 18:49:06,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 18:49:06,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 18:49:06,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 18:49:06,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 18:49:06,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 18:49:06,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 18:49:06,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 18:49:06,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 18:49:06,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 18:49:06,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 18:49:06,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 18:49:06,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 18:49:06,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 18:49:06,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 18:49:06,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 18:49:06,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 18:49:06,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 18:49:06,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 18:49:06,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 18:49:06,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 18:49:06,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 18:49:06,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 18:49:06,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 18:49:06,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 18:49:06,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 18:49:06,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 18:49:06,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 18:49:06,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 18:49:06,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 18:49:06,410 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 18:49:06,460 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 18:49:06,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 18:49:06,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 18:49:06,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 18:49:06,462 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 18:49:06,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 18:49:06,463 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 18:49:06,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 18:49:06,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 18:49:06,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 18:49:06,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 18:49:06,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 18:49:06,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 18:49:06,464 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 18:49:06,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 18:49:06,464 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 18:49:06,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 18:49:06,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 18:49:06,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 18:49:06,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 18:49:06,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 18:49:06,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 18:49:06,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 18:49:06,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 18:49:06,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 18:49:06,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 18:49:06,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 18:49:06,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 18:49:06,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 18:49:06,469 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=LOWLEXORDER; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=LOWLEXORDER; [2020-08-18 18:49:06,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 18:49:06,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 18:49:06,821 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 18:49:06,822 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 18:49:06,823 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 18:49:06,824 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_2-2.c [2020-08-18 18:49:06,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be1e3e407/57e9afb35b554204a896b3d5721ffb58/FLAGd2f53edcb [2020-08-18 18:49:07,333 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 18:49:07,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-acceleration/simple_2-2.c [2020-08-18 18:49:07,340 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be1e3e407/57e9afb35b554204a896b3d5721ffb58/FLAGd2f53edcb [2020-08-18 18:49:07,695 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be1e3e407/57e9afb35b554204a896b3d5721ffb58 [2020-08-18 18:49:07,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 18:49:07,709 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 18:49:07,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 18:49:07,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 18:49:07,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 18:49:07,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:49:07" (1/1) ... [2020-08-18 18:49:07,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e0ef97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:49:07, skipping insertion in model container [2020-08-18 18:49:07,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:49:07" (1/1) ... [2020-08-18 18:49:07,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 18:49:07,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 18:49:07,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 18:49:07,939 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 18:49:07,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 18:49:07,972 INFO L208 MainTranslator]: Completed translation [2020-08-18 18:49:07,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:49:07 WrapperNode [2020-08-18 18:49:07,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 18:49:07,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 18:49:07,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 18:49:07,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 18:49:07,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:49:07" (1/1) ... [2020-08-18 18:49:07,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:49:07" (1/1) ... [2020-08-18 18:49:07,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:49:07" (1/1) ... [2020-08-18 18:49:07,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:49:07" (1/1) ... [2020-08-18 18:49:08,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:49:07" (1/1) ... [2020-08-18 18:49:08,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:49:07" (1/1) ... [2020-08-18 18:49:08,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:49:07" (1/1) ... [2020-08-18 18:49:08,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 18:49:08,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 18:49:08,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 18:49:08,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 18:49:08,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:49:07" (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 18:49:08,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 18:49:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 18:49:08,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-18 18:49:08,195 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 18:49:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 18:49:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-08-18 18:49:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-18 18:49:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 18:49:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 18:49:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 18:49:08,359 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 18:49:08,359 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 18:49:08,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:49:08 BoogieIcfgContainer [2020-08-18 18:49:08,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 18:49:08,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 18:49:08,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 18:49:08,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 18:49:08,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 06:49:07" (1/3) ... [2020-08-18 18:49:08,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0d102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 06:49:08, skipping insertion in model container [2020-08-18 18:49:08,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:49:07" (2/3) ... [2020-08-18 18:49:08,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0d102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 06:49:08, skipping insertion in model container [2020-08-18 18:49:08,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:49:08" (3/3) ... [2020-08-18 18:49:08,371 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_2-2.c [2020-08-18 18:49:08,383 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 18:49:08,395 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 18:49:08,409 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 18:49:08,432 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 18:49:08,433 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 18:49:08,433 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 18:49:08,433 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 18:49:08,433 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 18:49:08,433 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 18:49:08,434 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 18:49:08,434 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 18:49:08,452 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-08-18 18:49:08,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-08-18 18:49:08,458 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:49:08,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 18:49:08,459 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:49:08,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:49:08,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1846144830, now seen corresponding path program 1 times [2020-08-18 18:49:08,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:49:08,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123768623] [2020-08-18 18:49:08,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:49:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 18:49:08,582 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 18:49:08,583 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 18:49:08,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 18:49:08,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 06:49:08 BoogieIcfgContainer [2020-08-18 18:49:08,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 18:49:08,602 INFO L168 Benchmark]: Toolchain (without parser) took 892.75 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 100.8 MB in the beginning and 159.9 MB in the end (delta: -59.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 18:49:08,603 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 18:49:08,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.33 ms. Allocated memory is still 145.8 MB. Free memory was 100.4 MB in the beginning and 91.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-08-18 18:49:08,605 INFO L168 Benchmark]: Boogie Preprocessor took 153.66 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 91.2 MB in the beginning and 182.9 MB in the end (delta: -91.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-08-18 18:49:08,606 INFO L168 Benchmark]: RCFGBuilder took 235.35 ms. Allocated memory is still 203.9 MB. Free memory was 182.9 MB in the beginning and 171.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-08-18 18:49:08,607 INFO L168 Benchmark]: TraceAbstraction took 234.74 ms. Allocated memory is still 203.9 MB. Free memory was 171.4 MB in the beginning and 159.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2020-08-18 18:49:08,610 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 263.33 ms. Allocated memory is still 145.8 MB. Free memory was 100.4 MB in the beginning and 91.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 153.66 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 91.2 MB in the beginning and 182.9 MB in the end (delta: -91.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 235.35 ms. Allocated memory is still 203.9 MB. Free memory was 182.9 MB in the beginning and 171.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 234.74 ms. Allocated memory is still 203.9 MB. Free memory was 171.4 MB in the beginning and 159.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 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(); [L14] COND FALSE !(x < 0x0fffffff) [L18] CALL __VERIFIER_assert(x > 0x0fffffff) [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...