/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/trex03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 04:30:37,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 04:30:37,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 04:30:37,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 04:30:37,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 04:30:37,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 04:30:37,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 04:30:37,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 04:30:37,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 04:30:37,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 04:30:37,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 04:30:37,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 04:30:37,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 04:30:37,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 04:30:37,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 04:30:37,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 04:30:37,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 04:30:37,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 04:30:37,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 04:30:37,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 04:30:37,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 04:30:37,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 04:30:37,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 04:30:37,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 04:30:37,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 04:30:37,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 04:30:37,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 04:30:37,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 04:30:37,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 04:30:37,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 04:30:37,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 04:30:37,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 04:30:37,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 04:30:37,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 04:30:37,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 04:30:37,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 04:30:37,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 04:30:37,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 04:30:37,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 04:30:37,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 04:30:37,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 04:30:37,799 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 04:30:37,835 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 04:30:37,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 04:30:37,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 04:30:37,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 04:30:37,836 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 04:30:37,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 04:30:37,837 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 04:30:37,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 04:30:37,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 04:30:37,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 04:30:37,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 04:30:37,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 04:30:37,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 04:30:37,838 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 04:30:37,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 04:30:37,838 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 04:30:37,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 04:30:37,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 04:30:37,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 04:30:37,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 04:30:37,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 04:30:37,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 04:30:37,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 04:30:37,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 04:30:37,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 04:30:37,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 04:30:37,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 04:30:37,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 04:30:37,841 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 04:30:37,841 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=SMALLESTAMONGWIDE;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; [2020-08-19 04:30:38,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 04:30:38,159 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 04:30:38,162 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 04:30:38,163 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 04:30:38,164 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 04:30:38,165 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex03-1.c [2020-08-19 04:30:38,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa5101db3/cab7c23a83a24f85a14507dbb8c900fa/FLAGd93dc6c79 [2020-08-19 04:30:38,709 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 04:30:38,709 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/trex03-1.c [2020-08-19 04:30:38,716 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa5101db3/cab7c23a83a24f85a14507dbb8c900fa/FLAGd93dc6c79 [2020-08-19 04:30:39,052 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa5101db3/cab7c23a83a24f85a14507dbb8c900fa [2020-08-19 04:30:39,063 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 04:30:39,065 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 04:30:39,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 04:30:39,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 04:30:39,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 04:30:39,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:30:39" (1/1) ... [2020-08-19 04:30:39,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e83eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:39, skipping insertion in model container [2020-08-19 04:30:39,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:30:39" (1/1) ... [2020-08-19 04:30:39,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 04:30:39,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 04:30:39,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:30:39,297 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 04:30:39,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:30:39,329 INFO L208 MainTranslator]: Completed translation [2020-08-19 04:30:39,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:39 WrapperNode [2020-08-19 04:30:39,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 04:30:39,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 04:30:39,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 04:30:39,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 04:30:39,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:39" (1/1) ... [2020-08-19 04:30:39,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:39" (1/1) ... [2020-08-19 04:30:39,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:39" (1/1) ... [2020-08-19 04:30:39,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:39" (1/1) ... [2020-08-19 04:30:39,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:39" (1/1) ... [2020-08-19 04:30:39,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:39" (1/1) ... [2020-08-19 04:30:39,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:39" (1/1) ... [2020-08-19 04:30:39,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 04:30:39,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 04:30:39,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 04:30:39,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 04:30:39,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:39" (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 04:30:39,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 04:30:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 04:30:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-19 04:30:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 04:30:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 04:30:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-19 04:30:39,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-08-19 04:30:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-08-19 04:30:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 04:30:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 04:30:39,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 04:30:39,707 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 04:30:39,708 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-19 04:30:39,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:30:39 BoogieIcfgContainer [2020-08-19 04:30:39,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 04:30:39,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 04:30:39,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 04:30:39,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 04:30:39,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 04:30:39" (1/3) ... [2020-08-19 04:30:39,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@269b8bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:30:39, skipping insertion in model container [2020-08-19 04:30:39,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:30:39" (2/3) ... [2020-08-19 04:30:39,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@269b8bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:30:39, skipping insertion in model container [2020-08-19 04:30:39,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:30:39" (3/3) ... [2020-08-19 04:30:39,719 INFO L109 eAbstractionObserver]: Analyzing ICFG trex03-1.c [2020-08-19 04:30:39,730 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 04:30:39,738 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 04:30:39,752 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 04:30:39,775 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 04:30:39,775 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 04:30:39,775 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 04:30:39,775 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 04:30:39,775 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 04:30:39,776 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 04:30:39,776 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 04:30:39,776 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 04:30:39,791 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-08-19 04:30:39,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-08-19 04:30:39,797 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:30:39,798 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:30:39,798 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:30:39,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:30:39,803 INFO L82 PathProgramCache]: Analyzing trace with hash -859010367, now seen corresponding path program 1 times [2020-08-19 04:30:39,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:30:39,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539246717] [2020-08-19 04:30:39,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:30:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:39,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:30:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:30:39,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:30:39,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539246717] [2020-08-19 04:30:39,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:30:39,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-08-19 04:30:39,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872028148] [2020-08-19 04:30:39,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-08-19 04:30:39,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:30:39,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-08-19 04:30:39,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-08-19 04:30:39,936 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-08-19 04:30:39,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:30:39,955 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2020-08-19 04:30:39,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-08-19 04:30:39,956 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-08-19 04:30:39,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:30:39,963 INFO L225 Difference]: With dead ends: 33 [2020-08-19 04:30:39,963 INFO L226 Difference]: Without dead ends: 14 [2020-08-19 04:30:39,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-08-19 04:30:39,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-08-19 04:30:39,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-08-19 04:30:39,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-08-19 04:30:39,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2020-08-19 04:30:39,999 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2020-08-19 04:30:40,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:30:40,000 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2020-08-19 04:30:40,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-08-19 04:30:40,000 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-08-19 04:30:40,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-08-19 04:30:40,001 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:30:40,001 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:30:40,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 04:30:40,002 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:30:40,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:30:40,002 INFO L82 PathProgramCache]: Analyzing trace with hash -873786703, now seen corresponding path program 1 times [2020-08-19 04:30:40,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:30:40,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333665736] [2020-08-19 04:30:40,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:30:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 04:30:40,038 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 04:30:40,038 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 04:30:40,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 04:30:40,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 04:30:40 BoogieIcfgContainer [2020-08-19 04:30:40,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 04:30:40,057 INFO L168 Benchmark]: Toolchain (without parser) took 992.05 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 102.6 MB in the beginning and 145.9 MB in the end (delta: -43.3 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:40,058 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-19 04:30:40,059 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.24 ms. Allocated memory is still 138.9 MB. Free memory was 102.4 MB in the beginning and 92.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:40,060 INFO L168 Benchmark]: Boogie Preprocessor took 124.43 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 92.6 MB in the beginning and 180.5 MB in the end (delta: -87.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:40,061 INFO L168 Benchmark]: RCFGBuilder took 255.55 ms. Allocated memory is still 201.9 MB. Free memory was 180.5 MB in the beginning and 167.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:40,062 INFO L168 Benchmark]: TraceAbstraction took 342.70 ms. Allocated memory is still 201.9 MB. Free memory was 167.4 MB in the beginning and 145.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-08-19 04:30:40,070 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 264.24 ms. Allocated memory is still 138.9 MB. Free memory was 102.4 MB in the beginning and 92.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.43 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 92.6 MB in the beginning and 180.5 MB in the end (delta: -87.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 255.55 ms. Allocated memory is still 201.9 MB. Free memory was 180.5 MB in the beginning and 167.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 342.70 ms. Allocated memory is still 201.9 MB. Free memory was 167.4 MB in the beginning and 145.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L16] unsigned int d1=1, d2=1, d3=1; [L17] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L17] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L19] COND FALSE !(x1>0 && x2>0 && x3>0) [L28] CALL __VERIFIER_assert(x1==0 && x2==0 && x3==0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...