/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 produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invariants/bin-suffix-5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:32:59,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:32:59,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:32:59,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:32:59,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:32:59,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:32:59,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:32:59,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:32:59,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:32:59,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:32:59,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:32:59,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:32:59,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:32:59,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:32:59,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:32:59,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:32:59,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:32:59,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:32:59,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:32:59,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:32:59,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:32:59,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:32:59,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:32:59,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:32:59,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:32:59,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:32:59,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:32:59,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:32:59,653 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:32:59,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:32:59,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:32:59,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:32:59,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:32:59,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:32:59,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:32:59,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:32:59,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:32:59,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:32:59,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:32:59,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:32:59,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:32:59,661 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:32:59,685 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:32:59,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:32:59,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:32:59,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:32:59,687 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:32:59,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:32:59,688 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:32:59,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:32:59,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:32:59,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:32:59,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:32:59,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:32:59,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:32:59,689 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:32:59,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:32:59,689 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:32:59,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:32:59,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:32:59,690 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:32:59,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:32:59,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:32:59,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:32:59,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:32:59,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:32:59,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:32:59,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:32:59,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:32:59,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:32:59,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:32:59,692 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 -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:33:00,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:33:00,144 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:33:00,152 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:33:00,156 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:33:00,157 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:33:00,158 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/bin-suffix-5.c [2020-09-21 11:33:00,249 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76edd81db/de7dde97b2774de2b7379451f37ed357/FLAG3b684a642 [2020-09-21 11:33:00,787 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:33:00,788 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invariants/bin-suffix-5.c [2020-09-21 11:33:00,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76edd81db/de7dde97b2774de2b7379451f37ed357/FLAG3b684a642 [2020-09-21 11:33:01,133 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76edd81db/de7dde97b2774de2b7379451f37ed357 [2020-09-21 11:33:01,146 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:33:01,152 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:33:01,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:33:01,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:33:01,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:33:01,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:33:01" (1/1) ... [2020-09-21 11:33:01,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4df7be5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:01, skipping insertion in model container [2020-09-21 11:33:01,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:33:01" (1/1) ... [2020-09-21 11:33:01,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:33:01,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:33:01,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:33:01,406 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:33:01,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:33:01,441 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:33:01,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:01 WrapperNode [2020-09-21 11:33:01,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:33:01,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:33:01,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:33:01,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:33:01,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:01" (1/1) ... [2020-09-21 11:33:01,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:01" (1/1) ... [2020-09-21 11:33:01,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:01" (1/1) ... [2020-09-21 11:33:01,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:01" (1/1) ... [2020-09-21 11:33:01,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:01" (1/1) ... [2020-09-21 11:33:01,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:01" (1/1) ... [2020-09-21 11:33:01,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:01" (1/1) ... [2020-09-21 11:33:01,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:33:01,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:33:01,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:33:01,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:33:01,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:33:01,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:33:01,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:33:01,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-21 11:33:01,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:33:01,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:33:01,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:33:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-21 11:33:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:33:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:33:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:33:01,830 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:33:01,830 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:33:01,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:33:01 BoogieIcfgContainer [2020-09-21 11:33:01,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:33:01,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:33:01,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:33:01,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:33:01,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:33:01" (1/3) ... [2020-09-21 11:33:01,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3d29d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:33:01, skipping insertion in model container [2020-09-21 11:33:01,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:01" (2/3) ... [2020-09-21 11:33:01,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3d29d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:33:01, skipping insertion in model container [2020-09-21 11:33:01,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:33:01" (3/3) ... [2020-09-21 11:33:01,844 INFO L109 eAbstractionObserver]: Analyzing ICFG bin-suffix-5.c [2020-09-21 11:33:01,856 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:33:01,866 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:33:01,890 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:33:01,920 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:33:01,920 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:33:01,921 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:33:01,921 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:33:01,921 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:33:01,921 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:33:01,921 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:33:01,921 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:33:01,940 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-09-21 11:33:01,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-21 11:33:01,947 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:01,948 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:01,949 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:01,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:01,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times [2020-09-21 11:33:01,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:01,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814681210] [2020-09-21 11:33:01,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:02,076 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:02,077 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:02,077 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:02,077 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:02,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:33:02,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:02,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:33:02,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:02,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:02,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:33:02,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:02,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:02,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:02,110 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:02,111 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:02,111 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:02,111 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:02,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:02,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:02,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:02,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:02,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:02,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:02,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:02,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:02,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:02,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814681210] [2020-09-21 11:33:02,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:02,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-21 11:33:02,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727224759] [2020-09-21 11:33:02,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-21 11:33:02,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:02,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-21 11:33:02,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-21 11:33:02,148 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-09-21 11:33:02,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:02,171 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2020-09-21 11:33:02,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-21 11:33:02,173 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-21 11:33:02,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:02,182 INFO L225 Difference]: With dead ends: 31 [2020-09-21 11:33:02,182 INFO L226 Difference]: Without dead ends: 12 [2020-09-21 11:33:02,186 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 [2020-09-21 11:33:02,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-09-21 11:33:02,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-09-21 11:33:02,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-09-21 11:33:02,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-09-21 11:33:02,234 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2020-09-21 11:33:02,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:02,235 INFO L479 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-09-21 11:33:02,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-21 11:33:02,235 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-09-21 11:33:02,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-21 11:33:02,236 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:02,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:02,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:33:02,237 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:02,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:02,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1890620952, now seen corresponding path program 1 times [2020-09-21 11:33:02,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:02,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2011671051] [2020-09-21 11:33:02,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:33:02,272 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:33:02,272 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:33:02,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:33:02,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:33:02 BoogieIcfgContainer [2020-09-21 11:33:02,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:33:02,300 INFO L168 Benchmark]: Toolchain (without parser) took 1151.40 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 104.4 MB in the beginning and 147.4 MB in the end (delta: -43.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:33:02,301 INFO L168 Benchmark]: CDTParser took 2.02 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:33:02,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.05 ms. Allocated memory is still 140.5 MB. Free memory was 103.7 MB in the beginning and 94.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:33:02,304 INFO L168 Benchmark]: Boogie Preprocessor took 108.94 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 94.3 MB in the beginning and 183.9 MB in the end (delta: -89.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:33:02,305 INFO L168 Benchmark]: RCFGBuilder took 282.97 ms. Allocated memory is still 203.9 MB. Free memory was 183.9 MB in the beginning and 171.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:33:02,306 INFO L168 Benchmark]: TraceAbstraction took 461.10 ms. Allocated memory is still 203.9 MB. Free memory was 170.9 MB in the beginning and 147.4 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:33:02,310 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.02 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 289.05 ms. Allocated memory is still 140.5 MB. Free memory was 103.7 MB in the beginning and 94.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.94 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 94.3 MB in the beginning and 183.9 MB in the end (delta: -89.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 282.97 ms. Allocated memory is still 203.9 MB. Free memory was 183.9 MB in the beginning and 171.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 461.10 ms. Allocated memory is still 203.9 MB. Free memory was 170.9 MB in the beginning and 147.4 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 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: overapproximation of bitwiseAnd at line 14. Possible FailurePath: [L10] unsigned int x = 5; [L11] COND FALSE !(__VERIFIER_nondet_int()) [L14] CALL __VERIFIER_assert((x & 5) == 5) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 19 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=19occurred 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, 21 NumberOfCodeBlocks, 21 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...