/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 --rcfgbuilder.size.of.a.code.block SingleStatement --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 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-c90d42b [2020-09-24 17:22:59,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:22:59,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:22:59,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:22:59,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:22:59,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:22:59,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:22:59,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:22:59,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:22:59,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:22:59,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:22:59,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:22:59,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:22:59,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:22:59,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:22:59,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:22:59,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:22:59,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:22:59,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:22:59,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:22:59,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:22:59,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:22:59,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:22:59,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:22:59,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:22:59,516 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:22:59,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:22:59,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:22:59,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:22:59,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:22:59,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:22:59,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:22:59,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:22:59,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:22:59,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:22:59,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:22:59,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:22:59,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:22:59,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:22:59,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:22:59,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:22:59,533 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 [2020-09-24 17:22:59,586 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:22:59,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:22:59,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:22:59,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:22:59,589 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:22:59,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:22:59,589 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:22:59,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:22:59,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:22:59,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:22:59,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:22:59,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:22:59,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:22:59,592 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:22:59,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:22:59,592 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:22:59,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:22:59,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:22:59,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:22:59,593 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:22:59,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:22:59,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:22:59,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:22:59,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:22:59,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:22:59,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:22:59,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:22:59,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:22:59,594 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:22:59,595 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.rcfgbuilder: Size of a code block -> SingleStatement 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;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;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;log-additional-information=true; [2020-09-24 17:23:00,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:23:00,082 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:23:00,086 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:23:00,087 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:23:00,088 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:23:00,089 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/bin-suffix-5.c [2020-09-24 17:23:00,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d237d4ea8/650628b723ec4e51a82f684c1d91faf0/FLAG69c8d85d6 [2020-09-24 17:23:00,705 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:23:00,706 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invariants/bin-suffix-5.c [2020-09-24 17:23:00,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d237d4ea8/650628b723ec4e51a82f684c1d91faf0/FLAG69c8d85d6 [2020-09-24 17:23:01,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d237d4ea8/650628b723ec4e51a82f684c1d91faf0 [2020-09-24 17:23:01,056 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:23:01,062 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:23:01,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:23:01,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:23:01,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:23:01,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:23:01" (1/1) ... [2020-09-24 17:23:01,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c489c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:01, skipping insertion in model container [2020-09-24 17:23:01,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:23:01" (1/1) ... [2020-09-24 17:23:01,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:23:01,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:23:01,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:23:01,313 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:23:01,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:23:01,349 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:23:01,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:01 WrapperNode [2020-09-24 17:23:01,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:23:01,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:23:01,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:23:01,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:23:01,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:01" (1/1) ... [2020-09-24 17:23:01,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:01" (1/1) ... [2020-09-24 17:23:01,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:01" (1/1) ... [2020-09-24 17:23:01,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:01" (1/1) ... [2020-09-24 17:23:01,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:01" (1/1) ... [2020-09-24 17:23:01,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:01" (1/1) ... [2020-09-24 17:23:01,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:01" (1/1) ... [2020-09-24 17:23:01,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:23:01,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:23:01,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:23:01,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:23:01,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:01" (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 [2020-09-24 17:23:01,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:23:01,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:23:01,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 17:23:01,542 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:23:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:23:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:23:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 17:23:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:23:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:23:01,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:23:01,738 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:23:01,738 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 17:23:01,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:23:01 BoogieIcfgContainer [2020-09-24 17:23:01,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:23:01,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:23:01,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:23:01,748 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:23:01,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:23:01" (1/3) ... [2020-09-24 17:23:01,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f17c3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:23:01, skipping insertion in model container [2020-09-24 17:23:01,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:01" (2/3) ... [2020-09-24 17:23:01,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f17c3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:23:01, skipping insertion in model container [2020-09-24 17:23:01,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:23:01" (3/3) ... [2020-09-24 17:23:01,752 INFO L109 eAbstractionObserver]: Analyzing ICFG bin-suffix-5.c [2020-09-24 17:23:01,764 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:23:01,773 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:23:01,794 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:23:01,820 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:23:01,820 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:23:01,821 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:23:01,821 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:23:01,821 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:23:01,821 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:23:01,821 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:23:01,822 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:23:01,841 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-09-24 17:23:01,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-24 17:23:01,848 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:23:01,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:23:01,849 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:23:01,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:23:01,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1137787585, now seen corresponding path program 1 times [2020-09-24 17:23:01,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:23:01,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580823557] [2020-09-24 17:23:01,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:23:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:23:01,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:23:02,019 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:23:02,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 17:23:02,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:23:02,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 17:23:02,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:23:02,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:23:02,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 17:23:02,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:23:02,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 17:23:02,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:23:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:23:02,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:23:02,055 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:23:02,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:23:02,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:23:02,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:23:02,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:23:02,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:23:02,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:23:02,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:23:02,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:23:02,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:23:02,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580823557] [2020-09-24 17:23:02,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:23:02,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-24 17:23:02,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818826212] [2020-09-24 17:23:02,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-24 17:23:02,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:23:02,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-24 17:23:02,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-24 17:23:02,094 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-09-24 17:23:02,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:23:02,122 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2020-09-24 17:23:02,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-24 17:23:02,124 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-24 17:23:02,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:23:02,134 INFO L225 Difference]: With dead ends: 34 [2020-09-24 17:23:02,134 INFO L226 Difference]: Without dead ends: 15 [2020-09-24 17:23:02,138 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 [2020-09-24 17:23:02,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-09-24 17:23:02,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-09-24 17:23:02,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-09-24 17:23:02,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-09-24 17:23:02,176 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2020-09-24 17:23:02,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:23:02,176 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-09-24 17:23:02,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-24 17:23:02,177 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-09-24 17:23:02,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-24 17:23:02,177 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:23:02,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:23:02,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:23:02,178 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:23:02,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:23:02,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1424281528, now seen corresponding path program 1 times [2020-09-24 17:23:02,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:23:02,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411131238] [2020-09-24 17:23:02,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:23:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 17:23:02,194 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 17:23:02,194 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 17:23:02,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:23:02,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:23:02 BoogieIcfgContainer [2020-09-24 17:23:02,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 17:23:02,221 INFO L168 Benchmark]: Toolchain (without parser) took 1161.91 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 102.6 MB in the beginning and 143.9 MB in the end (delta: -41.3 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-09-24 17:23:02,222 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-24 17:23:02,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.34 ms. Allocated memory is still 138.9 MB. Free memory was 101.9 MB in the beginning and 92.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-24 17:23:02,224 INFO L168 Benchmark]: Boogie Preprocessor took 108.55 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 92.2 MB in the beginning and 181.2 MB in the end (delta: -89.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-09-24 17:23:02,225 INFO L168 Benchmark]: RCFGBuilder took 282.93 ms. Allocated memory is still 201.3 MB. Free memory was 181.2 MB in the beginning and 168.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-09-24 17:23:02,226 INFO L168 Benchmark]: TraceAbstraction took 473.27 ms. Allocated memory is still 201.3 MB. Free memory was 167.7 MB in the beginning and 143.9 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-09-24 17:23:02,230 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 287.34 ms. Allocated memory is still 138.9 MB. Free memory was 101.9 MB in the beginning and 92.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.55 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 92.2 MB in the beginning and 181.2 MB in the end (delta: -89.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 282.93 ms. Allocated memory is still 201.3 MB. Free memory was 181.2 MB in the beginning and 168.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 473.27 ms. Allocated memory is still 201.3 MB. Free memory was 167.7 MB in the beginning and 143.9 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 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, 22 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: 22 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=22occurred 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, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 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...