/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 false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 13:25:32,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 13:25:32,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 13:25:32,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 13:25:32,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 13:25:32,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 13:25:32,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 13:25:32,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 13:25:32,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 13:25:32,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 13:25:32,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 13:25:32,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 13:25:32,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 13:25:32,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 13:25:32,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 13:25:32,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 13:25:32,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 13:25:32,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 13:25:32,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 13:25:32,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 13:25:32,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 13:25:32,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 13:25:32,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 13:25:32,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 13:25:32,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 13:25:32,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 13:25:32,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 13:25:32,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 13:25:32,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 13:25:32,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 13:25:32,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 13:25:32,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 13:25:32,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 13:25:32,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 13:25:32,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 13:25:32,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 13:25:32,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 13:25:32,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 13:25:32,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 13:25:32,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 13:25:32,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 13:25:32,671 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 [2020-08-21 13:25:32,715 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 13:25:32,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 13:25:32,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 13:25:32,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 13:25:32,718 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 13:25:32,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 13:25:32,719 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 13:25:32,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 13:25:32,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 13:25:32,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 13:25:32,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 13:25:32,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 13:25:32,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 13:25:32,722 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 13:25:32,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 13:25:32,722 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 13:25:32,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 13:25:32,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 13:25:32,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 13:25:32,723 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 13:25:32,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 13:25:32,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 13:25:32,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 13:25:32,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 13:25:32,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 13:25:32,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 13:25:32,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 13:25:32,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 13:25:32,725 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 13:25:32,725 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 -> false [2020-08-21 13:25:33,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 13:25:33,047 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 13:25:33,053 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 13:25:33,055 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 13:25:33,056 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 13:25:33,056 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2020-08-21 13:25:33,123 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39d73c34f/4e3f62f5353c4da3a5816fe62d7633ca/FLAGc6edaf7d6 [2020-08-21 13:25:33,534 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 13:25:33,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2020-08-21 13:25:33,541 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39d73c34f/4e3f62f5353c4da3a5816fe62d7633ca/FLAGc6edaf7d6 [2020-08-21 13:25:33,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39d73c34f/4e3f62f5353c4da3a5816fe62d7633ca [2020-08-21 13:25:33,918 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 13:25:33,920 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 13:25:33,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 13:25:33,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 13:25:33,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 13:25:33,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:25:33" (1/1) ... [2020-08-21 13:25:33,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d733b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:25:33, skipping insertion in model container [2020-08-21 13:25:33,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:25:33" (1/1) ... [2020-08-21 13:25:33,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 13:25:33,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 13:25:34,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:25:34,143 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 13:25:34,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:25:34,184 INFO L208 MainTranslator]: Completed translation [2020-08-21 13:25:34,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:25:34 WrapperNode [2020-08-21 13:25:34,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 13:25:34,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 13:25:34,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 13:25:34,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 13:25:34,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:25:34" (1/1) ... [2020-08-21 13:25:34,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:25:34" (1/1) ... [2020-08-21 13:25:34,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:25:34" (1/1) ... [2020-08-21 13:25:34,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:25:34" (1/1) ... [2020-08-21 13:25:34,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:25:34" (1/1) ... [2020-08-21 13:25:34,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:25:34" (1/1) ... [2020-08-21 13:25:34,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:25:34" (1/1) ... [2020-08-21 13:25:34,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 13:25:34,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 13:25:34,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 13:25:34,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 13:25:34,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:25:34" (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 [2020-08-21 13:25:34,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 13:25:34,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 13:25:34,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-21 13:25:34,366 INFO L138 BoogieDeclarations]: Found implementation of procedure printEven [2020-08-21 13:25:34,366 INFO L138 BoogieDeclarations]: Found implementation of procedure printOdd [2020-08-21 13:25:34,367 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 13:25:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 13:25:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 13:25:34,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-21 13:25:34,368 INFO L130 BoogieDeclarations]: Found specification of procedure printEven [2020-08-21 13:25:34,368 INFO L130 BoogieDeclarations]: Found specification of procedure printOdd [2020-08-21 13:25:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 13:25:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 13:25:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 13:25:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 13:25:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 13:25:34,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 13:25:34,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 13:25:34,661 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 13:25:34,661 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-08-21 13:25:34,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:25:34 BoogieIcfgContainer [2020-08-21 13:25:34,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 13:25:34,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 13:25:34,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 13:25:34,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 13:25:34,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 01:25:33" (1/3) ... [2020-08-21 13:25:34,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b41aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:25:34, skipping insertion in model container [2020-08-21 13:25:34,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:25:34" (2/3) ... [2020-08-21 13:25:34,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b41aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:25:34, skipping insertion in model container [2020-08-21 13:25:34,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:25:34" (3/3) ... [2020-08-21 13:25:34,674 INFO L109 eAbstractionObserver]: Analyzing ICFG sanfoundry_24-1.i [2020-08-21 13:25:34,687 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 13:25:34,694 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 13:25:34,709 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 13:25:34,733 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 13:25:34,733 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 13:25:34,734 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 13:25:34,734 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 13:25:34,734 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 13:25:34,734 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 13:25:34,734 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 13:25:34,734 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 13:25:34,753 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-08-21 13:25:34,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-21 13:25:34,759 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:25:34,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:25:34,761 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:25:34,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:25:34,767 INFO L82 PathProgramCache]: Analyzing trace with hash -762079996, now seen corresponding path program 1 times [2020-08-21 13:25:34,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:25:34,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638295208] [2020-08-21 13:25:34,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:25:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:25:34,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:25:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:25:35,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:25:35,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638295208] [2020-08-21 13:25:35,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:25:35,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 13:25:35,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091964108] [2020-08-21 13:25:35,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 13:25:35,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:25:35,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 13:25:35,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 13:25:35,033 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 6 states. [2020-08-21 13:25:35,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:25:35,307 INFO L93 Difference]: Finished difference Result 89 states and 125 transitions. [2020-08-21 13:25:35,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 13:25:35,309 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-08-21 13:25:35,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:25:35,319 INFO L225 Difference]: With dead ends: 89 [2020-08-21 13:25:35,320 INFO L226 Difference]: Without dead ends: 46 [2020-08-21 13:25:35,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 13:25:35,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-08-21 13:25:35,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2020-08-21 13:25:35,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-08-21 13:25:35,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2020-08-21 13:25:35,368 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 16 [2020-08-21 13:25:35,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:25:35,369 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2020-08-21 13:25:35,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 13:25:35,369 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2020-08-21 13:25:35,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-21 13:25:35,370 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:25:35,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:25:35,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 13:25:35,371 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:25:35,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:25:35,371 INFO L82 PathProgramCache]: Analyzing trace with hash 204295910, now seen corresponding path program 1 times [2020-08-21 13:25:35,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:25:35,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1132995647] [2020-08-21 13:25:35,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:25:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:25:35,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:25:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:25:35,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 13:25:35,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1132995647] [2020-08-21 13:25:35,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:25:35,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 13:25:35,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5101355] [2020-08-21 13:25:35,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 13:25:35,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:25:35,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 13:25:35,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-08-21 13:25:35,614 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 9 states. [2020-08-21 13:25:35,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:25:35,904 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2020-08-21 13:25:35,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 13:25:35,904 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-08-21 13:25:35,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:25:35,906 INFO L225 Difference]: With dead ends: 42 [2020-08-21 13:25:35,906 INFO L226 Difference]: Without dead ends: 40 [2020-08-21 13:25:35,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-08-21 13:25:35,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-08-21 13:25:35,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-08-21 13:25:35,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-08-21 13:25:35,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-08-21 13:25:35,917 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 18 [2020-08-21 13:25:35,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:25:35,917 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-08-21 13:25:35,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 13:25:35,918 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-08-21 13:25:35,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-21 13:25:35,919 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:25:35,919 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:25:35,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 13:25:35,920 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:25:35,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:25:35,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1004823058, now seen corresponding path program 1 times [2020-08-21 13:25:35,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:25:35,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638046476] [2020-08-21 13:25:35,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:25:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:25:36,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:25:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:25:36,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-21 13:25:36,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638046476] [2020-08-21 13:25:36,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:25:36,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 13:25:36,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561929004] [2020-08-21 13:25:36,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 13:25:36,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:25:36,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 13:25:36,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-08-21 13:25:36,137 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 9 states. [2020-08-21 13:25:36,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:25:36,410 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2020-08-21 13:25:36,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 13:25:36,411 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-08-21 13:25:36,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:25:36,413 INFO L225 Difference]: With dead ends: 40 [2020-08-21 13:25:36,413 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 13:25:36,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-08-21 13:25:36,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 13:25:36,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 13:25:36,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 13:25:36,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 13:25:36,417 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2020-08-21 13:25:36,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:25:36,417 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 13:25:36,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 13:25:36,417 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 13:25:36,418 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 13:25:36,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 13:25:36,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 13:25:36,551 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 13:25:36,552 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-08-21 13:25:36,552 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 13:25:36,552 INFO L271 CegarLoopResult]: At program point printOddENTRY(lines 7 9) the Hoare annotation is: true [2020-08-21 13:25:36,552 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) (not (= printOdd_~i (* (div printOdd_~i 2) 2)))) [2020-08-21 13:25:36,553 INFO L268 CegarLoopResult]: For program point printOddFINAL(lines 7 9) no Hoare annotation was computed. [2020-08-21 13:25:36,553 INFO L268 CegarLoopResult]: For program point printOddEXIT(lines 7 9) no Hoare annotation was computed. [2020-08-21 13:25:36,553 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 13:25:36,553 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-21 13:25:36,553 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 13:25:36,553 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 13:25:36,553 INFO L268 CegarLoopResult]: For program point printEvenEXIT(lines 4 6) no Hoare annotation was computed. [2020-08-21 13:25:36,553 INFO L271 CegarLoopResult]: At program point printEvenENTRY(lines 4 6) the Hoare annotation is: true [2020-08-21 13:25:36,554 INFO L268 CegarLoopResult]: For program point printEvenFINAL(lines 4 6) no Hoare annotation was computed. [2020-08-21 13:25:36,554 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (or (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2)))) (<= printEven_~i (* 2 (div printEven_~i 2)))) [2020-08-21 13:25:36,554 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 10 36) no Hoare annotation was computed. [2020-08-21 13:25:36,554 INFO L268 CegarLoopResult]: For program point L23(lines 23 26) no Hoare annotation was computed. [2020-08-21 13:25:36,555 INFO L264 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (let ((.cse0 (+ |main_#t~mem8| 1))) (<= .cse0 (* 2 (div .cse0 2)))) [2020-08-21 13:25:36,556 INFO L268 CegarLoopResult]: For program point L32-1(line 32) no Hoare annotation was computed. [2020-08-21 13:25:36,556 INFO L268 CegarLoopResult]: For program point L28-2(lines 28 34) no Hoare annotation was computed. [2020-08-21 13:25:36,556 INFO L271 CegarLoopResult]: At program point L28-3(lines 28 34) the Hoare annotation is: true [2020-08-21 13:25:36,556 INFO L268 CegarLoopResult]: For program point L28-4(lines 28 34) no Hoare annotation was computed. [2020-08-21 13:25:36,556 INFO L268 CegarLoopResult]: For program point L16-2(lines 16 19) no Hoare annotation was computed. [2020-08-21 13:25:36,557 INFO L271 CegarLoopResult]: At program point L16-3(lines 16 19) the Hoare annotation is: true [2020-08-21 13:25:36,557 INFO L268 CegarLoopResult]: For program point L16-4(lines 16 19) no Hoare annotation was computed. [2020-08-21 13:25:36,557 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (<= |main_#t~mem5| (* 2 (div |main_#t~mem5| 2))) [2020-08-21 13:25:36,557 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-08-21 13:25:36,557 INFO L268 CegarLoopResult]: For program point L21-2(lines 21 27) no Hoare annotation was computed. [2020-08-21 13:25:36,557 INFO L271 CegarLoopResult]: At program point L21-3(lines 21 27) the Hoare annotation is: true [2020-08-21 13:25:36,557 INFO L268 CegarLoopResult]: For program point L21-4(lines 21 27) no Hoare annotation was computed. [2020-08-21 13:25:36,558 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 10 36) no Hoare annotation was computed. [2020-08-21 13:25:36,558 INFO L268 CegarLoopResult]: For program point L30(lines 30 33) no Hoare annotation was computed. [2020-08-21 13:25:36,559 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 10 36) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-08-21 13:25:36,559 INFO L268 CegarLoopResult]: For program point L3-3(line 3) no Hoare annotation was computed. [2020-08-21 13:25:36,559 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2020-08-21 13:25:36,559 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2020-08-21 13:25:36,559 INFO L268 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-08-21 13:25:36,560 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-08-21 13:25:36,560 INFO L268 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-08-21 13:25:36,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 01:25:36 BoogieIcfgContainer [2020-08-21 13:25:36,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 13:25:36,579 INFO L168 Benchmark]: Toolchain (without parser) took 2655.80 ms. Allocated memory was 141.0 MB in the beginning and 233.8 MB in the end (delta: 92.8 MB). Free memory was 103.6 MB in the beginning and 120.3 MB in the end (delta: -16.7 MB). Peak memory consumption was 76.1 MB. Max. memory is 7.1 GB. [2020-08-21 13:25:36,581 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 13:25:36,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.08 ms. Allocated memory is still 141.0 MB. Free memory was 103.2 MB in the beginning and 93.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-08-21 13:25:36,583 INFO L168 Benchmark]: Boogie Preprocessor took 111.49 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 93.3 MB in the beginning and 182.2 MB in the end (delta: -88.9 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-08-21 13:25:36,584 INFO L168 Benchmark]: RCFGBuilder took 369.22 ms. Allocated memory is still 204.5 MB. Free memory was 182.2 MB in the beginning and 164.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2020-08-21 13:25:36,585 INFO L168 Benchmark]: TraceAbstraction took 1906.55 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 164.3 MB in the beginning and 120.3 MB in the end (delta: 44.0 MB). Peak memory consumption was 73.4 MB. Max. memory is 7.1 GB. [2020-08-21 13:25:36,596 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 264.08 ms. Allocated memory is still 141.0 MB. Free memory was 103.2 MB in the beginning and 93.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.49 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 93.3 MB in the beginning and 182.2 MB in the end (delta: -88.9 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 369.22 ms. Allocated memory is still 204.5 MB. Free memory was 182.2 MB in the beginning and 164.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1906.55 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 164.3 MB in the beginning and 120.3 MB in the end (delta: 44.0 MB). Peak memory consumption was 73.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 63 SDslu, 294 SDs, 0 SdLazy, 343 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=2, 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, 3 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 21 PreInvPairs, 29 NumberOfFragments, 76 HoareAnnotationTreeSize, 21 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 120 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 3311 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 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 correct! Received shutdown request...