/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 19:46:04,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:46:04,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:46:04,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 19:46:04,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 19:46:04,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 19:46:04,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 19:46:04,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 19:46:04,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 19:46:04,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 19:46:04,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 19:46:04,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 19:46:04,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:46:04,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:46:04,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:46:04,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:46:04,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:46:04,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:46:04,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:46:04,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:46:04,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:46:04,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:46:04,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:46:04,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:46:04,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 19:46:04,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:46:04,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:46:04,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:46:04,702 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 19:46:04,721 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:46:04,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:46:04,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:46:04,723 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:46:04,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:46:04,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:46:04,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:46:04,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:46:04,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:46:04,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:46:04,727 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:46:04,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:46:04,727 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:46:04,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:46:04,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:46:04,728 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:46:04,728 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:46:04,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:46:04,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:46:04,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:46:04,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:46:04,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:46:04,729 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:46:04,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:46:05,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:46:05,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:46:05,011 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:46:05,011 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:46:05,012 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-08-22 19:46:05,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e74a59c1/ef19bbce4e794881baa8435a06891d33/FLAGe3cec2442 [2020-08-22 19:46:05,535 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:46:05,536 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-08-22 19:46:05,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e74a59c1/ef19bbce4e794881baa8435a06891d33/FLAGe3cec2442 [2020-08-22 19:46:05,932 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e74a59c1/ef19bbce4e794881baa8435a06891d33 [2020-08-22 19:46:05,941 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:46:05,943 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:46:05,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:46:05,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:46:05,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:46:05,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:46:05" (1/1) ... [2020-08-22 19:46:05,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20abf48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:05, skipping insertion in model container [2020-08-22 19:46:05,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:46:05" (1/1) ... [2020-08-22 19:46:05,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:46:05,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:46:06,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:46:06,159 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:46:06,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:46:06,194 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:46:06,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06 WrapperNode [2020-08-22 19:46:06,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:46:06,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:46:06,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:46:06,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:46:06,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (1/1) ... [2020-08-22 19:46:06,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (1/1) ... [2020-08-22 19:46:06,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (1/1) ... [2020-08-22 19:46:06,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (1/1) ... [2020-08-22 19:46:06,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (1/1) ... [2020-08-22 19:46:06,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (1/1) ... [2020-08-22 19:46:06,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (1/1) ... [2020-08-22 19:46:06,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:46:06,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:46:06,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:46:06,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:46:06,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-08-22 19:46:06,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:46:06,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:46:06,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 19:46:06,386 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2020-08-22 19:46:06,386 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:46:06,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:46:06,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 19:46:06,386 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2020-08-22 19:46:06,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 19:46:06,387 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:46:06,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 19:46:06,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 19:46:06,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:46:06,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:46:06,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 19:46:06,661 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:46:06,662 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 19:46:06,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:46:06 BoogieIcfgContainer [2020-08-22 19:46:06,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:46:06,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:46:06,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:46:06,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:46:06,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:46:05" (1/3) ... [2020-08-22 19:46:06,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c1c55f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:46:06, skipping insertion in model container [2020-08-22 19:46:06,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (2/3) ... [2020-08-22 19:46:06,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c1c55f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:46:06, skipping insertion in model container [2020-08-22 19:46:06,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:46:06" (3/3) ... [2020-08-22 19:46:06,685 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2020-08-22 19:46:06,694 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:46:06,700 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 19:46:06,713 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 19:46:06,732 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:46:06,732 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:46:06,732 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:46:06,732 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:46:06,732 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:46:06,732 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:46:06,733 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:46:06,733 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:46:06,747 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-08-22 19:46:06,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-22 19:46:06,756 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:46:06,757 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] [2020-08-22 19:46:06,757 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:46:06,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:46:06,763 INFO L82 PathProgramCache]: Analyzing trace with hash -331406787, now seen corresponding path program 1 times [2020-08-22 19:46:06,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:46:06,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511930815] [2020-08-22 19:46:06,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:46:06,835 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:46:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:46:07,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:46:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:46:07,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:46:07,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511930815] [2020-08-22 19:46:07,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:46:07,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 19:46:07,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386814859] [2020-08-22 19:46:07,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 19:46:07,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:46:07,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 19:46:07,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-22 19:46:07,350 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 10 states. [2020-08-22 19:46:07,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:46:07,886 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2020-08-22 19:46:07,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 19:46:07,888 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2020-08-22 19:46:07,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:46:07,897 INFO L225 Difference]: With dead ends: 76 [2020-08-22 19:46:07,897 INFO L226 Difference]: Without dead ends: 37 [2020-08-22 19:46:07,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2020-08-22 19:46:07,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-08-22 19:46:07,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2020-08-22 19:46:07,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-08-22 19:46:07,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2020-08-22 19:46:07,950 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 21 [2020-08-22 19:46:07,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:46:07,951 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2020-08-22 19:46:07,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 19:46:07,951 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2020-08-22 19:46:07,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-22 19:46:07,952 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:46:07,953 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:46:07,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:46:07,953 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:46:07,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:46:07,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1840112204, now seen corresponding path program 1 times [2020-08-22 19:46:07,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:46:07,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1210150391] [2020-08-22 19:46:07,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:46:07,988 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:46:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:46:08,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:46:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:46:08,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-08-22 19:46:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:46:08,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:46:08,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1210150391] [2020-08-22 19:46:08,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:46:08,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 19:46:08,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673842383] [2020-08-22 19:46:08,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 19:46:08,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:46:08,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 19:46:08,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-22 19:46:08,220 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 12 states. [2020-08-22 19:46:08,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:46:08,647 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2020-08-22 19:46:08,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 19:46:08,648 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2020-08-22 19:46:08,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:46:08,650 INFO L225 Difference]: With dead ends: 49 [2020-08-22 19:46:08,650 INFO L226 Difference]: Without dead ends: 47 [2020-08-22 19:46:08,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2020-08-22 19:46:08,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-08-22 19:46:08,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2020-08-22 19:46:08,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-22 19:46:08,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2020-08-22 19:46:08,667 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 31 [2020-08-22 19:46:08,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:46:08,668 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2020-08-22 19:46:08,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 19:46:08,668 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2020-08-22 19:46:08,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-08-22 19:46:08,670 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:46:08,670 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:46:08,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 19:46:08,670 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:46:08,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:46:08,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1122821221, now seen corresponding path program 2 times [2020-08-22 19:46:08,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:46:08,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687599574] [2020-08-22 19:46:08,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:46:08,678 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:46:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:46:08,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:46:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:46:08,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-08-22 19:46:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:46:08,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-22 19:46:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:46:08,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:46:08,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [687599574] [2020-08-22 19:46:08,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:46:08,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-08-22 19:46:08,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342973927] [2020-08-22 19:46:08,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-22 19:46:08,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:46:08,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-22 19:46:08,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-08-22 19:46:08,896 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 13 states. [2020-08-22 19:46:09,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:46:09,309 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2020-08-22 19:46:09,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 19:46:09,310 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 41 [2020-08-22 19:46:09,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:46:09,311 INFO L225 Difference]: With dead ends: 49 [2020-08-22 19:46:09,311 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 19:46:09,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2020-08-22 19:46:09,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 19:46:09,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 19:46:09,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 19:46:09,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 19:46:09,314 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2020-08-22 19:46:09,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:46:09,314 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 19:46:09,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-22 19:46:09,315 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 19:46:09,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 19:46:09,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 19:46:09,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 19:46:09,931 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 33 [2020-08-22 19:46:10,466 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2020-08-22 19:46:10,471 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 19:46:10,471 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-08-22 19:46:10,472 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 19:46:10,472 INFO L271 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-08-22 19:46:10,472 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~tmp~0.base |old(~tmp~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |old(#valid)| |#valid|)) [2020-08-22 19:46:10,472 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:46:10,473 INFO L271 CegarLoopResult]: At program point glob2ENTRY(lines 14 25) the Hoare annotation is: true [2020-08-22 19:46:10,473 INFO L264 CegarLoopResult]: At program point L21(lines 18 22) the Hoare annotation is: (let ((.cse0 (= glob2_~pathbuf.offset 0)) (.cse1 (<= glob2_~pathlim.offset 4)) (.cse2 (= ~tmp~0.base glob2_~pathbuf.base))) (or (and .cse0 .cse1 .cse2 (<= glob2_~pathlim.offset glob2_~p~0.offset)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (<= |glob2_#in~pathlim.offset| 4)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset)) (and .cse0 (= glob2_~p~0.offset 0) (= ~tmp~0.base glob2_~p~0.base) .cse1 .cse2))) [2020-08-22 19:46:10,473 INFO L264 CegarLoopResult]: At program point glob2EXIT(lines 14 25) the Hoare annotation is: (or (and (= glob2_~pathbuf.offset 0) (= ~tmp~0.base glob2_~pathbuf.base)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (<= |glob2_#in~pathlim.offset| 4)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset))) [2020-08-22 19:46:10,474 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (let ((.cse0 (= glob2_~pathbuf.offset 0)) (.cse1 (= ~tmp~0.base glob2_~p~0.base)) (.cse2 (<= glob2_~pathlim.offset 4)) (.cse3 (= ~tmp~0.base glob2_~pathbuf.base))) (or (and .cse0 (<= glob2_~p~0.offset ~tmp~0.offset) .cse1 .cse2 (<= glob2_~pathlim.offset glob2_~p~0.offset) .cse3) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (<= |glob2_#in~pathlim.offset| 4)) (not (= |glob2_#in~pathbuf.offset| 0)) (and .cse0 (= glob2_~p~0.offset 0) .cse1 .cse2 .cse3) (not (<= 4 ~tmp~0.offset)))) [2020-08-22 19:46:10,474 INFO L264 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: (let ((.cse0 (= glob2_~pathbuf.offset 0)) (.cse1 (<= glob2_~pathlim.offset 4)) (.cse2 (= ~tmp~0.base glob2_~pathbuf.base))) (or (and .cse0 .cse1 .cse2 (<= glob2_~pathlim.offset glob2_~p~0.offset)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (<= |glob2_#in~pathlim.offset| 4)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset)) (and .cse0 (= glob2_~p~0.offset 0) (= ~tmp~0.base glob2_~p~0.base) .cse1 .cse2))) [2020-08-22 19:46:10,474 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (or (and (= glob2_~pathbuf.offset 0) (<= glob2_~pathlim.offset 4) (= ~tmp~0.base glob2_~pathbuf.base)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (<= |glob2_#in~pathlim.offset| 4)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset))) [2020-08-22 19:46:10,475 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (or (and (= glob2_~pathbuf.offset 0) (<= glob2_~pathlim.offset 4) (= ~tmp~0.base glob2_~pathbuf.base)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (<= |glob2_#in~pathlim.offset| 4)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset))) [2020-08-22 19:46:10,475 INFO L264 CegarLoopResult]: At program point L18-3(line 18) the Hoare annotation is: (let ((.cse0 (= glob2_~pathbuf.offset 0)) (.cse1 (<= glob2_~pathlim.offset 4)) (.cse2 (= ~tmp~0.base glob2_~pathbuf.base))) (or (and .cse0 (<= glob2_~pathlim.offset |glob2_#t~post0.offset|) .cse1 .cse2 (<= glob2_~pathlim.offset glob2_~p~0.offset)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (<= |glob2_#in~pathlim.offset| 4)) (not (= |glob2_#in~pathbuf.offset| 0)) (and .cse0 (= glob2_~p~0.offset 0) (= |glob2_#t~post0.offset| 0) (= ~tmp~0.base glob2_~p~0.base) (= |glob2_#t~post0.base| ~tmp~0.base) .cse1 .cse2) (not (<= 4 ~tmp~0.offset)))) [2020-08-22 19:46:10,475 INFO L264 CegarLoopResult]: At program point L14(lines 14 25) the Hoare annotation is: (or (and (= glob2_~pathbuf.offset 0) (= ~tmp~0.base glob2_~pathbuf.base)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (<= |glob2_#in~pathlim.offset| 4)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset))) [2020-08-22 19:46:10,476 INFO L264 CegarLoopResult]: At program point L18-4(line 18) the Hoare annotation is: (let ((.cse0 (= glob2_~pathbuf.offset 0)) (.cse1 (<= glob2_~pathlim.offset 4)) (.cse2 (= ~tmp~0.base glob2_~pathbuf.base))) (or (and .cse0 (<= glob2_~p~0.offset ~tmp~0.offset) (= |glob2_#t~post0.offset| 0) (= ~tmp~0.base glob2_~p~0.base) (= |glob2_#t~post0.base| ~tmp~0.base) .cse1 (<= glob2_~pathlim.offset glob2_~p~0.offset) .cse2) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (<= |glob2_#in~pathlim.offset| 4)) (not (= |glob2_#in~pathbuf.offset| 0)) (and .cse0 (<= glob2_~pathlim.offset |glob2_#t~post0.offset|) (<= (+ glob2_~pathlim.offset 4) glob2_~p~0.offset) .cse1 .cse2) (not (<= 4 ~tmp~0.offset)))) [2020-08-22 19:46:10,476 INFO L264 CegarLoopResult]: At program point L18-5(lines 18 22) the Hoare annotation is: (let ((.cse0 (= glob2_~pathbuf.offset 0)) (.cse1 (= ~tmp~0.base glob2_~p~0.base)) (.cse2 (<= glob2_~pathlim.offset 4)) (.cse3 (= ~tmp~0.base glob2_~pathbuf.base))) (or (and .cse0 (<= glob2_~p~0.offset ~tmp~0.offset) .cse1 .cse2 (<= glob2_~pathlim.offset glob2_~p~0.offset) .cse3) (and .cse0 (<= (+ glob2_~pathlim.offset 4) glob2_~p~0.offset) .cse2 .cse3) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (<= |glob2_#in~pathlim.offset| 4)) (not (= |glob2_#in~pathbuf.offset| 0)) (and .cse0 (= glob2_~p~0.offset 0) .cse1 .cse2 .cse3) (not (<= 4 ~tmp~0.offset)))) [2020-08-22 19:46:10,476 INFO L264 CegarLoopResult]: At program point L18-6(lines 18 22) the Hoare annotation is: (or (and (= glob2_~pathbuf.offset 0) (= ~tmp~0.base glob2_~pathbuf.base)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (<= |glob2_#in~pathlim.offset| 4)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset))) [2020-08-22 19:46:10,477 INFO L264 CegarLoopResult]: At program point glob2FINAL(lines 14 25) the Hoare annotation is: (or (and (= glob2_~pathbuf.offset 0) (= ~tmp~0.base glob2_~pathbuf.base)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (<= |glob2_#in~pathlim.offset| 4)) (not (= |glob2_#in~pathbuf.offset| 0)) (not (<= 4 ~tmp~0.offset))) [2020-08-22 19:46:10,477 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:46:10,477 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 19:46:10,477 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 19:46:10,477 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-08-22 19:46:10,478 INFO L264 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (and (<= main_~bound~0.offset (+ |main_~#pathbuf~0.offset| 4)) (= |main_~#pathbuf~0.offset| 0)) [2020-08-22 19:46:10,478 INFO L264 CegarLoopResult]: At program point L35-2(line 35) the Hoare annotation is: (and (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (= |main_~#pathbuf~0.offset| 0)) [2020-08-22 19:46:10,478 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 27 38) the Hoare annotation is: (and (= |old(~tmp~0.base)| ~tmp~0.base) (= ~tmp~0.offset |old(~tmp~0.offset)|) (= |old(#valid)| |#valid|)) [2020-08-22 19:46:10,478 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (= |main_~#pathbuf~0.offset| 0) [2020-08-22 19:46:10,478 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 27 38) the Hoare annotation is: true [2020-08-22 19:46:10,479 INFO L264 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: (and (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (= |main_~#pathbuf~0.offset| 0)) [2020-08-22 19:46:10,479 INFO L264 CegarLoopResult]: At program point L29-2(line 29) the Hoare annotation is: (and (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (= |main_~#pathbuf~0.offset| 0)) [2020-08-22 19:46:10,479 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 27 38) the Hoare annotation is: true [2020-08-22 19:46:10,479 INFO L264 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (and (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (= |main_~#pathbuf~0.offset| 0)) [2020-08-22 19:46:10,479 INFO L264 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (let ((.cse0 (+ |main_~#pathbuf~0.offset| 4))) (and (<= main_~bound~0.offset .cse0) (<= .cse0 ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (= |main_~#pathbuf~0.offset| 0))) [2020-08-22 19:46:10,480 INFO L264 CegarLoopResult]: At program point L35-1(line 35) the Hoare annotation is: (and (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (= |main_~#pathbuf~0.offset| 0)) [2020-08-22 19:46:10,480 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-08-22 19:46:10,480 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 3 8) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 19:46:10,480 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 19:46:10,480 INFO L264 CegarLoopResult]: At program point L4(lines 4 6) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 19:46:10,480 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 19:46:10,481 INFO L264 CegarLoopResult]: At program point L4-2(lines 3 8) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 19:46:10,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:46:10 BoogieIcfgContainer [2020-08-22 19:46:10,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:46:10,536 INFO L168 Benchmark]: Toolchain (without parser) took 4593.49 ms. Allocated memory was 147.3 MB in the beginning and 274.7 MB in the end (delta: 127.4 MB). Free memory was 103.8 MB in the beginning and 196.0 MB in the end (delta: -92.2 MB). Peak memory consumption was 98.8 MB. Max. memory is 7.1 GB. [2020-08-22 19:46:10,541 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 147.3 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 19:46:10,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.89 ms. Allocated memory is still 147.3 MB. Free memory was 103.4 MB in the beginning and 93.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-08-22 19:46:10,546 INFO L168 Benchmark]: Boogie Preprocessor took 123.81 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 93.6 MB in the beginning and 182.4 MB in the end (delta: -88.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-08-22 19:46:10,547 INFO L168 Benchmark]: RCFGBuilder took 354.70 ms. Allocated memory is still 205.0 MB. Free memory was 182.4 MB in the beginning and 166.5 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2020-08-22 19:46:10,550 INFO L168 Benchmark]: TraceAbstraction took 3859.41 ms. Allocated memory was 205.0 MB in the beginning and 274.7 MB in the end (delta: 69.7 MB). Free memory was 165.9 MB in the beginning and 196.0 MB in the end (delta: -30.1 MB). Peak memory consumption was 103.2 MB. Max. memory is 7.1 GB. [2020-08-22 19:46:10,560 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 147.3 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 249.89 ms. Allocated memory is still 147.3 MB. Free memory was 103.4 MB in the beginning and 93.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.81 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 93.6 MB in the beginning and 182.4 MB in the end (delta: -88.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 354.70 ms. Allocated memory is still 205.0 MB. Free memory was 182.4 MB in the beginning and 166.5 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3859.41 ms. Allocated memory was 205.0 MB in the beginning and 274.7 MB in the end (delta: 69.7 MB). Free memory was 165.9 MB in the beginning and 196.0 MB in the end (delta: -30.1 MB). Peak memory consumption was 103.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 18]: Loop Invariant Derived loop invariant: ((((((((((pathbuf == 0 && p <= tmp) && tmp == p) && pathlim <= 4) && pathlim <= p) && tmp == pathbuf) || (((pathbuf == 0 && pathlim + 4 <= p) && pathlim <= 4) && tmp == pathbuf)) || !(tmp == pathbuf)) || !(pathlim <= 4)) || !(pathbuf == 0)) || ((((pathbuf == 0 && p == 0) && tmp == p) && pathlim <= 4) && tmp == pathbuf)) || !(4 <= tmp) - ProcedureContractResult [Line: 14]: Procedure Contract for glob2 Derived contract for procedure glob2: ((((pathbuf == 0 && tmp == pathbuf) || !(tmp == pathbuf)) || !(pathlim <= 4)) || !(pathbuf == 0)) || !(4 <= tmp) - ProcedureContractResult [Line: 27]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 3]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 201 SDslu, 242 SDs, 0 SdLazy, 434 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 40 LocationsWithAnnotation, 58 PreInvPairs, 90 NumberOfFragments, 634 HoareAnnotationTreeSize, 58 FomulaSimplifications, 915 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 40 FomulaSimplificationsInter, 637 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...