/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/lu.cmp.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 17:44:42,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 17:44:42,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 17:44:42,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 17:44:42,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 17:44:42,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 17:44:42,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 17:44:42,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 17:44:42,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 17:44:42,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 17:44:42,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 17:44:42,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 17:44:42,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 17:44:42,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 17:44:42,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 17:44:42,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 17:44:42,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 17:44:42,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 17:44:42,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 17:44:42,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 17:44:42,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 17:44:42,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 17:44:42,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 17:44:42,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 17:44:42,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 17:44:42,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 17:44:42,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 17:44:42,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 17:44:42,893 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 17:44:42,909 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 17:44:42,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 17:44:42,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 17:44:42,912 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 17:44:42,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 17:44:42,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 17:44:42,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 17:44:42,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 17:44:42,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 17:44:42,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 17:44:42,914 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 17:44:42,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 17:44:42,914 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 17:44:42,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 17:44:42,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 17:44:42,915 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 17:44:42,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 17:44:42,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 17:44:42,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:44:42,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 17:44:42,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 17:44:42,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 17:44:42,916 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 17:44:43,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 17:44:43,459 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 17:44:43,464 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 17:44:43,465 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 17:44:43,466 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 17:44:43,467 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/lu.cmp.c [2020-09-04 17:44:43,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7d9c5a42/006249fa76bb468f80e62d5310f6bcbc/FLAG89907ccf6 [2020-09-04 17:44:44,035 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 17:44:44,036 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/lu.cmp.c [2020-09-04 17:44:44,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7d9c5a42/006249fa76bb468f80e62d5310f6bcbc/FLAG89907ccf6 [2020-09-04 17:44:44,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7d9c5a42/006249fa76bb468f80e62d5310f6bcbc [2020-09-04 17:44:44,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 17:44:44,374 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 17:44:44,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 17:44:44,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 17:44:44,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 17:44:44,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:44:44" (1/1) ... [2020-09-04 17:44:44,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49bfa118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:44, skipping insertion in model container [2020-09-04 17:44:44,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:44:44" (1/1) ... [2020-09-04 17:44:44,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 17:44:44,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 17:44:44,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:44:44,693 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 17:44:44,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:44:44,846 INFO L208 MainTranslator]: Completed translation [2020-09-04 17:44:44,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:44 WrapperNode [2020-09-04 17:44:44,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 17:44:44,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 17:44:44,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 17:44:44,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 17:44:44,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:44" (1/1) ... [2020-09-04 17:44:44,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:44" (1/1) ... [2020-09-04 17:44:44,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:44" (1/1) ... [2020-09-04 17:44:44,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:44" (1/1) ... [2020-09-04 17:44:44,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:44" (1/1) ... [2020-09-04 17:44:44,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:44" (1/1) ... [2020-09-04 17:44:44,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:44" (1/1) ... [2020-09-04 17:44:44,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 17:44:44,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 17:44:44,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 17:44:44,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 17:44:44,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:44:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 17:44:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 17:44:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 17:44:45,007 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2020-09-04 17:44:45,007 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 17:44:45,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2020-09-04 17:44:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 17:44:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 17:44:45,008 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2020-09-04 17:44:45,008 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2020-09-04 17:44:45,008 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 17:44:45,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-04 17:44:45,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-04 17:44:45,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 17:44:45,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 17:44:45,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 17:44:45,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 17:44:45,590 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 17:44:45,591 INFO L295 CfgBuilder]: Removed 11 assume(true) statements. [2020-09-04 17:44:45,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:44:45 BoogieIcfgContainer [2020-09-04 17:44:45,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 17:44:45,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 17:44:45,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 17:44:45,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 17:44:45,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 05:44:44" (1/3) ... [2020-09-04 17:44:45,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449fb146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:44:45, skipping insertion in model container [2020-09-04 17:44:45,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:44" (2/3) ... [2020-09-04 17:44:45,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449fb146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:44:45, skipping insertion in model container [2020-09-04 17:44:45,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:44:45" (3/3) ... [2020-09-04 17:44:45,608 INFO L109 eAbstractionObserver]: Analyzing ICFG lu.cmp.c [2020-09-04 17:44:45,620 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 17:44:45,630 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 17:44:45,653 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 17:44:45,682 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 17:44:45,682 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 17:44:45,682 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 17:44:45,682 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 17:44:45,683 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 17:44:45,683 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 17:44:45,683 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 17:44:45,683 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 17:44:45,712 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-09-04 17:44:45,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-04 17:44:45,726 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:44:45,727 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, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:44:45,728 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:44:45,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:44:45,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1445504148, now seen corresponding path program 1 times [2020-09-04 17:44:45,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:44:45,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045477711] [2020-09-04 17:44:45,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:44:45,823 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:44:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:46,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:44:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:46,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:44:46,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1045477711] [2020-09-04 17:44:46,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:44:46,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 17:44:46,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594608904] [2020-09-04 17:44:46,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 17:44:46,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:44:46,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 17:44:46,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 17:44:46,132 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 5 states. [2020-09-04 17:44:46,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:44:46,780 INFO L93 Difference]: Finished difference Result 367 states and 432 transitions. [2020-09-04 17:44:46,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 17:44:46,782 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-04 17:44:46,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:44:46,794 INFO L225 Difference]: With dead ends: 367 [2020-09-04 17:44:46,794 INFO L226 Difference]: Without dead ends: 64 [2020-09-04 17:44:46,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-04 17:44:46,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-04 17:44:46,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 49. [2020-09-04 17:44:46,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-04 17:44:46,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2020-09-04 17:44:46,863 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 30 [2020-09-04 17:44:46,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:44:46,864 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2020-09-04 17:44:46,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 17:44:46,864 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2020-09-04 17:44:46,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-09-04 17:44:46,865 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:44:46,866 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:44:46,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 17:44:46,866 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:44:46,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:44:46,867 INFO L82 PathProgramCache]: Analyzing trace with hash -905808642, now seen corresponding path program 1 times [2020-09-04 17:44:46,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:44:46,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808410565] [2020-09-04 17:44:46,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:44:46,892 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:44:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:46,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:44:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:47,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:44:47,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808410565] [2020-09-04 17:44:47,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:44:47,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 17:44:47,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999035961] [2020-09-04 17:44:47,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 17:44:47,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:44:47,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 17:44:47,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 17:44:47,015 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand 5 states. [2020-09-04 17:44:47,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:44:47,207 INFO L93 Difference]: Finished difference Result 103 states and 111 transitions. [2020-09-04 17:44:47,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 17:44:47,208 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-09-04 17:44:47,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:44:47,212 INFO L225 Difference]: With dead ends: 103 [2020-09-04 17:44:47,212 INFO L226 Difference]: Without dead ends: 76 [2020-09-04 17:44:47,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-04 17:44:47,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-09-04 17:44:47,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 55. [2020-09-04 17:44:47,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-04 17:44:47,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2020-09-04 17:44:47,238 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 39 [2020-09-04 17:44:47,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:44:47,239 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2020-09-04 17:44:47,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 17:44:47,239 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2020-09-04 17:44:47,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-04 17:44:47,241 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:44:47,241 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:44:47,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 17:44:47,242 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:44:47,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:44:47,243 INFO L82 PathProgramCache]: Analyzing trace with hash -361483259, now seen corresponding path program 1 times [2020-09-04 17:44:47,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:44:47,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445725680] [2020-09-04 17:44:47,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:44:47,251 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:44:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:47,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:44:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:47,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:44:47,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [445725680] [2020-09-04 17:44:47,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:44:47,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 17:44:47,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179187771] [2020-09-04 17:44:47,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 17:44:47,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:44:47,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 17:44:47,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 17:44:47,452 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 6 states. [2020-09-04 17:44:47,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:44:47,796 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2020-09-04 17:44:47,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 17:44:47,798 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-09-04 17:44:47,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:44:47,800 INFO L225 Difference]: With dead ends: 77 [2020-09-04 17:44:47,800 INFO L226 Difference]: Without dead ends: 75 [2020-09-04 17:44:47,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-04 17:44:47,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-04 17:44:47,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2020-09-04 17:44:47,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-04 17:44:47,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2020-09-04 17:44:47,816 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 42 [2020-09-04 17:44:47,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:44:47,817 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2020-09-04 17:44:47,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 17:44:47,817 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2020-09-04 17:44:47,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-04 17:44:47,819 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:44:47,819 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:44:47,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 17:44:47,820 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:44:47,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:44:47,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1960696442, now seen corresponding path program 1 times [2020-09-04 17:44:47,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:44:47,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520684453] [2020-09-04 17:44:47,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:44:47,838 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:44:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:47,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:44:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:47,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-04 17:44:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:47,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:44:47,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520684453] [2020-09-04 17:44:47,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:44:47,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 17:44:47,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146959709] [2020-09-04 17:44:47,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 17:44:47,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:44:47,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 17:44:47,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 17:44:47,982 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand 7 states. [2020-09-04 17:44:48,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:44:48,220 INFO L93 Difference]: Finished difference Result 146 states and 157 transitions. [2020-09-04 17:44:48,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 17:44:48,221 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-09-04 17:44:48,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:44:48,224 INFO L225 Difference]: With dead ends: 146 [2020-09-04 17:44:48,225 INFO L226 Difference]: Without dead ends: 114 [2020-09-04 17:44:48,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-09-04 17:44:48,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-04 17:44:48,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 94. [2020-09-04 17:44:48,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-04 17:44:48,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2020-09-04 17:44:48,244 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 64 [2020-09-04 17:44:48,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:44:48,245 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2020-09-04 17:44:48,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 17:44:48,245 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2020-09-04 17:44:48,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-04 17:44:48,247 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:44:48,247 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:44:48,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 17:44:48,247 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:44:48,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:44:48,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1491522468, now seen corresponding path program 2 times [2020-09-04 17:44:48,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:44:48,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587418255] [2020-09-04 17:44:48,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:44:48,260 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:44:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:48,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:44:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:48,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-04 17:44:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:48,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:44:48,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587418255] [2020-09-04 17:44:48,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:44:48,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 17:44:48,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080115767] [2020-09-04 17:44:48,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 17:44:48,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:44:48,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 17:44:48,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-04 17:44:48,430 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand 9 states. [2020-09-04 17:44:48,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:44:48,760 INFO L93 Difference]: Finished difference Result 182 states and 196 transitions. [2020-09-04 17:44:48,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-04 17:44:48,760 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-09-04 17:44:48,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:44:48,762 INFO L225 Difference]: With dead ends: 182 [2020-09-04 17:44:48,762 INFO L226 Difference]: Without dead ends: 138 [2020-09-04 17:44:48,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-09-04 17:44:48,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-09-04 17:44:48,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 118. [2020-09-04 17:44:48,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-09-04 17:44:48,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 125 transitions. [2020-09-04 17:44:48,805 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 125 transitions. Word has length 82 [2020-09-04 17:44:48,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:44:48,805 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 125 transitions. [2020-09-04 17:44:48,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 17:44:48,806 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 125 transitions. [2020-09-04 17:44:48,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-04 17:44:48,816 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:44:48,816 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:44:48,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 17:44:48,816 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:44:48,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:44:48,817 INFO L82 PathProgramCache]: Analyzing trace with hash 2108507974, now seen corresponding path program 3 times [2020-09-04 17:44:48,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:44:48,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071298399] [2020-09-04 17:44:48,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:44:48,836 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:44:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:49,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:44:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:49,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-04 17:44:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:49,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:44:49,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071298399] [2020-09-04 17:44:49,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:44:49,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-04 17:44:49,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271427002] [2020-09-04 17:44:49,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 17:44:49,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:44:49,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 17:44:49,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-04 17:44:49,074 INFO L87 Difference]: Start difference. First operand 118 states and 125 transitions. Second operand 11 states. [2020-09-04 17:44:49,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:44:49,546 INFO L93 Difference]: Finished difference Result 218 states and 235 transitions. [2020-09-04 17:44:49,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 17:44:49,549 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-09-04 17:44:49,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:44:49,553 INFO L225 Difference]: With dead ends: 218 [2020-09-04 17:44:49,553 INFO L226 Difference]: Without dead ends: 162 [2020-09-04 17:44:49,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-09-04 17:44:49,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-09-04 17:44:49,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 142. [2020-09-04 17:44:49,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-04 17:44:49,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 151 transitions. [2020-09-04 17:44:49,591 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 151 transitions. Word has length 100 [2020-09-04 17:44:49,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:44:49,592 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 151 transitions. [2020-09-04 17:44:49,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 17:44:49,592 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 151 transitions. [2020-09-04 17:44:49,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-09-04 17:44:49,595 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:44:49,595 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:44:49,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 17:44:49,596 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:44:49,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:44:49,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1471539684, now seen corresponding path program 4 times [2020-09-04 17:44:49,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:44:49,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490253584] [2020-09-04 17:44:49,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:44:49,621 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:44:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:49,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:44:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:49,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-04 17:44:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:49,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:44:49,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490253584] [2020-09-04 17:44:49,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:44:49,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 17:44:49,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036642381] [2020-09-04 17:44:49,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 17:44:49,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:44:49,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 17:44:49,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-04 17:44:49,801 INFO L87 Difference]: Start difference. First operand 142 states and 151 transitions. Second operand 8 states. [2020-09-04 17:44:50,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:44:50,140 INFO L93 Difference]: Finished difference Result 208 states and 222 transitions. [2020-09-04 17:44:50,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-04 17:44:50,141 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 118 [2020-09-04 17:44:50,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:44:50,143 INFO L225 Difference]: With dead ends: 208 [2020-09-04 17:44:50,143 INFO L226 Difference]: Without dead ends: 206 [2020-09-04 17:44:50,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-09-04 17:44:50,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-09-04 17:44:50,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 203. [2020-09-04 17:44:50,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-09-04 17:44:50,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 217 transitions. [2020-09-04 17:44:50,185 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 217 transitions. Word has length 118 [2020-09-04 17:44:50,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:44:50,187 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 217 transitions. [2020-09-04 17:44:50,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 17:44:50,187 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 217 transitions. [2020-09-04 17:44:50,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-04 17:44:50,189 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:44:50,190 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 11, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:44:50,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 17:44:50,190 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:44:50,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:44:50,191 INFO L82 PathProgramCache]: Analyzing trace with hash 2112155237, now seen corresponding path program 5 times [2020-09-04 17:44:50,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:44:50,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54489039] [2020-09-04 17:44:50,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:44:50,211 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:44:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:50,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:44:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:50,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-04 17:44:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:50,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-04 17:44:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:50,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:44:50,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54489039] [2020-09-04 17:44:50,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:44:50,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-04 17:44:50,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668936027] [2020-09-04 17:44:50,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-04 17:44:50,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:44:50,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-04 17:44:50,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-09-04 17:44:50,484 INFO L87 Difference]: Start difference. First operand 203 states and 217 transitions. Second operand 13 states. [2020-09-04 17:44:50,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:44:50,947 INFO L93 Difference]: Finished difference Result 398 states and 431 transitions. [2020-09-04 17:44:50,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-04 17:44:50,947 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 167 [2020-09-04 17:44:50,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:44:50,949 INFO L225 Difference]: With dead ends: 398 [2020-09-04 17:44:50,949 INFO L226 Difference]: Without dead ends: 269 [2020-09-04 17:44:50,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=492, Unknown=0, NotChecked=0, Total=702 [2020-09-04 17:44:50,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-09-04 17:44:50,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 239. [2020-09-04 17:44:50,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-04 17:44:50,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 256 transitions. [2020-09-04 17:44:50,980 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 256 transitions. Word has length 167 [2020-09-04 17:44:50,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:44:50,980 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 256 transitions. [2020-09-04 17:44:50,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-04 17:44:50,981 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 256 transitions. [2020-09-04 17:44:50,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-04 17:44:50,983 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:44:50,983 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 14, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:44:50,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-04 17:44:50,984 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:44:50,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:44:50,984 INFO L82 PathProgramCache]: Analyzing trace with hash 917121735, now seen corresponding path program 6 times [2020-09-04 17:44:50,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:44:50,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885483908] [2020-09-04 17:44:50,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:44:51,001 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:44:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:51,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:44:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:51,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-04 17:44:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:51,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 17:44:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:51,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:44:51,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885483908] [2020-09-04 17:44:51,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:44:51,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-04 17:44:51,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200875813] [2020-09-04 17:44:51,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-04 17:44:51,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:44:51,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-04 17:44:51,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2020-09-04 17:44:51,307 INFO L87 Difference]: Start difference. First operand 239 states and 256 transitions. Second operand 15 states. [2020-09-04 17:44:52,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:44:52,095 INFO L93 Difference]: Finished difference Result 428 states and 463 transitions. [2020-09-04 17:44:52,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-04 17:44:52,096 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 194 [2020-09-04 17:44:52,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:44:52,099 INFO L225 Difference]: With dead ends: 428 [2020-09-04 17:44:52,099 INFO L226 Difference]: Without dead ends: 275 [2020-09-04 17:44:52,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=293, Invalid=699, Unknown=0, NotChecked=0, Total=992 [2020-09-04 17:44:52,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-09-04 17:44:52,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2020-09-04 17:44:52,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-09-04 17:44:52,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 295 transitions. [2020-09-04 17:44:52,147 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 295 transitions. Word has length 194 [2020-09-04 17:44:52,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:44:52,148 INFO L479 AbstractCegarLoop]: Abstraction has 275 states and 295 transitions. [2020-09-04 17:44:52,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-04 17:44:52,148 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 295 transitions. [2020-09-04 17:44:52,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-09-04 17:44:52,151 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:44:52,151 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 17, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 17:44:52,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-04 17:44:52,152 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:44:52,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:44:52,152 INFO L82 PathProgramCache]: Analyzing trace with hash 374306853, now seen corresponding path program 7 times [2020-09-04 17:44:52,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:44:52,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127463623] [2020-09-04 17:44:52,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:44:52,176 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:44:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:52,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:44:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:52,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 17:44:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:52,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-04 17:44:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:52,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:44:52,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1127463623] [2020-09-04 17:44:52,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:44:52,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 17:44:52,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148647693] [2020-09-04 17:44:52,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 17:44:52,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:44:52,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 17:44:52,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-04 17:44:52,439 INFO L87 Difference]: Start difference. First operand 275 states and 295 transitions. Second operand 9 states. [2020-09-04 17:44:52,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:44:52,907 INFO L93 Difference]: Finished difference Result 512 states and 545 transitions. [2020-09-04 17:44:52,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 17:44:52,908 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 221 [2020-09-04 17:44:52,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:44:52,911 INFO L225 Difference]: With dead ends: 512 [2020-09-04 17:44:52,912 INFO L226 Difference]: Without dead ends: 350 [2020-09-04 17:44:52,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-09-04 17:44:52,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-09-04 17:44:52,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 272. [2020-09-04 17:44:52,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-09-04 17:44:52,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 290 transitions. [2020-09-04 17:44:52,971 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 290 transitions. Word has length 221 [2020-09-04 17:44:52,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:44:52,971 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 290 transitions. [2020-09-04 17:44:52,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 17:44:52,972 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 290 transitions. [2020-09-04 17:44:52,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-04 17:44:52,976 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:44:52,976 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 16, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2020-09-04 17:44:52,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-04 17:44:52,977 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:44:52,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:44:52,977 INFO L82 PathProgramCache]: Analyzing trace with hash -368860214, now seen corresponding path program 8 times [2020-09-04 17:44:52,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:44:52,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302654800] [2020-09-04 17:44:52,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:44:53,011 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:44:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:53,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:44:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:53,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 17:44:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:53,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-04 17:44:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:44:53,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:44:53,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302654800] [2020-09-04 17:44:53,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:44:53,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 17:44:53,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931169339] [2020-09-04 17:44:53,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 17:44:53,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:44:53,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 17:44:53,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-04 17:44:53,281 INFO L87 Difference]: Start difference. First operand 272 states and 290 transitions. Second operand 7 states. [2020-09-04 17:44:53,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:44:53,585 INFO L93 Difference]: Finished difference Result 272 states and 290 transitions. [2020-09-04 17:44:53,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 17:44:53,586 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 224 [2020-09-04 17:44:53,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:44:53,587 INFO L225 Difference]: With dead ends: 272 [2020-09-04 17:44:53,587 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 17:44:53,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-09-04 17:44:53,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 17:44:53,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 17:44:53,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 17:44:53,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 17:44:53,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 224 [2020-09-04 17:44:53,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:44:53,590 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 17:44:53,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 17:44:53,590 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 17:44:53,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 17:44:53,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-04 17:44:53,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 17:44:54,267 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 35 [2020-09-04 17:44:54,418 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 35 [2020-09-04 17:44:54,708 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 35 [2020-09-04 17:44:55,207 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 45 [2020-09-04 17:44:55,368 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 35 [2020-09-04 17:44:56,467 INFO L271 CegarLoopResult]: At program point L118(line 118) the Hoare annotation is: true [2020-09-04 17:44:56,468 INFO L271 CegarLoopResult]: At program point L118-1(line 118) the Hoare annotation is: true [2020-09-04 17:44:56,468 INFO L271 CegarLoopResult]: At program point L118-2(line 118) the Hoare annotation is: true [2020-09-04 17:44:56,468 INFO L271 CegarLoopResult]: At program point L118-3(line 118) the Hoare annotation is: true [2020-09-04 17:44:56,468 INFO L271 CegarLoopResult]: At program point L118-4(line 118) the Hoare annotation is: true [2020-09-04 17:44:56,469 INFO L271 CegarLoopResult]: At program point L118-5(line 118) the Hoare annotation is: true [2020-09-04 17:44:56,469 INFO L271 CegarLoopResult]: At program point L118-6(line 118) the Hoare annotation is: true [2020-09-04 17:44:56,469 INFO L271 CegarLoopResult]: At program point L118-7(line 118) the Hoare annotation is: true [2020-09-04 17:44:56,469 INFO L271 CegarLoopResult]: At program point L135(line 135) the Hoare annotation is: true [2020-09-04 17:44:56,469 INFO L271 CegarLoopResult]: At program point L135-1(line 135) the Hoare annotation is: true [2020-09-04 17:44:56,469 INFO L271 CegarLoopResult]: At program point L119(line 119) the Hoare annotation is: true [2020-09-04 17:44:56,469 INFO L271 CegarLoopResult]: At program point L119-3(lines 119 126) the Hoare annotation is: true [2020-09-04 17:44:56,470 INFO L271 CegarLoopResult]: At program point L119-4(line 119) the Hoare annotation is: true [2020-09-04 17:44:56,470 INFO L271 CegarLoopResult]: At program point L119-5(line 119) the Hoare annotation is: true [2020-09-04 17:44:56,470 INFO L271 CegarLoopResult]: At program point L119-6(lines 119 126) the Hoare annotation is: true [2020-09-04 17:44:56,470 INFO L271 CegarLoopResult]: At program point L119-7(lines 119 126) the Hoare annotation is: true [2020-09-04 17:44:56,470 INFO L271 CegarLoopResult]: At program point L136(line 136) the Hoare annotation is: true [2020-09-04 17:44:56,470 INFO L271 CegarLoopResult]: At program point L136-3(line 136) the Hoare annotation is: true [2020-09-04 17:44:56,470 INFO L271 CegarLoopResult]: At program point L136-4(line 136) the Hoare annotation is: true [2020-09-04 17:44:56,471 INFO L271 CegarLoopResult]: At program point L136-5(lines 136 142) the Hoare annotation is: true [2020-09-04 17:44:56,471 INFO L271 CegarLoopResult]: At program point L136-6(lines 136 142) the Hoare annotation is: true [2020-09-04 17:44:56,471 INFO L271 CegarLoopResult]: At program point ludcmpEXIT(lines 109 153) the Hoare annotation is: true [2020-09-04 17:44:56,471 INFO L264 CegarLoopResult]: At program point ludcmpENTRY(lines 109 153) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,471 INFO L271 CegarLoopResult]: At program point L121(line 121) the Hoare annotation is: true [2020-09-04 17:44:56,471 INFO L271 CegarLoopResult]: At program point L121-1(line 121) the Hoare annotation is: true [2020-09-04 17:44:56,472 INFO L271 CegarLoopResult]: At program point L121-2(line 121) the Hoare annotation is: true [2020-09-04 17:44:56,472 INFO L271 CegarLoopResult]: At program point L138(line 138) the Hoare annotation is: true [2020-09-04 17:44:56,472 INFO L271 CegarLoopResult]: At program point L138-1(line 138) the Hoare annotation is: true [2020-09-04 17:44:56,472 INFO L271 CegarLoopResult]: At program point L138-2(line 138) the Hoare annotation is: true [2020-09-04 17:44:56,472 INFO L271 CegarLoopResult]: At program point L122(lines 122 124) the Hoare annotation is: true [2020-09-04 17:44:56,472 INFO L271 CegarLoopResult]: At program point L122-1(lines 122 124) the Hoare annotation is: true [2020-09-04 17:44:56,473 INFO L271 CegarLoopResult]: At program point L139(line 139) the Hoare annotation is: true [2020-09-04 17:44:56,473 INFO L271 CegarLoopResult]: At program point L139-3(lines 139 140) the Hoare annotation is: true [2020-09-04 17:44:56,473 INFO L271 CegarLoopResult]: At program point L139-4(line 139) the Hoare annotation is: true [2020-09-04 17:44:56,473 INFO L271 CegarLoopResult]: At program point L139-5(line 139) the Hoare annotation is: true [2020-09-04 17:44:56,473 INFO L271 CegarLoopResult]: At program point L139-6(lines 139 140) the Hoare annotation is: true [2020-09-04 17:44:56,473 INFO L271 CegarLoopResult]: At program point L139-7(lines 139 140) the Hoare annotation is: true [2020-09-04 17:44:56,473 INFO L271 CegarLoopResult]: At program point L123(line 123) the Hoare annotation is: true [2020-09-04 17:44:56,474 INFO L271 CegarLoopResult]: At program point L123-3(lines 123 124) the Hoare annotation is: true [2020-09-04 17:44:56,474 INFO L271 CegarLoopResult]: At program point L123-4(line 123) the Hoare annotation is: true [2020-09-04 17:44:56,474 INFO L271 CegarLoopResult]: At program point L123-5(line 123) the Hoare annotation is: true [2020-09-04 17:44:56,474 INFO L271 CegarLoopResult]: At program point L123-6(lines 123 124) the Hoare annotation is: true [2020-09-04 17:44:56,474 INFO L271 CegarLoopResult]: At program point L140(line 140) the Hoare annotation is: true [2020-09-04 17:44:56,474 INFO L271 CegarLoopResult]: At program point L140-1(line 140) the Hoare annotation is: true [2020-09-04 17:44:56,474 INFO L271 CegarLoopResult]: At program point L140-2(line 140) the Hoare annotation is: true [2020-09-04 17:44:56,475 INFO L271 CegarLoopResult]: At program point L140-3(line 140) the Hoare annotation is: true [2020-09-04 17:44:56,475 INFO L271 CegarLoopResult]: At program point L140-4(line 140) the Hoare annotation is: true [2020-09-04 17:44:56,475 INFO L271 CegarLoopResult]: At program point L124(line 124) the Hoare annotation is: true [2020-09-04 17:44:56,475 INFO L271 CegarLoopResult]: At program point L124-1(line 124) the Hoare annotation is: true [2020-09-04 17:44:56,475 INFO L271 CegarLoopResult]: At program point L124-2(line 124) the Hoare annotation is: true [2020-09-04 17:44:56,475 INFO L271 CegarLoopResult]: At program point L124-3(line 124) the Hoare annotation is: true [2020-09-04 17:44:56,476 INFO L271 CegarLoopResult]: At program point L124-4(line 124) the Hoare annotation is: true [2020-09-04 17:44:56,476 INFO L271 CegarLoopResult]: At program point L141(lines 136 142) the Hoare annotation is: true [2020-09-04 17:44:56,476 INFO L271 CegarLoopResult]: At program point L125(line 125) the Hoare annotation is: true [2020-09-04 17:44:56,476 INFO L271 CegarLoopResult]: At program point L125-1(line 125) the Hoare annotation is: true [2020-09-04 17:44:56,476 INFO L264 CegarLoopResult]: At program point L109(lines 109 153) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,476 INFO L264 CegarLoopResult]: At program point L109-1(lines 109 153) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,477 INFO L271 CegarLoopResult]: At program point L143(line 143) the Hoare annotation is: true [2020-09-04 17:44:56,477 INFO L271 CegarLoopResult]: At program point L143-1(line 143) the Hoare annotation is: true [2020-09-04 17:44:56,477 INFO L271 CegarLoopResult]: At program point L143-2(line 143) the Hoare annotation is: true [2020-09-04 17:44:56,477 INFO L271 CegarLoopResult]: At program point L143-3(line 143) the Hoare annotation is: true [2020-09-04 17:44:56,477 INFO L271 CegarLoopResult]: At program point L127-2(line 127) the Hoare annotation is: true [2020-09-04 17:44:56,477 INFO L271 CegarLoopResult]: At program point L127-3(line 127) the Hoare annotation is: true [2020-09-04 17:44:56,477 INFO L271 CegarLoopResult]: At program point L127-4(lines 127 133) the Hoare annotation is: true [2020-09-04 17:44:56,477 INFO L271 CegarLoopResult]: At program point L144(line 144) the Hoare annotation is: true [2020-09-04 17:44:56,478 INFO L271 CegarLoopResult]: At program point L144-3(lines 144 150) the Hoare annotation is: true [2020-09-04 17:44:56,478 INFO L271 CegarLoopResult]: At program point L144-4(line 144) the Hoare annotation is: true [2020-09-04 17:44:56,478 INFO L271 CegarLoopResult]: At program point L144-5(line 144) the Hoare annotation is: true [2020-09-04 17:44:56,478 INFO L271 CegarLoopResult]: At program point L144-6(lines 144 150) the Hoare annotation is: true [2020-09-04 17:44:56,478 INFO L271 CegarLoopResult]: At program point L144-7(lines 144 150) the Hoare annotation is: true [2020-09-04 17:44:56,478 INFO L264 CegarLoopResult]: At program point L112(line 112) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,479 INFO L264 CegarLoopResult]: At program point L112-1(line 112) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,479 INFO L264 CegarLoopResult]: At program point L112-2(line 112) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,479 INFO L271 CegarLoopResult]: At program point L129(line 129) the Hoare annotation is: true [2020-09-04 17:44:56,479 INFO L271 CegarLoopResult]: At program point L129-1(line 129) the Hoare annotation is: true [2020-09-04 17:44:56,479 INFO L271 CegarLoopResult]: At program point L129-2(line 129) the Hoare annotation is: true [2020-09-04 17:44:56,479 INFO L271 CegarLoopResult]: At program point L146(line 146) the Hoare annotation is: true [2020-09-04 17:44:56,479 INFO L264 CegarLoopResult]: At program point L113(line 113) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,480 INFO L271 CegarLoopResult]: At program point L146-1(line 146) the Hoare annotation is: true [2020-09-04 17:44:56,480 INFO L264 CegarLoopResult]: At program point L113-1(line 113) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,480 INFO L271 CegarLoopResult]: At program point L146-2(line 146) the Hoare annotation is: true [2020-09-04 17:44:56,480 INFO L271 CegarLoopResult]: At program point L113-2(lines 110 153) the Hoare annotation is: true [2020-09-04 17:44:56,480 INFO L271 CegarLoopResult]: At program point L113-3(line 113) the Hoare annotation is: true [2020-09-04 17:44:56,480 INFO L271 CegarLoopResult]: At program point L113-4(line 113) the Hoare annotation is: true [2020-09-04 17:44:56,480 INFO L271 CegarLoopResult]: At program point L113-5(line 113) the Hoare annotation is: true [2020-09-04 17:44:56,481 INFO L271 CegarLoopResult]: At program point L113-6(line 113) the Hoare annotation is: true [2020-09-04 17:44:56,481 INFO L271 CegarLoopResult]: At program point L113-7(line 113) the Hoare annotation is: true [2020-09-04 17:44:56,481 INFO L271 CegarLoopResult]: At program point L113-8(line 113) the Hoare annotation is: true [2020-09-04 17:44:56,481 INFO L271 CegarLoopResult]: At program point ludcmpFINAL(lines 109 153) the Hoare annotation is: true [2020-09-04 17:44:56,481 INFO L271 CegarLoopResult]: At program point L130(line 130) the Hoare annotation is: true [2020-09-04 17:44:56,481 INFO L271 CegarLoopResult]: At program point L130-3(lines 130 131) the Hoare annotation is: true [2020-09-04 17:44:56,482 INFO L271 CegarLoopResult]: At program point L130-4(line 130) the Hoare annotation is: true [2020-09-04 17:44:56,482 INFO L271 CegarLoopResult]: At program point L130-5(line 130) the Hoare annotation is: true [2020-09-04 17:44:56,482 INFO L271 CegarLoopResult]: At program point L130-6(lines 130 131) the Hoare annotation is: true [2020-09-04 17:44:56,482 INFO L271 CegarLoopResult]: At program point L130-7(lines 130 131) the Hoare annotation is: true [2020-09-04 17:44:56,482 INFO L271 CegarLoopResult]: At program point L147(line 147) the Hoare annotation is: true [2020-09-04 17:44:56,482 INFO L271 CegarLoopResult]: At program point L147-3(lines 147 148) the Hoare annotation is: true [2020-09-04 17:44:56,483 INFO L271 CegarLoopResult]: At program point L147-4(line 147) the Hoare annotation is: true [2020-09-04 17:44:56,483 INFO L271 CegarLoopResult]: At program point L147-5(line 147) the Hoare annotation is: true [2020-09-04 17:44:56,483 INFO L271 CegarLoopResult]: At program point L147-6(lines 147 148) the Hoare annotation is: true [2020-09-04 17:44:56,483 INFO L271 CegarLoopResult]: At program point L147-7(lines 147 148) the Hoare annotation is: true [2020-09-04 17:44:56,483 INFO L271 CegarLoopResult]: At program point L131(line 131) the Hoare annotation is: true [2020-09-04 17:44:56,483 INFO L271 CegarLoopResult]: At program point L131-1(line 131) the Hoare annotation is: true [2020-09-04 17:44:56,483 INFO L271 CegarLoopResult]: At program point L131-2(line 131) the Hoare annotation is: true [2020-09-04 17:44:56,484 INFO L271 CegarLoopResult]: At program point L131-3(line 131) the Hoare annotation is: true [2020-09-04 17:44:56,484 INFO L271 CegarLoopResult]: At program point L131-4(line 131) the Hoare annotation is: true [2020-09-04 17:44:56,484 INFO L271 CegarLoopResult]: At program point L148(line 148) the Hoare annotation is: true [2020-09-04 17:44:56,484 INFO L271 CegarLoopResult]: At program point L115(line 115) the Hoare annotation is: true [2020-09-04 17:44:56,484 INFO L271 CegarLoopResult]: At program point L148-1(line 148) the Hoare annotation is: true [2020-09-04 17:44:56,484 INFO L271 CegarLoopResult]: At program point L148-2(line 148) the Hoare annotation is: true [2020-09-04 17:44:56,484 INFO L271 CegarLoopResult]: At program point L148-3(line 148) the Hoare annotation is: true [2020-09-04 17:44:56,485 INFO L271 CegarLoopResult]: At program point L148-4(line 148) the Hoare annotation is: true [2020-09-04 17:44:56,485 INFO L271 CegarLoopResult]: At program point L132(lines 127 133) the Hoare annotation is: true [2020-09-04 17:44:56,485 INFO L271 CegarLoopResult]: At program point L149(line 149) the Hoare annotation is: true [2020-09-04 17:44:56,485 INFO L271 CegarLoopResult]: At program point L116(line 116) the Hoare annotation is: true [2020-09-04 17:44:56,485 INFO L271 CegarLoopResult]: At program point L149-1(line 149) the Hoare annotation is: true [2020-09-04 17:44:56,485 INFO L271 CegarLoopResult]: At program point L116-3(lines 116 134) the Hoare annotation is: true [2020-09-04 17:44:56,485 INFO L271 CegarLoopResult]: At program point L116-4(line 116) the Hoare annotation is: true [2020-09-04 17:44:56,486 INFO L271 CegarLoopResult]: At program point L116-5(line 116) the Hoare annotation is: true [2020-09-04 17:44:56,486 INFO L271 CegarLoopResult]: At program point L116-6(lines 116 134) the Hoare annotation is: true [2020-09-04 17:44:56,486 INFO L271 CegarLoopResult]: At program point L116-7(lines 116 134) the Hoare annotation is: true [2020-09-04 17:44:56,486 INFO L271 CegarLoopResult]: At program point L69-4(line 69) the Hoare annotation is: true [2020-09-04 17:44:56,486 INFO L271 CegarLoopResult]: At program point L69-5(line 69) the Hoare annotation is: true [2020-09-04 17:44:56,486 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 17:44:56,486 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-09-04 17:44:56,487 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 17:44:56,487 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#x~0.offset| |old(~#x~0.offset)|) (= |old(#memory_real)| |#memory_real|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |old(#length)| |#length|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,487 INFO L271 CegarLoopResult]: At program point L69(line 69) the Hoare annotation is: true [2020-09-04 17:44:56,487 INFO L271 CegarLoopResult]: At program point L69-1(line 69) the Hoare annotation is: true [2020-09-04 17:44:56,487 INFO L271 CegarLoopResult]: At program point L69-2(line 69) the Hoare annotation is: true [2020-09-04 17:44:56,487 INFO L271 CegarLoopResult]: At program point L69-3(line 69) the Hoare annotation is: true [2020-09-04 17:44:56,488 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 17:44:56,488 INFO L271 CegarLoopResult]: At program point L79(line 79) the Hoare annotation is: true [2020-09-04 17:44:56,488 INFO L271 CegarLoopResult]: At program point L78(lines 78 79) the Hoare annotation is: true [2020-09-04 17:44:56,488 INFO L271 CegarLoopResult]: At program point L78-1(line 78) the Hoare annotation is: true [2020-09-04 17:44:56,488 INFO L271 CegarLoopResult]: At program point L76(line 76) the Hoare annotation is: true [2020-09-04 17:44:56,488 INFO L271 CegarLoopResult]: At program point L78-3(lines 78 79) the Hoare annotation is: true [2020-09-04 17:44:56,488 INFO L271 CegarLoopResult]: At program point fabsEXIT(lines 74 81) the Hoare annotation is: true [2020-09-04 17:44:56,489 INFO L271 CegarLoopResult]: At program point fabsENTRY(lines 74 81) the Hoare annotation is: true [2020-09-04 17:44:56,489 INFO L271 CegarLoopResult]: At program point fabsFINAL(lines 74 81) the Hoare annotation is: true [2020-09-04 17:44:56,489 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 17:44:56,489 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 17:44:56,489 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 17:44:56,489 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 17:44:56,489 INFO L264 CegarLoopResult]: At program point L97(line 97) the Hoare annotation is: (and (<= main_~j~0 main_~n~0) (< main_~j~0 (+ main_~i~0 1)) (<= main_~i~0 main_~j~0) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,490 INFO L264 CegarLoopResult]: At program point L97-1(line 97) the Hoare annotation is: (and (<= main_~j~0 main_~n~0) (< main_~j~0 (+ main_~i~0 1)) (<= main_~i~0 main_~j~0) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,490 INFO L264 CegarLoopResult]: At program point L97-2(line 97) the Hoare annotation is: (and (<= main_~j~0 main_~n~0) (< main_~j~0 (+ main_~i~0 1)) (<= main_~i~0 main_~j~0) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,490 INFO L264 CegarLoopResult]: At program point L93(line 93) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,490 INFO L264 CegarLoopResult]: At program point L97-4(line 97) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~j~0 main_~n~0) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,490 INFO L264 CegarLoopResult]: At program point L89(line 89) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (<= main_~n~0 5) (<= 5 main_~n~0) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,490 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 83 107) the Hoare annotation is: (<= 5 main_~n~0) [2020-09-04 17:44:56,491 INFO L264 CegarLoopResult]: At program point L106(line 106) the Hoare annotation is: (<= 5 main_~n~0) [2020-09-04 17:44:56,491 INFO L264 CegarLoopResult]: At program point L98(line 98) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~j~0 main_~n~0) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,491 INFO L264 CegarLoopResult]: At program point L98-1(line 98) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~j~0 main_~n~0) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,491 INFO L264 CegarLoopResult]: At program point L94(line 94) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,491 INFO L264 CegarLoopResult]: At program point L94-3(lines 94 99) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~j~0 main_~n~0) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,491 INFO L264 CegarLoopResult]: At program point L94-4(line 94) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~j~0 main_~n~0) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,492 INFO L264 CegarLoopResult]: At program point L94-5(line 94) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,492 INFO L264 CegarLoopResult]: At program point L94-6(lines 94 99) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,492 INFO L264 CegarLoopResult]: At program point L94-7(lines 94 99) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,492 INFO L264 CegarLoopResult]: At program point L86(line 86) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,492 INFO L264 CegarLoopResult]: At program point L86-1(line 86) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,492 INFO L264 CegarLoopResult]: At program point L86-2(line 86) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,493 INFO L264 CegarLoopResult]: At program point L86-3(line 86) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (<= main_~n~0 5) (<= 5 main_~n~0) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,493 INFO L264 CegarLoopResult]: At program point L91(line 91) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (<= main_~n~0 5) (<= 5 main_~n~0) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,493 INFO L264 CegarLoopResult]: At program point L91-3(line 91) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,493 INFO L264 CegarLoopResult]: At program point L87(line 87) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (<= main_~n~0 5) (<= 5 main_~n~0) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,493 INFO L264 CegarLoopResult]: At program point L91-4(line 91) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,493 INFO L264 CegarLoopResult]: At program point L87-1(line 87) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (<= main_~n~0 5) (<= 5 main_~n~0) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,493 INFO L264 CegarLoopResult]: At program point L91-5(lines 91 102) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,494 INFO L264 CegarLoopResult]: At program point L91-6(lines 91 102) the Hoare annotation is: (<= 5 main_~n~0) [2020-09-04 17:44:56,494 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 83 107) the Hoare annotation is: (<= 5 main_~n~0) [2020-09-04 17:44:56,494 INFO L264 CegarLoopResult]: At program point L104(line 104) the Hoare annotation is: (<= 5 main_~n~0) [2020-09-04 17:44:56,494 INFO L264 CegarLoopResult]: At program point L104-1(line 104) the Hoare annotation is: (<= 5 main_~n~0) [2020-09-04 17:44:56,494 INFO L264 CegarLoopResult]: At program point L104-2(line 104) the Hoare annotation is: (<= 5 main_~n~0) [2020-09-04 17:44:56,494 INFO L264 CegarLoopResult]: At program point L100(line 100) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,495 INFO L264 CegarLoopResult]: At program point L96(line 96) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~j~0 main_~n~0) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,495 INFO L264 CegarLoopResult]: At program point L96-1(lines 95 99) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~j~0 main_~n~0) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,495 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 83 107) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-04 17:44:56,495 INFO L264 CegarLoopResult]: At program point L101(lines 91 102) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-04 17:44:56,495 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-04 17:44:56,495 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))) [2020-09-04 17:44:56,496 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 17:44:56,496 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))) [2020-09-04 17:44:56,496 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 17:44:56,496 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))) [2020-09-04 17:44:56,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 05:44:56 BoogieIcfgContainer [2020-09-04 17:44:56,520 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 17:44:56,522 INFO L168 Benchmark]: Toolchain (without parser) took 12148.05 ms. Allocated memory was 138.4 MB in the beginning and 371.7 MB in the end (delta: 233.3 MB). Free memory was 102.4 MB in the beginning and 277.6 MB in the end (delta: -175.2 MB). Peak memory consumption was 219.6 MB. Max. memory is 7.1 GB. [2020-09-04 17:44:56,523 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 17:44:56,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.92 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 102.2 MB in the beginning and 181.5 MB in the end (delta: -79.3 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-09-04 17:44:56,524 INFO L168 Benchmark]: Boogie Preprocessor took 84.90 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 179.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-09-04 17:44:56,525 INFO L168 Benchmark]: RCFGBuilder took 665.37 ms. Allocated memory is still 203.4 MB. Free memory was 179.0 MB in the beginning and 139.7 MB in the end (delta: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 7.1 GB. [2020-09-04 17:44:56,526 INFO L168 Benchmark]: TraceAbstraction took 10920.49 ms. Allocated memory was 203.4 MB in the beginning and 371.7 MB in the end (delta: 168.3 MB). Free memory was 139.1 MB in the beginning and 277.6 MB in the end (delta: -138.5 MB). Peak memory consumption was 191.2 MB. Max. memory is 7.1 GB. [2020-09-04 17:44:56,529 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 471.92 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 102.2 MB in the beginning and 181.5 MB in the end (delta: -79.3 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.90 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 179.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 665.37 ms. Allocated memory is still 203.4 MB. Free memory was 179.0 MB in the beginning and 139.7 MB in the end (delta: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10920.49 ms. Allocated memory was 203.4 MB in the beginning and 371.7 MB in the end (delta: 168.3 MB). Free memory was 139.1 MB in the beginning and 277.6 MB in the end (delta: -138.5 MB). Peak memory consumption was 191.2 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: 119]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: n <= 5 && 5 <= n - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: (i <= 5 && n <= 5) && 5 <= n - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 109]: Procedure Contract for ludcmp Derived contract for procedure ludcmp: 1 - ProcedureContractResult [Line: 74]: Procedure Contract for fabs Derived contract for procedure fabs: 1 - ProcedureContractResult [Line: 83]: Procedure Contract for main Derived contract for procedure main: 5 <= n - 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 6 procedures, 186 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.9s, OverallIterations: 11, TraceHistogramMax: 18, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 588 SDtfs, 940 SDslu, 1239 SDs, 0 SdLazy, 2055 SolverSat, 106 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 213 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=275occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 210 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 186 LocationsWithAnnotation, 544 PreInvPairs, 1012 NumberOfFragments, 660 HoareAnnotationTreeSize, 544 FomulaSimplifications, 126886 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 186 FomulaSimplificationsInter, 1719 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...