/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/lu.cmp.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 18:05:38,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 18:05:38,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 18:05:38,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 18:05:38,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 18:05:38,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 18:05:38,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 18:05:38,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 18:05:38,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 18:05:38,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 18:05:38,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 18:05:38,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 18:05:38,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 18:05:38,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 18:05:38,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 18:05:38,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 18:05:38,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 18:05:38,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 18:05:38,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 18:05:38,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 18:05:38,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 18:05:38,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 18:05:38,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 18:05:38,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 18:05:38,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 18:05:38,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 18:05:38,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 18:05:38,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 18:05:38,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 18:05:38,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-07-17 18:05:38,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 18:05:38,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 18:05:38,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 18:05:38,779 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 18:05:38,789 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 18:05:38,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 18:05:38,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 18:05:38,792 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 18:05:38,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 18:05:38,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 18:05:38,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 18:05:38,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 18:05:38,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 18:05:38,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 18:05:38,793 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 18:05:38,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 18:05:38,793 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 18:05:38,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 18:05:38,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 18:05:38,794 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 18:05:38,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 18:05:38,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 18:05:38,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 18:05:38,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 18:05:38,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 18:05:38,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 18:05:38,795 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-17 18:05:39,081 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 18:05:39,093 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 18:05:39,097 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 18:05:39,099 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 18:05:39,099 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 18:05:39,100 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/lu.cmp.c [2020-07-17 18:05:39,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cdea5894/165e3a306c234c63841bdcb9ee0a9e9a/FLAG0d765a702 [2020-07-17 18:05:39,676 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 18:05:39,677 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/lu.cmp.c [2020-07-17 18:05:39,688 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cdea5894/165e3a306c234c63841bdcb9ee0a9e9a/FLAG0d765a702 [2020-07-17 18:05:39,993 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cdea5894/165e3a306c234c63841bdcb9ee0a9e9a [2020-07-17 18:05:40,004 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 18:05:40,008 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 18:05:40,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 18:05:40,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 18:05:40,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 18:05:40,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 06:05:39" (1/1) ... [2020-07-17 18:05:40,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@523bd800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:05:40, skipping insertion in model container [2020-07-17 18:05:40,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 06:05:39" (1/1) ... [2020-07-17 18:05:40,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 18:05:40,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 18:05:40,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 18:05:40,298 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 18:05:40,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 18:05:40,474 INFO L208 MainTranslator]: Completed translation [2020-07-17 18:05:40,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:05:40 WrapperNode [2020-07-17 18:05:40,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 18:05:40,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 18:05:40,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 18:05:40,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 18:05:40,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:05:40" (1/1) ... [2020-07-17 18:05:40,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:05:40" (1/1) ... [2020-07-17 18:05:40,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:05:40" (1/1) ... [2020-07-17 18:05:40,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:05:40" (1/1) ... [2020-07-17 18:05:40,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:05:40" (1/1) ... [2020-07-17 18:05:40,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:05:40" (1/1) ... [2020-07-17 18:05:40,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:05:40" (1/1) ... [2020-07-17 18:05:40,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 18:05:40,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 18:05:40,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 18:05:40,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 18:05:40,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:05:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 18:05:40,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 18:05:40,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 18:05:40,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 18:05:40,621 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2020-07-17 18:05:40,621 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 18:05:40,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2020-07-17 18:05:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 18:05:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 18:05:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2020-07-17 18:05:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2020-07-17 18:05:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 18:05:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 18:05:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 18:05:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 18:05:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 18:05:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 18:05:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 18:05:41,230 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 18:05:41,230 INFO L295 CfgBuilder]: Removed 11 assume(true) statements. [2020-07-17 18:05:41,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 06:05:41 BoogieIcfgContainer [2020-07-17 18:05:41,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 18:05:41,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 18:05:41,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 18:05:41,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 18:05:41,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 06:05:39" (1/3) ... [2020-07-17 18:05:41,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a1927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 06:05:41, skipping insertion in model container [2020-07-17 18:05:41,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:05:40" (2/3) ... [2020-07-17 18:05:41,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a1927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 06:05:41, skipping insertion in model container [2020-07-17 18:05:41,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 06:05:41" (3/3) ... [2020-07-17 18:05:41,252 INFO L109 eAbstractionObserver]: Analyzing ICFG lu.cmp.c [2020-07-17 18:05:41,266 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 18:05:41,278 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 18:05:41,295 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 18:05:41,323 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 18:05:41,323 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 18:05:41,323 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 18:05:41,324 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 18:05:41,325 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 18:05:41,326 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 18:05:41,326 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 18:05:41,326 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 18:05:41,350 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-07-17 18:05:41,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-17 18:05:41,363 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 18:05:41,365 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] [2020-07-17 18:05:41,366 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 18:05:41,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 18:05:41,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1445504148, now seen corresponding path program 1 times [2020-07-17 18:05:41,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 18:05:41,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1367812796] [2020-07-17 18:05:41,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 18:05:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:41,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 18:05:41,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1367812796] [2020-07-17 18:05:41,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 18:05:41,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 18:05:41,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45712671] [2020-07-17 18:05:41,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 18:05:41,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 18:05:41,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 18:05:41,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 18:05:41,834 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 5 states. [2020-07-17 18:05:42,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 18:05:42,553 INFO L93 Difference]: Finished difference Result 367 states and 432 transitions. [2020-07-17 18:05:42,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 18:05:42,555 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-17 18:05:42,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 18:05:42,567 INFO L225 Difference]: With dead ends: 367 [2020-07-17 18:05:42,567 INFO L226 Difference]: Without dead ends: 64 [2020-07-17 18:05:42,576 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 [2020-07-17 18:05:42,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-07-17 18:05:42,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 49. [2020-07-17 18:05:42,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-07-17 18:05:42,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2020-07-17 18:05:42,639 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 30 [2020-07-17 18:05:42,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 18:05:42,640 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2020-07-17 18:05:42,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 18:05:42,640 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2020-07-17 18:05:42,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-07-17 18:05:42,642 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 18:05:42,642 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] [2020-07-17 18:05:42,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 18:05:42,643 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 18:05:42,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 18:05:42,643 INFO L82 PathProgramCache]: Analyzing trace with hash -905808642, now seen corresponding path program 1 times [2020-07-17 18:05:42,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 18:05:42,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34862677] [2020-07-17 18:05:42,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 18:05:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:42,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 18:05:42,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34862677] [2020-07-17 18:05:42,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 18:05:42,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 18:05:42,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758545989] [2020-07-17 18:05:42,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 18:05:42,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 18:05:42,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 18:05:42,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 18:05:42,832 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand 5 states. [2020-07-17 18:05:43,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 18:05:43,084 INFO L93 Difference]: Finished difference Result 103 states and 111 transitions. [2020-07-17 18:05:43,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 18:05:43,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-07-17 18:05:43,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 18:05:43,096 INFO L225 Difference]: With dead ends: 103 [2020-07-17 18:05:43,096 INFO L226 Difference]: Without dead ends: 76 [2020-07-17 18:05:43,098 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 [2020-07-17 18:05:43,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-07-17 18:05:43,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 55. [2020-07-17 18:05:43,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-07-17 18:05:43,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2020-07-17 18:05:43,125 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 39 [2020-07-17 18:05:43,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 18:05:43,125 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2020-07-17 18:05:43,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 18:05:43,126 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2020-07-17 18:05:43,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-17 18:05:43,127 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 18:05:43,128 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] [2020-07-17 18:05:43,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 18:05:43,128 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 18:05:43,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 18:05:43,129 INFO L82 PathProgramCache]: Analyzing trace with hash -361483259, now seen corresponding path program 1 times [2020-07-17 18:05:43,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 18:05:43,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146410481] [2020-07-17 18:05:43,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 18:05:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:43,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 18:05:43,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146410481] [2020-07-17 18:05:43,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 18:05:43,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 18:05:43,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670433115] [2020-07-17 18:05:43,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 18:05:43,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 18:05:43,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 18:05:43,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 18:05:43,259 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 6 states. [2020-07-17 18:05:43,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 18:05:43,603 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2020-07-17 18:05:43,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 18:05:43,604 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-07-17 18:05:43,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 18:05:43,607 INFO L225 Difference]: With dead ends: 77 [2020-07-17 18:05:43,607 INFO L226 Difference]: Without dead ends: 75 [2020-07-17 18:05:43,608 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 [2020-07-17 18:05:43,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-07-17 18:05:43,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2020-07-17 18:05:43,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-07-17 18:05:43,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2020-07-17 18:05:43,636 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 42 [2020-07-17 18:05:43,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 18:05:43,638 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2020-07-17 18:05:43,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 18:05:43,638 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2020-07-17 18:05:43,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-17 18:05:43,643 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 18:05:43,643 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] [2020-07-17 18:05:43,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 18:05:43,644 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 18:05:43,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 18:05:43,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1960696442, now seen corresponding path program 1 times [2020-07-17 18:05:43,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 18:05:43,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [602988957] [2020-07-17 18:05:43,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 18:05:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:43,847 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-17 18:05:43,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [602988957] [2020-07-17 18:05:43,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 18:05:43,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-07-17 18:05:43,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691149155] [2020-07-17 18:05:43,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 18:05:43,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 18:05:43,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 18:05:43,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-17 18:05:43,851 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand 7 states. [2020-07-17 18:05:44,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 18:05:44,129 INFO L93 Difference]: Finished difference Result 146 states and 157 transitions. [2020-07-17 18:05:44,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 18:05:44,130 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-07-17 18:05:44,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 18:05:44,135 INFO L225 Difference]: With dead ends: 146 [2020-07-17 18:05:44,136 INFO L226 Difference]: Without dead ends: 114 [2020-07-17 18:05:44,136 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 [2020-07-17 18:05:44,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-07-17 18:05:44,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 94. [2020-07-17 18:05:44,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-07-17 18:05:44,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2020-07-17 18:05:44,174 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 64 [2020-07-17 18:05:44,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 18:05:44,176 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2020-07-17 18:05:44,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 18:05:44,177 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2020-07-17 18:05:44,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-07-17 18:05:44,186 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 18:05:44,186 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] [2020-07-17 18:05:44,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 18:05:44,186 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 18:05:44,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 18:05:44,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1491522468, now seen corresponding path program 2 times [2020-07-17 18:05:44,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 18:05:44,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520065225] [2020-07-17 18:05:44,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 18:05:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:44,361 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 46 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-17 18:05:44,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520065225] [2020-07-17 18:05:44,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 18:05:44,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-17 18:05:44,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939381821] [2020-07-17 18:05:44,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 18:05:44,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 18:05:44,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 18:05:44,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-17 18:05:44,366 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand 9 states. [2020-07-17 18:05:44,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 18:05:44,733 INFO L93 Difference]: Finished difference Result 182 states and 196 transitions. [2020-07-17 18:05:44,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-17 18:05:44,734 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-07-17 18:05:44,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 18:05:44,736 INFO L225 Difference]: With dead ends: 182 [2020-07-17 18:05:44,736 INFO L226 Difference]: Without dead ends: 138 [2020-07-17 18:05:44,737 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 [2020-07-17 18:05:44,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-07-17 18:05:44,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 118. [2020-07-17 18:05:44,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-07-17 18:05:44,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 125 transitions. [2020-07-17 18:05:44,759 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 125 transitions. Word has length 82 [2020-07-17 18:05:44,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 18:05:44,759 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 125 transitions. [2020-07-17 18:05:44,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 18:05:44,760 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 125 transitions. [2020-07-17 18:05:44,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-07-17 18:05:44,761 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 18:05:44,761 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] [2020-07-17 18:05:44,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 18:05:44,762 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 18:05:44,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 18:05:44,762 INFO L82 PathProgramCache]: Analyzing trace with hash 2108507974, now seen corresponding path program 3 times [2020-07-17 18:05:44,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 18:05:44,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633554271] [2020-07-17 18:05:44,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 18:05:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:44,979 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 93 proven. 30 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-17 18:05:44,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633554271] [2020-07-17 18:05:44,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 18:05:44,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-07-17 18:05:44,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357399640] [2020-07-17 18:05:44,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 18:05:44,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 18:05:44,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 18:05:44,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-07-17 18:05:44,982 INFO L87 Difference]: Start difference. First operand 118 states and 125 transitions. Second operand 11 states. [2020-07-17 18:05:45,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 18:05:45,455 INFO L93 Difference]: Finished difference Result 218 states and 235 transitions. [2020-07-17 18:05:45,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-17 18:05:45,456 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-07-17 18:05:45,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 18:05:45,457 INFO L225 Difference]: With dead ends: 218 [2020-07-17 18:05:45,457 INFO L226 Difference]: Without dead ends: 162 [2020-07-17 18:05:45,458 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 [2020-07-17 18:05:45,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-07-17 18:05:45,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 142. [2020-07-17 18:05:45,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-07-17 18:05:45,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 151 transitions. [2020-07-17 18:05:45,482 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 151 transitions. Word has length 100 [2020-07-17 18:05:45,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 18:05:45,482 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 151 transitions. [2020-07-17 18:05:45,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 18:05:45,483 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 151 transitions. [2020-07-17 18:05:45,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-07-17 18:05:45,484 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 18:05:45,484 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] [2020-07-17 18:05:45,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 18:05:45,485 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 18:05:45,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 18:05:45,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1471539684, now seen corresponding path program 4 times [2020-07-17 18:05:45,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 18:05:45,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587222298] [2020-07-17 18:05:45,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 18:05:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:45,655 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 2 proven. 157 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-07-17 18:05:45,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587222298] [2020-07-17 18:05:45,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 18:05:45,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-17 18:05:45,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739167561] [2020-07-17 18:05:45,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 18:05:45,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 18:05:45,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 18:05:45,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 18:05:45,659 INFO L87 Difference]: Start difference. First operand 142 states and 151 transitions. Second operand 8 states. [2020-07-17 18:05:46,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 18:05:46,015 INFO L93 Difference]: Finished difference Result 208 states and 222 transitions. [2020-07-17 18:05:46,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-17 18:05:46,016 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 118 [2020-07-17 18:05:46,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 18:05:46,019 INFO L225 Difference]: With dead ends: 208 [2020-07-17 18:05:46,019 INFO L226 Difference]: Without dead ends: 206 [2020-07-17 18:05:46,020 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 [2020-07-17 18:05:46,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-07-17 18:05:46,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 203. [2020-07-17 18:05:46,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-17 18:05:46,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 217 transitions. [2020-07-17 18:05:46,065 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 217 transitions. Word has length 118 [2020-07-17 18:05:46,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 18:05:46,066 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 217 transitions. [2020-07-17 18:05:46,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 18:05:46,066 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 217 transitions. [2020-07-17 18:05:46,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-17 18:05:46,069 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 18:05:46,069 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] [2020-07-17 18:05:46,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 18:05:46,070 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 18:05:46,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 18:05:46,070 INFO L82 PathProgramCache]: Analyzing trace with hash 2112155237, now seen corresponding path program 5 times [2020-07-17 18:05:46,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 18:05:46,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526035368] [2020-07-17 18:05:46,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 18:05:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:46,269 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 316 proven. 58 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2020-07-17 18:05:46,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526035368] [2020-07-17 18:05:46,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 18:05:46,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-07-17 18:05:46,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636504454] [2020-07-17 18:05:46,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-17 18:05:46,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 18:05:46,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-17 18:05:46,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-07-17 18:05:46,279 INFO L87 Difference]: Start difference. First operand 203 states and 217 transitions. Second operand 13 states. [2020-07-17 18:05:46,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 18:05:46,778 INFO L93 Difference]: Finished difference Result 398 states and 431 transitions. [2020-07-17 18:05:46,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-17 18:05:46,779 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 167 [2020-07-17 18:05:46,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 18:05:46,782 INFO L225 Difference]: With dead ends: 398 [2020-07-17 18:05:46,782 INFO L226 Difference]: Without dead ends: 269 [2020-07-17 18:05:46,784 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 [2020-07-17 18:05:46,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-07-17 18:05:46,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 239. [2020-07-17 18:05:46,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-07-17 18:05:46,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 256 transitions. [2020-07-17 18:05:46,846 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 256 transitions. Word has length 167 [2020-07-17 18:05:46,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 18:05:46,847 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 256 transitions. [2020-07-17 18:05:46,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-17 18:05:46,848 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 256 transitions. [2020-07-17 18:05:46,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-07-17 18:05:46,851 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 18:05:46,851 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] [2020-07-17 18:05:46,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 18:05:46,851 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 18:05:46,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 18:05:46,852 INFO L82 PathProgramCache]: Analyzing trace with hash 917121735, now seen corresponding path program 6 times [2020-07-17 18:05:46,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 18:05:46,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411218877] [2020-07-17 18:05:46,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 18:05:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:47,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 482 proven. 95 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2020-07-17 18:05:47,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411218877] [2020-07-17 18:05:47,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 18:05:47,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-07-17 18:05:47,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84479855] [2020-07-17 18:05:47,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-17 18:05:47,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 18:05:47,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-17 18:05:47,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2020-07-17 18:05:47,108 INFO L87 Difference]: Start difference. First operand 239 states and 256 transitions. Second operand 15 states. [2020-07-17 18:05:47,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 18:05:47,762 INFO L93 Difference]: Finished difference Result 428 states and 463 transitions. [2020-07-17 18:05:47,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-17 18:05:47,764 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 194 [2020-07-17 18:05:47,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 18:05:47,766 INFO L225 Difference]: With dead ends: 428 [2020-07-17 18:05:47,766 INFO L226 Difference]: Without dead ends: 275 [2020-07-17 18:05:47,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=293, Invalid=699, Unknown=0, NotChecked=0, Total=992 [2020-07-17 18:05:47,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-07-17 18:05:47,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2020-07-17 18:05:47,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-07-17 18:05:47,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 295 transitions. [2020-07-17 18:05:47,797 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 295 transitions. Word has length 194 [2020-07-17 18:05:47,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 18:05:47,797 INFO L479 AbstractCegarLoop]: Abstraction has 275 states and 295 transitions. [2020-07-17 18:05:47,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-17 18:05:47,798 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 295 transitions. [2020-07-17 18:05:47,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-07-17 18:05:47,800 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 18:05:47,801 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] [2020-07-17 18:05:47,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 18:05:47,801 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 18:05:47,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 18:05:47,802 INFO L82 PathProgramCache]: Analyzing trace with hash 374306853, now seen corresponding path program 7 times [2020-07-17 18:05:47,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 18:05:47,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466834951] [2020-07-17 18:05:47,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 18:05:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:48,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 746 proven. 80 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2020-07-17 18:05:48,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466834951] [2020-07-17 18:05:48,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 18:05:48,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-17 18:05:48,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112071833] [2020-07-17 18:05:48,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 18:05:48,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 18:05:48,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 18:05:48,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-17 18:05:48,044 INFO L87 Difference]: Start difference. First operand 275 states and 295 transitions. Second operand 9 states. [2020-07-17 18:05:48,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 18:05:48,590 INFO L93 Difference]: Finished difference Result 512 states and 545 transitions. [2020-07-17 18:05:48,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-17 18:05:48,591 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 221 [2020-07-17 18:05:48,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 18:05:48,594 INFO L225 Difference]: With dead ends: 512 [2020-07-17 18:05:48,595 INFO L226 Difference]: Without dead ends: 350 [2020-07-17 18:05:48,596 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 [2020-07-17 18:05:48,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-07-17 18:05:48,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 272. [2020-07-17 18:05:48,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-07-17 18:05:48,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 290 transitions. [2020-07-17 18:05:48,649 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 290 transitions. Word has length 221 [2020-07-17 18:05:48,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 18:05:48,649 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 290 transitions. [2020-07-17 18:05:48,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 18:05:48,650 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 290 transitions. [2020-07-17 18:05:48,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-07-17 18:05:48,653 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 18:05:48,653 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] [2020-07-17 18:05:48,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-17 18:05:48,656 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 18:05:48,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 18:05:48,657 INFO L82 PathProgramCache]: Analyzing trace with hash -368860214, now seen corresponding path program 8 times [2020-07-17 18:05:48,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 18:05:48,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128618565] [2020-07-17 18:05:48,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 18:05:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:05:48,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1461 backedges. 4 proven. 680 refuted. 0 times theorem prover too weak. 777 trivial. 0 not checked. [2020-07-17 18:05:48,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128618565] [2020-07-17 18:05:48,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-17 18:05:48,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-07-17 18:05:48,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867793728] [2020-07-17 18:05:48,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 18:05:48,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 18:05:48,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 18:05:48,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-17 18:05:48,909 INFO L87 Difference]: Start difference. First operand 272 states and 290 transitions. Second operand 7 states. [2020-07-17 18:05:49,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 18:05:49,179 INFO L93 Difference]: Finished difference Result 272 states and 290 transitions. [2020-07-17 18:05:49,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 18:05:49,180 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 224 [2020-07-17 18:05:49,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 18:05:49,181 INFO L225 Difference]: With dead ends: 272 [2020-07-17 18:05:49,181 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 18:05:49,182 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 [2020-07-17 18:05:49,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 18:05:49,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 18:05:49,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 18:05:49,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 18:05:49,183 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 224 [2020-07-17 18:05:49,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 18:05:49,184 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 18:05:49,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 18:05:49,184 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 18:05:49,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 18:05:49,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-17 18:05:49,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 18:05:49,589 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 35 [2020-07-17 18:05:49,704 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 35 [2020-07-17 18:05:51,168 INFO L271 CegarLoopResult]: At program point L118(line 118) the Hoare annotation is: true [2020-07-17 18:05:51,169 INFO L271 CegarLoopResult]: At program point L118-1(line 118) the Hoare annotation is: true [2020-07-17 18:05:51,169 INFO L271 CegarLoopResult]: At program point L118-2(line 118) the Hoare annotation is: true [2020-07-17 18:05:51,169 INFO L271 CegarLoopResult]: At program point L118-3(line 118) the Hoare annotation is: true [2020-07-17 18:05:51,169 INFO L271 CegarLoopResult]: At program point L118-4(line 118) the Hoare annotation is: true [2020-07-17 18:05:51,170 INFO L271 CegarLoopResult]: At program point L118-5(line 118) the Hoare annotation is: true [2020-07-17 18:05:51,170 INFO L271 CegarLoopResult]: At program point L118-6(line 118) the Hoare annotation is: true [2020-07-17 18:05:51,170 INFO L271 CegarLoopResult]: At program point L118-7(line 118) the Hoare annotation is: true [2020-07-17 18:05:51,170 INFO L271 CegarLoopResult]: At program point L135(line 135) the Hoare annotation is: true [2020-07-17 18:05:51,171 INFO L271 CegarLoopResult]: At program point L135-1(line 135) the Hoare annotation is: true [2020-07-17 18:05:51,171 INFO L271 CegarLoopResult]: At program point L119(line 119) the Hoare annotation is: true [2020-07-17 18:05:51,171 INFO L271 CegarLoopResult]: At program point L119-3(lines 119 126) the Hoare annotation is: true [2020-07-17 18:05:51,171 INFO L271 CegarLoopResult]: At program point L119-4(line 119) the Hoare annotation is: true [2020-07-17 18:05:51,171 INFO L271 CegarLoopResult]: At program point L119-5(line 119) the Hoare annotation is: true [2020-07-17 18:05:51,172 INFO L271 CegarLoopResult]: At program point L119-6(lines 119 126) the Hoare annotation is: true [2020-07-17 18:05:51,172 INFO L271 CegarLoopResult]: At program point L119-7(lines 119 126) the Hoare annotation is: true [2020-07-17 18:05:51,172 INFO L271 CegarLoopResult]: At program point L136(line 136) the Hoare annotation is: true [2020-07-17 18:05:51,172 INFO L271 CegarLoopResult]: At program point L136-3(line 136) the Hoare annotation is: true [2020-07-17 18:05:51,172 INFO L271 CegarLoopResult]: At program point L136-4(line 136) the Hoare annotation is: true [2020-07-17 18:05:51,172 INFO L271 CegarLoopResult]: At program point L136-5(lines 136 142) the Hoare annotation is: true [2020-07-17 18:05:51,173 INFO L271 CegarLoopResult]: At program point L136-6(lines 136 142) the Hoare annotation is: true [2020-07-17 18:05:51,173 INFO L271 CegarLoopResult]: At program point ludcmpEXIT(lines 109 153) the Hoare annotation is: true [2020-07-17 18:05:51,173 INFO L264 CegarLoopResult]: At program point ludcmpENTRY(lines 109 153) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,173 INFO L271 CegarLoopResult]: At program point L121(line 121) the Hoare annotation is: true [2020-07-17 18:05:51,173 INFO L271 CegarLoopResult]: At program point L121-1(line 121) the Hoare annotation is: true [2020-07-17 18:05:51,173 INFO L271 CegarLoopResult]: At program point L121-2(line 121) the Hoare annotation is: true [2020-07-17 18:05:51,174 INFO L271 CegarLoopResult]: At program point L138(line 138) the Hoare annotation is: true [2020-07-17 18:05:51,174 INFO L271 CegarLoopResult]: At program point L138-1(line 138) the Hoare annotation is: true [2020-07-17 18:05:51,174 INFO L271 CegarLoopResult]: At program point L138-2(line 138) the Hoare annotation is: true [2020-07-17 18:05:51,174 INFO L271 CegarLoopResult]: At program point L122(lines 122 124) the Hoare annotation is: true [2020-07-17 18:05:51,174 INFO L271 CegarLoopResult]: At program point L122-1(lines 122 124) the Hoare annotation is: true [2020-07-17 18:05:51,174 INFO L271 CegarLoopResult]: At program point L139(line 139) the Hoare annotation is: true [2020-07-17 18:05:51,175 INFO L271 CegarLoopResult]: At program point L139-3(lines 139 140) the Hoare annotation is: true [2020-07-17 18:05:51,175 INFO L271 CegarLoopResult]: At program point L139-4(line 139) the Hoare annotation is: true [2020-07-17 18:05:51,175 INFO L271 CegarLoopResult]: At program point L139-5(line 139) the Hoare annotation is: true [2020-07-17 18:05:51,175 INFO L271 CegarLoopResult]: At program point L139-6(lines 139 140) the Hoare annotation is: true [2020-07-17 18:05:51,175 INFO L271 CegarLoopResult]: At program point L139-7(lines 139 140) the Hoare annotation is: true [2020-07-17 18:05:51,175 INFO L271 CegarLoopResult]: At program point L123(line 123) the Hoare annotation is: true [2020-07-17 18:05:51,176 INFO L271 CegarLoopResult]: At program point L123-3(lines 123 124) the Hoare annotation is: true [2020-07-17 18:05:51,176 INFO L271 CegarLoopResult]: At program point L123-4(line 123) the Hoare annotation is: true [2020-07-17 18:05:51,176 INFO L271 CegarLoopResult]: At program point L123-5(line 123) the Hoare annotation is: true [2020-07-17 18:05:51,176 INFO L271 CegarLoopResult]: At program point L123-6(lines 123 124) the Hoare annotation is: true [2020-07-17 18:05:51,176 INFO L271 CegarLoopResult]: At program point L140(line 140) the Hoare annotation is: true [2020-07-17 18:05:51,176 INFO L271 CegarLoopResult]: At program point L140-1(line 140) the Hoare annotation is: true [2020-07-17 18:05:51,177 INFO L271 CegarLoopResult]: At program point L140-2(line 140) the Hoare annotation is: true [2020-07-17 18:05:51,177 INFO L271 CegarLoopResult]: At program point L140-3(line 140) the Hoare annotation is: true [2020-07-17 18:05:51,177 INFO L271 CegarLoopResult]: At program point L140-4(line 140) the Hoare annotation is: true [2020-07-17 18:05:51,177 INFO L271 CegarLoopResult]: At program point L124(line 124) the Hoare annotation is: true [2020-07-17 18:05:51,177 INFO L271 CegarLoopResult]: At program point L124-1(line 124) the Hoare annotation is: true [2020-07-17 18:05:51,178 INFO L271 CegarLoopResult]: At program point L124-2(line 124) the Hoare annotation is: true [2020-07-17 18:05:51,178 INFO L271 CegarLoopResult]: At program point L124-3(line 124) the Hoare annotation is: true [2020-07-17 18:05:51,178 INFO L271 CegarLoopResult]: At program point L124-4(line 124) the Hoare annotation is: true [2020-07-17 18:05:51,178 INFO L271 CegarLoopResult]: At program point L141(lines 136 142) the Hoare annotation is: true [2020-07-17 18:05:51,178 INFO L271 CegarLoopResult]: At program point L125(line 125) the Hoare annotation is: true [2020-07-17 18:05:51,178 INFO L271 CegarLoopResult]: At program point L125-1(line 125) the Hoare annotation is: true [2020-07-17 18:05:51,179 INFO L264 CegarLoopResult]: At program point L109(lines 109 153) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,179 INFO L264 CegarLoopResult]: At program point L109-1(lines 109 153) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,179 INFO L271 CegarLoopResult]: At program point L143(line 143) the Hoare annotation is: true [2020-07-17 18:05:51,179 INFO L271 CegarLoopResult]: At program point L143-1(line 143) the Hoare annotation is: true [2020-07-17 18:05:51,179 INFO L271 CegarLoopResult]: At program point L143-2(line 143) the Hoare annotation is: true [2020-07-17 18:05:51,179 INFO L271 CegarLoopResult]: At program point L143-3(line 143) the Hoare annotation is: true [2020-07-17 18:05:51,180 INFO L271 CegarLoopResult]: At program point L127-2(line 127) the Hoare annotation is: true [2020-07-17 18:05:51,180 INFO L271 CegarLoopResult]: At program point L127-3(line 127) the Hoare annotation is: true [2020-07-17 18:05:51,180 INFO L271 CegarLoopResult]: At program point L127-4(lines 127 133) the Hoare annotation is: true [2020-07-17 18:05:51,180 INFO L271 CegarLoopResult]: At program point L144(line 144) the Hoare annotation is: true [2020-07-17 18:05:51,180 INFO L271 CegarLoopResult]: At program point L144-3(lines 144 150) the Hoare annotation is: true [2020-07-17 18:05:51,181 INFO L271 CegarLoopResult]: At program point L144-4(line 144) the Hoare annotation is: true [2020-07-17 18:05:51,181 INFO L271 CegarLoopResult]: At program point L144-5(line 144) the Hoare annotation is: true [2020-07-17 18:05:51,181 INFO L271 CegarLoopResult]: At program point L144-6(lines 144 150) the Hoare annotation is: true [2020-07-17 18:05:51,181 INFO L271 CegarLoopResult]: At program point L144-7(lines 144 150) the Hoare annotation is: true [2020-07-17 18:05:51,181 INFO L264 CegarLoopResult]: At program point L112(line 112) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,181 INFO L264 CegarLoopResult]: At program point L112-1(line 112) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,182 INFO L264 CegarLoopResult]: At program point L112-2(line 112) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,182 INFO L271 CegarLoopResult]: At program point L129(line 129) the Hoare annotation is: true [2020-07-17 18:05:51,182 INFO L271 CegarLoopResult]: At program point L129-1(line 129) the Hoare annotation is: true [2020-07-17 18:05:51,182 INFO L271 CegarLoopResult]: At program point L129-2(line 129) the Hoare annotation is: true [2020-07-17 18:05:51,182 INFO L271 CegarLoopResult]: At program point L146(line 146) the Hoare annotation is: true [2020-07-17 18:05:51,183 INFO L264 CegarLoopResult]: At program point L113(line 113) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,183 INFO L271 CegarLoopResult]: At program point L146-1(line 146) the Hoare annotation is: true [2020-07-17 18:05:51,183 INFO L264 CegarLoopResult]: At program point L113-1(line 113) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,183 INFO L271 CegarLoopResult]: At program point L146-2(line 146) the Hoare annotation is: true [2020-07-17 18:05:51,183 INFO L271 CegarLoopResult]: At program point L113-2(lines 110 153) the Hoare annotation is: true [2020-07-17 18:05:51,183 INFO L271 CegarLoopResult]: At program point L113-3(line 113) the Hoare annotation is: true [2020-07-17 18:05:51,184 INFO L271 CegarLoopResult]: At program point L113-4(line 113) the Hoare annotation is: true [2020-07-17 18:05:51,184 INFO L271 CegarLoopResult]: At program point L113-5(line 113) the Hoare annotation is: true [2020-07-17 18:05:51,184 INFO L271 CegarLoopResult]: At program point L113-6(line 113) the Hoare annotation is: true [2020-07-17 18:05:51,184 INFO L271 CegarLoopResult]: At program point L113-7(line 113) the Hoare annotation is: true [2020-07-17 18:05:51,184 INFO L271 CegarLoopResult]: At program point L113-8(line 113) the Hoare annotation is: true [2020-07-17 18:05:51,184 INFO L271 CegarLoopResult]: At program point ludcmpFINAL(lines 109 153) the Hoare annotation is: true [2020-07-17 18:05:51,184 INFO L271 CegarLoopResult]: At program point L130(line 130) the Hoare annotation is: true [2020-07-17 18:05:51,184 INFO L271 CegarLoopResult]: At program point L130-3(lines 130 131) the Hoare annotation is: true [2020-07-17 18:05:51,185 INFO L271 CegarLoopResult]: At program point L130-4(line 130) the Hoare annotation is: true [2020-07-17 18:05:51,185 INFO L271 CegarLoopResult]: At program point L130-5(line 130) the Hoare annotation is: true [2020-07-17 18:05:51,185 INFO L271 CegarLoopResult]: At program point L130-6(lines 130 131) the Hoare annotation is: true [2020-07-17 18:05:51,185 INFO L271 CegarLoopResult]: At program point L130-7(lines 130 131) the Hoare annotation is: true [2020-07-17 18:05:51,185 INFO L271 CegarLoopResult]: At program point L147(line 147) the Hoare annotation is: true [2020-07-17 18:05:51,185 INFO L271 CegarLoopResult]: At program point L147-3(lines 147 148) the Hoare annotation is: true [2020-07-17 18:05:51,186 INFO L271 CegarLoopResult]: At program point L147-4(line 147) the Hoare annotation is: true [2020-07-17 18:05:51,186 INFO L271 CegarLoopResult]: At program point L147-5(line 147) the Hoare annotation is: true [2020-07-17 18:05:51,186 INFO L271 CegarLoopResult]: At program point L147-6(lines 147 148) the Hoare annotation is: true [2020-07-17 18:05:51,186 INFO L271 CegarLoopResult]: At program point L147-7(lines 147 148) the Hoare annotation is: true [2020-07-17 18:05:51,186 INFO L271 CegarLoopResult]: At program point L131(line 131) the Hoare annotation is: true [2020-07-17 18:05:51,186 INFO L271 CegarLoopResult]: At program point L131-1(line 131) the Hoare annotation is: true [2020-07-17 18:05:51,187 INFO L271 CegarLoopResult]: At program point L131-2(line 131) the Hoare annotation is: true [2020-07-17 18:05:51,187 INFO L271 CegarLoopResult]: At program point L131-3(line 131) the Hoare annotation is: true [2020-07-17 18:05:51,187 INFO L271 CegarLoopResult]: At program point L131-4(line 131) the Hoare annotation is: true [2020-07-17 18:05:51,187 INFO L271 CegarLoopResult]: At program point L148(line 148) the Hoare annotation is: true [2020-07-17 18:05:51,187 INFO L271 CegarLoopResult]: At program point L115(line 115) the Hoare annotation is: true [2020-07-17 18:05:51,187 INFO L271 CegarLoopResult]: At program point L148-1(line 148) the Hoare annotation is: true [2020-07-17 18:05:51,188 INFO L271 CegarLoopResult]: At program point L148-2(line 148) the Hoare annotation is: true [2020-07-17 18:05:51,188 INFO L271 CegarLoopResult]: At program point L148-3(line 148) the Hoare annotation is: true [2020-07-17 18:05:51,188 INFO L271 CegarLoopResult]: At program point L148-4(line 148) the Hoare annotation is: true [2020-07-17 18:05:51,188 INFO L271 CegarLoopResult]: At program point L132(lines 127 133) the Hoare annotation is: true [2020-07-17 18:05:51,188 INFO L271 CegarLoopResult]: At program point L149(line 149) the Hoare annotation is: true [2020-07-17 18:05:51,188 INFO L271 CegarLoopResult]: At program point L116(line 116) the Hoare annotation is: true [2020-07-17 18:05:51,188 INFO L271 CegarLoopResult]: At program point L149-1(line 149) the Hoare annotation is: true [2020-07-17 18:05:51,189 INFO L271 CegarLoopResult]: At program point L116-3(lines 116 134) the Hoare annotation is: true [2020-07-17 18:05:51,189 INFO L271 CegarLoopResult]: At program point L116-4(line 116) the Hoare annotation is: true [2020-07-17 18:05:51,189 INFO L271 CegarLoopResult]: At program point L116-5(line 116) the Hoare annotation is: true [2020-07-17 18:05:51,189 INFO L271 CegarLoopResult]: At program point L116-6(lines 116 134) the Hoare annotation is: true [2020-07-17 18:05:51,189 INFO L271 CegarLoopResult]: At program point L116-7(lines 116 134) the Hoare annotation is: true [2020-07-17 18:05:51,189 INFO L271 CegarLoopResult]: At program point L69-4(line 69) the Hoare annotation is: true [2020-07-17 18:05:51,190 INFO L271 CegarLoopResult]: At program point L69-5(line 69) the Hoare annotation is: true [2020-07-17 18:05:51,190 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 18:05:51,190 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-17 18:05:51,190 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-17 18:05:51,190 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#a~0.base| |old(~#a~0.base)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#x~0.offset| |old(~#x~0.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,191 INFO L271 CegarLoopResult]: At program point L69(line 69) the Hoare annotation is: true [2020-07-17 18:05:51,191 INFO L271 CegarLoopResult]: At program point L69-1(line 69) the Hoare annotation is: true [2020-07-17 18:05:51,191 INFO L271 CegarLoopResult]: At program point L69-2(line 69) the Hoare annotation is: true [2020-07-17 18:05:51,191 INFO L271 CegarLoopResult]: At program point L69-3(line 69) the Hoare annotation is: true [2020-07-17 18:05:51,191 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-17 18:05:51,191 INFO L271 CegarLoopResult]: At program point L79(line 79) the Hoare annotation is: true [2020-07-17 18:05:51,191 INFO L271 CegarLoopResult]: At program point L78(lines 78 79) the Hoare annotation is: true [2020-07-17 18:05:51,192 INFO L271 CegarLoopResult]: At program point L78-1(line 78) the Hoare annotation is: true [2020-07-17 18:05:51,192 INFO L271 CegarLoopResult]: At program point L76(line 76) the Hoare annotation is: true [2020-07-17 18:05:51,192 INFO L271 CegarLoopResult]: At program point L78-3(lines 78 79) the Hoare annotation is: true [2020-07-17 18:05:51,192 INFO L271 CegarLoopResult]: At program point fabsEXIT(lines 74 81) the Hoare annotation is: true [2020-07-17 18:05:51,192 INFO L271 CegarLoopResult]: At program point fabsENTRY(lines 74 81) the Hoare annotation is: true [2020-07-17 18:05:51,192 INFO L271 CegarLoopResult]: At program point fabsFINAL(lines 74 81) the Hoare annotation is: true [2020-07-17 18:05:51,192 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-17 18:05:51,193 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 18:05:51,193 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 18:05:51,193 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-17 18:05:51,193 INFO L264 CegarLoopResult]: At program point L97(line 97) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5) (<= main_~j~0 main_~i~0) (<= main_~i~0 main_~j~0)) [2020-07-17 18:05:51,193 INFO L264 CegarLoopResult]: At program point L97-1(line 97) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5) (<= main_~j~0 main_~i~0) (<= main_~i~0 main_~j~0)) [2020-07-17 18:05:51,194 INFO L264 CegarLoopResult]: At program point L97-2(line 97) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5) (<= main_~j~0 main_~i~0) (<= main_~i~0 main_~j~0)) [2020-07-17 18:05:51,194 INFO L264 CegarLoopResult]: At program point L93(line 93) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5)) [2020-07-17 18:05:51,194 INFO L264 CegarLoopResult]: At program point L97-4(line 97) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~j~0 main_~n~0) (<= main_~i~0 5)) [2020-07-17 18:05:51,194 INFO L264 CegarLoopResult]: At program point L89(line 89) the Hoare annotation is: (and (<= main_~n~0 5) (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (<= 5 main_~n~0) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,194 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 83 107) the Hoare annotation is: (<= 5 main_~n~0) [2020-07-17 18:05:51,195 INFO L264 CegarLoopResult]: At program point L106(line 106) the Hoare annotation is: (<= 5 main_~n~0) [2020-07-17 18:05:51,195 INFO L264 CegarLoopResult]: At program point L98(line 98) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~j~0 main_~n~0) (<= main_~i~0 5)) [2020-07-17 18:05:51,195 INFO L264 CegarLoopResult]: At program point L98-1(line 98) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~j~0 main_~n~0) (<= main_~i~0 5)) [2020-07-17 18:05:51,195 INFO L264 CegarLoopResult]: At program point L94(line 94) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5)) [2020-07-17 18:05:51,195 INFO L264 CegarLoopResult]: At program point L94-3(lines 94 99) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~j~0 main_~n~0) (<= main_~i~0 5)) [2020-07-17 18:05:51,195 INFO L264 CegarLoopResult]: At program point L94-4(line 94) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~j~0 main_~n~0) (<= main_~i~0 5)) [2020-07-17 18:05:51,196 INFO L264 CegarLoopResult]: At program point L94-5(line 94) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5)) [2020-07-17 18:05:51,196 INFO L264 CegarLoopResult]: At program point L94-6(lines 94 99) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5)) [2020-07-17 18:05:51,196 INFO L264 CegarLoopResult]: At program point L94-7(lines 94 99) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5)) [2020-07-17 18:05:51,196 INFO L264 CegarLoopResult]: At program point L86(line 86) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,196 INFO L264 CegarLoopResult]: At program point L86-1(line 86) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,196 INFO L264 CegarLoopResult]: At program point L86-2(line 86) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,196 INFO L264 CegarLoopResult]: At program point L86-3(line 86) the Hoare annotation is: (and (<= main_~n~0 5) (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (<= 5 main_~n~0) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,197 INFO L264 CegarLoopResult]: At program point L91(line 91) the Hoare annotation is: (and (<= main_~n~0 5) (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (<= 5 main_~n~0) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,197 INFO L264 CegarLoopResult]: At program point L91-3(line 91) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5)) [2020-07-17 18:05:51,197 INFO L264 CegarLoopResult]: At program point L87(line 87) the Hoare annotation is: (and (<= main_~n~0 5) (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (<= 5 main_~n~0) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,197 INFO L264 CegarLoopResult]: At program point L91-4(line 91) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-07-17 18:05:51,197 INFO L264 CegarLoopResult]: At program point L87-1(line 87) the Hoare annotation is: (and (<= main_~n~0 5) (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (<= 5 main_~n~0) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,198 INFO L264 CegarLoopResult]: At program point L91-5(lines 91 102) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-07-17 18:05:51,198 INFO L264 CegarLoopResult]: At program point L91-6(lines 91 102) the Hoare annotation is: (<= 5 main_~n~0) [2020-07-17 18:05:51,198 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 83 107) the Hoare annotation is: (<= 5 main_~n~0) [2020-07-17 18:05:51,198 INFO L264 CegarLoopResult]: At program point L104(line 104) the Hoare annotation is: (<= 5 main_~n~0) [2020-07-17 18:05:51,198 INFO L264 CegarLoopResult]: At program point L104-1(line 104) the Hoare annotation is: (<= 5 main_~n~0) [2020-07-17 18:05:51,198 INFO L264 CegarLoopResult]: At program point L104-2(line 104) the Hoare annotation is: (<= 5 main_~n~0) [2020-07-17 18:05:51,198 INFO L264 CegarLoopResult]: At program point L100(line 100) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5)) [2020-07-17 18:05:51,199 INFO L264 CegarLoopResult]: At program point L96(line 96) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~j~0 main_~n~0) (<= main_~i~0 5)) [2020-07-17 18:05:51,199 INFO L264 CegarLoopResult]: At program point L96-1(lines 95 99) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~j~0 main_~n~0) (<= main_~i~0 5)) [2020-07-17 18:05:51,199 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 83 107) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 18:05:51,199 INFO L264 CegarLoopResult]: At program point L101(lines 91 102) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5)) [2020-07-17 18:05:51,199 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-07-17 18:05:51,200 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 3 8) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-17 18:05:51,200 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-17 18:05:51,200 INFO L264 CegarLoopResult]: At program point L4(lines 4 6) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-17 18:05:51,200 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-17 18:05:51,200 INFO L264 CegarLoopResult]: At program point L4-2(lines 3 8) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-17 18:05:51,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 06:05:51 BoogieIcfgContainer [2020-07-17 18:05:51,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 18:05:51,229 INFO L168 Benchmark]: Toolchain (without parser) took 11223.05 ms. Allocated memory was 138.4 MB in the beginning and 378.0 MB in the end (delta: 239.6 MB). Free memory was 102.9 MB in the beginning and 226.4 MB in the end (delta: -123.5 MB). Peak memory consumption was 212.8 MB. Max. memory is 7.1 GB. [2020-07-17 18:05:51,230 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 18:05:51,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.28 ms. Allocated memory was 138.4 MB in the beginning and 203.9 MB in the end (delta: 65.5 MB). Free memory was 102.5 MB in the beginning and 182.8 MB in the end (delta: -80.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-07-17 18:05:51,232 INFO L168 Benchmark]: Boogie Preprocessor took 81.18 ms. Allocated memory is still 203.9 MB. Free memory was 182.8 MB in the beginning and 179.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2020-07-17 18:05:51,233 INFO L168 Benchmark]: RCFGBuilder took 680.57 ms. Allocated memory is still 203.9 MB. Free memory was 179.7 MB in the beginning and 140.7 MB in the end (delta: 39.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 7.1 GB. [2020-07-17 18:05:51,234 INFO L168 Benchmark]: TraceAbstraction took 9987.84 ms. Allocated memory was 203.9 MB in the beginning and 378.0 MB in the end (delta: 174.1 MB). Free memory was 140.0 MB in the beginning and 226.4 MB in the end (delta: -86.4 MB). Peak memory consumption was 184.4 MB. Max. memory is 7.1 GB. [2020-07-17 18:05:51,237 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 466.28 ms. Allocated memory was 138.4 MB in the beginning and 203.9 MB in the end (delta: 65.5 MB). Free memory was 102.5 MB in the beginning and 182.8 MB in the end (delta: -80.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 81.18 ms. Allocated memory is still 203.9 MB. Free memory was 182.8 MB in the beginning and 179.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 680.57 ms. Allocated memory is still 203.9 MB. Free memory was 179.7 MB in the beginning and 140.7 MB in the end (delta: 39.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9987.84 ms. Allocated memory was 203.9 MB in the beginning and 378.0 MB in the end (delta: 174.1 MB). Free memory was 140.0 MB in the beginning and 226.4 MB in the end (delta: -86.4 MB). Peak memory consumption was 184.4 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: (n <= 5 && 5 <= n) && i <= 5 - 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: 0 == \old(cond) || !(0 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 186 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.8s, OverallIterations: 11, TraceHistogramMax: 18, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 588 SDtfs, 940 SDslu, 1239 SDs, 0 SdLazy, 2055 SolverSat, 106 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 213 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 2.3s 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, 654 HoareAnnotationTreeSize, 544 FomulaSimplifications, 126636 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 186 FomulaSimplificationsInter, 1689 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 1281 NumberOfCodeBlocks, 1281 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1270 ConstructedInterpolants, 0 QuantifiedInterpolants, 520474 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 4001/5113 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...