/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive/Ackermann03.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:25:28,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:25:28,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:25:28,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 00:25:28,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:25:28,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:25:28,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:25:28,847 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:25:28,872 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:25:28,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:25:28,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:25:28,878 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:25:28,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:25:28,878 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:25:28,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:25:28,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:25:28,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:25:28,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:25:28,880 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:25:28,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:25:28,881 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:25:28,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:25:28,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:25:28,882 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:25:28,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:25:28,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:25:28,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:25:28,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:25:28,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:25:28,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:25:28,883 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:25:29,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:25:29,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:25:29,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:25:29,323 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:25:29,324 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:25:29,325 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Ackermann03.c [2020-11-07 00:25:29,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a9a79f6c/da1b4ade9f79482f94b2308bf1b74e72/FLAG0fbd35db0 [2020-11-07 00:25:30,025 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:25:30,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/Ackermann03.c [2020-11-07 00:25:30,033 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a9a79f6c/da1b4ade9f79482f94b2308bf1b74e72/FLAG0fbd35db0 [2020-11-07 00:25:30,402 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a9a79f6c/da1b4ade9f79482f94b2308bf1b74e72 [2020-11-07 00:25:30,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:25:30,414 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:25:30,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:25:30,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:25:30,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:25:30,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:25:30" (1/1) ... [2020-11-07 00:25:30,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b84769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:30, skipping insertion in model container [2020-11-07 00:25:30,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:25:30" (1/1) ... [2020-11-07 00:25:30,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:25:30,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:25:30,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:25:30,637 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:25:30,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:25:30,672 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:25:30,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:30 WrapperNode [2020-11-07 00:25:30,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:25:30,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:25:30,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:25:30,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:25:30,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:30" (1/1) ... [2020-11-07 00:25:30,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:30" (1/1) ... [2020-11-07 00:25:30,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:30" (1/1) ... [2020-11-07 00:25:30,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:30" (1/1) ... [2020-11-07 00:25:30,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:30" (1/1) ... [2020-11-07 00:25:30,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:30" (1/1) ... [2020-11-07 00:25:30,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:30" (1/1) ... [2020-11-07 00:25:30,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:25:30,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:25:30,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:25:30,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:25:30,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:30" (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 [2020-11-07 00:25:30,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:25:30,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:25:30,831 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:25:30,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2020-11-07 00:25:30,831 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:25:30,831 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:25:30,831 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:25:30,832 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:25:30,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:25:30,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:25:30,832 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2020-11-07 00:25:30,832 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:25:30,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:25:30,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:25:30,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:25:30,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:25:30,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:25:30,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:25:31,107 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:25:31,107 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 00:25:31,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:25:31 BoogieIcfgContainer [2020-11-07 00:25:31,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:25:31,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:25:31,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:25:31,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:25:31,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:25:30" (1/3) ... [2020-11-07 00:25:31,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9f77d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:25:31, skipping insertion in model container [2020-11-07 00:25:31,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:30" (2/3) ... [2020-11-07 00:25:31,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9f77d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:25:31, skipping insertion in model container [2020-11-07 00:25:31,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:25:31" (3/3) ... [2020-11-07 00:25:31,135 INFO L111 eAbstractionObserver]: Analyzing ICFG Ackermann03.c [2020-11-07 00:25:31,182 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:25:31,193 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:25:31,228 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:25:31,271 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:25:31,271 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:25:31,271 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:25:31,272 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:25:31,272 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:25:31,272 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:25:31,272 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:25:31,272 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:25:31,289 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-11-07 00:25:31,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-07 00:25:31,300 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:31,301 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] [2020-11-07 00:25:31,302 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:31,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:31,309 INFO L82 PathProgramCache]: Analyzing trace with hash -946996355, now seen corresponding path program 1 times [2020-11-07 00:25:31,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:31,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247485485] [2020-11-07 00:25:31,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:31,397 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:31,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:31,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 00:25:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:31,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:25:31,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247485485] [2020-11-07 00:25:31,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:31,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:25:31,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567388487] [2020-11-07 00:25:31,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:25:31,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:31,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:25:31,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:25:31,733 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 6 states. [2020-11-07 00:25:32,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:32,276 INFO L93 Difference]: Finished difference Result 101 states and 124 transitions. [2020-11-07 00:25:32,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 00:25:32,278 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-11-07 00:25:32,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:32,290 INFO L225 Difference]: With dead ends: 101 [2020-11-07 00:25:32,290 INFO L226 Difference]: Without dead ends: 54 [2020-11-07 00:25:32,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:25:32,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-07 00:25:32,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-07 00:25:32,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-07 00:25:32,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2020-11-07 00:25:32,362 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 33 [2020-11-07 00:25:32,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:32,363 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2020-11-07 00:25:32,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:25:32,364 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2020-11-07 00:25:32,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-07 00:25:32,367 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:32,368 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:25:32,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:25:32,369 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:32,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:32,370 INFO L82 PathProgramCache]: Analyzing trace with hash 300807360, now seen corresponding path program 1 times [2020-11-07 00:25:32,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:32,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973030619] [2020-11-07 00:25:32,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:32,375 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:32,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:32,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 00:25:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:32,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:32,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-07 00:25:32,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973030619] [2020-11-07 00:25:32,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:32,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:25:32,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597041900] [2020-11-07 00:25:32,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:25:32,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:32,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:25:32,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:25:32,622 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand 6 states. [2020-11-07 00:25:32,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:32,988 INFO L93 Difference]: Finished difference Result 93 states and 118 transitions. [2020-11-07 00:25:32,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 00:25:32,989 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-11-07 00:25:32,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:32,992 INFO L225 Difference]: With dead ends: 93 [2020-11-07 00:25:32,992 INFO L226 Difference]: Without dead ends: 56 [2020-11-07 00:25:32,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:25:32,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-11-07 00:25:33,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-11-07 00:25:33,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-07 00:25:33,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2020-11-07 00:25:33,014 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 43 [2020-11-07 00:25:33,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:33,014 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2020-11-07 00:25:33,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:25:33,015 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2020-11-07 00:25:33,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-11-07 00:25:33,017 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:33,018 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:25:33,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:25:33,018 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:33,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:33,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1772464485, now seen corresponding path program 1 times [2020-11-07 00:25:33,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:33,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207101361] [2020-11-07 00:25:33,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:33,022 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:33,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:33,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 00:25:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:33,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:33,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:33,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:33,298 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-07 00:25:33,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207101361] [2020-11-07 00:25:33,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:33,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 00:25:33,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616479491] [2020-11-07 00:25:33,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 00:25:33,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:33,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 00:25:33,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:25:33,304 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand 7 states. [2020-11-07 00:25:33,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:33,750 INFO L93 Difference]: Finished difference Result 85 states and 107 transitions. [2020-11-07 00:25:33,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-07 00:25:33,751 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2020-11-07 00:25:33,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:33,755 INFO L225 Difference]: With dead ends: 85 [2020-11-07 00:25:33,755 INFO L226 Difference]: Without dead ends: 78 [2020-11-07 00:25:33,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 00:25:33,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-11-07 00:25:33,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-11-07 00:25:33,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-07 00:25:33,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2020-11-07 00:25:33,784 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 62 [2020-11-07 00:25:33,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:33,785 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2020-11-07 00:25:33,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 00:25:33,786 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2020-11-07 00:25:33,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-11-07 00:25:33,790 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:33,790 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 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] [2020-11-07 00:25:33,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:25:33,791 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:33,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:33,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1545390750, now seen corresponding path program 2 times [2020-11-07 00:25:33,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:33,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343506882] [2020-11-07 00:25:33,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:33,795 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:33,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:33,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 00:25:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:33,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:33,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:33,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:33,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:33,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:33,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:25:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:34,005 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-07 00:25:34,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1343506882] [2020-11-07 00:25:34,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:34,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 00:25:34,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027593146] [2020-11-07 00:25:34,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 00:25:34,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:34,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 00:25:34,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:25:34,008 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand 7 states. [2020-11-07 00:25:34,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:34,534 INFO L93 Difference]: Finished difference Result 117 states and 169 transitions. [2020-11-07 00:25:34,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-07 00:25:34,534 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-11-07 00:25:34,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:34,543 INFO L225 Difference]: With dead ends: 117 [2020-11-07 00:25:34,543 INFO L226 Difference]: Without dead ends: 110 [2020-11-07 00:25:34,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 00:25:34,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-11-07 00:25:34,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-11-07 00:25:34,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-11-07 00:25:34,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 162 transitions. [2020-11-07 00:25:34,603 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 162 transitions. Word has length 81 [2020-11-07 00:25:34,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:34,603 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 162 transitions. [2020-11-07 00:25:34,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 00:25:34,604 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 162 transitions. [2020-11-07 00:25:34,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-11-07 00:25:34,613 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:34,613 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 11, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2020-11-07 00:25:34,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:25:34,614 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:34,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:34,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1932765146, now seen corresponding path program 3 times [2020-11-07 00:25:34,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:34,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [60449557] [2020-11-07 00:25:34,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:34,619 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:34,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:34,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 00:25:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:34,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:34,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:34,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:34,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:34,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:35,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:35,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:35,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 00:25:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:35,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:35,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:35,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:35,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:35,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-11-07 00:25:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:35,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:35,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:35,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:35,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:35,274 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 36 proven. 107 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-11-07 00:25:35,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [60449557] [2020-11-07 00:25:35,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:35,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-07 00:25:35,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467310855] [2020-11-07 00:25:35,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 00:25:35,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:35,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 00:25:35,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:25:35,278 INFO L87 Difference]: Start difference. First operand 110 states and 162 transitions. Second operand 11 states. [2020-11-07 00:25:36,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:36,472 INFO L93 Difference]: Finished difference Result 230 states and 451 transitions. [2020-11-07 00:25:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:25:36,475 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 188 [2020-11-07 00:25:36,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:36,480 INFO L225 Difference]: With dead ends: 230 [2020-11-07 00:25:36,480 INFO L226 Difference]: Without dead ends: 126 [2020-11-07 00:25:36,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-11-07 00:25:36,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-11-07 00:25:36,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 125. [2020-11-07 00:25:36,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-07 00:25:36,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 176 transitions. [2020-11-07 00:25:36,532 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 176 transitions. Word has length 188 [2020-11-07 00:25:36,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:36,532 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 176 transitions. [2020-11-07 00:25:36,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 00:25:36,533 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 176 transitions. [2020-11-07 00:25:36,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-11-07 00:25:36,536 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:36,536 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-07 00:25:36,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:25:36,537 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:36,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:36,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1837059662, now seen corresponding path program 4 times [2020-11-07 00:25:36,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:36,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840801125] [2020-11-07 00:25:36,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:36,541 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:36,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:36,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 00:25:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:36,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:36,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:36,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:36,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:36,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:36,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:36,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 00:25:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:36,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:36,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-11-07 00:25:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:36,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:36,935 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-11-07 00:25:36,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840801125] [2020-11-07 00:25:36,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:36,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-11-07 00:25:36,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10194377] [2020-11-07 00:25:36,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-07 00:25:36,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:36,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-07 00:25:36,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-11-07 00:25:36,938 INFO L87 Difference]: Start difference. First operand 125 states and 176 transitions. Second operand 16 states. [2020-11-07 00:25:38,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:38,652 INFO L93 Difference]: Finished difference Result 265 states and 440 transitions. [2020-11-07 00:25:38,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-07 00:25:38,652 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 130 [2020-11-07 00:25:38,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:38,661 INFO L225 Difference]: With dead ends: 265 [2020-11-07 00:25:38,662 INFO L226 Difference]: Without dead ends: 165 [2020-11-07 00:25:38,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=397, Invalid=1325, Unknown=0, NotChecked=0, Total=1722 [2020-11-07 00:25:38,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-11-07 00:25:38,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 125. [2020-11-07 00:25:38,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-07 00:25:38,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 167 transitions. [2020-11-07 00:25:38,748 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 167 transitions. Word has length 130 [2020-11-07 00:25:38,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:38,750 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 167 transitions. [2020-11-07 00:25:38,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-07 00:25:38,750 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 167 transitions. [2020-11-07 00:25:38,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-11-07 00:25:38,754 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:38,754 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2020-11-07 00:25:38,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:25:38,755 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:38,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:38,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1924315322, now seen corresponding path program 5 times [2020-11-07 00:25:38,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:38,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [167332043] [2020-11-07 00:25:38,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:38,760 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:38,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:38,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 00:25:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:38,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:38,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:39,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 00:25:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-11-07 00:25:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,438 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-11-07 00:25:39,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [167332043] [2020-11-07 00:25:39,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:39,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-11-07 00:25:39,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799450972] [2020-11-07 00:25:39,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-07 00:25:39,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:39,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-07 00:25:39,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2020-11-07 00:25:39,442 INFO L87 Difference]: Start difference. First operand 125 states and 167 transitions. Second operand 17 states. [2020-11-07 00:25:41,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:41,948 INFO L93 Difference]: Finished difference Result 282 states and 452 transitions. [2020-11-07 00:25:41,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-11-07 00:25:41,948 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 168 [2020-11-07 00:25:41,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:41,952 INFO L225 Difference]: With dead ends: 282 [2020-11-07 00:25:41,953 INFO L226 Difference]: Without dead ends: 182 [2020-11-07 00:25:41,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=705, Invalid=2265, Unknown=0, NotChecked=0, Total=2970 [2020-11-07 00:25:41,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-11-07 00:25:42,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 138. [2020-11-07 00:25:42,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-11-07 00:25:42,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 182 transitions. [2020-11-07 00:25:42,010 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 182 transitions. Word has length 168 [2020-11-07 00:25:42,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:42,011 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 182 transitions. [2020-11-07 00:25:42,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-07 00:25:42,011 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 182 transitions. [2020-11-07 00:25:42,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-11-07 00:25:42,014 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:42,015 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 11, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 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] [2020-11-07 00:25:42,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 00:25:42,015 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:42,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:42,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1273104622, now seen corresponding path program 6 times [2020-11-07 00:25:42,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:42,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1131720430] [2020-11-07 00:25:42,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:42,019 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 00:25:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 00:25:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:25:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-07 00:25:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:25:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,584 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 82 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-11-07 00:25:42,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1131720430] [2020-11-07 00:25:42,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:42,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-11-07 00:25:42,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080632988] [2020-11-07 00:25:42,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-07 00:25:42,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:42,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-07 00:25:42,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2020-11-07 00:25:42,587 INFO L87 Difference]: Start difference. First operand 138 states and 182 transitions. Second operand 17 states. [2020-11-07 00:25:45,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:45,545 INFO L93 Difference]: Finished difference Result 330 states and 517 transitions. [2020-11-07 00:25:45,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-11-07 00:25:45,546 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 206 [2020-11-07 00:25:45,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:45,550 INFO L225 Difference]: With dead ends: 330 [2020-11-07 00:25:45,550 INFO L226 Difference]: Without dead ends: 206 [2020-11-07 00:25:45,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 933 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=889, Invalid=2893, Unknown=0, NotChecked=0, Total=3782 [2020-11-07 00:25:45,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-11-07 00:25:45,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 162. [2020-11-07 00:25:45,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-07 00:25:45,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 216 transitions. [2020-11-07 00:25:45,596 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 216 transitions. Word has length 206 [2020-11-07 00:25:45,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:45,597 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 216 transitions. [2020-11-07 00:25:45,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-07 00:25:45,597 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 216 transitions. [2020-11-07 00:25:45,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-11-07 00:25:45,600 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:45,601 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 13, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 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] [2020-11-07 00:25:45,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 00:25:45,601 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:45,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:45,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1904198470, now seen corresponding path program 7 times [2020-11-07 00:25:45,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:45,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067208737] [2020-11-07 00:25:45,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:45,606 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 00:25:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 00:25:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:25:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:25:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:25:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:25:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:25:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,384 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 67 proven. 69 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-11-07 00:25:46,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067208737] [2020-11-07 00:25:46,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:46,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-07 00:25:46,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321914898] [2020-11-07 00:25:46,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-07 00:25:46,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:46,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-07 00:25:46,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2020-11-07 00:25:46,387 INFO L87 Difference]: Start difference. First operand 162 states and 216 transitions. Second operand 23 states. [2020-11-07 00:25:51,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:51,852 INFO L93 Difference]: Finished difference Result 414 states and 647 transitions. [2020-11-07 00:25:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-11-07 00:25:51,852 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 244 [2020-11-07 00:25:51,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:51,859 INFO L225 Difference]: With dead ends: 414 [2020-11-07 00:25:51,859 INFO L226 Difference]: Without dead ends: 278 [2020-11-07 00:25:51,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2537 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1868, Invalid=7444, Unknown=0, NotChecked=0, Total=9312 [2020-11-07 00:25:51,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-11-07 00:25:51,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 198. [2020-11-07 00:25:51,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-11-07 00:25:51,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 276 transitions. [2020-11-07 00:25:51,936 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 276 transitions. Word has length 244 [2020-11-07 00:25:51,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:51,937 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 276 transitions. [2020-11-07 00:25:51,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-11-07 00:25:51,937 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 276 transitions. [2020-11-07 00:25:51,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-11-07 00:25:51,943 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:51,943 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 14, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 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] [2020-11-07 00:25:51,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 00:25:51,943 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:51,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:51,944 INFO L82 PathProgramCache]: Analyzing trace with hash 198340805, now seen corresponding path program 8 times [2020-11-07 00:25:51,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:51,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1730646327] [2020-11-07 00:25:51,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:51,948 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 00:25:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 00:25:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:25:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:25:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:25:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:25:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:25:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 00:25:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,935 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 75 proven. 81 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2020-11-07 00:25:52,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1730646327] [2020-11-07 00:25:52,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:52,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-11-07 00:25:52,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254427101] [2020-11-07 00:25:52,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-11-07 00:25:52,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:52,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-11-07 00:25:52,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2020-11-07 00:25:52,940 INFO L87 Difference]: Start difference. First operand 198 states and 276 transitions. Second operand 24 states. [2020-11-07 00:25:58,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:58,864 INFO L93 Difference]: Finished difference Result 486 states and 790 transitions. [2020-11-07 00:25:58,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2020-11-07 00:25:58,867 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 263 [2020-11-07 00:25:58,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:58,874 INFO L225 Difference]: With dead ends: 486 [2020-11-07 00:25:58,874 INFO L226 Difference]: Without dead ends: 314 [2020-11-07 00:25:58,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3120 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=2150, Invalid=8770, Unknown=0, NotChecked=0, Total=10920 [2020-11-07 00:25:58,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-11-07 00:25:58,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 222. [2020-11-07 00:25:58,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-11-07 00:25:58,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 318 transitions. [2020-11-07 00:25:58,946 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 318 transitions. Word has length 263 [2020-11-07 00:25:58,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:58,947 INFO L481 AbstractCegarLoop]: Abstraction has 222 states and 318 transitions. [2020-11-07 00:25:58,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-11-07 00:25:58,947 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 318 transitions. [2020-11-07 00:25:58,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-11-07 00:25:58,951 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:58,951 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 15, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 4, 4, 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] [2020-11-07 00:25:58,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 00:25:58,952 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:58,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:58,952 INFO L82 PathProgramCache]: Analyzing trace with hash 2013349288, now seen corresponding path program 9 times [2020-11-07 00:25:58,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:58,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1400078812] [2020-11-07 00:25:58,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:58,957 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 00:25:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 00:25:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:25:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:25:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:25:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:25:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:25:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:25:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 00:25:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 00:25:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:00,154 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2020-11-07 00:26:00,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1400078812] [2020-11-07 00:26:00,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:00,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-11-07 00:26:00,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678335931] [2020-11-07 00:26:00,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-11-07 00:26:00,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:00,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-11-07 00:26:00,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=598, Unknown=0, NotChecked=0, Total=650 [2020-11-07 00:26:00,157 INFO L87 Difference]: Start difference. First operand 222 states and 318 transitions. Second operand 26 states. [2020-11-07 00:26:04,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:04,675 INFO L93 Difference]: Finished difference Result 406 states and 595 transitions. [2020-11-07 00:26:04,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-11-07 00:26:04,675 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 282 [2020-11-07 00:26:04,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:04,682 INFO L225 Difference]: With dead ends: 406 [2020-11-07 00:26:04,682 INFO L226 Difference]: Without dead ends: 391 [2020-11-07 00:26:04,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=530, Invalid=5170, Unknown=0, NotChecked=0, Total=5700 [2020-11-07 00:26:04,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-11-07 00:26:04,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 293. [2020-11-07 00:26:04,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-11-07 00:26:04,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 448 transitions. [2020-11-07 00:26:04,770 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 448 transitions. Word has length 282 [2020-11-07 00:26:04,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:04,771 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 448 transitions. [2020-11-07 00:26:04,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-11-07 00:26:04,771 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 448 transitions. [2020-11-07 00:26:04,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-11-07 00:26:04,778 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:04,778 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 29, 16, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 4, 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] [2020-11-07 00:26:04,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-07 00:26:04,779 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:04,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:04,779 INFO L82 PathProgramCache]: Analyzing trace with hash 505206055, now seen corresponding path program 10 times [2020-11-07 00:26:04,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:04,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804594195] [2020-11-07 00:26:04,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:04,783 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:04,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:04,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 00:26:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:04,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:04,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 00:26:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:26:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:26:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:26:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:26:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:26:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 00:26:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 00:26:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:05,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-11-07 00:26:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,060 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 88 proven. 105 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-11-07 00:26:06,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804594195] [2020-11-07 00:26:06,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:06,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-11-07 00:26:06,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996407678] [2020-11-07 00:26:06,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-11-07 00:26:06,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:06,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-11-07 00:26:06,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2020-11-07 00:26:06,063 INFO L87 Difference]: Start difference. First operand 293 states and 448 transitions. Second operand 26 states. [2020-11-07 00:26:08,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:08,450 INFO L93 Difference]: Finished difference Result 716 states and 1270 transitions. [2020-11-07 00:26:08,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-11-07 00:26:08,452 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 301 [2020-11-07 00:26:08,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:08,462 INFO L225 Difference]: With dead ends: 716 [2020-11-07 00:26:08,462 INFO L226 Difference]: Without dead ends: 320 [2020-11-07 00:26:08,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 899 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=599, Invalid=2941, Unknown=0, NotChecked=0, Total=3540 [2020-11-07 00:26:08,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-11-07 00:26:08,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 288. [2020-11-07 00:26:08,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-11-07 00:26:08,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 429 transitions. [2020-11-07 00:26:08,560 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 429 transitions. Word has length 301 [2020-11-07 00:26:08,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:08,561 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 429 transitions. [2020-11-07 00:26:08,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-11-07 00:26:08,562 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 429 transitions. [2020-11-07 00:26:08,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-11-07 00:26:08,567 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:08,567 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 31, 17, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 4, 4, 4, 4, 4, 4, 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] [2020-11-07 00:26:08,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-07 00:26:08,568 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:08,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:08,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1837265288, now seen corresponding path program 11 times [2020-11-07 00:26:08,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:08,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863621391] [2020-11-07 00:26:08,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:08,573 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:08,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:08,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 00:26:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:08,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:08,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:08,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:08,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:08,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:08,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:08,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 00:26:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:08,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:08,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:26:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:26:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 00:26:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 00:26:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:26:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:26:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 00:26:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 00:26:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-11-07 00:26:09,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,453 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 1 proven. 173 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2020-11-07 00:26:09,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863621391] [2020-11-07 00:26:09,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:09,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-11-07 00:26:09,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775419398] [2020-11-07 00:26:09,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-11-07 00:26:09,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:09,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-11-07 00:26:09,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2020-11-07 00:26:09,456 INFO L87 Difference]: Start difference. First operand 288 states and 429 transitions. Second operand 19 states. [2020-11-07 00:26:11,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:11,070 INFO L93 Difference]: Finished difference Result 554 states and 904 transitions. [2020-11-07 00:26:11,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-07 00:26:11,071 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 320 [2020-11-07 00:26:11,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:11,077 INFO L225 Difference]: With dead ends: 554 [2020-11-07 00:26:11,077 INFO L226 Difference]: Without dead ends: 292 [2020-11-07 00:26:11,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=303, Invalid=1337, Unknown=0, NotChecked=0, Total=1640 [2020-11-07 00:26:11,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-11-07 00:26:11,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 288. [2020-11-07 00:26:11,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-11-07 00:26:11,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 425 transitions. [2020-11-07 00:26:11,160 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 425 transitions. Word has length 320 [2020-11-07 00:26:11,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:11,161 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 425 transitions. [2020-11-07 00:26:11,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-11-07 00:26:11,161 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 425 transitions. [2020-11-07 00:26:11,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2020-11-07 00:26:11,165 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:11,165 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 42, 23, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 5, 5, 5, 5, 5, 5, 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] [2020-11-07 00:26:11,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-07 00:26:11,166 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:11,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:11,166 INFO L82 PathProgramCache]: Analyzing trace with hash -261225010, now seen corresponding path program 12 times [2020-11-07 00:26:11,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:11,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993910046] [2020-11-07 00:26:11,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:11,172 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 00:26:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 00:26:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:26:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:26:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:26:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:26:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:26:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 00:26:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 00:26:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2020-11-07 00:26:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:26:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:26:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 00:26:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 00:26:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-11-07 00:26:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1257 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1256 trivial. 0 not checked. [2020-11-07 00:26:12,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993910046] [2020-11-07 00:26:12,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:12,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:26:12,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483961858] [2020-11-07 00:26:12,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:26:12,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:12,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:26:12,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:26:12,201 INFO L87 Difference]: Start difference. First operand 288 states and 425 transitions. Second operand 9 states. [2020-11-07 00:26:12,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:12,738 INFO L93 Difference]: Finished difference Result 295 states and 431 transitions. [2020-11-07 00:26:12,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 00:26:12,739 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 425 [2020-11-07 00:26:12,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:12,745 INFO L225 Difference]: With dead ends: 295 [2020-11-07 00:26:12,745 INFO L226 Difference]: Without dead ends: 288 [2020-11-07 00:26:12,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2020-11-07 00:26:12,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-11-07 00:26:12,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 264. [2020-11-07 00:26:12,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-11-07 00:26:12,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 369 transitions. [2020-11-07 00:26:12,834 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 369 transitions. Word has length 425 [2020-11-07 00:26:12,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:12,835 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 369 transitions. [2020-11-07 00:26:12,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:26:12,835 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 369 transitions. [2020-11-07 00:26:12,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2020-11-07 00:26:12,839 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:12,839 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 41, 23, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 6, 6, 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] [2020-11-07 00:26:12,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-07 00:26:12,840 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:12,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:12,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1933891612, now seen corresponding path program 13 times [2020-11-07 00:26:12,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:12,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1149413667] [2020-11-07 00:26:12,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:12,846 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 00:26:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 00:26:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:26:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:26:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:26:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:26:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:26:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 00:26:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-11-07 00:26:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:26:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:26:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 00:26:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 00:26:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-11-07 00:26:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:14,219 INFO L134 CoverageAnalysis]: Checked inductivity of 937 backedges. 44 proven. 229 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2020-11-07 00:26:14,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1149413667] [2020-11-07 00:26:14,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:14,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-11-07 00:26:14,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75372560] [2020-11-07 00:26:14,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-11-07 00:26:14,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:14,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-11-07 00:26:14,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2020-11-07 00:26:14,222 INFO L87 Difference]: Start difference. First operand 264 states and 369 transitions. Second operand 28 states. [2020-11-07 00:26:19,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:19,848 INFO L93 Difference]: Finished difference Result 538 states and 841 transitions. [2020-11-07 00:26:19,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2020-11-07 00:26:19,848 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 416 [2020-11-07 00:26:19,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:19,856 INFO L225 Difference]: With dead ends: 538 [2020-11-07 00:26:19,856 INFO L226 Difference]: Without dead ends: 280 [2020-11-07 00:26:19,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2263 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1861, Invalid=7645, Unknown=0, NotChecked=0, Total=9506 [2020-11-07 00:26:19,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-11-07 00:26:19,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 256. [2020-11-07 00:26:19,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-11-07 00:26:19,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 341 transitions. [2020-11-07 00:26:19,933 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 341 transitions. Word has length 416 [2020-11-07 00:26:19,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:19,934 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 341 transitions. [2020-11-07 00:26:19,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-11-07 00:26:19,934 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 341 transitions. [2020-11-07 00:26:19,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2020-11-07 00:26:19,938 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:19,938 INFO L422 BasicCegarLoop]: trace histogram [43, 43, 43, 24, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 6, 6, 6, 6, 6, 6, 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] [2020-11-07 00:26:19,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-07 00:26:19,938 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:19,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:19,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1814893477, now seen corresponding path program 14 times [2020-11-07 00:26:19,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:19,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1673425488] [2020-11-07 00:26:19,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:19,945 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 00:26:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-11-07 00:26:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:26:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:26:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:26:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:26:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:26:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 00:26:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 00:26:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2020-11-07 00:26:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-07 00:26:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:26:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-11-07 00:26:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-11-07 00:26:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 00:26:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-11-07 00:26:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:21,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 35 proven. 97 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2020-11-07 00:26:21,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1673425488] [2020-11-07 00:26:21,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:21,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-07 00:26:21,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875923994] [2020-11-07 00:26:21,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 00:26:21,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:21,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 00:26:21,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:26:21,091 INFO L87 Difference]: Start difference. First operand 256 states and 341 transitions. Second operand 11 states. [2020-11-07 00:26:21,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:21,890 INFO L93 Difference]: Finished difference Result 480 states and 706 transitions. [2020-11-07 00:26:21,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-07 00:26:21,891 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 435 [2020-11-07 00:26:21,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:21,894 INFO L225 Difference]: With dead ends: 480 [2020-11-07 00:26:21,894 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 00:26:21,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2020-11-07 00:26:21,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 00:26:21,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 00:26:21,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 00:26:21,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 00:26:21,904 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 435 [2020-11-07 00:26:21,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:21,904 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 00:26:21,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 00:26:21,904 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 00:26:21,904 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 00:26:21,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-07 00:26:21,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 00:26:26,880 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 98 [2020-11-07 00:26:27,022 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 79 [2020-11-07 00:26:27,407 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 105 [2020-11-07 00:26:30,334 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 105 [2020-11-07 00:26:30,607 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2020-11-07 00:26:30,876 WARN L194 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 129 [2020-11-07 00:26:31,066 WARN L194 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 121 [2020-11-07 00:26:31,349 WARN L194 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-11-07 00:26:31,572 WARN L194 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 103 [2020-11-07 00:26:31,758 WARN L194 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-11-07 00:26:32,073 WARN L194 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 148 [2020-11-07 00:26:32,203 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 115 [2020-11-07 00:26:32,618 WARN L194 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-11-07 00:26:33,030 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 105 [2020-11-07 00:26:33,407 WARN L194 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 136 [2020-11-07 00:26:33,742 WARN L194 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 129 [2020-11-07 00:26:34,038 WARN L194 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 114 [2020-11-07 00:26:34,241 WARN L194 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 129 [2020-11-07 00:26:34,344 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 95 [2020-11-07 00:26:34,669 WARN L194 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-11-07 00:26:35,081 WARN L194 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-11-07 00:26:35,344 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-11-07 00:26:35,554 WARN L194 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 136 [2020-11-07 00:26:35,730 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 116 [2020-11-07 00:26:35,843 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 105 [2020-11-07 00:26:36,318 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 117 [2020-11-07 00:26:36,518 WARN L194 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 137 [2020-11-07 00:26:36,661 WARN L194 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 117 [2020-11-07 00:26:36,804 WARN L194 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 117 [2020-11-07 00:26:37,062 WARN L194 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-11-07 00:26:37,246 WARN L194 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-11-07 00:26:37,405 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 118 [2020-11-07 00:26:37,700 WARN L194 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 148 [2020-11-07 00:26:37,984 WARN L194 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 159 [2020-11-07 00:26:38,250 WARN L194 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 137 [2020-11-07 00:26:38,429 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 114 [2020-11-07 00:26:38,597 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 114 [2020-11-07 00:26:38,727 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 114 [2020-11-07 00:26:38,975 WARN L194 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-11-07 00:26:39,110 WARN L194 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 125 [2020-11-07 00:26:39,264 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 105 [2020-11-07 00:26:39,368 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 105 [2020-11-07 00:26:39,659 WARN L194 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 148 [2020-11-07 00:26:39,894 WARN L194 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 137 [2020-11-07 00:26:40,166 WARN L194 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 117 [2020-11-07 00:26:40,528 WARN L194 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 117 [2020-11-07 00:26:40,693 WARN L194 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 117 [2020-11-07 00:26:40,855 WARN L194 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 117 [2020-11-07 00:26:41,307 WARN L194 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 117 [2020-11-07 00:26:41,516 WARN L194 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 137 [2020-11-07 00:26:41,766 WARN L194 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-11-07 00:26:42,017 WARN L194 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-11-07 00:26:42,153 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 116 [2020-11-07 00:26:42,503 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 105 [2020-11-07 00:26:43,001 WARN L194 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 129 [2020-11-07 00:26:43,195 WARN L194 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 121 [2020-11-07 00:26:43,479 WARN L194 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-11-07 00:26:43,700 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 103 [2020-11-07 00:26:43,895 WARN L194 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-11-07 00:26:44,180 WARN L194 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 148 [2020-11-07 00:26:44,310 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 115 [2020-11-07 00:26:44,707 WARN L194 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-11-07 00:26:45,124 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 105 [2020-11-07 00:26:45,481 WARN L194 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 136 [2020-11-07 00:26:45,809 WARN L194 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 129 [2020-11-07 00:26:46,099 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 114 [2020-11-07 00:26:46,304 WARN L194 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 129 [2020-11-07 00:26:46,406 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 95 [2020-11-07 00:26:46,508 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 109 [2020-11-07 00:26:46,726 WARN L194 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-11-07 00:26:47,145 WARN L194 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-11-07 00:26:47,392 WARN L194 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-11-07 00:26:47,604 WARN L194 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 136 [2020-11-07 00:26:47,783 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 116 [2020-11-07 00:26:47,895 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 105 [2020-11-07 00:26:48,362 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 117 [2020-11-07 00:26:48,571 WARN L194 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 137 [2020-11-07 00:26:48,720 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 117 [2020-11-07 00:26:48,857 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 117 [2020-11-07 00:26:49,125 WARN L194 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-11-07 00:26:49,306 WARN L194 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-11-07 00:26:49,468 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 118 [2020-11-07 00:26:49,777 WARN L194 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 148 [2020-11-07 00:26:50,064 WARN L194 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 159 [2020-11-07 00:26:50,328 WARN L194 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 137 [2020-11-07 00:26:50,504 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 114 [2020-11-07 00:26:50,669 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 114 [2020-11-07 00:26:50,799 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 114 [2020-11-07 00:26:51,049 WARN L194 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-11-07 00:26:51,185 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 125 [2020-11-07 00:26:51,338 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 105 [2020-11-07 00:26:51,443 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 105 [2020-11-07 00:26:51,733 WARN L194 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 148 [2020-11-07 00:26:51,942 WARN L194 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 137 [2020-11-07 00:26:52,207 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 117 [2020-11-07 00:26:52,569 WARN L194 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 117 [2020-11-07 00:26:52,730 WARN L194 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 117 [2020-11-07 00:26:52,891 WARN L194 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 117 [2020-11-07 00:26:53,322 WARN L194 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 117 [2020-11-07 00:26:53,525 WARN L194 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 137 [2020-11-07 00:26:53,784 WARN L194 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 131 [2020-11-07 00:26:54,033 WARN L194 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 147 [2020-11-07 00:26:54,173 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 116 [2020-11-07 00:26:54,618 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-11-07 00:26:54,827 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 106 [2020-11-07 00:26:55,252 WARN L194 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 160 [2020-11-07 00:26:55,630 WARN L194 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 160 [2020-11-07 00:26:55,988 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-11-07 00:26:56,519 WARN L194 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 169 [2020-11-07 00:26:56,782 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-11-07 00:26:57,168 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 175 [2020-11-07 00:26:57,411 WARN L194 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 135 [2020-11-07 00:26:57,893 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-11-07 00:26:58,359 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-11-07 00:26:58,851 WARN L194 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 165 [2020-11-07 00:26:59,291 WARN L194 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 160 [2020-11-07 00:26:59,546 WARN L194 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 130 [2020-11-07 00:26:59,743 WARN L194 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 133 [2020-11-07 00:27:00,018 WARN L194 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 160 [2020-11-07 00:27:00,226 WARN L194 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 133 [2020-11-07 00:27:00,344 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 116 [2020-11-07 00:27:00,656 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-11-07 00:27:00,758 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 105 [2020-11-07 00:27:01,192 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-11-07 00:27:01,526 WARN L194 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-11-07 00:27:01,855 WARN L194 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 165 [2020-11-07 00:27:02,051 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 123 [2020-11-07 00:27:02,190 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-11-07 00:27:02,771 WARN L194 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 138 [2020-11-07 00:27:03,116 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 180 [2020-11-07 00:27:03,328 WARN L194 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 138 [2020-11-07 00:27:03,539 WARN L194 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 138 [2020-11-07 00:27:03,892 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-11-07 00:27:04,164 WARN L194 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-11-07 00:27:04,410 WARN L194 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 146 [2020-11-07 00:27:04,795 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 175 [2020-11-07 00:27:05,368 WARN L194 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 210 [2020-11-07 00:27:05,779 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 180 [2020-11-07 00:27:06,016 WARN L194 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 133 [2020-11-07 00:27:06,240 WARN L194 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 133 [2020-11-07 00:27:06,435 WARN L194 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 133 [2020-11-07 00:27:06,775 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-11-07 00:27:07,029 WARN L194 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 171 [2020-11-07 00:27:07,216 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-11-07 00:27:07,351 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-11-07 00:27:07,743 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 175 [2020-11-07 00:27:08,092 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 180 [2020-11-07 00:27:08,458 WARN L194 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 138 [2020-11-07 00:27:08,943 WARN L194 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 147 [2020-11-07 00:27:09,218 WARN L194 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 147 [2020-11-07 00:27:09,486 WARN L194 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 147 [2020-11-07 00:27:09,760 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 114 [2020-11-07 00:27:10,089 WARN L194 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 147 [2020-11-07 00:27:10,444 WARN L194 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 180 [2020-11-07 00:27:10,788 WARN L194 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-11-07 00:27:11,129 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-11-07 00:27:11,292 WARN L194 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 122 [2020-11-07 00:27:11,708 WARN L194 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-11-07 00:27:11,926 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 106 [2020-11-07 00:27:12,354 WARN L194 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 160 [2020-11-07 00:27:12,729 WARN L194 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 160 [2020-11-07 00:27:13,100 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-11-07 00:27:13,629 WARN L194 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 169 [2020-11-07 00:27:13,898 WARN L194 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-11-07 00:27:14,279 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 175 [2020-11-07 00:27:14,524 WARN L194 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 135 [2020-11-07 00:27:15,019 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-11-07 00:27:15,501 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-11-07 00:27:16,000 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 165 [2020-11-07 00:27:16,424 WARN L194 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 160 [2020-11-07 00:27:16,681 WARN L194 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 130 [2020-11-07 00:27:16,875 WARN L194 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 133 [2020-11-07 00:27:17,164 WARN L194 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 160 [2020-11-07 00:27:17,370 WARN L194 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 133 [2020-11-07 00:27:17,483 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 116 [2020-11-07 00:27:17,802 WARN L194 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-11-07 00:27:18,321 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-11-07 00:27:18,656 WARN L194 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-11-07 00:27:18,986 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 165 [2020-11-07 00:27:19,189 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 123 [2020-11-07 00:27:19,329 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-11-07 00:27:19,492 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 117 [2020-11-07 00:27:19,924 WARN L194 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 138 [2020-11-07 00:27:20,284 WARN L194 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 180 [2020-11-07 00:27:20,503 WARN L194 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 138 [2020-11-07 00:27:20,725 WARN L194 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 138 [2020-11-07 00:27:21,088 WARN L194 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-11-07 00:27:21,354 WARN L194 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-11-07 00:27:21,592 WARN L194 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 146 [2020-11-07 00:27:21,978 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 175 [2020-11-07 00:27:22,580 WARN L194 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 210 [2020-11-07 00:27:22,981 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 180 [2020-11-07 00:27:23,221 WARN L194 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 133 [2020-11-07 00:27:23,440 WARN L194 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 133 [2020-11-07 00:27:23,623 WARN L194 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 133 [2020-11-07 00:27:23,955 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-11-07 00:27:24,209 WARN L194 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 171 [2020-11-07 00:27:24,396 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-11-07 00:27:24,534 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 123 [2020-11-07 00:27:24,919 WARN L194 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 175 [2020-11-07 00:27:25,275 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 180 [2020-11-07 00:27:25,632 WARN L194 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 138 [2020-11-07 00:27:26,113 WARN L194 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 147 [2020-11-07 00:27:26,366 WARN L194 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 147 [2020-11-07 00:27:26,622 WARN L194 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 147 [2020-11-07 00:27:26,879 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 114 [2020-11-07 00:27:27,211 WARN L194 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 147 [2020-11-07 00:27:27,564 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 180 [2020-11-07 00:27:27,900 WARN L194 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 145 [2020-11-07 00:27:28,233 WARN L194 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 173 [2020-11-07 00:27:28,390 WARN L194 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 122 [2020-11-07 00:27:28,706 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 141 [2020-11-07 00:27:28,810 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 94 [2020-11-07 00:27:28,972 WARN L194 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 148 [2020-11-07 00:27:29,138 WARN L194 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 116 [2020-11-07 00:27:29,345 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 154 [2020-11-07 00:27:29,601 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 148 [2020-11-07 00:27:29,987 WARN L194 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 141 [2020-11-07 00:27:30,208 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 141 [2020-11-07 00:27:30,542 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 148 [2020-11-07 00:27:30,694 WARN L194 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 148 [2020-11-07 00:27:31,384 WARN L194 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 154 [2020-11-07 00:27:31,543 WARN L194 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 112 [2020-11-07 00:27:31,867 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 148 [2020-11-07 00:27:32,150 WARN L194 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 154 [2020-11-07 00:27:32,844 WARN L194 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 148 [2020-11-07 00:27:33,500 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 129 [2020-11-07 00:27:33,602 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 98 [2020-11-07 00:27:33,759 WARN L194 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 139 [2020-11-07 00:27:33,904 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 107 [2020-11-07 00:27:34,092 WARN L194 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 142 [2020-11-07 00:27:34,332 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 139 [2020-11-07 00:27:34,689 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 129 [2020-11-07 00:27:34,906 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 129 [2020-11-07 00:27:35,232 WARN L194 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 139 [2020-11-07 00:27:35,392 WARN L194 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 139 [2020-11-07 00:27:36,018 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 142 [2020-11-07 00:27:36,176 WARN L194 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 117 [2020-11-07 00:27:36,479 WARN L194 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 139 [2020-11-07 00:27:36,734 WARN L194 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 142 [2020-11-07 00:27:37,624 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 139 [2020-11-07 00:27:40,740 WARN L194 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 12 [2020-11-07 00:27:41,219 WARN L194 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 30 [2020-11-07 00:27:41,700 WARN L194 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 30 [2020-11-07 00:27:41,849 WARN L194 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 1 [2020-11-07 00:27:42,425 WARN L194 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 38 [2020-11-07 00:27:42,705 WARN L194 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 10 [2020-11-07 00:27:42,809 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 18 [2020-11-07 00:27:43,088 WARN L194 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 7 [2020-11-07 00:27:43,191 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 14 [2020-11-07 00:27:46,582 WARN L194 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 230 DAG size of output: 76 [2020-11-07 00:27:46,850 WARN L194 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 10 [2020-11-07 00:27:50,870 WARN L194 SmtUtils]: Spent 4.00 s on a formula simplification. DAG size of input: 371 DAG size of output: 59 [2020-11-07 00:27:55,019 WARN L194 SmtUtils]: Spent 4.13 s on a formula simplification. DAG size of input: 371 DAG size of output: 59 [2020-11-07 00:28:02,921 WARN L194 SmtUtils]: Spent 7.88 s on a formula simplification. DAG size of input: 553 DAG size of output: 82 [2020-11-07 00:28:10,850 WARN L194 SmtUtils]: Spent 7.91 s on a formula simplification. DAG size of input: 553 DAG size of output: 82 [2020-11-07 00:28:15,138 WARN L194 SmtUtils]: Spent 4.27 s on a formula simplification. DAG size of input: 333 DAG size of output: 88 [2020-11-07 00:28:15,333 WARN L194 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 3 [2020-11-07 00:28:15,675 WARN L194 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 9 [2020-11-07 00:28:19,436 WARN L194 SmtUtils]: Spent 3.75 s on a formula simplification. DAG size of input: 287 DAG size of output: 75 [2020-11-07 00:28:22,580 WARN L194 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 230 DAG size of output: 76 [2020-11-07 00:28:22,588 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-11-07 00:28:22,588 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-07 00:28:22,588 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-11-07 00:28:22,588 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-11-07 00:28:22,589 INFO L269 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-11-07 00:28:22,589 INFO L269 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-11-07 00:28:22,589 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 00:28:22,589 INFO L269 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-11-07 00:28:22,589 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 00:28:22,589 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2020-11-07 00:28:22,589 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-11-07 00:28:22,589 INFO L269 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-11-07 00:28:22,590 INFO L269 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-11-07 00:28:22,590 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 00:28:22,590 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 00:28:22,590 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 00:28:22,590 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 00:28:22,590 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 00:28:22,590 INFO L269 CegarLoopResult]: At program point L29(lines 29 33) the Hoare annotation is: true [2020-11-07 00:28:22,590 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 27 47) the Hoare annotation is: true [2020-11-07 00:28:22,590 INFO L269 CegarLoopResult]: At program point mainFINAL(lines 27 47) the Hoare annotation is: true [2020-11-07 00:28:22,590 INFO L262 CegarLoopResult]: At program point L42(lines 42 46) the Hoare annotation is: (or (<= 3 main_~m~0) (and (< 6 main_~result~0) (<= main_~result~0 7)) (<= main_~m~0 1) (<= 3 main_~n~0) (<= main_~n~0 1)) [2020-11-07 00:28:22,591 INFO L269 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: true [2020-11-07 00:28:22,591 INFO L269 CegarLoopResult]: At program point L34-1(line 34) the Hoare annotation is: true [2020-11-07 00:28:22,591 INFO L269 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: true [2020-11-07 00:28:22,591 INFO L269 CegarLoopResult]: At program point L34-2(line 34) the Hoare annotation is: true [2020-11-07 00:28:22,591 INFO L269 CegarLoopResult]: At program point mainENTRY(lines 27 47) the Hoare annotation is: true [2020-11-07 00:28:22,591 INFO L269 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: true [2020-11-07 00:28:22,591 INFO L269 CegarLoopResult]: At program point L28-1(line 28) the Hoare annotation is: true [2020-11-07 00:28:22,591 INFO L262 CegarLoopResult]: At program point L45(line 45) the Hoare annotation is: false [2020-11-07 00:28:22,591 INFO L262 CegarLoopResult]: At program point L45-1(line 45) the Hoare annotation is: false [2020-11-07 00:28:22,591 INFO L269 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: true [2020-11-07 00:28:22,592 INFO L269 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: true [2020-11-07 00:28:22,592 INFO L262 CegarLoopResult]: At program point L41-1(line 41) the Hoare annotation is: (or (<= 3 main_~m~0) (and (<= 7 |main_#t~ret12|) (<= |main_#t~ret12| 7)) (<= main_~m~0 1) (<= 3 main_~n~0) (<= main_~n~0 1)) [2020-11-07 00:28:22,592 INFO L269 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: true [2020-11-07 00:28:22,592 INFO L262 CegarLoopResult]: At program point L41-2(line 41) the Hoare annotation is: (or (<= 3 main_~m~0) (and (<= 7 |main_#t~ret12|) (<= |main_#t~ret12| 7)) (<= main_~m~0 1) (<= 3 main_~n~0) (<= main_~n~0 1)) [2020-11-07 00:28:22,592 INFO L262 CegarLoopResult]: At program point L41-3(line 41) the Hoare annotation is: (or (<= 3 main_~m~0) (and (<= 7 |main_#t~ret12|) (<= |main_#t~ret12| 7) (< 6 main_~result~0) (<= main_~result~0 7)) (<= main_~m~0 1) (<= 3 main_~n~0) (<= main_~n~0 1)) [2020-11-07 00:28:22,592 INFO L269 CegarLoopResult]: At program point L35(lines 35 40) the Hoare annotation is: true [2020-11-07 00:28:22,593 INFO L262 CegarLoopResult]: At program point ackermannEXIT(lines 16 24) the Hoare annotation is: (let ((.cse3 (= ackermann_~n |ackermann_#in~n|)) (.cse5 (= ackermann_~m |ackermann_#in~m|)) (.cse18 (= |ackermann_#in~m| 0))) (let ((.cse0 (<= |ackermann_#in~m| 1)) (.cse4 (<= 1 |ackermann_#in~m|)) (.cse10 (= |ackermann_#in~n| 0)) (.cse6 (<= |ackermann_#res| 3)) (.cse7 (<= 5 |ackermann_#res|)) (.cse1 (<= 1 |ackermann_#in~n|)) (.cse12 (<= |ackermann_#res| 5)) (.cse11 (and .cse3 .cse5 .cse18)) (.cse16 (<= 3 ackermann_~m)) (.cse9 (<= |ackermann_#in~n| 1)) (.cse14 (<= 7 |ackermann_#res|)) (.cse15 (<= |ackermann_#res| 7)) (.cse8 (<= 2 |ackermann_#in~m|)) (.cse13 (<= 3 |ackermann_#in~n|))) (and (let ((.cse2 (<= 3 |ackermann_#res|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse7 .cse3 .cse5 .cse8) (not .cse9) (and .cse10 .cse2 .cse3 .cse5 .cse8) (and (<= 2 |ackermann_#res|) .cse0 .cse10 (<= |ackermann_#res| 2) .cse3 .cse5) .cse11)) (or .cse9 (not .cse0) (and (<= |ackermann_#in~n| 3) .cse12 .cse13 .cse7 .cse3 .cse5) (and .cse14 .cse15 (<= 5 |ackermann_#in~n|) .cse3 .cse5) (and (<= |ackermann_#res| 6) (<= 4 |ackermann_#in~n|) (<= 6 |ackermann_#res|) .cse3 .cse5 (<= |ackermann_#in~n| 4)) (and (<= 4 |ackermann_#res|) (<= |ackermann_#in~n| 2) .cse3 .cse5 (<= |ackermann_#res| 4)) (and (<= 6 |ackermann_#in~n|) .cse7 .cse3 .cse5) (not .cse4)) (or (and .cse16 .cse9 .cse7) (and .cse0 .cse4) (and .cse10 (<= |ackermann_#in~m| 2) .cse8 .cse6) (and (<= 2 |ackermann_#in~n|) .cse7 .cse3 .cse5 .cse8) (and .cse9 .cse1 .cse12) .cse11) (or .cse16 .cse9 (and .cse14 .cse15) (not .cse8) .cse13) (or (let ((.cse17 (+ |ackermann_#in~n| 1))) (and (<= .cse17 |ackermann_#res|) (<= |ackermann_#res| .cse17))) (not .cse18))))) [2020-11-07 00:28:22,593 INFO L262 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|) (not (= |ackermann_#in~m| 0))) [2020-11-07 00:28:22,593 INFO L262 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: (let ((.cse14 (<= 1 |ackermann_#in~m|)) (.cse13 (<= |ackermann_#in~m| 1))) (let ((.cse0 (<= |ackermann_#t~ret8| 5)) (.cse6 (not .cse13)) (.cse7 (not .cse14)) (.cse2 (<= |ackermann_#t~ret8| 3)) (.cse1 (<= 2 |ackermann_#in~n|)) (.cse5 (<= 5 |ackermann_#t~ret8|)) (.cse4 (<= 3 |ackermann_#in~n|))) (and (let ((.cse3 (<= 1 |ackermann_#in~n|))) (or (and .cse0 .cse1) (and .cse2 .cse3 (<= |ackermann_#in~m| 2)) .cse4 (and (<= 3 ackermann_~m) .cse3 .cse5))) (or .cse6 (<= 5 |ackermann_#in~n|) .cse0 .cse7) (or (and (<= 6 |ackermann_#t~ret8|) (<= |ackermann_#t~ret8| 6)) (<= 6 |ackermann_#in~n|) .cse6 .cse7 (<= |ackermann_#in~n| 4)) (let ((.cse9 (<= 3 |ackermann_#t~ret8|)) (.cse12 (<= 2 |ackermann_#in~m|)) (.cse8 (<= |ackermann_#in~n| 1)) (.cse10 (= ackermann_~n |ackermann_#in~n|)) (.cse11 (= ackermann_~m |ackermann_#in~m|))) (or (and .cse8 .cse9 .cse10 .cse11 .cse12) (and .cse13 .cse2 (<= |ackermann_#in~n| 2) .cse9 .cse1 .cse10 .cse11) (and .cse5 .cse10 .cse11 .cse12) (and .cse8 (<= |ackermann_#t~ret8| 2) .cse13 (<= 2 |ackermann_#t~ret8|) .cse11 .cse10) (and (<= 4 |ackermann_#in~n|) .cse10 .cse5 .cse11) (and .cse13 (<= |ackermann_#in~n| 3) (<= |ackermann_#t~ret8| 4) .cse4 (<= 4 |ackermann_#t~ret8|) .cse10 .cse11))) .cse14))) [2020-11-07 00:28:22,593 INFO L269 CegarLoopResult]: At program point ackermannENTRY(lines 16 24) the Hoare annotation is: true [2020-11-07 00:28:22,593 INFO L262 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (and (= |ackermann_#in~n| 0) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|) (not (= |ackermann_#in~m| 0))) [2020-11-07 00:28:22,594 INFO L262 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (let ((.cse14 (<= 1 |ackermann_#in~m|)) (.cse13 (<= |ackermann_#in~m| 1))) (let ((.cse0 (<= |ackermann_#t~ret8| 5)) (.cse6 (not .cse13)) (.cse7 (not .cse14)) (.cse2 (<= |ackermann_#t~ret8| 3)) (.cse1 (<= 2 |ackermann_#in~n|)) (.cse5 (<= 5 |ackermann_#t~ret8|)) (.cse4 (<= 3 |ackermann_#in~n|))) (and (let ((.cse3 (<= 1 |ackermann_#in~n|))) (or (and .cse0 .cse1) (and .cse2 .cse3 (<= |ackermann_#in~m| 2)) .cse4 (and (<= 3 ackermann_~m) .cse3 .cse5))) (or .cse6 (<= 5 |ackermann_#in~n|) .cse0 .cse7) (or (and (<= 6 |ackermann_#t~ret8|) (<= |ackermann_#t~ret8| 6)) (<= 6 |ackermann_#in~n|) .cse6 .cse7 (<= |ackermann_#in~n| 4)) (let ((.cse9 (<= 3 |ackermann_#t~ret8|)) (.cse12 (<= 2 |ackermann_#in~m|)) (.cse8 (<= |ackermann_#in~n| 1)) (.cse10 (= ackermann_~n |ackermann_#in~n|)) (.cse11 (= ackermann_~m |ackermann_#in~m|))) (or (and .cse8 .cse9 .cse10 .cse11 .cse12) (and .cse13 .cse2 (<= |ackermann_#in~n| 2) .cse9 .cse1 .cse10 .cse11) (and .cse5 .cse10 .cse11 .cse12) (and .cse8 (<= |ackermann_#t~ret8| 2) .cse13 (<= 2 |ackermann_#t~ret8|) .cse11 .cse10) (and (<= 4 |ackermann_#in~n|) .cse10 .cse5 .cse11) (and .cse13 (<= |ackermann_#in~n| 3) (<= |ackermann_#t~ret8| 4) .cse4 (<= 4 |ackermann_#t~ret8|) .cse10 .cse11))) .cse14))) [2020-11-07 00:28:22,594 INFO L262 CegarLoopResult]: At program point L20(lines 20 22) the Hoare annotation is: (and (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|) (not (= |ackermann_#in~m| 0))) [2020-11-07 00:28:22,594 INFO L262 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: (and (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse1 (= ackermann_~n |ackermann_#in~n|)) (.cse2 (= ackermann_~m |ackermann_#in~m|))) (or (and (<= |ackermann_#in~m| 1) .cse0 .cse1 (<= 2 |ackermann_#t~ret7|) (<= 1 |ackermann_#in~m|) .cse2) (and .cse0 .cse1 .cse2 (<= 3 |ackermann_#t~ret7|)))) (or (and (<= 3 ackermann_~m) (<= 5 |ackermann_#t~ret7|)) (and (<= |ackermann_#in~m| 2) (<= 2 |ackermann_#in~m|) (<= |ackermann_#t~ret7| 3)) (<= |ackermann_#t~ret7| 2))) [2020-11-07 00:28:22,594 INFO L262 CegarLoopResult]: At program point L23-3(line 23) the Hoare annotation is: (let ((.cse2 (<= 2 |ackermann_#in~m|)) (.cse3 (<= |ackermann_#in~m| 1))) (let ((.cse4 (<= 5 |ackermann_#t~ret8|)) (.cse10 (<= 3 |ackermann_#t~ret8|)) (.cse0 (= ackermann_~n |ackermann_#in~n|)) (.cse1 (= ackermann_~m |ackermann_#in~m|)) (.cse6 (<= 5 |ackermann_#t~ret9|)) (.cse12 (<= |ackermann_#t~ret9| 5)) (.cse15 (not .cse3)) (.cse16 (<= 4 |ackermann_#in~n|)) (.cse14 (<= 3 ackermann_~m)) (.cse9 (<= |ackermann_#in~n| 1)) (.cse7 (<= 7 |ackermann_#t~ret9|)) (.cse8 (<= |ackermann_#t~ret9| 7)) (.cse11 (not .cse2)) (.cse17 (<= 3 |ackermann_#in~n|))) (and (let ((.cse5 (<= 1 |ackermann_#in~m|))) (or (and .cse0 .cse1 .cse2) (and .cse3 (<= |ackermann_#t~ret9| 6) (<= |ackermann_#t~ret8| 5) (<= 6 |ackermann_#t~ret9|) .cse4 .cse5 (<= |ackermann_#in~n| 4)) (and (<= 6 |ackermann_#in~n|) .cse6 .cse4 .cse5) (and .cse3 (<= |ackermann_#in~n| 2) .cse5) (and .cse3 (<= |ackermann_#in~n| 3) (<= 4 |ackermann_#t~ret8|) .cse5) (and (<= 6 |ackermann_#t~ret8|) (<= 5 |ackermann_#in~n|) (<= |ackermann_#t~ret8| 6) .cse7 .cse5 .cse8))) (or (and .cse6 .cse4) (and .cse9 .cse10) .cse11) (let ((.cse13 (<= 1 |ackermann_#in~n|))) (or (and .cse6 .cse12 .cse13 (<= |ackermann_#in~m| 2)) (not .cse9) (and (<= |ackermann_#t~ret8| 2) (<= |ackermann_#t~ret9| 3)) (and .cse14 .cse6 .cse13 .cse4))) (or (= |ackermann_#in~n| 1) (and .cse10 .cse0 .cse1)) (or (and .cse9 (<= 2 |ackermann_#t~ret8|) (<= 3 |ackermann_#t~ret9|) .cse0 .cse1) .cse15 .cse16 (and (<= |ackermann_#t~ret8| 3) (<= 4 |ackermann_#t~ret9|)) (and .cse6 .cse12)) (or .cse15 (<= |ackermann_#t~ret9| 4) .cse16 (and (<= |ackermann_#t~ret8| 4) .cse17)) (or .cse14 .cse9 (and .cse7 .cse8) .cse11 .cse17)))) [2020-11-07 00:28:22,595 INFO L262 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: (and (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse1 (= ackermann_~n |ackermann_#in~n|)) (.cse2 (= ackermann_~m |ackermann_#in~m|))) (or (and (<= |ackermann_#in~m| 1) .cse0 .cse1 (<= 2 |ackermann_#t~ret7|) (<= 1 |ackermann_#in~m|) .cse2) (and .cse0 .cse1 .cse2 (<= 3 |ackermann_#t~ret7|)))) (or (and (<= 3 ackermann_~m) (<= 5 |ackermann_#t~ret7|)) (and (<= |ackermann_#in~m| 2) (<= 2 |ackermann_#in~m|) (<= |ackermann_#t~ret7| 3)) (<= |ackermann_#t~ret7| 2))) [2020-11-07 00:28:22,595 INFO L262 CegarLoopResult]: At program point L23-4(line 23) the Hoare annotation is: (let ((.cse2 (<= 2 |ackermann_#in~m|)) (.cse3 (<= |ackermann_#in~m| 1))) (let ((.cse4 (<= 5 |ackermann_#t~ret8|)) (.cse10 (<= 3 |ackermann_#t~ret8|)) (.cse0 (= ackermann_~n |ackermann_#in~n|)) (.cse1 (= ackermann_~m |ackermann_#in~m|)) (.cse6 (<= 5 |ackermann_#t~ret9|)) (.cse12 (<= |ackermann_#t~ret9| 5)) (.cse15 (not .cse3)) (.cse16 (<= 4 |ackermann_#in~n|)) (.cse14 (<= 3 ackermann_~m)) (.cse9 (<= |ackermann_#in~n| 1)) (.cse7 (<= 7 |ackermann_#t~ret9|)) (.cse8 (<= |ackermann_#t~ret9| 7)) (.cse11 (not .cse2)) (.cse17 (<= 3 |ackermann_#in~n|))) (and (let ((.cse5 (<= 1 |ackermann_#in~m|))) (or (and .cse0 .cse1 .cse2) (and .cse3 (<= |ackermann_#t~ret9| 6) (<= |ackermann_#t~ret8| 5) (<= 6 |ackermann_#t~ret9|) .cse4 .cse5 (<= |ackermann_#in~n| 4)) (and (<= 6 |ackermann_#in~n|) .cse6 .cse4 .cse5) (and .cse3 (<= |ackermann_#in~n| 2) .cse5) (and .cse3 (<= |ackermann_#in~n| 3) (<= 4 |ackermann_#t~ret8|) .cse5) (and (<= 6 |ackermann_#t~ret8|) (<= 5 |ackermann_#in~n|) (<= |ackermann_#t~ret8| 6) .cse7 .cse5 .cse8))) (or (and .cse6 .cse4) (and .cse9 .cse10) .cse11) (let ((.cse13 (<= 1 |ackermann_#in~n|))) (or (and .cse6 .cse12 .cse13 (<= |ackermann_#in~m| 2)) (not .cse9) (and (<= |ackermann_#t~ret8| 2) (<= |ackermann_#t~ret9| 3)) (and .cse14 .cse6 .cse13 .cse4))) (or (= |ackermann_#in~n| 1) (and .cse10 .cse0 .cse1)) (or (and .cse9 (<= 2 |ackermann_#t~ret8|) (<= 3 |ackermann_#t~ret9|) .cse0 .cse1) .cse15 .cse16 (and (<= |ackermann_#t~ret8| 3) (<= 4 |ackermann_#t~ret9|)) (and .cse6 .cse12)) (or .cse15 (<= |ackermann_#t~ret9| 4) .cse16 (and (<= |ackermann_#t~ret8| 4) .cse17)) (or .cse14 .cse9 (and .cse7 .cse8) .cse11 .cse17)))) [2020-11-07 00:28:22,595 INFO L262 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (= ackermann_~m |ackermann_#in~m|) (= ackermann_~n |ackermann_#in~n|) (= |ackermann_#in~m| 0)) [2020-11-07 00:28:22,595 INFO L262 CegarLoopResult]: At program point L21-3(line 21) the Hoare annotation is: (and (<= 2 |ackermann_#res|) (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse1 (= ackermann_~n |ackermann_#in~n|)) (.cse2 (= ackermann_~m |ackermann_#in~m|))) (or (and .cse0 (<= 5 |ackermann_#res|) .cse1 (<= 5 |ackermann_#t~ret7|) .cse2) (and (<= |ackermann_#in~m| 1) .cse0 .cse1 (<= 1 |ackermann_#in~m|) .cse2) (and .cse0 (<= |ackermann_#in~m| 2) (<= 3 |ackermann_#res|) .cse1 .cse2 (<= |ackermann_#t~ret7| 3) (<= 3 |ackermann_#t~ret7|)))) (or (<= 3 ackermann_~m) (and (<= |ackermann_#res| 2) (<= |ackermann_#t~ret7| 2)) (and (<= 2 |ackermann_#in~m|) (<= |ackermann_#res| 3))) (<= 2 |ackermann_#t~ret7|)) [2020-11-07 00:28:22,596 INFO L262 CegarLoopResult]: At program point L23-5(line 23) the Hoare annotation is: (let ((.cse16 (<= 2 |ackermann_#in~m|))) (let ((.cse7 (not .cse16)) (.cse9 (<= 5 |ackermann_#t~ret8|)) (.cse14 (<= |ackermann_#in~m| 1)) (.cse1 (<= |ackermann_#t~ret9| 5)) (.cse2 (<= |ackermann_#res| 5)) (.cse8 (<= 3 |ackermann_#in~n|)) (.cse3 (<= 7 |ackermann_#res|)) (.cse4 (<= |ackermann_#res| 7)) (.cse5 (<= 7 |ackermann_#t~ret9|)) (.cse6 (<= |ackermann_#t~ret9| 7)) (.cse0 (<= |ackermann_#in~n| 1)) (.cse10 (<= 5 |ackermann_#t~ret9|)) (.cse11 (<= 5 |ackermann_#res|))) (and (or (and .cse0 .cse1 .cse2 (<= |ackermann_#in~m| 2)) (and .cse3 .cse4 .cse5 (<= 2 |ackermann_#in~n|) .cse6) .cse7 .cse8 (and (<= 3 ackermann_~m) .cse9)) (or .cse0 .cse7 (and .cse10 .cse11 .cse9)) (let ((.cse12 (= ackermann_~n |ackermann_#in~n|)) (.cse13 (= ackermann_~m |ackermann_#in~m|))) (or (and .cse10 .cse11 .cse9 .cse12 .cse13) (and .cse0 .cse14 (<= 2 |ackermann_#t~ret8|) (<= 3 |ackermann_#t~ret9|) (<= 3 |ackermann_#res|) .cse12 .cse13) (and .cse10 (<= |ackermann_#in~n| 3) (<= 4 |ackermann_#t~ret8|) .cse11 .cse12 .cse13) (and (<= |ackermann_#in~n| 2) (<= 3 |ackermann_#t~ret8|) .cse12 .cse13))) (or .cse0 (<= 6 |ackermann_#in~n|) (not .cse14) (and (<= |ackermann_#res| 6) (<= 4 |ackermann_#in~n|) (<= |ackermann_#t~ret9| 6) (<= |ackermann_#t~ret8| 5) (<= 6 |ackermann_#t~ret9|) (<= 6 |ackermann_#res|) (<= |ackermann_#in~n| 4)) (and .cse1 .cse2 (<= |ackermann_#t~ret8| 4) .cse8) (and .cse3 (<= 6 |ackermann_#t~ret8|) (<= 5 |ackermann_#in~n|) .cse4 (<= |ackermann_#t~ret8| 6) .cse5 .cse6) (and (<= 4 |ackermann_#res|) (<= |ackermann_#t~ret8| 3) (<= |ackermann_#t~ret9| 4) (<= 4 |ackermann_#t~ret9|) (<= |ackermann_#res| 4))) (let ((.cse15 (<= 1 |ackermann_#in~n|))) (or (not .cse0) (and (<= |ackermann_#t~ret8| 2) .cse15 (<= |ackermann_#t~ret9| 3) (<= |ackermann_#res| 3)) (and .cse10 .cse15 .cse11 .cse16))) (<= 1 |ackermann_#in~m|)))) [2020-11-07 00:28:22,596 INFO L262 CegarLoopResult]: At program point L17(lines 17 19) the Hoare annotation is: (and (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|)) [2020-11-07 00:28:22,596 INFO L262 CegarLoopResult]: At program point L23-6(line 23) the Hoare annotation is: (let ((.cse11 (<= 5 |ackermann_#res|)) (.cse12 (<= 5 |ackermann_#t~ret8|)) (.cse2 (<= |ackermann_#in~m| 1)) (.cse3 (<= 7 |ackermann_#res|)) (.cse4 (<= |ackermann_#res| 7)) (.cse14 (<= 1 |ackermann_#in~m|)) (.cse15 (= ackermann_~m |ackermann_#in~m|)) (.cse13 (= ackermann_~n |ackermann_#in~n|))) (let ((.cse5 (<= 3 |ackermann_#in~n|)) (.cse6 (and .cse2 .cse3 (<= 6 |ackermann_#t~ret8|) (<= 5 |ackermann_#in~n|) .cse4 (<= |ackermann_#t~ret8| 6) .cse14 .cse15 .cse13)) (.cse9 (and (<= 6 |ackermann_#in~n|) .cse2 .cse11 .cse12 .cse13 .cse14 .cse15)) (.cse1 (<= |ackermann_#in~n| 1)) (.cse8 (<= 1 |ackermann_#in~n|)) (.cse10 (<= 2 |ackermann_#in~n|)) (.cse7 (<= |ackermann_#res| 5)) (.cse0 (<= 3 ackermann_~m))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4) .cse5) (or .cse6 (and .cse7 (<= |ackermann_#t~ret8| 4) .cse5) (and .cse1 .cse8 (<= |ackermann_#res| 3)) (not .cse2) .cse9 (and (<= |ackermann_#res| 6) (<= 4 |ackermann_#in~n|) (<= |ackermann_#t~ret8| 5) (<= 6 |ackermann_#res|)) (and (<= 4 |ackermann_#res|) (<= |ackermann_#t~ret8| 3) .cse10 (<= |ackermann_#res| 4))) (let ((.cse16 (<= 3 |ackermann_#t~ret8|))) (or .cse6 (and .cse11 .cse12 .cse13 .cse14 .cse15 (<= |ackermann_#in~n| 4)) (and .cse2 (<= |ackermann_#in~n| 2) .cse16 .cse13 .cse14 .cse15) (and .cse1 .cse16 .cse13 .cse15) .cse9 (and .cse1 .cse2 (<= 2 |ackermann_#t~ret8|) (<= 3 |ackermann_#res|) .cse13 .cse14 .cse15) (and .cse2 (<= |ackermann_#in~n| 3) (<= 4 |ackermann_#t~ret8|) .cse11 .cse13 .cse14 .cse15) (and .cse11 .cse12 .cse13 .cse15 (<= 2 |ackermann_#in~m|)))) (or (<= |ackermann_#t~ret8| 2) (not .cse1) (and .cse8 .cse11)) (or .cse10 (and .cse7 (<= |ackermann_#in~m| 2)) (and .cse0 .cse12))))) [2020-11-07 00:28:22,596 INFO L262 CegarLoopResult]: At program point L16(lines 16 24) the Hoare annotation is: (= ackermann_~m |ackermann_#in~m|) [2020-11-07 00:28:22,597 INFO L262 CegarLoopResult]: At program point ackermannFINAL(lines 16 24) the Hoare annotation is: (let ((.cse12 (= ackermann_~n |ackermann_#in~n|)) (.cse13 (= ackermann_~m |ackermann_#in~m|)) (.cse17 (= |ackermann_#in~m| 0))) (let ((.cse5 (<= |ackermann_#res| 5)) (.cse8 (<= 3 ackermann_~m)) (.cse1 (<= 7 |ackermann_#res|)) (.cse2 (<= |ackermann_#res| 7)) (.cse6 (<= 3 |ackermann_#in~n|)) (.cse7 (<= 1 |ackermann_#in~m|)) (.cse11 (<= |ackermann_#res| 3)) (.cse14 (<= 1 |ackermann_#in~n|)) (.cse4 (<= 5 |ackermann_#res|)) (.cse0 (<= |ackermann_#in~n| 1)) (.cse3 (<= |ackermann_#in~m| 1)) (.cse9 (= |ackermann_#in~n| 0)) (.cse10 (<= 2 |ackermann_#in~m|)) (.cse15 (and .cse12 .cse13 .cse17))) (and (or .cse0 (and .cse1 .cse2 (<= 5 |ackermann_#in~n|)) (not .cse3) (and (<= 6 |ackermann_#in~n|) .cse4) (and (<= |ackermann_#res| 6) (<= 4 |ackermann_#in~n|) (<= 6 |ackermann_#res|) (<= |ackermann_#in~n| 4)) (and (<= 4 |ackermann_#res|) (<= |ackermann_#in~n| 2) (<= |ackermann_#res| 4)) (and (<= |ackermann_#in~n| 3) .cse5 .cse6 .cse4) (not .cse7)) (or (and .cse8 .cse0 .cse4) (and .cse9 (<= |ackermann_#in~m| 2) .cse10 .cse11) (and (<= 2 |ackermann_#in~n|) .cse4 .cse12 .cse13 .cse10) (and .cse0 .cse14 .cse5) (and .cse3 .cse12 .cse7 .cse13) .cse15) (or .cse8 .cse0 (and .cse1 .cse2) (not .cse10) .cse6) (or (let ((.cse16 (+ |ackermann_#in~n| 1))) (and (<= .cse16 |ackermann_#res|) (<= |ackermann_#res| .cse16))) (not .cse17)) (let ((.cse18 (<= 3 |ackermann_#res|))) (or (and .cse3 .cse14 .cse18 .cse12 .cse7 .cse13 .cse11) (and .cse14 .cse4 .cse12 .cse13 .cse10) (not .cse0) (and (<= 2 |ackermann_#res|) .cse3 .cse9 (<= |ackermann_#res| 2)) (and .cse9 .cse18 .cse12 .cse13 .cse10) .cse15))))) [2020-11-07 00:28:22,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:28:22 BoogieIcfgContainer [2020-11-07 00:28:22,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:28:22,624 INFO L168 Benchmark]: Toolchain (without parser) took 172216.00 ms. Allocated memory was 159.4 MB in the beginning and 714.1 MB in the end (delta: 554.7 MB). Free memory was 116.8 MB in the beginning and 617.4 MB in the end (delta: -500.5 MB). Peak memory consumption was 423.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:28:22,624 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 159.4 MB. Free memory is still 133.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:28:22,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.52 ms. Allocated memory is still 159.4 MB. Free memory was 116.3 MB in the beginning and 107.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:28:22,625 INFO L168 Benchmark]: Boogie Preprocessor took 34.60 ms. Allocated memory is still 159.4 MB. Free memory was 107.0 MB in the beginning and 105.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:28:22,626 INFO L168 Benchmark]: RCFGBuilder took 399.75 ms. Allocated memory is still 159.4 MB. Free memory was 105.6 MB in the beginning and 129.6 MB in the end (delta: -24.0 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:28:22,626 INFO L168 Benchmark]: TraceAbstraction took 171509.33 ms. Allocated memory was 159.4 MB in the beginning and 714.1 MB in the end (delta: 554.7 MB). Free memory was 129.1 MB in the beginning and 617.4 MB in the end (delta: -488.3 MB). Peak memory consumption was 435.6 MB. Max. memory is 8.0 GB. [2020-11-07 00:28:22,628 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 159.4 MB. Free memory is still 133.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 252.52 ms. Allocated memory is still 159.4 MB. Free memory was 116.3 MB in the beginning and 107.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.60 ms. Allocated memory is still 159.4 MB. Free memory was 107.0 MB in the beginning and 105.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 399.75 ms. Allocated memory is still 159.4 MB. Free memory was 105.6 MB in the beginning and 129.6 MB in the end (delta: -24.0 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 171509.33 ms. Allocated memory was 159.4 MB in the beginning and 714.1 MB in the end (delta: 554.7 MB). Free memory was 129.1 MB in the beginning and 617.4 MB in the end (delta: -488.3 MB). Peak memory consumption was 435.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 16]: Procedure Contract for ackermann Derived contract for procedure ackermann: ((((((((((((((\old(m) <= 1 && 1 <= \old(n)) && 3 <= \result) && n == \old(n)) && 1 <= \old(m)) && m == \old(m)) && \result <= 3) || ((((1 <= \old(n) && 5 <= \result) && n == \old(n)) && m == \old(m)) && 2 <= \old(m))) || !(\old(n) <= 1)) || ((((\old(n) == 0 && 3 <= \result) && n == \old(n)) && m == \old(m)) && 2 <= \old(m))) || (((((2 <= \result && \old(m) <= 1) && \old(n) == 0) && \result <= 2) && n == \old(n)) && m == \old(m))) || ((n == \old(n) && m == \old(m)) && \old(m) == 0)) && (((((((\old(n) <= 1 || !(\old(m) <= 1)) || (((((\old(n) <= 3 && \result <= 5) && 3 <= \old(n)) && 5 <= \result) && n == \old(n)) && m == \old(m))) || ((((7 <= \result && \result <= 7) && 5 <= \old(n)) && n == \old(n)) && m == \old(m))) || (((((\result <= 6 && 4 <= \old(n)) && 6 <= \result) && n == \old(n)) && m == \old(m)) && \old(n) <= 4)) || ((((4 <= \result && \old(n) <= 2) && n == \old(n)) && m == \old(m)) && \result <= 4)) || (((6 <= \old(n) && 5 <= \result) && n == \old(n)) && m == \old(m))) || !(1 <= \old(m)))) && (((((((3 <= m && \old(n) <= 1) && 5 <= \result) || (\old(m) <= 1 && 1 <= \old(m))) || (((\old(n) == 0 && \old(m) <= 2) && 2 <= \old(m)) && \result <= 3)) || ((((2 <= \old(n) && 5 <= \result) && n == \old(n)) && m == \old(m)) && 2 <= \old(m))) || ((\old(n) <= 1 && 1 <= \old(n)) && \result <= 5)) || ((n == \old(n) && m == \old(m)) && \old(m) == 0))) && ((((3 <= m || \old(n) <= 1) || (7 <= \result && \result <= 7)) || !(2 <= \old(m))) || 3 <= \old(n))) && ((\old(n) + 1 <= \result && \result <= \old(n) + 1) || !(\old(m) == 0)) - ProcedureContractResult [Line: 27]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 50.6s, OverallIterations: 16, TraceHistogramMax: 43, AutomataDifference: 37.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 120.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 954 SDtfs, 2278 SDslu, 1833 SDs, 0 SdLazy, 11463 SolverSat, 1862 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1544 GetRequests, 839 SyntacticMatches, 0 SemanticMatches, 705 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12289 ImplicationChecksByTransitivity, 27.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=293occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 16 MinimizatonAttempts, 483 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 56 LocationsWithAnnotation, 4778 PreInvPairs, 24744 NumberOfFragments, 2342 HoareAnnotationTreeSize, 4778 FomulaSimplifications, 216975873 FormulaSimplificationTreeSizeReduction, 78.4s HoareSimplificationTime, 56 FomulaSimplificationsInter, 9742585 FormulaSimplificationTreeSizeReductionInter, 41.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...