/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:38:29,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:38:29,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:38:29,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 18:38:29,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:38:29,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:38:29,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:38:29,240 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 18:38:29,271 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:38:29,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:38:29,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:38:29,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:38:29,275 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:38:29,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:38:29,275 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:38:29,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:38:29,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:38:29,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:38:29,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:38:29,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:38:29,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:38:29,278 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:38:29,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:38:29,278 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:38:29,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:38:29,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:38:29,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:38:29,279 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:38:29,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:38:29,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:38:29,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:38:29,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:38:29,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:38:29,281 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:38:29,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:38:29,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:38:29,282 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:38:29,282 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:38:29,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:38:29,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:38:29,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:38:29,915 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:38:29,916 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:38:29,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label30.c [2020-10-23 18:38:30,040 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2ab3df0/83db8f65028f43df921279fee8e0e8d6/FLAG7b26fadee [2020-10-23 18:38:31,072 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:38:31,073 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label30.c [2020-10-23 18:38:31,097 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2ab3df0/83db8f65028f43df921279fee8e0e8d6/FLAG7b26fadee [2020-10-23 18:38:31,220 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2ab3df0/83db8f65028f43df921279fee8e0e8d6 [2020-10-23 18:38:31,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:38:31,235 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:38:31,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:38:31,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:38:31,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:38:31,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:38:31" (1/1) ... [2020-10-23 18:38:31,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ec79b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:31, skipping insertion in model container [2020-10-23 18:38:31,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:38:31" (1/1) ... [2020-10-23 18:38:31,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:38:31,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:38:31,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:38:31,876 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:38:32,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:38:32,152 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:38:32,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:32 WrapperNode [2020-10-23 18:38:32,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:38:32,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:38:32,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:38:32,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:38:32,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:32" (1/1) ... [2020-10-23 18:38:32,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:32" (1/1) ... [2020-10-23 18:38:32,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:32" (1/1) ... [2020-10-23 18:38:32,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:32" (1/1) ... [2020-10-23 18:38:32,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:32" (1/1) ... [2020-10-23 18:38:32,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:32" (1/1) ... [2020-10-23 18:38:32,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:32" (1/1) ... [2020-10-23 18:38:32,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:38:32,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:38:32,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:38:32,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:38:32,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:32" (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 [2020-10-23 18:38:32,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:38:32,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:38:32,452 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:38:32,453 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-23 18:38:32,453 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:38:32,453 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-23 18:38:32,454 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:38:32,454 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:38:32,454 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:38:32,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:38:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:38:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:38:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:38:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:38:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:38:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:38:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:38:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:38:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:38:34,450 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:38:34,451 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:38:34,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:38:34 BoogieIcfgContainer [2020-10-23 18:38:34,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:38:34,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:38:34,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:38:34,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:38:34,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:38:31" (1/3) ... [2020-10-23 18:38:34,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e5b048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:38:34, skipping insertion in model container [2020-10-23 18:38:34,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:38:32" (2/3) ... [2020-10-23 18:38:34,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e5b048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:38:34, skipping insertion in model container [2020-10-23 18:38:34,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:38:34" (3/3) ... [2020-10-23 18:38:34,465 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label30.c [2020-10-23 18:38:34,480 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:38:34,487 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:38:34,503 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:38:34,536 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:38:34,536 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:38:34,537 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:38:34,537 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:38:34,537 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:38:34,537 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:38:34,537 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:38:34,537 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:38:34,564 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-23 18:38:34,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-23 18:38:34,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:38:34,575 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:38:34,576 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:38:34,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:38:34,583 INFO L82 PathProgramCache]: Analyzing trace with hash -735346048, now seen corresponding path program 1 times [2020-10-23 18:38:34,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:38:34,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793583470] [2020-10-23 18:38:34,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:38:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:35,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:38:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:35,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:38:35,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793583470] [2020-10-23 18:38:35,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:38:35,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 18:38:35,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835790796] [2020-10-23 18:38:35,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:38:35,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:38:35,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:38:35,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 18:38:35,162 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 4 states. [2020-10-23 18:38:38,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:38:38,265 INFO L93 Difference]: Finished difference Result 719 states and 1262 transitions. [2020-10-23 18:38:38,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 18:38:38,268 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2020-10-23 18:38:38,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:38:38,291 INFO L225 Difference]: With dead ends: 719 [2020-10-23 18:38:38,292 INFO L226 Difference]: Without dead ends: 381 [2020-10-23 18:38:38,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:38:38,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-23 18:38:38,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 377. [2020-10-23 18:38:38,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-10-23 18:38:38,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 529 transitions. [2020-10-23 18:38:38,404 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 529 transitions. Word has length 50 [2020-10-23 18:38:38,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:38:38,405 INFO L481 AbstractCegarLoop]: Abstraction has 377 states and 529 transitions. [2020-10-23 18:38:38,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:38:38,405 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 529 transitions. [2020-10-23 18:38:38,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-23 18:38:38,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:38:38,413 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:38:38,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:38:38,415 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:38:38,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:38:38,416 INFO L82 PathProgramCache]: Analyzing trace with hash 915273904, now seen corresponding path program 1 times [2020-10-23 18:38:38,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:38:38,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060064525] [2020-10-23 18:38:38,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:38:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:38,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:38:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:38,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:38:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:38,863 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 41 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:38:38,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060064525] [2020-10-23 18:38:38,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538342932] [2020-10-23 18:38:38,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:38:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:38,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:38:39,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:38:39,126 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:38:39,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:38:39,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-10-23 18:38:39,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4909416] [2020-10-23 18:38:39,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:38:39,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:38:39,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:38:39,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:38:39,131 INFO L87 Difference]: Start difference. First operand 377 states and 529 transitions. Second operand 3 states. [2020-10-23 18:38:40,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:38:40,793 INFO L93 Difference]: Finished difference Result 1116 states and 1582 transitions. [2020-10-23 18:38:40,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:38:40,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-10-23 18:38:40,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:38:40,813 INFO L225 Difference]: With dead ends: 1116 [2020-10-23 18:38:40,813 INFO L226 Difference]: Without dead ends: 745 [2020-10-23 18:38:40,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:38:40,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2020-10-23 18:38:40,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 745. [2020-10-23 18:38:40,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2020-10-23 18:38:40,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 976 transitions. [2020-10-23 18:38:40,918 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 976 transitions. Word has length 133 [2020-10-23 18:38:40,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:38:40,921 INFO L481 AbstractCegarLoop]: Abstraction has 745 states and 976 transitions. [2020-10-23 18:38:40,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:38:40,921 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 976 transitions. [2020-10-23 18:38:40,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-23 18:38:40,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:38:40,935 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:38:41,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-10-23 18:38:41,152 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:38:41,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:38:41,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1138261352, now seen corresponding path program 1 times [2020-10-23 18:38:41,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:38:41,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991969677] [2020-10-23 18:38:41,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:38:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:41,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:38:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:41,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:38:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:41,463 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 41 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:38:41,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991969677] [2020-10-23 18:38:41,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452098916] [2020-10-23 18:38:41,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:38:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:41,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:38:41,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:38:41,700 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:38:41,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:38:41,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-10-23 18:38:41,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360404023] [2020-10-23 18:38:41,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:38:41,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:38:41,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:38:41,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:38:41,703 INFO L87 Difference]: Start difference. First operand 745 states and 976 transitions. Second operand 3 states. [2020-10-23 18:38:43,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:38:43,175 INFO L93 Difference]: Finished difference Result 1852 states and 2488 transitions. [2020-10-23 18:38:43,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:38:43,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2020-10-23 18:38:43,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:38:43,185 INFO L225 Difference]: With dead ends: 1852 [2020-10-23 18:38:43,186 INFO L226 Difference]: Without dead ends: 1113 [2020-10-23 18:38:43,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:38:43,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2020-10-23 18:38:43,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1113. [2020-10-23 18:38:43,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1113 states. [2020-10-23 18:38:43,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1426 transitions. [2020-10-23 18:38:43,261 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1426 transitions. Word has length 145 [2020-10-23 18:38:43,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:38:43,263 INFO L481 AbstractCegarLoop]: Abstraction has 1113 states and 1426 transitions. [2020-10-23 18:38:43,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:38:43,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1426 transitions. [2020-10-23 18:38:43,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 18:38:43,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:38:43,267 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:38:43,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:38:43,483 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:38:43,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:38:43,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1308130172, now seen corresponding path program 1 times [2020-10-23 18:38:43,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:38:43,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773046742] [2020-10-23 18:38:43,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:38:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:43,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:38:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:43,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:38:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:43,968 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:38:43,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773046742] [2020-10-23 18:38:43,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615556839] [2020-10-23 18:38:43,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:38:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:44,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:38:44,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:38:44,136 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:38:44,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:38:44,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2020-10-23 18:38:44,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335970410] [2020-10-23 18:38:44,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:38:44,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:38:44,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:38:44,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:38:44,140 INFO L87 Difference]: Start difference. First operand 1113 states and 1426 transitions. Second operand 3 states. [2020-10-23 18:38:45,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:38:45,407 INFO L93 Difference]: Finished difference Result 1850 states and 2448 transitions. [2020-10-23 18:38:45,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:38:45,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 18:38:45,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:38:45,422 INFO L225 Difference]: With dead ends: 1850 [2020-10-23 18:38:45,422 INFO L226 Difference]: Without dead ends: 1847 [2020-10-23 18:38:45,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:38:45,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2020-10-23 18:38:45,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1299. [2020-10-23 18:38:45,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1299 states. [2020-10-23 18:38:45,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1737 transitions. [2020-10-23 18:38:45,484 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1737 transitions. Word has length 159 [2020-10-23 18:38:45,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:38:45,485 INFO L481 AbstractCegarLoop]: Abstraction has 1299 states and 1737 transitions. [2020-10-23 18:38:45,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:38:45,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1737 transitions. [2020-10-23 18:38:45,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-10-23 18:38:45,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:38:45,490 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:38:45,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:38:45,706 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:38:45,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:38:45,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1371574492, now seen corresponding path program 1 times [2020-10-23 18:38:45,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:38:45,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430939523] [2020-10-23 18:38:45,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:38:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:45,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:38:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:45,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:38:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:45,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 18:38:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:46,129 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 161 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:38:46,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430939523] [2020-10-23 18:38:46,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340864219] [2020-10-23 18:38:46,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:38:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:46,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:38:46,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:38:46,504 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:38:46,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:38:46,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:38:46,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753409565] [2020-10-23 18:38:46,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:38:46,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:38:46,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:38:46,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:38:46,509 INFO L87 Difference]: Start difference. First operand 1299 states and 1737 transitions. Second operand 10 states. [2020-10-23 18:38:53,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:38:53,438 INFO L93 Difference]: Finished difference Result 4982 states and 7376 transitions. [2020-10-23 18:38:53,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 18:38:53,439 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 213 [2020-10-23 18:38:53,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:38:53,478 INFO L225 Difference]: With dead ends: 4982 [2020-10-23 18:38:53,478 INFO L226 Difference]: Without dead ends: 3303 [2020-10-23 18:38:53,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2020-10-23 18:38:53,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3303 states. [2020-10-23 18:38:53,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3303 to 2645. [2020-10-23 18:38:53,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2645 states. [2020-10-23 18:38:53,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 3432 transitions. [2020-10-23 18:38:53,677 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 3432 transitions. Word has length 213 [2020-10-23 18:38:53,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:38:53,678 INFO L481 AbstractCegarLoop]: Abstraction has 2645 states and 3432 transitions. [2020-10-23 18:38:53,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:38:53,678 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 3432 transitions. [2020-10-23 18:38:53,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-23 18:38:53,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:38:53,687 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:38:53,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:38:53,902 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:38:53,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:38:53,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1153428336, now seen corresponding path program 1 times [2020-10-23 18:38:53,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:38:53,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558095107] [2020-10-23 18:38:53,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:38:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:54,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:38:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:54,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:38:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:54,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-23 18:38:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:54,330 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:38:54,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558095107] [2020-10-23 18:38:54,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416107181] [2020-10-23 18:38:54,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:38:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:38:54,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:38:54,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:38:54,606 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:38:54,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:38:54,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:38:54,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847185409] [2020-10-23 18:38:54,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:38:54,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:38:54,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:38:54,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:38:54,610 INFO L87 Difference]: Start difference. First operand 2645 states and 3432 transitions. Second operand 10 states. [2020-10-23 18:39:01,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:39:01,125 INFO L93 Difference]: Finished difference Result 5182 states and 7054 transitions. [2020-10-23 18:39:01,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 18:39:01,126 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 239 [2020-10-23 18:39:01,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:39:01,145 INFO L225 Difference]: With dead ends: 5182 [2020-10-23 18:39:01,145 INFO L226 Difference]: Without dead ends: 2719 [2020-10-23 18:39:01,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 251 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2020-10-23 18:39:01,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2020-10-23 18:39:01,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2267. [2020-10-23 18:39:01,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2267 states. [2020-10-23 18:39:01,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2267 states to 2267 states and 2814 transitions. [2020-10-23 18:39:01,266 INFO L78 Accepts]: Start accepts. Automaton has 2267 states and 2814 transitions. Word has length 239 [2020-10-23 18:39:01,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:39:01,266 INFO L481 AbstractCegarLoop]: Abstraction has 2267 states and 2814 transitions. [2020-10-23 18:39:01,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:39:01,266 INFO L276 IsEmpty]: Start isEmpty. Operand 2267 states and 2814 transitions. [2020-10-23 18:39:01,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-23 18:39:01,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:39:01,273 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:39:01,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-23 18:39:01,488 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:39:01,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:39:01,489 INFO L82 PathProgramCache]: Analyzing trace with hash -536446480, now seen corresponding path program 1 times [2020-10-23 18:39:01,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:39:01,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432877296] [2020-10-23 18:39:01,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:39:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:01,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:39:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:01,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:39:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:01,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-23 18:39:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:01,892 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 158 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-23 18:39:01,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432877296] [2020-10-23 18:39:01,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412684376] [2020-10-23 18:39:01,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:02,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:39:02,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:39:02,221 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:39:02,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:39:02,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-10-23 18:39:02,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888891337] [2020-10-23 18:39:02,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:39:02,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:39:02,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:39:02,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:39:02,226 INFO L87 Difference]: Start difference. First operand 2267 states and 2814 transitions. Second operand 11 states. [2020-10-23 18:39:02,379 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-23 18:39:06,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:39:06,345 INFO L93 Difference]: Finished difference Result 3962 states and 5038 transitions. [2020-10-23 18:39:06,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 18:39:06,346 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 239 [2020-10-23 18:39:06,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:39:06,359 INFO L225 Difference]: With dead ends: 3962 [2020-10-23 18:39:06,360 INFO L226 Difference]: Without dead ends: 2079 [2020-10-23 18:39:06,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-10-23 18:39:06,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2020-10-23 18:39:06,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 2047. [2020-10-23 18:39:06,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2047 states. [2020-10-23 18:39:06,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2047 states to 2047 states and 2437 transitions. [2020-10-23 18:39:06,434 INFO L78 Accepts]: Start accepts. Automaton has 2047 states and 2437 transitions. Word has length 239 [2020-10-23 18:39:06,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:39:06,434 INFO L481 AbstractCegarLoop]: Abstraction has 2047 states and 2437 transitions. [2020-10-23 18:39:06,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:39:06,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2047 states and 2437 transitions. [2020-10-23 18:39:06,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-10-23 18:39:06,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:39:06,443 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:39:06,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:06,657 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:39:06,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:39:06,658 INFO L82 PathProgramCache]: Analyzing trace with hash -620955028, now seen corresponding path program 1 times [2020-10-23 18:39:06,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:39:06,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93243960] [2020-10-23 18:39:06,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:39:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:06,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:39:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:06,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:39:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:07,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-23 18:39:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:07,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-23 18:39:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:07,794 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 200 proven. 79 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-23 18:39:07,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93243960] [2020-10-23 18:39:07,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511938867] [2020-10-23 18:39:07,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:07,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:39:07,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:39:08,122 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-23 18:39:08,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:39:08,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2020-10-23 18:39:08,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867165443] [2020-10-23 18:39:08,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:39:08,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:39:08,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:39:08,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:39:08,126 INFO L87 Difference]: Start difference. First operand 2047 states and 2437 transitions. Second operand 3 states. [2020-10-23 18:39:09,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:39:09,404 INFO L93 Difference]: Finished difference Result 4648 states and 5635 transitions. [2020-10-23 18:39:09,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:39:09,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 315 [2020-10-23 18:39:09,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:39:09,419 INFO L225 Difference]: With dead ends: 4648 [2020-10-23 18:39:09,419 INFO L226 Difference]: Without dead ends: 2789 [2020-10-23 18:39:09,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 320 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:39:09,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2020-10-23 18:39:09,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 2417. [2020-10-23 18:39:09,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2417 states. [2020-10-23 18:39:09,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 2941 transitions. [2020-10-23 18:39:09,506 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 2941 transitions. Word has length 315 [2020-10-23 18:39:09,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:39:09,507 INFO L481 AbstractCegarLoop]: Abstraction has 2417 states and 2941 transitions. [2020-10-23 18:39:09,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:39:09,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 2941 transitions. [2020-10-23 18:39:09,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-10-23 18:39:09,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:39:09,516 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:39:09,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:09,730 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:39:09,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:39:09,730 INFO L82 PathProgramCache]: Analyzing trace with hash 2120622860, now seen corresponding path program 1 times [2020-10-23 18:39:09,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:39:09,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878857834] [2020-10-23 18:39:09,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:39:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:09,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:39:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:09,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:39:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:09,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-23 18:39:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:10,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-23 18:39:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:10,815 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 200 proven. 104 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-23 18:39:10,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878857834] [2020-10-23 18:39:10,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984351982] [2020-10-23 18:39:10,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:10,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:39:11,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:39:11,136 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-10-23 18:39:11,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:39:11,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2020-10-23 18:39:11,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85518939] [2020-10-23 18:39:11,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:39:11,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:39:11,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:39:11,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:39:11,139 INFO L87 Difference]: Start difference. First operand 2417 states and 2941 transitions. Second operand 3 states. [2020-10-23 18:39:12,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:39:12,493 INFO L93 Difference]: Finished difference Result 5202 states and 6447 transitions. [2020-10-23 18:39:12,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:39:12,494 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 340 [2020-10-23 18:39:12,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:39:12,508 INFO L225 Difference]: With dead ends: 5202 [2020-10-23 18:39:12,508 INFO L226 Difference]: Without dead ends: 2973 [2020-10-23 18:39:12,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 345 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:39:12,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2973 states. [2020-10-23 18:39:12,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2973 to 2603. [2020-10-23 18:39:12,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2603 states. [2020-10-23 18:39:12,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2603 states to 2603 states and 3312 transitions. [2020-10-23 18:39:12,592 INFO L78 Accepts]: Start accepts. Automaton has 2603 states and 3312 transitions. Word has length 340 [2020-10-23 18:39:12,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:39:12,593 INFO L481 AbstractCegarLoop]: Abstraction has 2603 states and 3312 transitions. [2020-10-23 18:39:12,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:39:12,593 INFO L276 IsEmpty]: Start isEmpty. Operand 2603 states and 3312 transitions. [2020-10-23 18:39:12,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-10-23 18:39:12,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:39:12,603 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:39:12,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-10-23 18:39:12,817 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:39:12,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:39:12,818 INFO L82 PathProgramCache]: Analyzing trace with hash -210043408, now seen corresponding path program 1 times [2020-10-23 18:39:12,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:39:12,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217194637] [2020-10-23 18:39:12,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:39:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:12,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:39:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:13,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:39:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:13,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-23 18:39:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:13,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-23 18:39:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:13,999 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 200 proven. 111 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-23 18:39:14,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217194637] [2020-10-23 18:39:14,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356554636] [2020-10-23 18:39:14,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:14,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:39:14,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:39:14,338 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-10-23 18:39:14,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:39:14,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2020-10-23 18:39:14,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370774882] [2020-10-23 18:39:14,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:39:14,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:39:14,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:39:14,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:39:14,343 INFO L87 Difference]: Start difference. First operand 2603 states and 3312 transitions. Second operand 3 states. [2020-10-23 18:39:15,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:39:15,422 INFO L93 Difference]: Finished difference Result 2974 states and 3704 transitions. [2020-10-23 18:39:15,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:39:15,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 354 [2020-10-23 18:39:15,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:39:15,437 INFO L225 Difference]: With dead ends: 2974 [2020-10-23 18:39:15,437 INFO L226 Difference]: Without dead ends: 2971 [2020-10-23 18:39:15,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 359 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:39:15,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2020-10-23 18:39:15,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 2603. [2020-10-23 18:39:15,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2603 states. [2020-10-23 18:39:15,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2603 states to 2603 states and 3311 transitions. [2020-10-23 18:39:15,510 INFO L78 Accepts]: Start accepts. Automaton has 2603 states and 3311 transitions. Word has length 354 [2020-10-23 18:39:15,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:39:15,511 INFO L481 AbstractCegarLoop]: Abstraction has 2603 states and 3311 transitions. [2020-10-23 18:39:15,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:39:15,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2603 states and 3311 transitions. [2020-10-23 18:39:15,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2020-10-23 18:39:15,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:39:15,521 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:39:15,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:15,735 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:39:15,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:39:15,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1263134036, now seen corresponding path program 1 times [2020-10-23 18:39:15,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:39:15,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493391586] [2020-10-23 18:39:15,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:39:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:15,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:39:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:15,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:39:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:15,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-23 18:39:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:16,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-23 18:39:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:16,810 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 200 proven. 111 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-23 18:39:16,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493391586] [2020-10-23 18:39:16,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699081395] [2020-10-23 18:39:16,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:39:16,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-23 18:39:17,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:39:17,176 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-10-23 18:39:17,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-23 18:39:17,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2020-10-23 18:39:17,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508250244] [2020-10-23 18:39:17,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:39:17,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:39:17,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:39:17,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:39:17,179 INFO L87 Difference]: Start difference. First operand 2603 states and 3311 transitions. Second operand 3 states. [2020-10-23 18:39:18,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:39:18,235 INFO L93 Difference]: Finished difference Result 2787 states and 3506 transitions. [2020-10-23 18:39:18,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:39:18,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 388 [2020-10-23 18:39:18,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:39:18,238 INFO L225 Difference]: With dead ends: 2787 [2020-10-23 18:39:18,238 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:39:18,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 393 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:39:18,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:39:18,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:39:18,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:39:18,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:39:18,246 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 388 [2020-10-23 18:39:18,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:39:18,247 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:39:18,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:39:18,247 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:39:18,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:39:18,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:39:18,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:39:18,663 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 117 [2020-10-23 18:39:18,829 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 94 [2020-10-23 18:39:18,986 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 97 [2020-10-23 18:39:19,371 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 117 [2020-10-23 18:39:19,711 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 24 [2020-10-23 18:39:20,934 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 185 DAG size of output: 35 [2020-10-23 18:39:21,171 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 24 [2020-10-23 18:39:21,591 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 22 [2020-10-23 18:39:21,597 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:39:21,597 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:39:21,597 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:39:21,597 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:39:21,598 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:39:21,598 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~inputA~0 |old(~inputA~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a15~0 |old(~a15~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string7.base| |old(#t~string7.base)|)) [2020-10-23 18:39:21,598 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:39:21,598 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-23 18:39:21,598 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-23 18:39:21,599 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-23 18:39:21,599 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-23 18:39:21,599 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-23 18:39:21,599 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-23 18:39:21,599 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-23 18:39:21,599 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,599 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,599 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,600 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-23 18:39:21,600 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-23 18:39:21,600 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-23 18:39:21,600 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-23 18:39:21,600 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-23 18:39:21,600 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-23 18:39:21,600 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-23 18:39:21,600 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-23 18:39:21,600 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,601 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,601 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,601 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-23 18:39:21,601 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-23 18:39:21,601 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-23 18:39:21,601 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-23 18:39:21,601 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-23 18:39:21,601 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-23 18:39:21,602 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-23 18:39:21,602 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-23 18:39:21,602 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,602 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,602 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,602 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-23 18:39:21,602 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-23 18:39:21,602 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-23 18:39:21,602 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-23 18:39:21,603 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-23 18:39:21,603 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-23 18:39:21,603 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-23 18:39:21,603 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-23 18:39:21,603 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-23 18:39:21,603 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,603 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,603 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,603 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-23 18:39:21,603 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-23 18:39:21,603 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-23 18:39:21,604 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-23 18:39:21,604 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-23 18:39:21,604 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-23 18:39:21,604 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-23 18:39:21,604 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,604 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,604 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,604 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-23 18:39:21,605 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-23 18:39:21,605 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-23 18:39:21,605 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-23 18:39:21,605 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-23 18:39:21,605 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,605 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-23 18:39:21,605 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-23 18:39:21,605 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-23 18:39:21,605 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-23 18:39:21,605 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,606 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,606 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,606 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-23 18:39:21,606 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-23 18:39:21,606 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-23 18:39:21,606 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-23 18:39:21,606 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-23 18:39:21,606 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-23 18:39:21,606 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-23 18:39:21,606 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-23 18:39:21,607 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,607 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,607 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,607 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-23 18:39:21,607 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-23 18:39:21,607 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-23 18:39:21,607 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-23 18:39:21,607 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-23 18:39:21,608 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-23 18:39:21,608 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-23 18:39:21,608 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-23 18:39:21,608 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,608 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,608 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,608 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-23 18:39:21,609 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 874) the Hoare annotation is: (let ((.cse0 (and (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a15~0 |old(~a15~0)|)))) (and (or .cse0 (not (<= |old(~a15~0)| 5))) (or (and (not (<= 8 |old(~a21~0)|)) (not (<= |old(~a21~0)| 6)) (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= 7 |old(~a15~0)|))) .cse0))) [2020-10-23 18:39:21,609 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-23 18:39:21,609 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-23 18:39:21,609 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-23 18:39:21,609 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-23 18:39:21,609 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-23 18:39:21,609 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-23 18:39:21,609 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-23 18:39:21,609 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,610 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,610 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,610 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-23 18:39:21,610 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-23 18:39:21,610 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-23 18:39:21,610 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-23 18:39:21,610 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-23 18:39:21,610 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-23 18:39:21,610 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-23 18:39:21,610 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-23 18:39:21,610 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,611 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,611 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,611 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-23 18:39:21,611 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-23 18:39:21,611 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-23 18:39:21,611 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-23 18:39:21,611 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-23 18:39:21,611 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-23 18:39:21,611 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-23 18:39:21,612 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-23 18:39:21,612 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,612 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,612 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,612 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-23 18:39:21,612 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-23 18:39:21,612 INFO L270 CegarLoopResult]: At program point L135(line 135) the Hoare annotation is: (and (not (<= 8 |old(~a21~0)|)) (not (<= |old(~a21~0)| 6)) (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= 7 |old(~a15~0)|)) (not (<= |old(~a15~0)| 5))) [2020-10-23 18:39:21,612 INFO L274 CegarLoopResult]: For program point L135-1(line 135) no Hoare annotation was computed. [2020-10-23 18:39:21,613 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-23 18:39:21,613 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-23 18:39:21,613 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-23 18:39:21,613 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-23 18:39:21,613 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-23 18:39:21,613 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,613 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,613 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,613 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-23 18:39:21,613 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-23 18:39:21,614 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-23 18:39:21,614 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-23 18:39:21,614 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-23 18:39:21,614 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-23 18:39:21,614 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-23 18:39:21,614 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-23 18:39:21,614 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,614 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,614 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-23 18:39:21,615 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-23 18:39:21,615 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-23 18:39:21,615 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-23 18:39:21,615 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-23 18:39:21,615 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-23 18:39:21,615 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-23 18:39:21,615 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-23 18:39:21,615 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,615 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,615 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-23 18:39:21,616 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-23 18:39:21,616 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-23 18:39:21,616 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-23 18:39:21,616 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-23 18:39:21,616 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-23 18:39:21,616 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,616 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,616 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-23 18:39:21,616 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-23 18:39:21,616 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-23 18:39:21,617 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-23 18:39:21,617 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-23 18:39:21,617 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-23 18:39:21,617 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-23 18:39:21,617 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-23 18:39:21,617 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,617 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,617 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-23 18:39:21,617 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-23 18:39:21,617 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-23 18:39:21,617 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-23 18:39:21,618 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,618 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-23 18:39:21,618 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-23 18:39:21,618 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-23 18:39:21,618 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,618 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,618 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-23 18:39:21,618 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-23 18:39:21,618 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-23 18:39:21,618 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-23 18:39:21,619 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-23 18:39:21,619 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-23 18:39:21,619 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,619 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,619 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-23 18:39:21,619 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,619 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-23 18:39:21,619 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-23 18:39:21,619 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-23 18:39:21,619 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-23 18:39:21,619 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-23 18:39:21,620 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-23 18:39:21,620 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-23 18:39:21,620 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-23 18:39:21,620 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-23 18:39:21,620 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-23 18:39:21,620 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,620 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,620 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,620 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-23 18:39:21,621 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-23 18:39:21,621 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-23 18:39:21,621 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-23 18:39:21,621 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-23 18:39:21,621 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-23 18:39:21,621 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-23 18:39:21,621 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-23 18:39:21,621 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,621 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,621 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,622 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-23 18:39:21,622 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-23 18:39:21,622 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-23 18:39:21,622 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-23 18:39:21,622 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-23 18:39:21,622 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-23 18:39:21,622 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-23 18:39:21,622 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-23 18:39:21,622 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,622 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,622 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,623 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-23 18:39:21,623 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-23 18:39:21,623 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-23 18:39:21,623 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-23 18:39:21,623 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-23 18:39:21,623 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-23 18:39:21,623 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-23 18:39:21,623 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-23 18:39:21,623 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-23 18:39:21,623 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,624 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,624 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-23 18:39:21,624 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:39:21,624 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (= ~a15~0 8)) [2020-10-23 18:39:21,624 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:39:21,624 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:39:21,624 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 876 892) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (and (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a15~0 8) (= ~a12~0 |old(~a12~0)|)) (not (<= (+ |old(~a12~0)| 49) 0))) [2020-10-23 18:39:21,625 INFO L270 CegarLoopResult]: At program point L890(line 890) the Hoare annotation is: (or (<= ~a15~0 5) (<= (+ ~a12~0 49) 0) (<= 7 ~a15~0) (<= 8 ~a21~0) (not (= 8 |old(~a15~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (<= ~a21~0 6)) [2020-10-23 18:39:21,625 INFO L274 CegarLoopResult]: For program point L890-1(line 890) no Hoare annotation was computed. [2020-10-23 18:39:21,625 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 876 892) no Hoare annotation was computed. [2020-10-23 18:39:21,625 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-23 18:39:21,625 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (or (<= ~a15~0 5) (<= (+ ~a12~0 49) 0) (<= 7 ~a15~0) (<= 8 ~a21~0) (not (= 8 |old(~a15~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (<= ~a21~0 6)) [2020-10-23 18:39:21,625 INFO L274 CegarLoopResult]: For program point L882-3(lines 876 892) no Hoare annotation was computed. [2020-10-23 18:39:21,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:39:21 BoogieIcfgContainer [2020-10-23 18:39:21,651 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:39:21,652 INFO L168 Benchmark]: Toolchain (without parser) took 50422.48 ms. Allocated memory was 153.1 MB in the beginning and 675.3 MB in the end (delta: 522.2 MB). Free memory was 126.6 MB in the beginning and 464.3 MB in the end (delta: -337.8 MB). Peak memory consumption was 405.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:39:21,655 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 153.1 MB. Free memory is still 126.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:39:21,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 917.46 ms. Allocated memory is still 153.1 MB. Free memory was 126.0 MB in the beginning and 125.4 MB in the end (delta: 558.9 kB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. [2020-10-23 18:39:21,657 INFO L168 Benchmark]: Boogie Preprocessor took 186.16 ms. Allocated memory is still 153.1 MB. Free memory was 125.4 MB in the beginning and 119.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-23 18:39:21,657 INFO L168 Benchmark]: RCFGBuilder took 2110.84 ms. Allocated memory is still 153.1 MB. Free memory was 119.6 MB in the beginning and 78.8 MB in the end (delta: 40.8 MB). Peak memory consumption was 77.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:39:21,665 INFO L168 Benchmark]: TraceAbstraction took 47194.09 ms. Allocated memory was 153.1 MB in the beginning and 675.3 MB in the end (delta: 522.2 MB). Free memory was 78.3 MB in the beginning and 464.3 MB in the end (delta: -386.0 MB). Peak memory consumption was 355.8 MB. Max. memory is 8.0 GB. [2020-10-23 18:39:21,673 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 153.1 MB. Free memory is still 126.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 917.46 ms. Allocated memory is still 153.1 MB. Free memory was 126.0 MB in the beginning and 125.4 MB in the end (delta: 558.9 kB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 186.16 ms. Allocated memory is still 153.1 MB. Free memory was 125.4 MB in the beginning and 119.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2110.84 ms. Allocated memory is still 153.1 MB. Free memory was 119.6 MB in the beginning and 78.8 MB in the end (delta: 40.8 MB). Peak memory consumption was 77.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 47194.09 ms. Allocated memory was 153.1 MB in the beginning and 675.3 MB in the end (delta: 522.2 MB). Free memory was 78.3 MB in the beginning and 464.3 MB in the end (delta: -386.0 MB). Peak memory consumption was 355.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: (((((a15 <= 5 || a12 + 49 <= 0) || 7 <= a15) || 8 <= a21) || !(8 == \old(a15))) || !(\old(a12) + 49 <= 0)) || a21 <= 6 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 43.9s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 30.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1707 SDtfs, 4436 SDslu, 402 SDs, 0 SdLazy, 13596 SolverSat, 2200 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2712 GetRequests, 2590 SyntacticMatches, 7 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2645occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 2804 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 209 PreInvPairs, 267 NumberOfFragments, 227 HoareAnnotationTreeSize, 209 FomulaSimplifications, 186661 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 11578 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 5100 NumberOfCodeBlocks, 5100 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 5079 ConstructedInterpolants, 0 QuantifiedInterpolants, 5144522 SizeOfPredicates, 14 NumberOfNonLiveVariables, 5052 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 21 InterpolantComputations, 8 PerfectInterpolantSequences, 3837/4258 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...