/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:28:55,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:28:55,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:28:55,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:28:55,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:28:55,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:28:55,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:28:55,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:28:55,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:28:55,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:28:55,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:28:55,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:28:55,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:28:55,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:28:55,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:28:55,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:28:55,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:28:55,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:28:55,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:28:55,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:28:55,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:28:55,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:28:55,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:28:55,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:28:55,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 11:28:55,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 11:28:55,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 11:28:55,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 11:28:55,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 11:28:55,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 11:28:55,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 11:28:55,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 11:28:55,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 11:28:55,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 11:28:55,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 11:28:55,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 11:28:55,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 11:28:55,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 11:28:55,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:28:55,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:28:55,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:28:55,366 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 [2020-07-07 11:28:55,379 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:28:55,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:28:55,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:28:55,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:28:55,381 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:28:55,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:28:55,381 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:28:55,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:28:55,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:28:55,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:28:55,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:28:55,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:28:55,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:28:55,383 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:28:55,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:28:55,383 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:28:55,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:28:55,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:28:55,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:28:55,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:28:55,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:28:55,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:28:55,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:28:55,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:28:55,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:28:55,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:28:55,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:28:55,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:28:55,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:28:55,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:28:55,700 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:28:55,714 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:28:55,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:28:55,719 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:28:55,719 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:28:55,720 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label24.c [2020-07-07 11:28:55,781 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a34e522df/c30e3d49461f46c88e3b1e9fa6834e4f/FLAGad17cb449 [2020-07-07 11:28:56,293 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:28:56,294 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label24.c [2020-07-07 11:28:56,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a34e522df/c30e3d49461f46c88e3b1e9fa6834e4f/FLAGad17cb449 [2020-07-07 11:28:56,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a34e522df/c30e3d49461f46c88e3b1e9fa6834e4f [2020-07-07 11:28:56,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:28:56,632 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:28:56,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:28:56,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:28:56,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:28:56,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:28:56" (1/1) ... [2020-07-07 11:28:56,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b625b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:56, skipping insertion in model container [2020-07-07 11:28:56,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:28:56" (1/1) ... [2020-07-07 11:28:56,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:28:56,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:28:57,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:28:57,380 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:28:57,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:28:57,659 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:28:57,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:57 WrapperNode [2020-07-07 11:28:57,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:28:57,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:28:57,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:28:57,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:28:57,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:57" (1/1) ... [2020-07-07 11:28:57,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:57" (1/1) ... [2020-07-07 11:28:57,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:57" (1/1) ... [2020-07-07 11:28:57,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:57" (1/1) ... [2020-07-07 11:28:57,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:57" (1/1) ... [2020-07-07 11:28:57,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:57" (1/1) ... [2020-07-07 11:28:57,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:57" (1/1) ... [2020-07-07 11:28:57,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:28:57,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:28:57,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:28:57,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:28:57,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:28:57,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:28:57,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:28:57,902 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-07 11:28:57,902 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:28:57,902 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-07 11:28:57,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:28:57,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 11:28:57,902 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-07 11:28:57,903 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:28:57,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:28:57,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:28:59,391 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:28:59,392 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 11:28:59,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:28:59 BoogieIcfgContainer [2020-07-07 11:28:59,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:28:59,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:28:59,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:28:59,404 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:28:59,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:28:56" (1/3) ... [2020-07-07 11:28:59,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16363e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:28:59, skipping insertion in model container [2020-07-07 11:28:59,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:28:57" (2/3) ... [2020-07-07 11:28:59,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16363e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:28:59, skipping insertion in model container [2020-07-07 11:28:59,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:28:59" (3/3) ... [2020-07-07 11:28:59,408 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label24.c [2020-07-07 11:28:59,419 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:28:59,428 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:28:59,443 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:28:59,470 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:28:59,470 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:28:59,470 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:28:59,470 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:28:59,471 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:28:59,471 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:28:59,471 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:28:59,471 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:28:59,495 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-07-07 11:28:59,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-07 11:28:59,505 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:28:59,506 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] [2020-07-07 11:28:59,506 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:28:59,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:28:59,513 INFO L82 PathProgramCache]: Analyzing trace with hash 2116109586, now seen corresponding path program 1 times [2020-07-07 11:28:59,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:28:59,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132590592] [2020-07-07 11:28:59,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:28:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:28:59,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:28:59,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132590592] [2020-07-07 11:28:59,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:28:59,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:28:59,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651537978] [2020-07-07 11:28:59,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:28:59,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:28:59,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:28:59,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:28:59,979 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-07-07 11:29:01,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:29:01,752 INFO L93 Difference]: Finished difference Result 698 states and 1241 transitions. [2020-07-07 11:29:01,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:29:01,754 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-07-07 11:29:01,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:29:01,771 INFO L225 Difference]: With dead ends: 698 [2020-07-07 11:29:01,772 INFO L226 Difference]: Without dead ends: 380 [2020-07-07 11:29:01,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:29:01,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-07-07 11:29:01,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-07-07 11:29:01,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-07-07 11:29:01,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 604 transitions. [2020-07-07 11:29:01,876 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 604 transitions. Word has length 47 [2020-07-07 11:29:01,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:29:01,877 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 604 transitions. [2020-07-07 11:29:01,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:29:01,878 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 604 transitions. [2020-07-07 11:29:01,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-07 11:29:01,888 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:29:01,888 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:29:01,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:29:01,890 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:29:01,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:29:01,891 INFO L82 PathProgramCache]: Analyzing trace with hash 13726601, now seen corresponding path program 1 times [2020-07-07 11:29:01,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:29:01,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090346996] [2020-07-07 11:29:01,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:29:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:02,239 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:29:02,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090346996] [2020-07-07 11:29:02,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:29:02,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 11:29:02,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003514213] [2020-07-07 11:29:02,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 11:29:02,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:29:02,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 11:29:02,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:29:02,243 INFO L87 Difference]: Start difference. First operand 374 states and 604 transitions. Second operand 8 states. [2020-07-07 11:29:05,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:29:05,400 INFO L93 Difference]: Finished difference Result 1548 states and 2669 transitions. [2020-07-07 11:29:05,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-07 11:29:05,401 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 116 [2020-07-07 11:29:05,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:29:05,418 INFO L225 Difference]: With dead ends: 1548 [2020-07-07 11:29:05,419 INFO L226 Difference]: Without dead ends: 1180 [2020-07-07 11:29:05,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-07-07 11:29:05,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2020-07-07 11:29:05,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 954. [2020-07-07 11:29:05,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 954 states. [2020-07-07 11:29:05,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1413 transitions. [2020-07-07 11:29:05,530 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1413 transitions. Word has length 116 [2020-07-07 11:29:05,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:29:05,530 INFO L479 AbstractCegarLoop]: Abstraction has 954 states and 1413 transitions. [2020-07-07 11:29:05,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 11:29:05,531 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1413 transitions. [2020-07-07 11:29:05,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-07 11:29:05,534 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:29:05,534 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:29:05,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:29:05,534 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:29:05,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:29:05,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1028566563, now seen corresponding path program 1 times [2020-07-07 11:29:05,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:29:05,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250343663] [2020-07-07 11:29:05,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:29:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:06,069 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:29:06,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250343663] [2020-07-07 11:29:06,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:29:06,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 11:29:06,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623604058] [2020-07-07 11:29:06,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 11:29:06,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:29:06,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 11:29:06,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:29:06,072 INFO L87 Difference]: Start difference. First operand 954 states and 1413 transitions. Second operand 9 states. [2020-07-07 11:29:07,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:29:07,740 INFO L93 Difference]: Finished difference Result 2122 states and 3145 transitions. [2020-07-07 11:29:07,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 11:29:07,743 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 142 [2020-07-07 11:29:07,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:29:07,751 INFO L225 Difference]: With dead ends: 2122 [2020-07-07 11:29:07,752 INFO L226 Difference]: Without dead ends: 1174 [2020-07-07 11:29:07,755 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-07-07 11:29:07,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2020-07-07 11:29:07,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 968. [2020-07-07 11:29:07,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 968 states. [2020-07-07 11:29:07,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1395 transitions. [2020-07-07 11:29:07,797 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1395 transitions. Word has length 142 [2020-07-07 11:29:07,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:29:07,798 INFO L479 AbstractCegarLoop]: Abstraction has 968 states and 1395 transitions. [2020-07-07 11:29:07,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 11:29:07,798 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1395 transitions. [2020-07-07 11:29:07,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-07 11:29:07,804 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:29:07,804 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, 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] [2020-07-07 11:29:07,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 11:29:07,805 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:29:07,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:29:07,805 INFO L82 PathProgramCache]: Analyzing trace with hash -518382015, now seen corresponding path program 1 times [2020-07-07 11:29:07,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:29:07,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395830792] [2020-07-07 11:29:07,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:29:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:08,046 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 80 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-07 11:29:08,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395830792] [2020-07-07 11:29:08,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597585302] [2020-07-07 11:29:08,047 INFO L94 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 [2020-07-07 11:29:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:08,144 INFO L264 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-07 11:29:08,177 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:29:08,323 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-07 11:29:08,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:29:08,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-07-07 11:29:08,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84931772] [2020-07-07 11:29:08,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:29:08,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:29:08,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:29:08,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-07 11:29:08,328 INFO L87 Difference]: Start difference. First operand 968 states and 1395 transitions. Second operand 5 states. [2020-07-07 11:29:09,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:29:09,735 INFO L93 Difference]: Finished difference Result 2166 states and 3428 transitions. [2020-07-07 11:29:09,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 11:29:09,737 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2020-07-07 11:29:09,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:29:09,745 INFO L225 Difference]: With dead ends: 2166 [2020-07-07 11:29:09,746 INFO L226 Difference]: Without dead ends: 1204 [2020-07-07 11:29:09,749 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-07-07 11:29:09,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2020-07-07 11:29:09,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1132. [2020-07-07 11:29:09,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1132 states. [2020-07-07 11:29:09,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1572 transitions. [2020-07-07 11:29:09,803 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1572 transitions. Word has length 212 [2020-07-07 11:29:09,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:29:09,803 INFO L479 AbstractCegarLoop]: Abstraction has 1132 states and 1572 transitions. [2020-07-07 11:29:09,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:29:09,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1572 transitions. [2020-07-07 11:29:09,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-07-07 11:29:09,808 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:29:09,808 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:29:10,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:29:10,024 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:29:10,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:29:10,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1121794437, now seen corresponding path program 1 times [2020-07-07 11:29:10,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:29:10,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390498425] [2020-07-07 11:29:10,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:29:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:10,347 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 78 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-07-07 11:29:10,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390498425] [2020-07-07 11:29:10,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116657274] [2020-07-07 11:29:10,349 INFO L94 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 [2020-07-07 11:29:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:10,458 INFO L264 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:29:10,475 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:29:10,586 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-07-07 11:29:10,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:29:10,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2020-07-07 11:29:10,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649212342] [2020-07-07 11:29:10,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:29:10,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:29:10,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:29:10,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:29:10,589 INFO L87 Difference]: Start difference. First operand 1132 states and 1572 transitions. Second operand 3 states. [2020-07-07 11:29:11,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:29:11,385 INFO L93 Difference]: Finished difference Result 1872 states and 2526 transitions. [2020-07-07 11:29:11,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:29:11,386 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 226 [2020-07-07 11:29:11,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:29:11,398 INFO L225 Difference]: With dead ends: 1872 [2020-07-07 11:29:11,398 INFO L226 Difference]: Without dead ends: 1870 [2020-07-07 11:29:11,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:29:11,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1870 states. [2020-07-07 11:29:11,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1870 to 944. [2020-07-07 11:29:11,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 944 states. [2020-07-07 11:29:11,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1251 transitions. [2020-07-07 11:29:11,439 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1251 transitions. Word has length 226 [2020-07-07 11:29:11,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:29:11,441 INFO L479 AbstractCegarLoop]: Abstraction has 944 states and 1251 transitions. [2020-07-07 11:29:11,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:29:11,442 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1251 transitions. [2020-07-07 11:29:11,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-07 11:29:11,445 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:29:11,445 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, 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] [2020-07-07 11:29:11,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:29:11,660 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:29:11,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:29:11,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1694076266, now seen corresponding path program 1 times [2020-07-07 11:29:11,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:29:11,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219808051] [2020-07-07 11:29:11,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:29:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:11,914 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 81 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-07 11:29:11,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219808051] [2020-07-07 11:29:11,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540042284] [2020-07-07 11:29:11,915 INFO L94 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 [2020-07-07 11:29:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:12,097 INFO L264 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:29:12,102 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:29:12,170 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-07 11:29:12,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:29:12,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2020-07-07 11:29:12,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466839473] [2020-07-07 11:29:12,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:29:12,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:29:12,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:29:12,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:29:12,173 INFO L87 Difference]: Start difference. First operand 944 states and 1251 transitions. Second operand 3 states. [2020-07-07 11:29:13,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:29:13,279 INFO L93 Difference]: Finished difference Result 2616 states and 3431 transitions. [2020-07-07 11:29:13,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:29:13,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2020-07-07 11:29:13,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:29:13,291 INFO L225 Difference]: With dead ends: 2616 [2020-07-07 11:29:13,291 INFO L226 Difference]: Without dead ends: 1494 [2020-07-07 11:29:13,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 237 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:29:13,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2020-07-07 11:29:13,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1124. [2020-07-07 11:29:13,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2020-07-07 11:29:13,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1430 transitions. [2020-07-07 11:29:13,340 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1430 transitions. Word has length 229 [2020-07-07 11:29:13,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:29:13,341 INFO L479 AbstractCegarLoop]: Abstraction has 1124 states and 1430 transitions. [2020-07-07 11:29:13,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:29:13,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1430 transitions. [2020-07-07 11:29:13,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-07-07 11:29:13,351 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:29:13,351 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:29:13,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:29:13,567 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:29:13,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:29:13,568 INFO L82 PathProgramCache]: Analyzing trace with hash -266552290, now seen corresponding path program 1 times [2020-07-07 11:29:13,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:29:13,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896299981] [2020-07-07 11:29:13,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:29:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:14,962 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 130 proven. 215 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-07 11:29:14,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896299981] [2020-07-07 11:29:14,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056989408] [2020-07-07 11:29:14,964 INFO L94 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 [2020-07-07 11:29:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:15,131 INFO L264 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-07 11:29:15,138 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:29:15,267 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 4, 1] term [2020-07-07 11:29:15,268 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:29:15,269 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:29:15,270 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-07 11:29:15,540 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 309 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-07 11:29:15,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:29:15,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 19 [2020-07-07 11:29:15,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780570266] [2020-07-07 11:29:15,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-07 11:29:15,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:29:15,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-07 11:29:15,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2020-07-07 11:29:15,543 INFO L87 Difference]: Start difference. First operand 1124 states and 1430 transitions. Second operand 19 states. [2020-07-07 11:29:21,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:29:21,482 INFO L93 Difference]: Finished difference Result 2369 states and 3013 transitions. [2020-07-07 11:29:21,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-07-07 11:29:21,483 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 317 [2020-07-07 11:29:21,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:29:21,489 INFO L225 Difference]: With dead ends: 2369 [2020-07-07 11:29:21,490 INFO L226 Difference]: Without dead ends: 1386 [2020-07-07 11:29:21,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=450, Invalid=1712, Unknown=0, NotChecked=0, Total=2162 [2020-07-07 11:29:21,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2020-07-07 11:29:21,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1306. [2020-07-07 11:29:21,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1306 states. [2020-07-07 11:29:21,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 1491 transitions. [2020-07-07 11:29:21,533 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 1491 transitions. Word has length 317 [2020-07-07 11:29:21,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:29:21,534 INFO L479 AbstractCegarLoop]: Abstraction has 1306 states and 1491 transitions. [2020-07-07 11:29:21,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-07 11:29:21,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 1491 transitions. [2020-07-07 11:29:21,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-07-07 11:29:21,540 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:29:21,541 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:29:21,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:29:21,757 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:29:21,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:29:21,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1074149043, now seen corresponding path program 1 times [2020-07-07 11:29:21,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:29:21,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678131114] [2020-07-07 11:29:21,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:29:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:22,792 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 267 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-07-07 11:29:22,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678131114] [2020-07-07 11:29:22,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085363501] [2020-07-07 11:29:22,793 INFO L94 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 [2020-07-07 11:29:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:22,961 INFO L264 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-07 11:29:22,967 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:29:23,013 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 1] term [2020-07-07 11:29:23,014 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-07 11:29:23,160 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2020-07-07 11:29:23,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:29:23,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2020-07-07 11:29:23,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863852791] [2020-07-07 11:29:23,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:29:23,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:29:23,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:29:23,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-07-07 11:29:23,163 INFO L87 Difference]: Start difference. First operand 1306 states and 1491 transitions. Second operand 5 states. [2020-07-07 11:29:24,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:29:24,432 INFO L93 Difference]: Finished difference Result 3372 states and 3923 transitions. [2020-07-07 11:29:24,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 11:29:24,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 342 [2020-07-07 11:29:24,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:29:24,447 INFO L225 Difference]: With dead ends: 3372 [2020-07-07 11:29:24,447 INFO L226 Difference]: Without dead ends: 2254 [2020-07-07 11:29:24,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 345 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2020-07-07 11:29:24,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2020-07-07 11:29:24,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 2060. [2020-07-07 11:29:24,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2060 states. [2020-07-07 11:29:24,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 2341 transitions. [2020-07-07 11:29:24,511 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 2341 transitions. Word has length 342 [2020-07-07 11:29:24,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:29:24,512 INFO L479 AbstractCegarLoop]: Abstraction has 2060 states and 2341 transitions. [2020-07-07 11:29:24,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:29:24,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 2341 transitions. [2020-07-07 11:29:24,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2020-07-07 11:29:24,521 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:29:24,524 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:29:24,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:29:24,739 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:29:24,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:29:24,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1203933665, now seen corresponding path program 1 times [2020-07-07 11:29:24,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:29:24,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686213563] [2020-07-07 11:29:24,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:29:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:25,473 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 383 proven. 79 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2020-07-07 11:29:25,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686213563] [2020-07-07 11:29:25,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262288051] [2020-07-07 11:29:25,474 INFO L94 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 [2020-07-07 11:29:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:25,622 INFO L264 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-07 11:29:25,628 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:29:25,651 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-07 11:29:25,651 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-07 11:29:25,758 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 561 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-07-07 11:29:25,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:29:25,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 10 [2020-07-07 11:29:25,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41475972] [2020-07-07 11:29:25,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 11:29:25,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:29:25,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 11:29:25,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-07 11:29:25,761 INFO L87 Difference]: Start difference. First operand 2060 states and 2341 transitions. Second operand 10 states. [2020-07-07 11:29:29,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:29:29,018 INFO L93 Difference]: Finished difference Result 5432 states and 6385 transitions. [2020-07-07 11:29:29,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-07 11:29:29,020 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 452 [2020-07-07 11:29:29,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:29:29,033 INFO L225 Difference]: With dead ends: 5432 [2020-07-07 11:29:29,033 INFO L226 Difference]: Without dead ends: 3374 [2020-07-07 11:29:29,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 471 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2020-07-07 11:29:29,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3374 states. [2020-07-07 11:29:29,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3374 to 3366. [2020-07-07 11:29:29,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3366 states. [2020-07-07 11:29:29,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 3874 transitions. [2020-07-07 11:29:29,114 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 3874 transitions. Word has length 452 [2020-07-07 11:29:29,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:29:29,115 INFO L479 AbstractCegarLoop]: Abstraction has 3366 states and 3874 transitions. [2020-07-07 11:29:29,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 11:29:29,116 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 3874 transitions. [2020-07-07 11:29:29,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2020-07-07 11:29:29,128 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:29:29,129 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:29:29,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:29:29,344 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:29:29,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:29:29,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1066963527, now seen corresponding path program 1 times [2020-07-07 11:29:29,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:29:29,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144918640] [2020-07-07 11:29:29,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:29:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:30,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 518 proven. 81 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2020-07-07 11:29:30,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144918640] [2020-07-07 11:29:30,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373119938] [2020-07-07 11:29:30,770 INFO L94 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 [2020-07-07 11:29:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:30,927 INFO L264 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 11:29:30,934 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:29:31,022 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 4, 1] term [2020-07-07 11:29:31,023 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:29:31,024 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:29:31,025 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-07 11:29:31,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 762 proven. 2 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-07-07 11:29:31,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:29:31,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 15 [2020-07-07 11:29:31,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980230646] [2020-07-07 11:29:31,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-07 11:29:31,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:29:31,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-07 11:29:31,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-07-07 11:29:31,482 INFO L87 Difference]: Start difference. First operand 3366 states and 3874 transitions. Second operand 15 states. [2020-07-07 11:29:35,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:29:35,723 INFO L93 Difference]: Finished difference Result 6858 states and 8117 transitions. [2020-07-07 11:29:35,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-07 11:29:35,724 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 536 [2020-07-07 11:29:35,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:29:35,740 INFO L225 Difference]: With dead ends: 6858 [2020-07-07 11:29:35,740 INFO L226 Difference]: Without dead ends: 3788 [2020-07-07 11:29:35,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 562 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=281, Invalid=909, Unknown=0, NotChecked=0, Total=1190 [2020-07-07 11:29:35,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3788 states. [2020-07-07 11:29:35,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3788 to 3740. [2020-07-07 11:29:35,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3740 states. [2020-07-07 11:29:35,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 4136 transitions. [2020-07-07 11:29:35,831 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 4136 transitions. Word has length 536 [2020-07-07 11:29:35,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:29:35,831 INFO L479 AbstractCegarLoop]: Abstraction has 3740 states and 4136 transitions. [2020-07-07 11:29:35,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-07 11:29:35,832 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 4136 transitions. [2020-07-07 11:29:35,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2020-07-07 11:29:35,852 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:29:35,853 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-07-07 11:29:36,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-07 11:29:36,068 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:29:36,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:29:36,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1935935179, now seen corresponding path program 1 times [2020-07-07 11:29:36,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:29:36,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238134536] [2020-07-07 11:29:36,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:29:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:37,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 546 proven. 81 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2020-07-07 11:29:37,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238134536] [2020-07-07 11:29:37,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894326886] [2020-07-07 11:29:37,557 INFO L94 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 [2020-07-07 11:29:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:37,732 INFO L264 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-07 11:29:37,741 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:29:37,806 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-07 11:29:37,806 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:29:37,808 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 1] term [2020-07-07 11:29:37,808 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:29:37,837 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:29:38,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 790 proven. 2 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2020-07-07 11:29:38,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:29:38,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5] total 15 [2020-07-07 11:29:38,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234193302] [2020-07-07 11:29:38,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-07 11:29:38,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:29:38,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-07 11:29:38,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-07-07 11:29:38,088 INFO L87 Difference]: Start difference. First operand 3740 states and 4136 transitions. Second operand 15 states. [2020-07-07 11:29:38,897 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2020-07-07 11:29:39,799 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2020-07-07 11:29:40,498 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2020-07-07 11:29:43,041 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-07-07 11:29:43,168 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-07-07 11:29:44,505 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-07-07 11:29:44,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:29:44,663 INFO L93 Difference]: Finished difference Result 8402 states and 9344 transitions. [2020-07-07 11:29:44,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-07-07 11:29:44,664 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 614 [2020-07-07 11:29:44,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:29:44,678 INFO L225 Difference]: With dead ends: 8402 [2020-07-07 11:29:44,678 INFO L226 Difference]: Without dead ends: 4662 [2020-07-07 11:29:44,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 649 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=428, Invalid=1734, Unknown=0, NotChecked=0, Total=2162 [2020-07-07 11:29:44,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4662 states. [2020-07-07 11:29:44,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4662 to 3740. [2020-07-07 11:29:44,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3740 states. [2020-07-07 11:29:44,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 4096 transitions. [2020-07-07 11:29:44,764 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 4096 transitions. Word has length 614 [2020-07-07 11:29:44,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:29:44,765 INFO L479 AbstractCegarLoop]: Abstraction has 3740 states and 4096 transitions. [2020-07-07 11:29:44,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-07 11:29:44,765 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 4096 transitions. [2020-07-07 11:29:44,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2020-07-07 11:29:44,777 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:29:44,778 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-07-07 11:29:44,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-07-07 11:29:44,994 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:29:44,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:29:44,995 INFO L82 PathProgramCache]: Analyzing trace with hash 629641869, now seen corresponding path program 1 times [2020-07-07 11:29:44,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:29:44,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096003349] [2020-07-07 11:29:44,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:29:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:45,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 549 proven. 73 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2020-07-07 11:29:45,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096003349] [2020-07-07 11:29:45,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453633815] [2020-07-07 11:29:45,990 INFO L94 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 [2020-07-07 11:29:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:46,167 INFO L264 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:29:46,174 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:29:46,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 795 proven. 2 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2020-07-07 11:29:46,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:29:46,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 9 [2020-07-07 11:29:46,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623869332] [2020-07-07 11:29:46,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 11:29:46,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:29:46,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 11:29:46,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:29:46,379 INFO L87 Difference]: Start difference. First operand 3740 states and 4096 transitions. Second operand 9 states. [2020-07-07 11:29:48,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:29:48,831 INFO L93 Difference]: Finished difference Result 9318 states and 11036 transitions. [2020-07-07 11:29:48,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-07 11:29:48,832 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 636 [2020-07-07 11:29:48,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:29:48,860 INFO L225 Difference]: With dead ends: 9318 [2020-07-07 11:29:48,860 INFO L226 Difference]: Without dead ends: 5950 [2020-07-07 11:29:48,870 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 653 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-07-07 11:29:48,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5950 states. [2020-07-07 11:29:49,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5950 to 5606. [2020-07-07 11:29:49,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5606 states. [2020-07-07 11:29:49,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5606 states to 5606 states and 6216 transitions. [2020-07-07 11:29:49,021 INFO L78 Accepts]: Start accepts. Automaton has 5606 states and 6216 transitions. Word has length 636 [2020-07-07 11:29:49,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:29:49,023 INFO L479 AbstractCegarLoop]: Abstraction has 5606 states and 6216 transitions. [2020-07-07 11:29:49,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 11:29:49,023 INFO L276 IsEmpty]: Start isEmpty. Operand 5606 states and 6216 transitions. [2020-07-07 11:29:49,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 724 [2020-07-07 11:29:49,034 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:29:49,035 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:29:49,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:29:49,249 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:29:49,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:29:49,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1287824626, now seen corresponding path program 1 times [2020-07-07 11:29:49,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:29:49,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112100029] [2020-07-07 11:29:49,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:29:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:50,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2071 backedges. 819 proven. 623 refuted. 0 times theorem prover too weak. 629 trivial. 0 not checked. [2020-07-07 11:29:50,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112100029] [2020-07-07 11:29:50,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251455981] [2020-07-07 11:29:50,510 INFO L94 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 [2020-07-07 11:29:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:29:50,719 INFO L264 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-07 11:29:50,730 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:29:50,807 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-07 11:29:50,808 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:29:50,809 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 1] term [2020-07-07 11:29:50,809 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:29:50,837 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:29:52,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2071 backedges. 1177 proven. 2 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2020-07-07 11:29:52,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:29:52,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5] total 17 [2020-07-07 11:29:52,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133283688] [2020-07-07 11:29:52,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-07 11:29:52,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:29:52,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-07 11:29:52,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2020-07-07 11:29:52,016 INFO L87 Difference]: Start difference. First operand 5606 states and 6216 transitions. Second operand 17 states. [2020-07-07 11:30:01,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:30:01,344 INFO L93 Difference]: Finished difference Result 11200 states and 12866 transitions. [2020-07-07 11:30:01,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-07-07 11:30:01,345 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 723 [2020-07-07 11:30:01,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:30:01,366 INFO L225 Difference]: With dead ends: 11200 [2020-07-07 11:30:01,366 INFO L226 Difference]: Without dead ends: 4812 [2020-07-07 11:30:01,381 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 844 GetRequests, 776 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1455 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=770, Invalid=4060, Unknown=0, NotChecked=0, Total=4830 [2020-07-07 11:30:01,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2020-07-07 11:30:01,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 4128. [2020-07-07 11:30:01,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4128 states. [2020-07-07 11:30:01,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4128 states to 4128 states and 4497 transitions. [2020-07-07 11:30:01,478 INFO L78 Accepts]: Start accepts. Automaton has 4128 states and 4497 transitions. Word has length 723 [2020-07-07 11:30:01,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:30:01,479 INFO L479 AbstractCegarLoop]: Abstraction has 4128 states and 4497 transitions. [2020-07-07 11:30:01,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-07 11:30:01,480 INFO L276 IsEmpty]: Start isEmpty. Operand 4128 states and 4497 transitions. [2020-07-07 11:30:01,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2020-07-07 11:30:01,489 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:30:01,490 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:30:01,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:30:01,704 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:30:01,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:30:01,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1074697562, now seen corresponding path program 1 times [2020-07-07 11:30:01,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:30:01,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760249789] [2020-07-07 11:30:01,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:30:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:02,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 754 proven. 73 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2020-07-07 11:30:02,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760249789] [2020-07-07 11:30:02,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506896804] [2020-07-07 11:30:02,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:30:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:02,933 INFO L264 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-07 11:30:02,940 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:30:03,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 1243 proven. 10 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2020-07-07 11:30:03,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:30:03,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2020-07-07 11:30:03,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265167206] [2020-07-07 11:30:03,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 11:30:03,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:30:03,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 11:30:03,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:30:03,332 INFO L87 Difference]: Start difference. First operand 4128 states and 4497 transitions. Second operand 11 states. [2020-07-07 11:30:05,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:30:05,582 INFO L93 Difference]: Finished difference Result 8606 states and 9378 transitions. [2020-07-07 11:30:05,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-07 11:30:05,588 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 795 [2020-07-07 11:30:05,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:30:05,599 INFO L225 Difference]: With dead ends: 8606 [2020-07-07 11:30:05,599 INFO L226 Difference]: Without dead ends: 4484 [2020-07-07 11:30:05,606 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 834 GetRequests, 815 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2020-07-07 11:30:05,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4484 states. [2020-07-07 11:30:05,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4484 to 4102. [2020-07-07 11:30:05,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4102 states. [2020-07-07 11:30:05,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4102 states to 4102 states and 4440 transitions. [2020-07-07 11:30:05,673 INFO L78 Accepts]: Start accepts. Automaton has 4102 states and 4440 transitions. Word has length 795 [2020-07-07 11:30:05,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:30:05,674 INFO L479 AbstractCegarLoop]: Abstraction has 4102 states and 4440 transitions. [2020-07-07 11:30:05,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 11:30:05,674 INFO L276 IsEmpty]: Start isEmpty. Operand 4102 states and 4440 transitions. [2020-07-07 11:30:05,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 872 [2020-07-07 11:30:05,684 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:30:05,685 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:30:05,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-07-07 11:30:05,901 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:30:05,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:30:05,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1556654866, now seen corresponding path program 1 times [2020-07-07 11:30:05,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:30:05,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547333325] [2020-07-07 11:30:05,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:30:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:07,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 616 proven. 158 refuted. 0 times theorem prover too weak. 1489 trivial. 0 not checked. [2020-07-07 11:30:07,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547333325] [2020-07-07 11:30:07,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330475291] [2020-07-07 11:30:07,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:30:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:07,265 INFO L264 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-07 11:30:07,274 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:30:07,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 1450 proven. 2 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2020-07-07 11:30:07,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:30:07,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2020-07-07 11:30:07,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034700165] [2020-07-07 11:30:07,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 11:30:07,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:30:07,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 11:30:07,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-07-07 11:30:07,631 INFO L87 Difference]: Start difference. First operand 4102 states and 4440 transitions. Second operand 12 states. [2020-07-07 11:30:10,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:30:10,292 INFO L93 Difference]: Finished difference Result 9124 states and 9898 transitions. [2020-07-07 11:30:10,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-07 11:30:10,293 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 871 [2020-07-07 11:30:10,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:30:10,307 INFO L225 Difference]: With dead ends: 9124 [2020-07-07 11:30:10,308 INFO L226 Difference]: Without dead ends: 5028 [2020-07-07 11:30:10,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 922 GetRequests, 897 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2020-07-07 11:30:10,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5028 states. [2020-07-07 11:30:10,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5028 to 4658. [2020-07-07 11:30:10,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4658 states. [2020-07-07 11:30:10,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4658 states to 4658 states and 5013 transitions. [2020-07-07 11:30:10,405 INFO L78 Accepts]: Start accepts. Automaton has 4658 states and 5013 transitions. Word has length 871 [2020-07-07 11:30:10,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:30:10,406 INFO L479 AbstractCegarLoop]: Abstraction has 4658 states and 5013 transitions. [2020-07-07 11:30:10,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 11:30:10,406 INFO L276 IsEmpty]: Start isEmpty. Operand 4658 states and 5013 transitions. [2020-07-07 11:30:10,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 971 [2020-07-07 11:30:10,420 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:30:10,421 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2020-07-07 11:30:10,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-07-07 11:30:10,635 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:30:10,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:30:10,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1319533531, now seen corresponding path program 1 times [2020-07-07 11:30:10,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:30:10,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768446624] [2020-07-07 11:30:10,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:30:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:12,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 826 proven. 71 refuted. 0 times theorem prover too weak. 1979 trivial. 0 not checked. [2020-07-07 11:30:12,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768446624] [2020-07-07 11:30:12,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218631684] [2020-07-07 11:30:12,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:30:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:12,779 INFO L264 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-07 11:30:12,787 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:30:12,806 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-07 11:30:12,807 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-07 11:30:13,114 INFO L501 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-07-07 11:30:13,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 1513 proven. 10 refuted. 0 times theorem prover too weak. 1353 trivial. 0 not checked. [2020-07-07 11:30:13,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:30:13,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2020-07-07 11:30:13,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472315662] [2020-07-07 11:30:13,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-07 11:30:13,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:30:13,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-07 11:30:13,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2020-07-07 11:30:13,722 INFO L87 Difference]: Start difference. First operand 4658 states and 5013 transitions. Second operand 19 states. [2020-07-07 11:30:21,511 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-07-07 11:30:21,999 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-07-07 11:30:26,514 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2020-07-07 11:30:32,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:30:32,457 INFO L93 Difference]: Finished difference Result 11698 states and 12538 transitions. [2020-07-07 11:30:32,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-07-07 11:30:32,458 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 970 [2020-07-07 11:30:32,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:30:32,476 INFO L225 Difference]: With dead ends: 11698 [2020-07-07 11:30:32,476 INFO L226 Difference]: Without dead ends: 7046 [2020-07-07 11:30:32,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1106 GetRequests, 1029 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1920 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=850, Invalid=5002, Unknown=0, NotChecked=0, Total=5852 [2020-07-07 11:30:32,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7046 states. [2020-07-07 11:30:32,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7046 to 5396. [2020-07-07 11:30:32,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5396 states. [2020-07-07 11:30:32,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5396 states to 5396 states and 5747 transitions. [2020-07-07 11:30:32,599 INFO L78 Accepts]: Start accepts. Automaton has 5396 states and 5747 transitions. Word has length 970 [2020-07-07 11:30:32,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:30:32,600 INFO L479 AbstractCegarLoop]: Abstraction has 5396 states and 5747 transitions. [2020-07-07 11:30:32,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-07 11:30:32,600 INFO L276 IsEmpty]: Start isEmpty. Operand 5396 states and 5747 transitions. [2020-07-07 11:30:32,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1515 [2020-07-07 11:30:32,632 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:30:32,633 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:30:32,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-07-07 11:30:32,847 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:30:32,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:30:32,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1398103861, now seen corresponding path program 1 times [2020-07-07 11:30:32,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:30:32,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886214714] [2020-07-07 11:30:32,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:30:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:34,938 INFO L134 CoverageAnalysis]: Checked inductivity of 6489 backedges. 2564 proven. 97 refuted. 0 times theorem prover too weak. 3828 trivial. 0 not checked. [2020-07-07 11:30:34,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886214714] [2020-07-07 11:30:34,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553239820] [2020-07-07 11:30:34,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:30:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:35,329 INFO L264 TraceCheckSpWp]: Trace formula consists of 2039 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-07 11:30:35,342 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:30:35,376 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-07 11:30:35,377 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-07 11:30:35,378 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-07 11:30:35,379 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-07 11:30:35,380 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-07 11:30:35,381 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-07-07 11:30:35,383 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-07 11:30:35,383 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-07 11:30:35,385 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-07 11:30:35,387 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-07 11:30:35,388 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-07 11:30:35,389 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-07 11:30:35,390 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-07 11:30:35,391 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-07 11:30:35,392 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-07 11:30:35,394 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-07 11:30:35,395 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-07 11:30:35,395 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-07 11:30:35,396 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-07 11:30:35,397 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-07 11:30:35,399 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-07 11:30:35,399 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-07 11:30:35,401 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-07 11:30:35,402 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-07 11:30:35,403 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-07 11:30:35,404 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-07-07 11:30:36,447 INFO L134 CoverageAnalysis]: Checked inductivity of 6489 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 6019 trivial. 0 not checked. [2020-07-07 11:30:36,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:30:36,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 9 [2020-07-07 11:30:36,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077660647] [2020-07-07 11:30:36,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 11:30:36,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:30:36,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 11:30:36,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:30:36,449 INFO L87 Difference]: Start difference. First operand 5396 states and 5747 transitions. Second operand 3 states. [2020-07-07 11:30:37,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:30:37,363 INFO L93 Difference]: Finished difference Result 12622 states and 13544 transitions. [2020-07-07 11:30:37,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 11:30:37,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1514 [2020-07-07 11:30:37,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:30:37,380 INFO L225 Difference]: With dead ends: 12622 [2020-07-07 11:30:37,381 INFO L226 Difference]: Without dead ends: 6676 [2020-07-07 11:30:37,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1546 GetRequests, 1538 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:30:37,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6676 states. [2020-07-07 11:30:37,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6676 to 6494. [2020-07-07 11:30:37,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6494 states. [2020-07-07 11:30:37,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6494 states to 6494 states and 6875 transitions. [2020-07-07 11:30:37,509 INFO L78 Accepts]: Start accepts. Automaton has 6494 states and 6875 transitions. Word has length 1514 [2020-07-07 11:30:37,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:30:37,511 INFO L479 AbstractCegarLoop]: Abstraction has 6494 states and 6875 transitions. [2020-07-07 11:30:37,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 11:30:37,511 INFO L276 IsEmpty]: Start isEmpty. Operand 6494 states and 6875 transitions. [2020-07-07 11:30:37,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1523 [2020-07-07 11:30:37,539 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:30:37,540 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 6, 6, 6, 5, 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, 3, 3, 3, 3, 3, 3, 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] [2020-07-07 11:30:37,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:30:37,756 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:30:37,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:30:37,757 INFO L82 PathProgramCache]: Analyzing trace with hash -248112715, now seen corresponding path program 1 times [2020-07-07 11:30:37,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:30:37,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549203294] [2020-07-07 11:30:37,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:30:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:39,923 INFO L134 CoverageAnalysis]: Checked inductivity of 7107 backedges. 1578 proven. 131 refuted. 0 times theorem prover too weak. 5398 trivial. 0 not checked. [2020-07-07 11:30:39,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549203294] [2020-07-07 11:30:39,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377579086] [2020-07-07 11:30:39,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:30:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:40,293 INFO L264 TraceCheckSpWp]: Trace formula consists of 2082 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-07 11:30:40,307 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:30:40,362 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-07 11:30:40,363 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:30:40,363 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:30:40,396 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:30:41,451 INFO L134 CoverageAnalysis]: Checked inductivity of 7107 backedges. 2326 proven. 2 refuted. 0 times theorem prover too weak. 4779 trivial. 0 not checked. [2020-07-07 11:30:41,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:30:41,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2020-07-07 11:30:41,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316705526] [2020-07-07 11:30:41,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 11:30:41,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:30:41,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 11:30:41,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-07-07 11:30:41,455 INFO L87 Difference]: Start difference. First operand 6494 states and 6875 transitions. Second operand 12 states. [2020-07-07 11:30:44,787 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-07-07 11:30:44,937 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2020-07-07 11:30:46,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:30:46,112 INFO L93 Difference]: Finished difference Result 13732 states and 14532 transitions. [2020-07-07 11:30:46,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-07 11:30:46,113 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 1522 [2020-07-07 11:30:46,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:30:46,129 INFO L225 Difference]: With dead ends: 13732 [2020-07-07 11:30:46,129 INFO L226 Difference]: Without dead ends: 7244 [2020-07-07 11:30:46,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1587 GetRequests, 1559 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=189, Invalid=623, Unknown=0, NotChecked=0, Total=812 [2020-07-07 11:30:46,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7244 states. [2020-07-07 11:30:46,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7244 to 6494. [2020-07-07 11:30:46,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6494 states. [2020-07-07 11:30:46,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6494 states to 6494 states and 6847 transitions. [2020-07-07 11:30:46,259 INFO L78 Accepts]: Start accepts. Automaton has 6494 states and 6847 transitions. Word has length 1522 [2020-07-07 11:30:46,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:30:46,260 INFO L479 AbstractCegarLoop]: Abstraction has 6494 states and 6847 transitions. [2020-07-07 11:30:46,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 11:30:46,261 INFO L276 IsEmpty]: Start isEmpty. Operand 6494 states and 6847 transitions. [2020-07-07 11:30:46,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1651 [2020-07-07 11:30:46,290 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:30:46,291 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:30:46,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-07-07 11:30:46,506 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:30:46,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:30:46,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1464304767, now seen corresponding path program 1 times [2020-07-07 11:30:46,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:30:46,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337546635] [2020-07-07 11:30:46,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:30:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:47,136 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2020-07-07 11:30:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:47,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:47,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:47,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:49,573 INFO L134 CoverageAnalysis]: Checked inductivity of 8459 backedges. 1341 proven. 343 refuted. 0 times theorem prover too weak. 6775 trivial. 0 not checked. [2020-07-07 11:30:49,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337546635] [2020-07-07 11:30:49,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265659271] [2020-07-07 11:30:49,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:30:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:30:50,004 INFO L264 TraceCheckSpWp]: Trace formula consists of 2251 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 11:30:50,015 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:30:50,130 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:30:50,130 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-07 11:30:58,051 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:30:59,590 INFO L134 CoverageAnalysis]: Checked inductivity of 8459 backedges. 2514 proven. 88 refuted. 0 times theorem prover too weak. 5857 trivial. 0 not checked. [2020-07-07 11:30:59,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:30:59,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8] total 20 [2020-07-07 11:30:59,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171346741] [2020-07-07 11:30:59,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-07 11:30:59,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:30:59,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-07 11:30:59,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=309, Unknown=2, NotChecked=0, Total=380 [2020-07-07 11:30:59,594 INFO L87 Difference]: Start difference. First operand 6494 states and 6847 transitions. Second operand 20 states. [2020-07-07 11:31:27,496 WARN L193 SmtUtils]: Spent 8.04 s on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2020-07-07 11:31:59,353 WARN L193 SmtUtils]: Spent 5.98 s on a formula simplification. DAG size of input: 32 DAG size of output: 22 [2020-07-07 11:32:30,567 WARN L193 SmtUtils]: Spent 8.06 s on a formula simplification. DAG size of input: 34 DAG size of output: 25 [2020-07-07 11:32:57,406 WARN L193 SmtUtils]: Spent 6.05 s on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2020-07-07 11:33:19,135 WARN L193 SmtUtils]: Spent 8.07 s on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-07-07 11:34:26,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:34:26,765 INFO L93 Difference]: Finished difference Result 15594 states and 16575 transitions. [2020-07-07 11:34:26,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-07-07 11:34:26,766 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 1650 [2020-07-07 11:34:26,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:34:26,769 INFO L225 Difference]: With dead ends: 15594 [2020-07-07 11:34:26,769 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 11:34:26,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1824 GetRequests, 1730 SyntacticMatches, 4 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2784 ImplicationChecksByTransitivity, 83.7s TimeCoverageRelationStatistics Valid=1656, Invalid=6696, Unknown=20, NotChecked=0, Total=8372 [2020-07-07 11:34:26,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 11:34:26,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 11:34:26,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 11:34:26,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 11:34:26,787 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1650 [2020-07-07 11:34:26,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:34:26,788 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 11:34:26,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-07 11:34:26,788 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 11:34:26,788 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 11:34:26,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:34:26,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 11:34:30,222 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 548 DAG size of output: 483 [2020-07-07 11:34:31,155 WARN L193 SmtUtils]: Spent 929.00 ms on a formula simplification. DAG size of input: 548 DAG size of output: 483 [2020-07-07 11:34:31,346 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 31 [2020-07-07 11:34:36,594 WARN L193 SmtUtils]: Spent 5.22 s on a formula simplification. DAG size of input: 505 DAG size of output: 94 [2020-07-07 11:34:42,686 WARN L193 SmtUtils]: Spent 6.04 s on a formula simplification. DAG size of input: 489 DAG size of output: 83 [2020-07-07 11:34:48,814 WARN L193 SmtUtils]: Spent 6.12 s on a formula simplification. DAG size of input: 489 DAG size of output: 83 [2020-07-07 11:34:48,818 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:34:48,819 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a24~0 |old(~a24~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-07-07 11:34:48,819 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:34:48,819 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-07-07 11:34:48,819 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-07-07 11:34:48,819 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,819 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,820 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,820 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-07-07 11:34:48,820 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-07 11:34:48,820 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-07 11:34:48,820 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-07 11:34:48,820 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-07-07 11:34:48,820 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-07-07 11:34:48,821 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-07-07 11:34:48,821 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-07-07 11:34:48,821 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,821 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,821 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,821 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-07-07 11:34:48,822 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-07-07 11:34:48,822 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-07 11:34:48,822 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-07 11:34:48,822 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-07 11:34:48,822 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-07-07 11:34:48,822 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-07-07 11:34:48,822 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-07-07 11:34:48,823 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,823 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,823 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,823 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-07-07 11:34:48,823 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-07 11:34:48,823 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-07 11:34:48,823 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-07 11:34:48,823 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-07-07 11:34:48,823 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-07-07 11:34:48,824 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-07-07 11:34:48,824 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-07-07 11:34:48,824 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-07-07 11:34:48,824 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,824 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,824 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,824 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-07-07 11:34:48,824 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-07 11:34:48,824 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-07 11:34:48,824 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-07 11:34:48,825 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-07-07 11:34:48,825 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-07-07 11:34:48,825 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-07-07 11:34:48,825 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,825 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,825 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,825 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-07-07 11:34:48,825 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-07 11:34:48,826 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-07 11:34:48,826 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-07 11:34:48,826 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-07-07 11:34:48,826 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-07-07 11:34:48,826 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-07-07 11:34:48,826 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-07-07 11:34:48,826 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-07-07 11:34:48,826 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,826 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,827 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,827 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,827 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-07-07 11:34:48,827 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-07 11:34:48,827 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-07 11:34:48,827 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-07 11:34:48,827 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-07-07 11:34:48,827 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-07-07 11:34:48,827 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-07-07 11:34:48,827 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-07-07 11:34:48,828 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,828 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,828 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,828 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-07 11:34:48,828 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-07 11:34:48,828 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-07 11:34:48,828 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-07-07 11:34:48,828 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-07-07 11:34:48,828 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-07-07 11:34:48,829 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-07-07 11:34:48,829 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-07-07 11:34:48,829 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,829 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,829 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,829 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-07-07 11:34:48,829 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-07-07 11:34:48,829 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-07 11:34:48,830 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-07 11:34:48,830 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-07 11:34:48,830 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-07-07 11:34:48,830 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse10 (= 1 ~a24~0)) (.cse6 (not (<= 7 |old(~a15~0)|))) (.cse2 (not (<= |old(~a15~0)| 8))) (.cse9 (= ~a12~0 |old(~a12~0)|)) (.cse13 (= ~a21~0 |old(~a21~0)|)) (.cse11 (= ~a15~0 |old(~a15~0)|))) (let ((.cse1 (not (<= (+ |old(~a12~0)| 49) 0))) (.cse7 (= 6 |old(~a21~0)|)) (.cse4 (and .cse9 (= ~a24~0 |old(~a24~0)|) .cse13 .cse11)) (.cse8 (and (or (not (<= 7 |old(~a21~0)|)) .cse2) (or .cse6 .cse2))) (.cse12 (not (<= |old(~a12~0)| 11))) (.cse0 (not (= 1 |old(~a24~0)|))) (.cse5 (not (<= |old(~a15~0)| 5))) (.cse3 (and .cse9 .cse10 .cse13 .cse11))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse5) (or .cse0 (not (<= 19 |old(~a12~0)|)) .cse6 .cse3) (or .cse0 .cse7 .cse8 .cse3) (or .cse0 (and .cse9 .cse10 .cse11 (= 8 ~a21~0)) (not (<= |old(~a21~0)| 8)) (not (<= 8 |old(~a21~0)|)) (not (= 9 |old(~a15~0)|))) (or .cse4 .cse7 (= 10 |old(~a21~0)|) .cse5) (or .cse0 (forall ((v_~a12~0_448 Int)) (or (not (<= |old(~a12~0)| (div (+ v_~a12~0_448 366333) 5))) (not (<= v_~a12~0_448 80)) (not (< 11 v_~a12~0_448)) (not (= (mod (+ v_~a12~0_448 3) 5) 0)))) (not (<= 13 |old(~a12~0)|)) .cse2 .cse3) (or .cse0 .cse4 .cse8 .cse12) (or .cse0 (not (<= 10 |old(~a21~0)|)) .cse12 .cse3) (or .cse0 .cse5 .cse3)))) [2020-07-07 11:34:48,830 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-07-07 11:34:48,830 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-07-07 11:34:48,830 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,830 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,831 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,831 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-07 11:34:48,831 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-07 11:34:48,831 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-07 11:34:48,831 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-07-07 11:34:48,831 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-07-07 11:34:48,831 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-07-07 11:34:48,831 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-07-07 11:34:48,831 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-07-07 11:34:48,831 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,832 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,832 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,832 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-07-07 11:34:48,832 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-07-07 11:34:48,832 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-07 11:34:48,832 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-07 11:34:48,832 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-07 11:34:48,832 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-07-07 11:34:48,832 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-07-07 11:34:48,833 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-07-07 11:34:48,833 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,833 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,833 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,833 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-07-07 11:34:48,833 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-07 11:34:48,833 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-07 11:34:48,833 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-07 11:34:48,833 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-07-07 11:34:48,833 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-07-07 11:34:48,834 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-07-07 11:34:48,834 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-07-07 11:34:48,834 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,834 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,834 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,834 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-07-07 11:34:48,834 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-07 11:34:48,834 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-07 11:34:48,834 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-07 11:34:48,834 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-07-07 11:34:48,835 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-07-07 11:34:48,835 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-07-07 11:34:48,835 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-07-07 11:34:48,835 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,835 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,835 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-07-07 11:34:48,835 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-07 11:34:48,835 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-07 11:34:48,835 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-07-07 11:34:48,835 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-07-07 11:34:48,836 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-07-07 11:34:48,836 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-07-07 11:34:48,836 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-07-07 11:34:48,836 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 127) no Hoare annotation was computed. [2020-07-07 11:34:48,836 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,836 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,836 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-07-07 11:34:48,836 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-07 11:34:48,837 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-07 11:34:48,837 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-07-07 11:34:48,837 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-07-07 11:34:48,837 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-07-07 11:34:48,837 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,837 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,837 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-07-07 11:34:48,837 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-07-07 11:34:48,837 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-07 11:34:48,838 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-07 11:34:48,838 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-07-07 11:34:48,838 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-07-07 11:34:48,838 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-07-07 11:34:48,838 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-07-07 11:34:48,838 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,838 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,838 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-07-07 11:34:48,838 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-07-07 11:34:48,839 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-07 11:34:48,839 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-07 11:34:48,839 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-07-07 11:34:48,839 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-07-07 11:34:48,839 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-07-07 11:34:48,839 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,839 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,839 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,839 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-07-07 11:34:48,840 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-07-07 11:34:48,840 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-07 11:34:48,840 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-07 11:34:48,840 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-07-07 11:34:48,840 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-07-07 11:34:48,840 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,840 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,840 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-07 11:34:48,840 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,841 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-07-07 11:34:48,841 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-07-07 11:34:48,841 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-07-07 11:34:48,841 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-07 11:34:48,841 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-07 11:34:48,841 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-07 11:34:48,841 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-07-07 11:34:48,841 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-07-07 11:34:48,841 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-07-07 11:34:48,842 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-07-07 11:34:48,842 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,842 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,842 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,842 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-07-07 11:34:48,842 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-07 11:34:48,842 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-07 11:34:48,842 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-07 11:34:48,842 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-07-07 11:34:48,842 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-07-07 11:34:48,843 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-07-07 11:34:48,843 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-07-07 11:34:48,843 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,843 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,843 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,843 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-07-07 11:34:48,843 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-07-07 11:34:48,843 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-07 11:34:48,843 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-07 11:34:48,843 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-07 11:34:48,844 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-07-07 11:34:48,844 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-07-07 11:34:48,844 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-07-07 11:34:48,844 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,844 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,844 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,844 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-07-07 11:34:48,844 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-07 11:34:48,844 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-07 11:34:48,844 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-07 11:34:48,845 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-07-07 11:34:48,845 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-07-07 11:34:48,845 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-07-07 11:34:48,845 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-07-07 11:34:48,845 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-07-07 11:34:48,845 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,845 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,845 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-07-07 11:34:48,845 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-07-07 11:34:48,845 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-07 11:34:48,846 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-07 11:34:48,846 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-07 11:34:48,846 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-07-07 11:34:48,846 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:34:48,846 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (= 8 ~a15~0) (= 1 ~a24~0) (<= 7 ~a21~0) (<= ~a21~0 7)) [2020-07-07 11:34:48,846 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 11:34:48,846 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:34:48,846 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 1 |old(~a24~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (not (= 8 |old(~a15~0)|)) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a21~0)| 7)) (and (= ~a12~0 |old(~a12~0)|) (<= ~a21~0 |old(~a21~0)|) (= 1 ~a24~0) (<= 7 ~a21~0) (= ~a15~0 |old(~a15~0)|))) [2020-07-07 11:34:48,847 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-07-07 11:34:48,847 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse8 (<= 7 ~a15~0)) (.cse7 (<= ~a15~0 8))) (let ((.cse2 (not (= 6 ~a21~0))) (.cse1 (not (= 10 ~a21~0))) (.cse0 (<= ~a15~0 5)) (.cse5 (<= (+ ~a12~0 49) 0)) (.cse3 (<= ~a12~0 11)) (.cse6 (or (and .cse8 .cse7) (and .cse7 (<= 7 ~a21~0)))) (.cse4 (= 1 ~a24~0))) (or (and .cse0 .cse1 .cse2) (not (= 1 |old(~a24~0)|)) (and .cse3 .cse4 (<= 10 ~a21~0)) (not (= 8 |old(~a15~0)|)) (and .cse5 .cse0) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a21~0)| 7)) (and (= 9 ~a15~0) .cse4 (= 8 ~a21~0)) (and .cse6 .cse4 .cse2) (and (exists ((v_~a12~0_448 Int)) (and (<= ~a12~0 (div (+ v_~a12~0_448 366333) 5)) (<= v_~a12~0_448 80) (< 11 v_~a12~0_448) (= (mod (+ v_~a12~0_448 3) 5) 0))) .cse4 .cse7 (<= 13 ~a12~0)) (and (or (and (not (= 9 ~a21~0)) .cse1) (< 80 ~a12~0)) .cse8 .cse4 (<= 19 ~a12~0)) (and .cse0 .cse4) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse5 .cse4 .cse7) (and .cse3 .cse6 .cse4)))) [2020-07-07 11:34:48,847 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-07 11:34:48,847 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-07-07 11:34:48,848 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse8 (<= 7 ~a15~0)) (.cse7 (<= ~a15~0 8))) (let ((.cse2 (not (= 6 ~a21~0))) (.cse1 (not (= 10 ~a21~0))) (.cse0 (<= ~a15~0 5)) (.cse5 (<= (+ ~a12~0 49) 0)) (.cse3 (<= ~a12~0 11)) (.cse6 (or (and .cse8 .cse7) (and .cse7 (<= 7 ~a21~0)))) (.cse4 (= 1 ~a24~0))) (or (and .cse0 .cse1 .cse2) (not (= 1 |old(~a24~0)|)) (and .cse3 .cse4 (<= 10 ~a21~0)) (not (= 8 |old(~a15~0)|)) (and .cse5 .cse0) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a21~0)| 7)) (and (= 9 ~a15~0) .cse4 (= 8 ~a21~0)) (and .cse6 .cse4 .cse2) (and (exists ((v_~a12~0_448 Int)) (and (<= ~a12~0 (div (+ v_~a12~0_448 366333) 5)) (<= v_~a12~0_448 80) (< 11 v_~a12~0_448) (= (mod (+ v_~a12~0_448 3) 5) 0))) .cse4 .cse7 (<= 13 ~a12~0)) (and (or (and (not (= 9 ~a21~0)) .cse1) (< 80 ~a12~0)) .cse8 .cse4 (<= 19 ~a12~0)) (and .cse0 .cse4) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse5 .cse4 .cse7) (and .cse3 .cse6 .cse4)))) [2020-07-07 11:34:48,848 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-07-07 11:34:48,859 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-07 11:34:48,860 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-07 11:34:48,860 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-07 11:34:48,861 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-07 11:34:48,870 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-07 11:34:48,870 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-07 11:34:48,870 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-07 11:34:48,870 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-07 11:34:48,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:34:48 BoogieIcfgContainer [2020-07-07 11:34:48,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:34:48,875 INFO L168 Benchmark]: Toolchain (without parser) took 352243.11 ms. Allocated memory was 143.1 MB in the beginning and 2.5 GB in the end (delta: 2.4 GB). Free memory was 99.2 MB in the beginning and 1.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2020-07-07 11:34:48,876 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-07 11:34:48,877 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1027.07 ms. Allocated memory was 143.1 MB in the beginning and 203.9 MB in the end (delta: 60.8 MB). Free memory was 98.8 MB in the beginning and 165.9 MB in the end (delta: -67.1 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2020-07-07 11:34:48,877 INFO L168 Benchmark]: Boogie Preprocessor took 167.25 ms. Allocated memory is still 203.9 MB. Free memory was 165.9 MB in the beginning and 160.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-07-07 11:34:48,878 INFO L168 Benchmark]: RCFGBuilder took 1570.93 ms. Allocated memory was 203.9 MB in the beginning and 232.8 MB in the end (delta: 28.8 MB). Free memory was 160.6 MB in the beginning and 154.4 MB in the end (delta: 6.2 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2020-07-07 11:34:48,878 INFO L168 Benchmark]: TraceAbstraction took 349473.46 ms. Allocated memory was 232.8 MB in the beginning and 2.5 GB in the end (delta: 2.3 GB). Free memory was 154.4 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2020-07-07 11:34:48,881 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1027.07 ms. Allocated memory was 143.1 MB in the beginning and 203.9 MB in the end (delta: 60.8 MB). Free memory was 98.8 MB in the beginning and 165.9 MB in the end (delta: -67.1 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 167.25 ms. Allocated memory is still 203.9 MB. Free memory was 165.9 MB in the beginning and 160.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1570.93 ms. Allocated memory was 203.9 MB in the beginning and 232.8 MB in the end (delta: 28.8 MB). Free memory was 160.6 MB in the beginning and 154.4 MB in the end (delta: 6.2 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 349473.46 ms. Allocated memory was 232.8 MB in the beginning and 2.5 GB in the end (delta: 2.3 GB). Free memory was 154.4 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 127]: 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: 880]: Loop Invariant [2020-07-07 11:34:48,888 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-07 11:34:48,888 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-07 11:34:48,888 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-07 11:34:48,888 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-07 11:34:48,890 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-07 11:34:48,890 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-07 11:34:48,890 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] [2020-07-07 11:34:48,890 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_448,QUANTIFIED] Derived loop invariant: (((((((((((((((a15 <= 5 && !(10 == a21)) && !(6 == a21)) || !(1 == \old(a24))) || ((a12 <= 11 && 1 == a24) && 10 <= a21)) || !(8 == \old(a15))) || (a12 + 49 <= 0 && a15 <= 5)) || !(7 <= \old(a21))) || !(\old(a21) <= 7)) || ((9 == a15 && 1 == a24) && 8 == a21)) || ((((7 <= a15 && a15 <= 8) || (a15 <= 8 && 7 <= a21)) && 1 == a24) && !(6 == a21))) || ((((\exists v_~a12~0_448 : int :: ((a12 <= (v_~a12~0_448 + 366333) / 5 && v_~a12~0_448 <= 80) && 11 < v_~a12~0_448) && (v_~a12~0_448 + 3) % 5 == 0) && 1 == a24) && a15 <= 8) && 13 <= a12)) || (((((!(9 == a21) && !(10 == a21)) || 80 < a12) && 7 <= a15) && 1 == a24) && 19 <= a12)) || (a15 <= 5 && 1 == a24)) || !(\old(a12) + 49 <= 0)) || ((a12 + 49 <= 0 && 1 == a24) && a15 <= 8)) || ((a12 <= 11 && ((7 <= a15 && a15 <= 8) || (a15 <= 8 && 7 <= a21))) && 1 == a24) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 327.5s, OverallIterations: 19, TraceHistogramMax: 14, AutomataDifference: 279.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 21.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1250 SDtfs, 34796 SDslu, 2125 SDs, 0 SdLazy, 44402 SolverSat, 5519 SolverUnsat, 60 SolverUnknown, 0 SolverNotchecked, 169.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12604 GetRequests, 12056 SyntacticMatches, 16 SemanticMatches, 532 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7995 ImplicationChecksByTransitivity, 100.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6494occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 19 MinimizatonAttempts, 7420 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 382 PreInvPairs, 548 NumberOfFragments, 769 HoareAnnotationTreeSize, 382 FomulaSimplifications, 13193171 FormulaSimplificationTreeSizeReduction, 4.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 558683 FormulaSimplificationTreeSizeReductionInter, 17.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 27.1s InterpolantComputationTime, 23523 NumberOfCodeBlocks, 23523 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 23488 ConstructedInterpolants, 12 QuantifiedInterpolants, 53263757 SizeOfPredicates, 15 NumberOfNonLiveVariables, 16919 ConjunctsInSsa, 127 ConjunctsInUnsatCore, 35 InterpolantComputations, 8 PerfectInterpolantSequences, 70516/72742 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...