/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:36:03,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:36:03,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:36:03,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:36:03,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:36:03,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:36:03,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:36:03,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:36:03,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:36:03,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:36:03,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:36:03,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:36:03,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:36:03,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:36:03,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:36:03,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:36:03,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:36:03,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:36:03,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:36:03,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:36:03,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:36:03,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:36:03,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:36:03,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:36:03,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 11:36:03,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:36:03,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:36:03,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:36:03,649 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 [2020-07-20 11:36:03,688 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:36:03,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:36:03,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:36:03,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:36:03,694 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:36:03,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:36:03,694 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:36:03,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:36:03,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:36:03,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:36:03,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:36:03,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:36:03,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:36:03,695 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:36:03,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:36:03,696 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:36:03,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:36:03,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:36:03,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:36:03,697 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:36:03,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:36:03,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:36:03,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:36:03,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:36:03,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:36:03,698 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:36:03,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:03,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:36:03,700 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:36:03,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 11:36:04,006 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:36:04,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:36:04,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:36:04,025 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:36:04,025 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:36:04,026 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-07-20 11:36:04,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b71855a4/71df7ff3832f47a7abea5d3b5ae571c9/FLAG84db962ad [2020-07-20 11:36:04,665 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:36:04,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2020-07-20 11:36:04,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b71855a4/71df7ff3832f47a7abea5d3b5ae571c9/FLAG84db962ad [2020-07-20 11:36:04,992 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b71855a4/71df7ff3832f47a7abea5d3b5ae571c9 [2020-07-20 11:36:05,003 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:36:05,005 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:36:05,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:36:05,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:36:05,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:36:05,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:36:04" (1/1) ... [2020-07-20 11:36:05,014 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31822e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:05, skipping insertion in model container [2020-07-20 11:36:05,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:36:04" (1/1) ... [2020-07-20 11:36:05,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:36:05,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:36:05,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:36:05,675 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:36:05,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:36:05,850 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:36:05,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:05 WrapperNode [2020-07-20 11:36:05,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:36:05,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:36:05,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:36:05,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:36:05,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:05" (1/1) ... [2020-07-20 11:36:05,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:05" (1/1) ... [2020-07-20 11:36:05,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:05" (1/1) ... [2020-07-20 11:36:05,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:05" (1/1) ... [2020-07-20 11:36:05,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:05" (1/1) ... [2020-07-20 11:36:05,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:05" (1/1) ... [2020-07-20 11:36:05,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:05" (1/1) ... [2020-07-20 11:36:05,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:36:05,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:36:05,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:36:05,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:36:05,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:05" (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 [2020-07-20 11:36:06,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:36:06,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:36:06,051 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 11:36:06,052 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:36:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 11:36:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:36:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:36:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 11:36:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:36:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:36:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:36:07,199 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:36:07,200 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 11:36:07,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:36:07 BoogieIcfgContainer [2020-07-20 11:36:07,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:36:07,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:36:07,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:36:07,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:36:07,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:36:04" (1/3) ... [2020-07-20 11:36:07,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334eabbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:36:07, skipping insertion in model container [2020-07-20 11:36:07,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:36:05" (2/3) ... [2020-07-20 11:36:07,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334eabbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:36:07, skipping insertion in model container [2020-07-20 11:36:07,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:36:07" (3/3) ... [2020-07-20 11:36:07,215 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label41.c [2020-07-20 11:36:07,226 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:36:07,234 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:36:07,250 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:36:07,278 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:36:07,278 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:36:07,278 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:36:07,278 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:36:07,278 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:36:07,279 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:36:07,279 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:36:07,279 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:36:07,303 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 11:36:07,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-07-20 11:36:07,314 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:07,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:07,316 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:07,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:07,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1961179338, now seen corresponding path program 1 times [2020-07-20 11:36:07,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:07,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2012072709] [2020-07-20 11:36:07,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:07,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:36:07,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:07,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:36:07,597 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:07,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2012072709] [2020-07-20 11:36:07,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:07,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:36:07,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154227443] [2020-07-20 11:36:07,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:36:07,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:07,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:36:07,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:07,632 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 11:36:08,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:08,579 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-20 11:36:08,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:36:08,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-07-20 11:36:08,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:08,598 INFO L225 Difference]: With dead ends: 619 [2020-07-20 11:36:08,598 INFO L226 Difference]: Without dead ends: 321 [2020-07-20 11:36:08,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:08,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-20 11:36:08,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-20 11:36:08,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-20 11:36:08,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-20 11:36:08,677 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 96 [2020-07-20 11:36:08,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:08,678 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-20 11:36:08,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:36:08,679 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-20 11:36:08,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-07-20 11:36:08,684 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:08,685 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:08,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:08,899 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:08,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:08,900 INFO L82 PathProgramCache]: Analyzing trace with hash -263747545, now seen corresponding path program 1 times [2020-07-20 11:36:08,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:08,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19733790] [2020-07-20 11:36:08,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:08,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:08,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:09,019 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:36:09,019 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:09,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19733790] [2020-07-20 11:36:09,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:09,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:36:09,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016598067] [2020-07-20 11:36:09,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:36:09,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:09,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:36:09,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:09,023 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 3 states. [2020-07-20 11:36:09,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:09,649 INFO L93 Difference]: Finished difference Result 782 states and 1068 transitions. [2020-07-20 11:36:09,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:36:09,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-07-20 11:36:09,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:09,656 INFO L225 Difference]: With dead ends: 782 [2020-07-20 11:36:09,656 INFO L226 Difference]: Without dead ends: 469 [2020-07-20 11:36:09,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:09,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-20 11:36:09,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2020-07-20 11:36:09,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-07-20 11:36:09,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 600 transitions. [2020-07-20 11:36:09,688 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 600 transitions. Word has length 105 [2020-07-20 11:36:09,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:09,689 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 600 transitions. [2020-07-20 11:36:09,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:36:09,689 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 600 transitions. [2020-07-20 11:36:09,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-07-20 11:36:09,693 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:09,694 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:09,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:09,909 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:09,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:09,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1318994351, now seen corresponding path program 1 times [2020-07-20 11:36:09,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:09,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [878060350] [2020-07-20 11:36:09,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:10,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 11:36:10,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:10,118 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 11:36:10,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:10,212 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 11:36:10,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [878060350] [2020-07-20 11:36:10,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 11:36:10,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-20 11:36:10,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860077574] [2020-07-20 11:36:10,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 11:36:10,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:10,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 11:36:10,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:36:10,216 INFO L87 Difference]: Start difference. First operand 469 states and 600 transitions. Second operand 4 states. [2020-07-20 11:36:10,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:10,919 INFO L93 Difference]: Finished difference Result 1386 states and 1800 transitions. [2020-07-20 11:36:10,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 11:36:10,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2020-07-20 11:36:10,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:10,930 INFO L225 Difference]: With dead ends: 1386 [2020-07-20 11:36:10,931 INFO L226 Difference]: Without dead ends: 923 [2020-07-20 11:36:10,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 226 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:36:10,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-07-20 11:36:10,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 923. [2020-07-20 11:36:10,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2020-07-20 11:36:10,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1177 transitions. [2020-07-20 11:36:10,978 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1177 transitions. Word has length 117 [2020-07-20 11:36:10,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:10,979 INFO L479 AbstractCegarLoop]: Abstraction has 923 states and 1177 transitions. [2020-07-20 11:36:10,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 11:36:10,980 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1177 transitions. [2020-07-20 11:36:10,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-20 11:36:10,986 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:10,987 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:11,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:11,200 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:11,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:11,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1902832748, now seen corresponding path program 1 times [2020-07-20 11:36:11,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:11,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615123718] [2020-07-20 11:36:11,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:11,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:11,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:11,352 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 11:36:11,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:11,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615123718] [2020-07-20 11:36:11,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:11,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:36:11,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63108596] [2020-07-20 11:36:11,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:36:11,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:11,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:36:11,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:11,355 INFO L87 Difference]: Start difference. First operand 923 states and 1177 transitions. Second operand 3 states. [2020-07-20 11:36:12,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:12,015 INFO L93 Difference]: Finished difference Result 2130 states and 2809 transitions. [2020-07-20 11:36:12,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:36:12,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-07-20 11:36:12,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:12,035 INFO L225 Difference]: With dead ends: 2130 [2020-07-20 11:36:12,035 INFO L226 Difference]: Without dead ends: 1213 [2020-07-20 11:36:12,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:12,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2020-07-20 11:36:12,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1211. [2020-07-20 11:36:12,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2020-07-20 11:36:12,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1581 transitions. [2020-07-20 11:36:12,108 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1581 transitions. Word has length 125 [2020-07-20 11:36:12,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:12,109 INFO L479 AbstractCegarLoop]: Abstraction has 1211 states and 1581 transitions. [2020-07-20 11:36:12,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:36:12,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1581 transitions. [2020-07-20 11:36:12,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-20 11:36:12,125 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:12,125 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:12,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:12,340 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:12,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:12,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1880125214, now seen corresponding path program 1 times [2020-07-20 11:36:12,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:12,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231314407] [2020-07-20 11:36:12,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:12,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:12,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:12,480 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 11:36:12,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:12,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231314407] [2020-07-20 11:36:12,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:12,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:36:12,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005161918] [2020-07-20 11:36:12,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:36:12,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:12,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:36:12,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:12,483 INFO L87 Difference]: Start difference. First operand 1211 states and 1581 transitions. Second operand 3 states. [2020-07-20 11:36:13,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:13,132 INFO L93 Difference]: Finished difference Result 3595 states and 4812 transitions. [2020-07-20 11:36:13,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:36:13,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-07-20 11:36:13,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:13,148 INFO L225 Difference]: With dead ends: 3595 [2020-07-20 11:36:13,148 INFO L226 Difference]: Without dead ends: 2390 [2020-07-20 11:36:13,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:36:13,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2020-07-20 11:36:13,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2380. [2020-07-20 11:36:13,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2380 states. [2020-07-20 11:36:13,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 3112 transitions. [2020-07-20 11:36:13,244 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 3112 transitions. Word has length 131 [2020-07-20 11:36:13,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:13,244 INFO L479 AbstractCegarLoop]: Abstraction has 2380 states and 3112 transitions. [2020-07-20 11:36:13,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:36:13,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 3112 transitions. [2020-07-20 11:36:13,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-20 11:36:13,251 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:13,253 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:13,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:13,467 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:13,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:13,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1978590773, now seen corresponding path program 1 times [2020-07-20 11:36:13,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:13,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111387417] [2020-07-20 11:36:13,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:13,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:13,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:13,624 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:36:13,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:13,743 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:36:13,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111387417] [2020-07-20 11:36:13,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:13,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:36:13,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639407229] [2020-07-20 11:36:13,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:36:13,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:13,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:36:13,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:36:13,748 INFO L87 Difference]: Start difference. First operand 2380 states and 3112 transitions. Second operand 6 states. [2020-07-20 11:36:14,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:14,730 INFO L93 Difference]: Finished difference Result 5458 states and 7301 transitions. [2020-07-20 11:36:14,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:36:14,730 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2020-07-20 11:36:14,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:14,758 INFO L225 Difference]: With dead ends: 5458 [2020-07-20 11:36:14,758 INFO L226 Difference]: Without dead ends: 3084 [2020-07-20 11:36:14,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 282 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:36:14,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2020-07-20 11:36:14,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 3036. [2020-07-20 11:36:14,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3036 states. [2020-07-20 11:36:14,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 3925 transitions. [2020-07-20 11:36:14,878 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 3925 transitions. Word has length 143 [2020-07-20 11:36:14,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:14,925 INFO L479 AbstractCegarLoop]: Abstraction has 3036 states and 3925 transitions. [2020-07-20 11:36:14,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:36:14,925 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 3925 transitions. [2020-07-20 11:36:14,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-20 11:36:14,933 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:14,934 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:15,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:15,146 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:15,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:15,147 INFO L82 PathProgramCache]: Analyzing trace with hash 605629041, now seen corresponding path program 1 times [2020-07-20 11:36:15,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:15,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994718177] [2020-07-20 11:36:15,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:15,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:15,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:15,276 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 11:36:15,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:15,345 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 11:36:15,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994718177] [2020-07-20 11:36:15,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:15,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:36:15,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031081504] [2020-07-20 11:36:15,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:36:15,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:15,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:36:15,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:36:15,348 INFO L87 Difference]: Start difference. First operand 3036 states and 3925 transitions. Second operand 6 states. [2020-07-20 11:36:16,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:16,166 INFO L93 Difference]: Finished difference Result 6128 states and 7987 transitions. [2020-07-20 11:36:16,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:36:16,173 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2020-07-20 11:36:16,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:16,193 INFO L225 Difference]: With dead ends: 6128 [2020-07-20 11:36:16,194 INFO L226 Difference]: Without dead ends: 3098 [2020-07-20 11:36:16,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 286 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:36:16,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3098 states. [2020-07-20 11:36:16,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3098 to 3074. [2020-07-20 11:36:16,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3074 states. [2020-07-20 11:36:16,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 3718 transitions. [2020-07-20 11:36:16,357 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 3718 transitions. Word has length 145 [2020-07-20 11:36:16,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:16,358 INFO L479 AbstractCegarLoop]: Abstraction has 3074 states and 3718 transitions. [2020-07-20 11:36:16,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:36:16,358 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 3718 transitions. [2020-07-20 11:36:16,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-20 11:36:16,368 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:16,368 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:16,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:16,583 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:16,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:16,584 INFO L82 PathProgramCache]: Analyzing trace with hash -183412167, now seen corresponding path program 1 times [2020-07-20 11:36:16,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:16,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357533137] [2020-07-20 11:36:16,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:16,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 11:36:16,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:16,717 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-20 11:36:16,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:36:16,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357533137] [2020-07-20 11:36:16,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:36:16,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:36:16,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200423612] [2020-07-20 11:36:16,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:36:16,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:16,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:36:16,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:36:16,720 INFO L87 Difference]: Start difference. First operand 3074 states and 3718 transitions. Second operand 5 states. [2020-07-20 11:36:17,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:17,482 INFO L93 Difference]: Finished difference Result 8135 states and 10324 transitions. [2020-07-20 11:36:17,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:36:17,483 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2020-07-20 11:36:17,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:17,513 INFO L225 Difference]: With dead ends: 8135 [2020-07-20 11:36:17,514 INFO L226 Difference]: Without dead ends: 5067 [2020-07-20 11:36:17,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:36:17,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5067 states. [2020-07-20 11:36:17,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5067 to 4995. [2020-07-20 11:36:17,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4995 states. [2020-07-20 11:36:17,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4995 states to 4995 states and 5940 transitions. [2020-07-20 11:36:17,716 INFO L78 Accepts]: Start accepts. Automaton has 4995 states and 5940 transitions. Word has length 147 [2020-07-20 11:36:17,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:17,716 INFO L479 AbstractCegarLoop]: Abstraction has 4995 states and 5940 transitions. [2020-07-20 11:36:17,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:36:17,716 INFO L276 IsEmpty]: Start isEmpty. Operand 4995 states and 5940 transitions. [2020-07-20 11:36:17,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-20 11:36:17,729 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:17,729 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-20 11:36:17,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:17,944 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:17,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:17,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1998620505, now seen corresponding path program 1 times [2020-07-20 11:36:17,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:17,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1733030720] [2020-07-20 11:36:17,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:18,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:18,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:18,103 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 11:36:18,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:18,187 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 11:36:18,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1733030720] [2020-07-20 11:36:18,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:18,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:36:18,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209757274] [2020-07-20 11:36:18,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:36:18,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:18,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:36:18,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:36:18,189 INFO L87 Difference]: Start difference. First operand 4995 states and 5940 transitions. Second operand 6 states. [2020-07-20 11:36:18,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:18,710 INFO L93 Difference]: Finished difference Result 9581 states and 11681 transitions. [2020-07-20 11:36:18,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 11:36:18,711 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2020-07-20 11:36:18,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:18,734 INFO L225 Difference]: With dead ends: 9581 [2020-07-20 11:36:18,734 INFO L226 Difference]: Without dead ends: 4592 [2020-07-20 11:36:18,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 364 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:36:18,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4592 states. [2020-07-20 11:36:18,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4592 to 4524. [2020-07-20 11:36:18,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4524 states. [2020-07-20 11:36:18,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 5219 transitions. [2020-07-20 11:36:18,861 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 5219 transitions. Word has length 185 [2020-07-20 11:36:18,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:18,862 INFO L479 AbstractCegarLoop]: Abstraction has 4524 states and 5219 transitions. [2020-07-20 11:36:18,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:36:18,862 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 5219 transitions. [2020-07-20 11:36:18,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-07-20 11:36:18,877 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:18,878 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 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] [2020-07-20 11:36:19,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:19,092 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:19,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:19,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1061980931, now seen corresponding path program 1 times [2020-07-20 11:36:19,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:19,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63243812] [2020-07-20 11:36:19,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:19,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:19,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:19,274 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-20 11:36:19,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:19,365 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 96 proven. 28 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 11:36:19,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [63243812] [2020-07-20 11:36:19,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:19,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:36:19,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790241817] [2020-07-20 11:36:19,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:36:19,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:19,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:36:19,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:36:19,369 INFO L87 Difference]: Start difference. First operand 4524 states and 5219 transitions. Second operand 6 states. [2020-07-20 11:36:20,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:20,125 INFO L93 Difference]: Finished difference Result 8599 states and 9962 transitions. [2020-07-20 11:36:20,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:36:20,126 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 190 [2020-07-20 11:36:20,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:20,139 INFO L225 Difference]: With dead ends: 8599 [2020-07-20 11:36:20,139 INFO L226 Difference]: Without dead ends: 3608 [2020-07-20 11:36:20,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 376 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:36:20,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3608 states. [2020-07-20 11:36:20,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3608 to 3604. [2020-07-20 11:36:20,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3604 states. [2020-07-20 11:36:20,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3604 states to 3604 states and 4020 transitions. [2020-07-20 11:36:20,232 INFO L78 Accepts]: Start accepts. Automaton has 3604 states and 4020 transitions. Word has length 190 [2020-07-20 11:36:20,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:20,233 INFO L479 AbstractCegarLoop]: Abstraction has 3604 states and 4020 transitions. [2020-07-20 11:36:20,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:36:20,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3604 states and 4020 transitions. [2020-07-20 11:36:20,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-07-20 11:36:20,242 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:20,243 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 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] [2020-07-20 11:36:20,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:20,457 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:20,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:20,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1021169547, now seen corresponding path program 1 times [2020-07-20 11:36:20,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:20,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136325320] [2020-07-20 11:36:20,458 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:20,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:20,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:20,601 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:36:20,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:20,674 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:36:20,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136325320] [2020-07-20 11:36:20,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:20,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:36:20,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219395416] [2020-07-20 11:36:20,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:36:20,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:20,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:36:20,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:36:20,677 INFO L87 Difference]: Start difference. First operand 3604 states and 4020 transitions. Second operand 7 states. [2020-07-20 11:36:21,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:21,849 INFO L93 Difference]: Finished difference Result 8496 states and 9470 transitions. [2020-07-20 11:36:21,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:36:21,854 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-07-20 11:36:21,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:21,893 INFO L225 Difference]: With dead ends: 8496 [2020-07-20 11:36:21,893 INFO L226 Difference]: Without dead ends: 5042 [2020-07-20 11:36:21,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 383 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:36:21,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5042 states. [2020-07-20 11:36:22,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5042 to 3020. [2020-07-20 11:36:22,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3020 states. [2020-07-20 11:36:22,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3020 states to 3020 states and 3247 transitions. [2020-07-20 11:36:22,051 INFO L78 Accepts]: Start accepts. Automaton has 3020 states and 3247 transitions. Word has length 194 [2020-07-20 11:36:22,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:22,052 INFO L479 AbstractCegarLoop]: Abstraction has 3020 states and 3247 transitions. [2020-07-20 11:36:22,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:36:22,052 INFO L276 IsEmpty]: Start isEmpty. Operand 3020 states and 3247 transitions. [2020-07-20 11:36:22,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-07-20 11:36:22,065 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:22,066 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-20 11:36:22,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:22,280 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:22,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:22,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1298715091, now seen corresponding path program 1 times [2020-07-20 11:36:22,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:22,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14279853] [2020-07-20 11:36:22,282 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:22,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:36:22,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:22,546 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 145 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:36:22,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:22,684 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 145 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 11:36:22,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14279853] [2020-07-20 11:36:22,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:22,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:36:22,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991955832] [2020-07-20 11:36:22,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:36:22,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:22,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:36:22,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:36:22,688 INFO L87 Difference]: Start difference. First operand 3020 states and 3247 transitions. Second operand 7 states. [2020-07-20 11:36:24,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:24,021 INFO L93 Difference]: Finished difference Result 6169 states and 6639 transitions. [2020-07-20 11:36:24,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 11:36:24,024 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2020-07-20 11:36:24,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:24,031 INFO L225 Difference]: With dead ends: 6169 [2020-07-20 11:36:24,031 INFO L226 Difference]: Without dead ends: 2855 [2020-07-20 11:36:24,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 397 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:36:24,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2020-07-20 11:36:24,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 2853. [2020-07-20 11:36:24,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2853 states. [2020-07-20 11:36:24,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 3028 transitions. [2020-07-20 11:36:24,118 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 3028 transitions. Word has length 201 [2020-07-20 11:36:24,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:24,119 INFO L479 AbstractCegarLoop]: Abstraction has 2853 states and 3028 transitions. [2020-07-20 11:36:24,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:36:24,119 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 3028 transitions. [2020-07-20 11:36:24,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-07-20 11:36:24,127 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:36:24,127 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:36:24,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:24,340 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:36:24,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:36:24,341 INFO L82 PathProgramCache]: Analyzing trace with hash 15833799, now seen corresponding path program 1 times [2020-07-20 11:36:24,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:36:24,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1517173362] [2020-07-20 11:36:24,341 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:36:24,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:36:24,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:36:24,498 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-07-20 11:36:24,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:36:24,574 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 137 proven. 54 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-07-20 11:36:24,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1517173362] [2020-07-20 11:36:24,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:36:24,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:36:24,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026584413] [2020-07-20 11:36:24,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:36:24,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:36:24,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:36:24,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:36:24,576 INFO L87 Difference]: Start difference. First operand 2853 states and 3028 transitions. Second operand 7 states. [2020-07-20 11:36:25,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:36:25,703 INFO L93 Difference]: Finished difference Result 5392 states and 5716 transitions. [2020-07-20 11:36:25,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:36:25,704 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 226 [2020-07-20 11:36:25,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:36:25,704 INFO L225 Difference]: With dead ends: 5392 [2020-07-20 11:36:25,704 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:36:25,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:36:25,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:36:25,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:36:25,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:36:25,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:36:25,714 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 226 [2020-07-20 11:36:25,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:36:25,714 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:36:25,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:36:25,714 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:36:25,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:36:25,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:36:25,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:36:26,481 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 156 [2020-07-20 11:36:26,645 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 156 [2020-07-20 11:36:28,141 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 159 DAG size of output: 93 [2020-07-20 11:36:29,018 WARN L193 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 67 [2020-07-20 11:36:29,842 WARN L193 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 67 [2020-07-20 11:36:29,846 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:36:29,847 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-20 11:36:29,847 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:36:29,847 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,847 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,847 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,847 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,847 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,848 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 11:36:29,848 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 11:36:29,848 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 11:36:29,848 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 11:36:29,848 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 11:36:29,848 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 11:36:29,848 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 11:36:29,848 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 11:36:29,848 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 11:36:29,848 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 11:36:29,848 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 11:36:29,848 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 11:36:29,848 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 11:36:29,849 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,849 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,849 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,849 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,849 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 11:36:29,849 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,849 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 11:36:29,850 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 11:36:29,850 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 11:36:29,850 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 11:36:29,850 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 11:36:29,850 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 11:36:29,850 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 11:36:29,850 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 11:36:29,851 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 11:36:29,851 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 11:36:29,851 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 11:36:29,851 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 11:36:29,851 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 11:36:29,851 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 11:36:29,851 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 11:36:29,851 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,851 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,852 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,852 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,852 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,852 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 442) no Hoare annotation was computed. [2020-07-20 11:36:29,852 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 11:36:29,852 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 11:36:29,852 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 11:36:29,853 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 11:36:29,853 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 11:36:29,853 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 11:36:29,853 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 11:36:29,853 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 11:36:29,853 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 11:36:29,853 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 11:36:29,853 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 11:36:29,853 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,854 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,854 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,854 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,854 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,854 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 11:36:29,854 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 11:36:29,854 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 11:36:29,854 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 11:36:29,854 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 11:36:29,854 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 11:36:29,854 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 11:36:29,855 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 11:36:29,855 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 11:36:29,855 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 11:36:29,855 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 11:36:29,855 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 11:36:29,855 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 11:36:29,855 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,855 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,855 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,855 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,856 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,856 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 11:36:29,856 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 11:36:29,856 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 11:36:29,856 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 11:36:29,856 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 11:36:29,856 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 11:36:29,856 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 11:36:29,856 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 11:36:29,856 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 11:36:29,856 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 11:36:29,856 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 11:36:29,856 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 11:36:29,857 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 11:36:29,857 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 11:36:29,857 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 11:36:29,857 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 11:36:29,857 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,857 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,857 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,857 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,857 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 11:36:29,857 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,857 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 11:36:29,857 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,858 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 11:36:29,858 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 11:36:29,858 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 11:36:29,858 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,858 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,858 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 11:36:29,858 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 11:36:29,858 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 11:36:29,858 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 11:36:29,858 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 11:36:29,858 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 11:36:29,858 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 11:36:29,859 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 11:36:29,859 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 11:36:29,859 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 11:36:29,859 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 11:36:29,859 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,859 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,859 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,859 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,859 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,859 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,859 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 11:36:29,859 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 11:36:29,859 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 11:36:29,859 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 11:36:29,860 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 11:36:29,860 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 11:36:29,860 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 11:36:29,860 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 11:36:29,860 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 11:36:29,860 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 11:36:29,860 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 11:36:29,860 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,860 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,860 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,861 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,861 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,861 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,861 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 11:36:29,861 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 11:36:29,861 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 11:36:29,861 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 11:36:29,861 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 11:36:29,861 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 11:36:29,862 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 11:36:29,862 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 11:36:29,862 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 11:36:29,862 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 11:36:29,862 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 11:36:29,862 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 11:36:29,862 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 11:36:29,862 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 11:36:29,862 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,862 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,863 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,863 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse24 (<= ~a11~0 0)) (.cse9 (<= ~a28~0 |old(~a28~0)|)) (.cse20 (<= ~a17~0 8)) (.cse19 (<= 8 ~a17~0)) (.cse11 (= ~a19~0 |old(~a19~0)|)) (.cse12 (<= |old(~a28~0)| ~a28~0)) (.cse26 (= 1 ~a25~0))) (let ((.cse4 (and .cse24 .cse9 .cse20 .cse19 .cse11 .cse12 .cse26)) (.cse21 (= ~a25~0 |old(~a25~0)|)) (.cse23 (<= ~a28~0 9)) (.cse22 (not (<= 9 |old(~a28~0)|))) (.cse1 (not (<= |old(~a28~0)| 9))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse7 (not (<= |old(~a28~0)| 7))) (.cse2 (not (<= 8 |old(~a17~0)|))) (.cse3 (not (= 1 |old(~a25~0)|))) (.cse5 (not (<= |old(~a17~0)| 8))) (.cse6 (not (<= |old(~a11~0)| 0))) (.cse14 (not (<= |old(~a28~0)| 10))) (.cse8 (<= ~a17~0 |old(~a17~0)|)) (.cse10 (or .cse24 (< 0 |old(~a11~0)|))) (.cse25 (<= ~a28~0 10)) (.cse16 (<= ~a25~0 0)) (.cse15 (not (<= |old(~a25~0)| 0))) (.cse18 (not (<= |old(~a19~0)| 0))) (.cse13 (not (<= |old(~a17~0)| 7))) (.cse17 (not (<= 10 |old(~a28~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (or .cse0 .cse7 (and .cse8 .cse9 .cse10 .cse11 .cse12) .cse13 .cse5) (or .cse0 .cse14 .cse15 .cse16 .cse17 .cse5) (or .cse0 .cse2 .cse3 (not (<= 11 |old(~a28~0)|)) .cse4 .cse5 .cse6) (or .cse1 .cse2 .cse18 (and .cse9 .cse19 .cse10 .cse20 .cse11 .cse21 .cse12) .cse5) (or .cse0 .cse22 (and .cse20 .cse19 .cse23 .cse11 .cse12 .cse21) .cse1 .cse2 .cse15 .cse5) (or .cse22 .cse1 .cse18 (and .cse8 .cse10 .cse23 .cse11 .cse12) .cse5) (or .cse0 .cse7 .cse15 (and .cse24 .cse9 .cse20 .cse11 .cse12 .cse21) .cse5 .cse6) (or .cse0 .cse14 (and .cse8 .cse10 .cse25 .cse11 .cse12) .cse17 .cse5) (or .cse0 .cse22 .cse1 .cse2 .cse3 (and .cse20 .cse19 .cse23 .cse11 .cse12 .cse26) .cse5) (or .cse0 .cse24 .cse22 .cse1 .cse2 .cse15 .cse5 .cse6) (or .cse0 .cse7 .cse2 .cse3 (and .cse9 .cse20 .cse19 .cse11 .cse12 .cse26) .cse5) (or (and .cse24 .cse20 .cse19 .cse25 .cse11 .cse12 .cse26) .cse14 .cse2 .cse3 .cse18 .cse5 .cse6) (or .cse14 (and .cse8 .cse10 .cse25 .cse16 .cse11 .cse12) .cse15 .cse18 .cse13 .cse17)))) [2020-07-20 11:36:29,863 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,863 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,864 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,864 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 11:36:29,864 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 11:36:29,864 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 11:36:29,864 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 11:36:29,864 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 11:36:29,864 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 11:36:29,864 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 11:36:29,864 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 11:36:29,865 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 11:36:29,865 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 11:36:29,865 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 11:36:29,865 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 11:36:29,865 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 11:36:29,865 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,865 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,865 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,866 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,866 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,866 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,866 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 11:36:29,866 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 11:36:29,866 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 11:36:29,866 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 11:36:29,866 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 11:36:29,866 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 11:36:29,866 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 11:36:29,866 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 11:36:29,867 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 11:36:29,867 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 11:36:29,867 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 11:36:29,867 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 11:36:29,867 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 11:36:29,867 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 11:36:29,867 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 11:36:29,867 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 11:36:29,867 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,867 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,867 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,867 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,867 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 11:36:29,867 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 11:36:29,868 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 11:36:29,868 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 11:36:29,868 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 11:36:29,868 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 11:36:29,868 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 11:36:29,868 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 11:36:29,868 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 11:36:29,868 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 11:36:29,868 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 11:36:29,868 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 11:36:29,868 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 11:36:29,868 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 11:36:29,868 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 11:36:29,868 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 11:36:29,868 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 11:36:29,869 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 11:36:29,869 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 11:36:29,869 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 11:36:29,869 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:36:29,869 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-20 11:36:29,869 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:36:29,869 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:36:29,869 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-20 11:36:29,869 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse7 (<= ~a11~0 0)) (.cse10 (<= ~a17~0 7)) (.cse4 (<= ~a19~0 |old(~a19~0)|)) (.cse5 (<= ~a28~0 7)) (.cse3 (<= ~a17~0 8)) (.cse11 (< 7 |old(~a17~0)|)) (.cse13 (<= ~a19~0 0)) (.cse14 (<= ~a28~0 9)) (.cse9 (<= ~a25~0 0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= 8 ~a17~0)) (.cse8 (<= ~a28~0 10)) (.cse12 (<= 9 ~a28~0)) (.cse6 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse7 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse8 .cse9 .cse10 .cse11 .cse12 .cse13) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse7 .cse2 (<= 1 ~a19~0) .cse4 .cse6) (and .cse1 .cse2 .cse14 .cse13) (and .cse1 .cse7 .cse2 .cse8 .cse13 .cse6) (and .cse0 .cse3 .cse8 (<= 10 ~a28~0)) (and .cse0 .cse3 .cse10 .cse4 .cse11 .cse5) (and .cse3 .cse14 .cse11 .cse12 .cse13) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse1 .cse2 .cse14 .cse9 .cse12) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse1 .cse2 .cse8 .cse12 .cse6) (not (<= |old(~a17~0)| 8)))) [2020-07-20 11:36:29,869 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 11:36:29,869 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 11:36:29,870 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse7 (<= ~a11~0 0)) (.cse10 (<= ~a17~0 7)) (.cse4 (<= ~a19~0 |old(~a19~0)|)) (.cse5 (<= ~a28~0 7)) (.cse3 (<= ~a17~0 8)) (.cse11 (< 7 |old(~a17~0)|)) (.cse13 (<= ~a19~0 0)) (.cse14 (<= ~a28~0 9)) (.cse9 (<= ~a25~0 0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= 8 ~a17~0)) (.cse8 (<= ~a28~0 10)) (.cse12 (<= 9 ~a28~0)) (.cse6 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse7 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse8 .cse9 .cse10 .cse11 .cse12 .cse13) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse7 .cse2 (<= 1 ~a19~0) .cse4 .cse6) (and .cse1 .cse2 .cse14 .cse13) (and .cse1 .cse7 .cse2 .cse8 .cse13 .cse6) (and .cse0 .cse3 .cse8 (<= 10 ~a28~0)) (and .cse0 .cse3 .cse10 .cse4 .cse11 .cse5) (and .cse3 .cse14 .cse11 .cse12 .cse13) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse1 .cse2 .cse14 .cse9 .cse12) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse1 .cse2 .cse8 .cse12 .cse6) (not (<= |old(~a17~0)| 8)))) [2020-07-20 11:36:29,870 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 11:36:29,870 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 11:36:29,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:36:29 BoogieIcfgContainer [2020-07-20 11:36:29,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:36:29,894 INFO L168 Benchmark]: Toolchain (without parser) took 24890.15 ms. Allocated memory was 139.5 MB in the beginning and 590.9 MB in the end (delta: 451.4 MB). Free memory was 102.9 MB in the beginning and 385.6 MB in the end (delta: -282.7 MB). Peak memory consumption was 427.6 MB. Max. memory is 7.1 GB. [2020-07-20 11:36:29,895 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 11:36:29,896 INFO L168 Benchmark]: CACSL2BoogieTranslator took 844.53 ms. Allocated memory was 139.5 MB in the beginning and 206.6 MB in the end (delta: 67.1 MB). Free memory was 102.5 MB in the beginning and 173.0 MB in the end (delta: -70.6 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2020-07-20 11:36:29,897 INFO L168 Benchmark]: Boogie Preprocessor took 102.38 ms. Allocated memory is still 206.6 MB. Free memory was 173.0 MB in the beginning and 168.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-20 11:36:29,897 INFO L168 Benchmark]: RCFGBuilder took 1252.40 ms. Allocated memory was 206.6 MB in the beginning and 238.0 MB in the end (delta: 31.5 MB). Free memory was 168.2 MB in the beginning and 179.1 MB in the end (delta: -10.9 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. [2020-07-20 11:36:29,898 INFO L168 Benchmark]: TraceAbstraction took 22685.12 ms. Allocated memory was 238.0 MB in the beginning and 590.9 MB in the end (delta: 352.8 MB). Free memory was 177.6 MB in the beginning and 385.6 MB in the end (delta: -207.9 MB). Peak memory consumption was 403.8 MB. Max. memory is 7.1 GB. [2020-07-20 11:36:29,902 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 844.53 ms. Allocated memory was 139.5 MB in the beginning and 206.6 MB in the end (delta: 67.1 MB). Free memory was 102.5 MB in the beginning and 173.0 MB in the end (delta: -70.6 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.38 ms. Allocated memory is still 206.6 MB. Free memory was 173.0 MB in the beginning and 168.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1252.40 ms. Allocated memory was 206.6 MB in the beginning and 238.0 MB in the end (delta: 31.5 MB). Free memory was 168.2 MB in the beginning and 179.1 MB in the end (delta: -10.9 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22685.12 ms. Allocated memory was 238.0 MB in the beginning and 590.9 MB in the end (delta: 352.8 MB). Free memory was 177.6 MB in the beginning and 385.6 MB in the end (delta: -207.9 MB). Peak memory consumption was 403.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 442]: 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: 606]: Loop Invariant Derived loop invariant: ((((((((((((((!(1 == \old(a19)) || ((((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a17 <= 8) && a19 <= \old(a19)) && a28 <= 7) && 1 == a25)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= \old(a28)) && a25 == \old(a25))) || (((((a28 <= 10 && a25 <= 0) && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || !(\old(a28) <= 7)) || (((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && 1 <= a19) && a19 <= \old(a19)) && 1 == a25)) || (((a17 <= \old(a17) && 8 <= a17) && a28 <= 9) && a19 <= 0)) || (((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && a28 <= 10) && a19 <= 0) && 1 == a25)) || (((1 == a19 && a17 <= 8) && a28 <= 10) && 10 <= a28)) || (((((1 == a19 && a17 <= 8) && a17 <= 7) && a19 <= \old(a19)) && 7 < \old(a17)) && a28 <= 7)) || ((((a17 <= 8 && a28 <= 9) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || !(\old(a11) <= 0)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 9) && a25 <= 0) && 9 <= a28)) || !(\old(a25) <= 0)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 10) && 9 <= a28) && 1 == a25)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.6s, OverallIterations: 13, TraceHistogramMax: 5, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1150 SDtfs, 5151 SDslu, 651 SDs, 0 SdLazy, 8855 SolverSat, 1245 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3428 GetRequests, 3354 SyntacticMatches, 14 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4995occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 2254 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 229 PreInvPairs, 279 NumberOfFragments, 1074 HoareAnnotationTreeSize, 229 FomulaSimplifications, 5199 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4846 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 2005 NumberOfCodeBlocks, 2005 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3385 ConstructedInterpolants, 0 QuantifiedInterpolants, 1106815 SizeOfPredicates, 17 NumberOfNonLiveVariables, 5452 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 21 InterpolantComputations, 6 PerfectInterpolantSequences, 1954/2073 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...