/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 SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 13:51:57,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 13:51:57,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 13:51:57,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 13:51:57,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 13:51:57,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 13:51:57,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 13:51:57,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 13:51:57,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 13:51:57,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 13:51:57,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 13:51:57,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 13:51:57,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:51:57,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:51:57,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:51:57,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:51:57,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:51:57,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:51:57,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:51:57,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:51:57,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:51:57,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:51:57,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:51:57,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:51:57,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 13:51:57,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:51:57,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:51:57,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:51:57,823 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 [2020-07-21 13:51:57,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:51:57,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:51:57,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:51:57,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:51:57,856 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:51:57,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:51:57,857 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:51:57,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:51:57,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:51:57,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:51:57,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:51:57,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:51:57,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:51:57,858 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:51:57,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:51:57,858 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:51:57,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:51:57,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:51:57,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:51:57,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:51:57,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:51:57,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:51:57,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:51:57,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:51:57,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:51:57,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:51:57,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:51:57,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:51:57,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:51:57,863 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 -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 13:51:58,149 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:51:58,170 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:51:58,173 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:51:58,174 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:51:58,176 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:51:58,177 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label40.c [2020-07-21 13:51:58,260 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50acd2874/bedcfe12cdee49bda30a1ea42ae04bf5/FLAG7c1895b8e [2020-07-21 13:51:58,837 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:51:58,839 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label40.c [2020-07-21 13:51:58,857 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50acd2874/bedcfe12cdee49bda30a1ea42ae04bf5/FLAG7c1895b8e [2020-07-21 13:51:59,095 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50acd2874/bedcfe12cdee49bda30a1ea42ae04bf5 [2020-07-21 13:51:59,103 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:51:59,106 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:51:59,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:51:59,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:51:59,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:51:59,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:51:59" (1/1) ... [2020-07-21 13:51:59,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52590782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:59, skipping insertion in model container [2020-07-21 13:51:59,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:51:59" (1/1) ... [2020-07-21 13:51:59,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:51:59,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:51:59,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:51:59,547 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:51:59,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:51:59,820 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:51:59,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:59 WrapperNode [2020-07-21 13:51:59,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:51:59,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:51:59,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:51:59,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:51:59,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:59" (1/1) ... [2020-07-21 13:51:59,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:59" (1/1) ... [2020-07-21 13:51:59,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:59" (1/1) ... [2020-07-21 13:51:59,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:59" (1/1) ... [2020-07-21 13:51:59,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:59" (1/1) ... [2020-07-21 13:51:59,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:59" (1/1) ... [2020-07-21 13:51:59,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:59" (1/1) ... [2020-07-21 13:51:59,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:51:59,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:51:59,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:51:59,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:51:59,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:59" (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 [2020-07-21 13:52:00,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:52:00,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:52:00,006 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 13:52:00,006 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:52:00,006 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 13:52:00,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:52:00,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:52:00,007 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 13:52:00,007 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:52:00,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:52:00,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:52:01,249 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:52:01,249 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 13:52:01,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:01 BoogieIcfgContainer [2020-07-21 13:52:01,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:52:01,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:52:01,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:52:01,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:52:01,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:51:59" (1/3) ... [2020-07-21 13:52:01,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd41477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:01, skipping insertion in model container [2020-07-21 13:52:01,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:51:59" (2/3) ... [2020-07-21 13:52:01,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd41477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:01, skipping insertion in model container [2020-07-21 13:52:01,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:01" (3/3) ... [2020-07-21 13:52:01,278 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label40.c [2020-07-21 13:52:01,289 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:52:01,303 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:52:01,318 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:52:01,355 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:52:01,356 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:52:01,356 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:52:01,356 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:52:01,356 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:52:01,357 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:52:01,357 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:52:01,357 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:52:01,381 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 13:52:01,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-21 13:52:01,393 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:01,394 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] [2020-07-21 13:52:01,395 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:01,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:01,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1033095319, now seen corresponding path program 1 times [2020-07-21 13:52:01,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:01,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001121382] [2020-07-21 13:52:01,408 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 13:52:01,611 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:01,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:01,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:52:01,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:01,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:52:01,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:01,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2001121382] [2020-07-21 13:52:01,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:01,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:01,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842816766] [2020-07-21 13:52:01,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:01,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:01,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:01,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:01,749 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 13:52:02,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:02,714 INFO L93 Difference]: Finished difference Result 649 states and 1093 transitions. [2020-07-21 13:52:02,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:02,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2020-07-21 13:52:02,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:02,734 INFO L225 Difference]: With dead ends: 649 [2020-07-21 13:52:02,734 INFO L226 Difference]: Without dead ends: 330 [2020-07-21 13:52:02,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:02,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-07-21 13:52:02,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2020-07-21 13:52:02,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-07-21 13:52:02,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 481 transitions. [2020-07-21 13:52:02,813 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 481 transitions. Word has length 95 [2020-07-21 13:52:02,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:02,814 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 481 transitions. [2020-07-21 13:52:02,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:02,815 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 481 transitions. [2020-07-21 13:52:02,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-07-21 13:52:02,820 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:02,820 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 13:52:03,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:03,034 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:03,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:03,035 INFO L82 PathProgramCache]: Analyzing trace with hash -377311506, now seen corresponding path program 1 times [2020-07-21 13:52:03,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:03,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628132457] [2020-07-21 13:52:03,036 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 13:52:03,152 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:03,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:03,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:03,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:03,210 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:52:03,210 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:03,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628132457] [2020-07-21 13:52:03,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:03,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:03,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419237663] [2020-07-21 13:52:03,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:03,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:03,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:03,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:03,215 INFO L87 Difference]: Start difference. First operand 330 states and 481 transitions. Second operand 3 states. [2020-07-21 13:52:03,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:03,803 INFO L93 Difference]: Finished difference Result 948 states and 1400 transitions. [2020-07-21 13:52:03,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:03,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-07-21 13:52:03,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:03,814 INFO L225 Difference]: With dead ends: 948 [2020-07-21 13:52:03,814 INFO L226 Difference]: Without dead ends: 624 [2020-07-21 13:52:03,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:03,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-07-21 13:52:03,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 622. [2020-07-21 13:52:03,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2020-07-21 13:52:03,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 877 transitions. [2020-07-21 13:52:03,861 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 877 transitions. Word has length 103 [2020-07-21 13:52:03,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:03,862 INFO L479 AbstractCegarLoop]: Abstraction has 622 states and 877 transitions. [2020-07-21 13:52:03,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:03,862 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 877 transitions. [2020-07-21 13:52:03,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-07-21 13:52:03,867 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:03,867 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1] [2020-07-21 13:52:04,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:04,084 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:04,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:04,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1456059206, now seen corresponding path program 1 times [2020-07-21 13:52:04,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:04,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993174754] [2020-07-21 13:52:04,087 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 13:52:04,206 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:04,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:04,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 13:52:04,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:04,249 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:52:04,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:04,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993174754] [2020-07-21 13:52:04,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:04,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:52:04,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546313806] [2020-07-21 13:52:04,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:52:04,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:04,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:52:04,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:04,253 INFO L87 Difference]: Start difference. First operand 622 states and 877 transitions. Second operand 5 states. [2020-07-21 13:52:05,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:05,055 INFO L93 Difference]: Finished difference Result 1855 states and 2711 transitions. [2020-07-21 13:52:05,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:52:05,056 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-07-21 13:52:05,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:05,066 INFO L225 Difference]: With dead ends: 1855 [2020-07-21 13:52:05,067 INFO L226 Difference]: Without dead ends: 1239 [2020-07-21 13:52:05,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:05,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2020-07-21 13:52:05,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1223. [2020-07-21 13:52:05,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-07-21 13:52:05,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1671 transitions. [2020-07-21 13:52:05,145 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1671 transitions. Word has length 109 [2020-07-21 13:52:05,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:05,146 INFO L479 AbstractCegarLoop]: Abstraction has 1223 states and 1671 transitions. [2020-07-21 13:52:05,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:52:05,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1671 transitions. [2020-07-21 13:52:05,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-21 13:52:05,154 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:05,155 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-07-21 13:52:05,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:05,369 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:05,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:05,370 INFO L82 PathProgramCache]: Analyzing trace with hash 549151607, now seen corresponding path program 1 times [2020-07-21 13:52:05,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:05,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079891672] [2020-07-21 13:52:05,372 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 13:52:05,496 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:05,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:05,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:05,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:05,535 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:52:05,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:05,622 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:52:05,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079891672] [2020-07-21 13:52:05,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:05,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:05,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484880604] [2020-07-21 13:52:05,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:05,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:05,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:05,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:05,625 INFO L87 Difference]: Start difference. First operand 1223 states and 1671 transitions. Second operand 7 states. [2020-07-21 13:52:06,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:06,239 INFO L93 Difference]: Finished difference Result 2447 states and 3403 transitions. [2020-07-21 13:52:06,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 13:52:06,240 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2020-07-21 13:52:06,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:06,250 INFO L225 Difference]: With dead ends: 2447 [2020-07-21 13:52:06,250 INFO L226 Difference]: Without dead ends: 1230 [2020-07-21 13:52:06,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 220 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 13:52:06,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2020-07-21 13:52:06,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1212. [2020-07-21 13:52:06,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1212 states. [2020-07-21 13:52:06,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1605 transitions. [2020-07-21 13:52:06,306 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1605 transitions. Word has length 113 [2020-07-21 13:52:06,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:06,307 INFO L479 AbstractCegarLoop]: Abstraction has 1212 states and 1605 transitions. [2020-07-21 13:52:06,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:52:06,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1605 transitions. [2020-07-21 13:52:06,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-21 13:52:06,312 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:06,313 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:06,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:06,528 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:06,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:06,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1585888029, now seen corresponding path program 1 times [2020-07-21 13:52:06,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:06,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924229821] [2020-07-21 13:52:06,530 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 13:52:06,754 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:06,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:06,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:52:06,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:06,815 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:52:06,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:06,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924229821] [2020-07-21 13:52:06,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:06,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:52:06,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481428941] [2020-07-21 13:52:06,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:52:06,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:06,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:52:06,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:06,819 INFO L87 Difference]: Start difference. First operand 1212 states and 1605 transitions. Second operand 5 states. [2020-07-21 13:52:07,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:07,655 INFO L93 Difference]: Finished difference Result 3050 states and 4141 transitions. [2020-07-21 13:52:07,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:52:07,656 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2020-07-21 13:52:07,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:07,678 INFO L225 Difference]: With dead ends: 3050 [2020-07-21 13:52:07,679 INFO L226 Difference]: Without dead ends: 1844 [2020-07-21 13:52:07,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 13:52:07,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2020-07-21 13:52:07,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1832. [2020-07-21 13:52:07,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1832 states. [2020-07-21 13:52:07,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1832 states to 1832 states and 2309 transitions. [2020-07-21 13:52:07,771 INFO L78 Accepts]: Start accepts. Automaton has 1832 states and 2309 transitions. Word has length 123 [2020-07-21 13:52:07,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:07,771 INFO L479 AbstractCegarLoop]: Abstraction has 1832 states and 2309 transitions. [2020-07-21 13:52:07,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:52:07,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1832 states and 2309 transitions. [2020-07-21 13:52:07,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-21 13:52:07,785 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:07,786 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:07,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:08,000 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:08,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:08,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1742083188, now seen corresponding path program 1 times [2020-07-21 13:52:08,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:08,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275650472] [2020-07-21 13:52:08,002 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 13:52:08,159 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:08,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:08,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:08,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:08,211 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 38 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:52:08,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:08,289 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 38 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:52:08,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275650472] [2020-07-21 13:52:08,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:08,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:52:08,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559823948] [2020-07-21 13:52:08,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:52:08,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:08,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:52:08,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:08,302 INFO L87 Difference]: Start difference. First operand 1832 states and 2309 transitions. Second operand 6 states. [2020-07-21 13:52:09,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:09,069 INFO L93 Difference]: Finished difference Result 3970 states and 5018 transitions. [2020-07-21 13:52:09,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:52:09,070 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2020-07-21 13:52:09,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:09,080 INFO L225 Difference]: With dead ends: 3970 [2020-07-21 13:52:09,080 INFO L226 Difference]: Without dead ends: 2144 [2020-07-21 13:52:09,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 258 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:52:09,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2020-07-21 13:52:09,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 2132. [2020-07-21 13:52:09,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2132 states. [2020-07-21 13:52:09,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2573 transitions. [2020-07-21 13:52:09,146 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2573 transitions. Word has length 132 [2020-07-21 13:52:09,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:09,147 INFO L479 AbstractCegarLoop]: Abstraction has 2132 states and 2573 transitions. [2020-07-21 13:52:09,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:52:09,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2573 transitions. [2020-07-21 13:52:09,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-21 13:52:09,152 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:09,153 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:09,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:09,369 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:09,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:09,370 INFO L82 PathProgramCache]: Analyzing trace with hash -2009077228, now seen corresponding path program 1 times [2020-07-21 13:52:09,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:09,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1474045304] [2020-07-21 13:52:09,371 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 13:52:09,463 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:09,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:09,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:09,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:09,506 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 13:52:09,506 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:09,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1474045304] [2020-07-21 13:52:09,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:09,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:09,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471849033] [2020-07-21 13:52:09,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:09,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:09,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:09,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:09,510 INFO L87 Difference]: Start difference. First operand 2132 states and 2573 transitions. Second operand 3 states. [2020-07-21 13:52:10,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:10,076 INFO L93 Difference]: Finished difference Result 4258 states and 5140 transitions. [2020-07-21 13:52:10,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:10,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2020-07-21 13:52:10,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:10,087 INFO L225 Difference]: With dead ends: 4258 [2020-07-21 13:52:10,087 INFO L226 Difference]: Without dead ends: 2132 [2020-07-21 13:52:10,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:10,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2020-07-21 13:52:10,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 2132. [2020-07-21 13:52:10,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2132 states. [2020-07-21 13:52:10,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2450 transitions. [2020-07-21 13:52:10,151 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2450 transitions. Word has length 136 [2020-07-21 13:52:10,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:10,152 INFO L479 AbstractCegarLoop]: Abstraction has 2132 states and 2450 transitions. [2020-07-21 13:52:10,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:10,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2450 transitions. [2020-07-21 13:52:10,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-21 13:52:10,158 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:10,159 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:10,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:10,374 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:10,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:10,375 INFO L82 PathProgramCache]: Analyzing trace with hash 222844508, now seen corresponding path program 1 times [2020-07-21 13:52:10,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:10,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [167590236] [2020-07-21 13:52:10,376 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 13:52:10,470 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:10,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:10,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:10,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:10,556 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 13:52:10,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:10,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [167590236] [2020-07-21 13:52:10,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:10,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:10,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9864097] [2020-07-21 13:52:10,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:10,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:10,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:10,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:10,559 INFO L87 Difference]: Start difference. First operand 2132 states and 2450 transitions. Second operand 3 states. [2020-07-21 13:52:11,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:11,104 INFO L93 Difference]: Finished difference Result 4846 states and 5583 transitions. [2020-07-21 13:52:11,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:11,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2020-07-21 13:52:11,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:11,113 INFO L225 Difference]: With dead ends: 4846 [2020-07-21 13:52:11,113 INFO L226 Difference]: Without dead ends: 2123 [2020-07-21 13:52:11,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:11,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2123 states. [2020-07-21 13:52:11,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2123 to 2123. [2020-07-21 13:52:11,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2123 states. [2020-07-21 13:52:11,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2123 states to 2123 states and 2398 transitions. [2020-07-21 13:52:11,161 INFO L78 Accepts]: Start accepts. Automaton has 2123 states and 2398 transitions. Word has length 143 [2020-07-21 13:52:11,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:11,161 INFO L479 AbstractCegarLoop]: Abstraction has 2123 states and 2398 transitions. [2020-07-21 13:52:11,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:11,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2123 states and 2398 transitions. [2020-07-21 13:52:11,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-21 13:52:11,166 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:11,167 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:11,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:11,380 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:11,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:11,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1100298320, now seen corresponding path program 1 times [2020-07-21 13:52:11,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:11,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308209444] [2020-07-21 13:52:11,381 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 13:52:11,490 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:11,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:11,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:52:11,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:11,545 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-21 13:52:11,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:11,646 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 79 proven. 28 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-21 13:52:11,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [308209444] [2020-07-21 13:52:11,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:11,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:11,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744548419] [2020-07-21 13:52:11,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:11,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:11,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:11,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:11,650 INFO L87 Difference]: Start difference. First operand 2123 states and 2398 transitions. Second operand 7 states. [2020-07-21 13:52:12,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:12,906 INFO L93 Difference]: Finished difference Result 5599 states and 6320 transitions. [2020-07-21 13:52:12,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:52:12,907 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 168 [2020-07-21 13:52:12,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:12,907 INFO L225 Difference]: With dead ends: 5599 [2020-07-21 13:52:12,907 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:52:12,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:52:12,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:52:12,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:52:12,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:52:12,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:52:12,919 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 168 [2020-07-21 13:52:12,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:12,919 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:52:12,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:52:12,919 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:52:12,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:52:13,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:13,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:52:14,303 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 59 [2020-07-21 13:52:14,490 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2020-07-21 13:52:14,671 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2020-07-21 13:52:14,677 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:52:14,677 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)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 13:52:14,678 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:52:14,678 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,678 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,678 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,678 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,678 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,679 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 13:52:14,679 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 13:52:14,679 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 13:52:14,679 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 13:52:14,679 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 13:52:14,679 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 13:52:14,679 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 13:52:14,679 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 13:52:14,680 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 13:52:14,680 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 13:52:14,680 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:52:14,680 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:52:14,680 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 13:52:14,680 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,680 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,681 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,681 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,681 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 13:52:14,681 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,681 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 13:52:14,681 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 13:52:14,681 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 13:52:14,681 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 13:52:14,681 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 13:52:14,681 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 13:52:14,681 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 13:52:14,682 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:52:14,682 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:52:14,682 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 13:52:14,682 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 13:52:14,682 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 13:52:14,682 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:52:14,682 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:52:14,682 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 13:52:14,682 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,683 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,683 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,683 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,683 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,683 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 439) no Hoare annotation was computed. [2020-07-21 13:52:14,683 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:52:14,683 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 13:52:14,684 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:52:14,684 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 13:52:14,684 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 13:52:14,684 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 13:52:14,684 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 13:52:14,684 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 13:52:14,684 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 13:52:14,685 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 13:52:14,685 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 13:52:14,685 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,685 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,685 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,685 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,685 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,685 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 13:52:14,685 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 13:52:14,686 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 13:52:14,686 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 13:52:14,686 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 13:52:14,686 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 13:52:14,686 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 13:52:14,686 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 13:52:14,686 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 13:52:14,686 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 13:52:14,686 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 13:52:14,686 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 13:52:14,686 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 13:52:14,687 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,687 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,687 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,687 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,687 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,687 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 13:52:14,687 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 13:52:14,687 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 13:52:14,687 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 13:52:14,688 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 13:52:14,688 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 13:52:14,688 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 13:52:14,688 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 13:52:14,688 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 13:52:14,688 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 13:52:14,688 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 13:52:14,688 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 13:52:14,688 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 13:52:14,688 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:52:14,688 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 13:52:14,688 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:52:14,689 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,689 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,689 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,689 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,689 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 13:52:14,689 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,689 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:52:14,689 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,689 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:52:14,689 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:52:14,689 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:52:14,689 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,689 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,689 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 13:52:14,690 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 13:52:14,690 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 13:52:14,690 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 13:52:14,690 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 13:52:14,690 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 13:52:14,690 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 13:52:14,690 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 13:52:14,690 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 13:52:14,690 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 13:52:14,690 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 13:52:14,690 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,690 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,690 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,691 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,691 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,691 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,691 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 13:52:14,691 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 13:52:14,691 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 13:52:14,691 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 13:52:14,691 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 13:52:14,691 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 13:52:14,691 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 13:52:14,691 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 13:52:14,692 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 13:52:14,692 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 13:52:14,692 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 13:52:14,692 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,692 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,692 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,692 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,693 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,693 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,693 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 13:52:14,693 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 13:52:14,693 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 13:52:14,693 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 13:52:14,693 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 13:52:14,693 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 13:52:14,694 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 13:52:14,694 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 13:52:14,694 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 13:52:14,694 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 13:52:14,694 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 13:52:14,694 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 13:52:14,694 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 13:52:14,694 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 13:52:14,695 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,695 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,695 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,695 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse8 (= ~a25~0 |old(~a25~0)|)) (.cse1 (not (<= 9 |old(~a28~0)|))) (.cse4 (<= 9 ~a28~0)) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse2 (not (<= |old(~a19~0)| 0))) (.cse10 (<= ~a11~0 0)) (.cse13 (not (= 1 |old(~a25~0)|))) (.cse3 (not (<= |old(~a17~0)| 8))) (.cse11 (not (<= |old(~a11~0)| 0))) (.cse5 (not (= 1 |old(~a19~0)|))) (.cse12 (not (<= |old(~a28~0)| 7))) (.cse9 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (<= ~a28~0 |old(~a28~0)|)) (.cse7 (= ~a19~0 |old(~a19~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 (and .cse6 .cse7 .cse4 .cse8) .cse0 .cse1 .cse3) (or .cse0 .cse2 (and .cse9 .cse6 .cse7 .cse8) .cse3) (or .cse5 .cse0 .cse10 .cse1 .cse3 .cse11) (or .cse5 (and .cse10 .cse6 (<= ~a17~0 8) .cse7 .cse8) .cse12 .cse3 .cse11) (or .cse5 .cse9 .cse0 .cse1 .cse3) (or .cse5 (and .cse9 .cse6 .cse7 (= 1 ~a25~0)) .cse13 .cse3) (or .cse5 .cse1 .cse13 .cse3 .cse4) (or .cse0 .cse10 .cse2 .cse3 .cse11) (or .cse5 .cse10 .cse13 .cse3 .cse11) (or .cse5 .cse12 (not (<= |old(~a17~0)| 7)) (and .cse9 .cse6 .cse7)))) [2020-07-21 13:52:14,695 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,695 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,696 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,696 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 13:52:14,696 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 13:52:14,696 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 13:52:14,696 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 13:52:14,696 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 13:52:14,696 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 13:52:14,696 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 13:52:14,697 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 13:52:14,697 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 13:52:14,697 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 13:52:14,697 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 13:52:14,697 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 13:52:14,697 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 13:52:14,697 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,697 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,697 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,698 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,698 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,698 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,698 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 13:52:14,698 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 13:52:14,698 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 13:52:14,698 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 13:52:14,698 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 13:52:14,699 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 13:52:14,699 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 13:52:14,699 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 13:52:14,699 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 13:52:14,699 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 13:52:14,699 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 13:52:14,699 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:52:14,699 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:52:14,699 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 13:52:14,700 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 13:52:14,700 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 13:52:14,700 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,700 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,700 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,700 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,700 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:14,700 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 13:52:14,700 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 13:52:14,701 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 13:52:14,701 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 13:52:14,701 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 13:52:14,701 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 13:52:14,701 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 13:52:14,701 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 13:52:14,701 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 13:52:14,701 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 13:52:14,702 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 13:52:14,702 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:52:14,702 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 13:52:14,702 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:52:14,702 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 13:52:14,702 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:52:14,702 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:52:14,702 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 13:52:14,702 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 13:52:14,703 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:52:14,703 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a28~0 7)) [2020-07-21 13:52:14,703 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:52:14,703 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:52:14,703 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)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-21 13:52:14,704 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse7 (<= ~a19~0 0)) (.cse2 (<= ~a28~0 10)) (.cse5 (<= ~a17~0 7)) (.cse4 (<= 9 ~a28~0)) (.cse1 (<= ~a17~0 8)) (.cse3 (not (= 1 |old(~a25~0)|))) (.cse0 (= 1 ~a19~0)) (.cse6 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse6) (not (<= |old(~a28~0)| 7)) (and .cse2 .cse5 .cse7 .cse4) (and .cse1 .cse2 .cse3 .cse7) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse2 .cse5 .cse4) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse1 .cse3 (= 1 ~a25~0)) (and .cse0 (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) .cse6 (= ~a25~0 |old(~a25~0)|)))) [2020-07-21 13:52:14,704 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:52:14,704 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:52:14,704 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse7 (<= ~a19~0 0)) (.cse2 (<= ~a28~0 10)) (.cse5 (<= ~a17~0 7)) (.cse4 (<= 9 ~a28~0)) (.cse1 (<= ~a17~0 8)) (.cse3 (not (= 1 |old(~a25~0)|))) (.cse0 (= 1 ~a19~0)) (.cse6 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse6) (not (<= |old(~a28~0)| 7)) (and .cse2 .cse5 .cse7 .cse4) (and .cse1 .cse2 .cse3 .cse7) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse2 .cse5 .cse4) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse1 .cse3 (= 1 ~a25~0)) (and .cse0 (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) .cse6 (= ~a25~0 |old(~a25~0)|)))) [2020-07-21 13:52:14,704 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 13:52:14,704 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 13:52:14,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:52:14 BoogieIcfgContainer [2020-07-21 13:52:14,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:52:14,728 INFO L168 Benchmark]: Toolchain (without parser) took 15623.30 ms. Allocated memory was 139.5 MB in the beginning and 422.1 MB in the end (delta: 282.6 MB). Free memory was 101.0 MB in the beginning and 254.4 MB in the end (delta: -153.3 MB). Peak memory consumption was 294.2 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:14,729 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 13:52:14,730 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.24 ms. Allocated memory was 139.5 MB in the beginning and 206.6 MB in the end (delta: 67.1 MB). Free memory was 100.6 MB in the beginning and 173.8 MB in the end (delta: -73.2 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:14,731 INFO L168 Benchmark]: Boogie Preprocessor took 117.01 ms. Allocated memory is still 206.6 MB. Free memory was 173.8 MB in the beginning and 169.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:14,731 INFO L168 Benchmark]: RCFGBuilder took 1325.04 ms. Allocated memory was 206.6 MB in the beginning and 238.0 MB in the end (delta: 31.5 MB). Free memory was 169.0 MB in the beginning and 181.9 MB in the end (delta: -12.9 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:14,732 INFO L168 Benchmark]: TraceAbstraction took 13460.63 ms. Allocated memory was 238.0 MB in the beginning and 422.1 MB in the end (delta: 184.0 MB). Free memory was 181.9 MB in the beginning and 254.4 MB in the end (delta: -72.5 MB). Peak memory consumption was 276.4 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:14,736 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.24 ms. Allocated memory was 139.5 MB in the beginning and 206.6 MB in the end (delta: 67.1 MB). Free memory was 100.6 MB in the beginning and 173.8 MB in the end (delta: -73.2 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.01 ms. Allocated memory is still 206.6 MB. Free memory was 173.8 MB in the beginning and 169.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1325.04 ms. Allocated memory was 206.6 MB in the beginning and 238.0 MB in the end (delta: 31.5 MB). Free memory was 169.0 MB in the beginning and 181.9 MB in the end (delta: -12.9 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13460.63 ms. Allocated memory was 238.0 MB in the beginning and 422.1 MB in the end (delta: 184.0 MB). Free memory was 181.9 MB in the beginning and 254.4 MB in the end (delta: -72.5 MB). Peak memory consumption was 276.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: 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 <= 8) && a28 <= 10) && !(1 == \old(a25))) && 9 <= a28)) || ((1 == a19 && a17 <= 7) && a28 <= 7)) || !(\old(a28) <= 7)) || (((a28 <= 10 && a17 <= 7) && a19 <= 0) && 9 <= a28)) || (((a17 <= 8 && a28 <= 10) && !(1 == \old(a25))) && a19 <= 0)) || !(\old(a17) <= 8)) || (((1 == a19 && a28 <= 10) && a17 <= 7) && 9 <= a28)) || !(\old(a11) <= 0)) || (((1 == a19 && a17 <= 8) && !(1 == \old(a25))) && 1 == a25)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= 7) && a25 == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.7s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1063 SDtfs, 3075 SDslu, 465 SDs, 0 SdLazy, 5326 SolverSat, 730 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1540 GetRequests, 1503 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2132occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 60 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 110 PreInvPairs, 164 NumberOfFragments, 551 HoareAnnotationTreeSize, 110 FomulaSimplifications, 1814 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1385 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1122 NumberOfCodeBlocks, 1122 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1523 ConstructedInterpolants, 0 QuantifiedInterpolants, 373681 SizeOfPredicates, 12 NumberOfNonLiveVariables, 3205 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 462/500 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...