/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 DAGSIZE --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/Problem10_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:10:56,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:10:56,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:10:56,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:10:56,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:10:56,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:10:56,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:10:56,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:10:56,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:10:56,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:10:56,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:10:56,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:10:56,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:10:56,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:10:56,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:10:56,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:10:56,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:10:56,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:10:56,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:10:56,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:10:56,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:10:56,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:10:56,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:10:56,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:10:56,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:10:56,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:10:56,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:10:56,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:10:56,551 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 20:10:56,567 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:10:56,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:10:56,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:10:56,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:10:56,570 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:10:56,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:10:56,570 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:10:56,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:10:56,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:10:56,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:10:56,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:10:56,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:10:56,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:10:56,572 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:10:56,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:10:56,572 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:10:56,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:10:56,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:10:56,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:10:56,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:10:56,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:10:56,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:10:56,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:10:56,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:10:56,574 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:10:56,574 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:10:56,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:56,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:10:56,575 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:10:56,575 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 -> DAGSIZE 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 20:10:56,880 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:10:56,901 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:10:56,904 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:10:56,906 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:10:56,907 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:10:56,907 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label03.c [2020-07-21 20:10:56,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3181c50f8/0c79c393236d4f0bb775fafa127f3f34/FLAGedd5f69ef [2020-07-21 20:10:57,545 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:10:57,546 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label03.c [2020-07-21 20:10:57,566 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3181c50f8/0c79c393236d4f0bb775fafa127f3f34/FLAGedd5f69ef [2020-07-21 20:10:57,832 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3181c50f8/0c79c393236d4f0bb775fafa127f3f34 [2020-07-21 20:10:57,842 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:10:57,846 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:10:57,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:10:57,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:10:57,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:10:57,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:10:57" (1/1) ... [2020-07-21 20:10:57,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c48897d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:57, skipping insertion in model container [2020-07-21 20:10:57,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:10:57" (1/1) ... [2020-07-21 20:10:57,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:10:57,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:10:58,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:10:58,331 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:10:58,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:10:58,668 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:10:58,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:58 WrapperNode [2020-07-21 20:10:58,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:10:58,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:10:58,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:10:58,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:10:58,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:58" (1/1) ... [2020-07-21 20:10:58,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:58" (1/1) ... [2020-07-21 20:10:58,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:58" (1/1) ... [2020-07-21 20:10:58,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:58" (1/1) ... [2020-07-21 20:10:58,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:58" (1/1) ... [2020-07-21 20:10:58,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:58" (1/1) ... [2020-07-21 20:10:58,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:58" (1/1) ... [2020-07-21 20:10:58,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:10:58,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:10:58,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:10:58,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:10:58,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:58" (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 20:10:58,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:10:58,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:10:58,877 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:10:58,877 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:10:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:10:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:10:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:10:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:10:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:10:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:10:58,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:11:00,200 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:11:00,201 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:11:00,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:11:00 BoogieIcfgContainer [2020-07-21 20:11:00,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:11:00,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:11:00,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:11:00,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:11:00,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:10:57" (1/3) ... [2020-07-21 20:11:00,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3a3c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:11:00, skipping insertion in model container [2020-07-21 20:11:00,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:58" (2/3) ... [2020-07-21 20:11:00,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3a3c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:11:00, skipping insertion in model container [2020-07-21 20:11:00,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:11:00" (3/3) ... [2020-07-21 20:11:00,216 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label03.c [2020-07-21 20:11:00,226 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:11:00,234 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:11:00,248 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:11:00,272 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:11:00,273 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:11:00,273 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:11:00,273 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:11:00,273 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:11:00,273 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:11:00,274 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:11:00,274 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:11:00,296 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 20:11:00,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-21 20:11:00,305 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:00,306 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] [2020-07-21 20:11:00,306 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:00,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:00,313 INFO L82 PathProgramCache]: Analyzing trace with hash 871832311, now seen corresponding path program 1 times [2020-07-21 20:11:00,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:00,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283734505] [2020-07-21 20:11:00,323 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 20:11:00,432 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:00,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:00,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:11:00,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:00,511 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 20:11:00,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:00,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283734505] [2020-07-21 20:11:00,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:00,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:00,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389982875] [2020-07-21 20:11:00,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:00,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:00,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:00,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:00,543 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 20:11:01,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:01,620 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-21 20:11:01,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:01,622 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2020-07-21 20:11:01,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:01,638 INFO L225 Difference]: With dead ends: 586 [2020-07-21 20:11:01,638 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 20:11:01,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 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 20:11:01,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 20:11:01,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 20:11:01,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 20:11:01,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-21 20:11:01,719 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 42 [2020-07-21 20:11:01,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:01,719 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-21 20:11:01,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:01,720 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-21 20:11:01,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-07-21 20:11:01,725 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:01,725 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:11:01,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:01,937 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:01,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:01,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1448018810, now seen corresponding path program 1 times [2020-07-21 20:11:01,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:01,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984020047] [2020-07-21 20:11:01,939 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 20:11:02,030 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:02,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:02,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:02,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:02,069 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:02,069 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:02,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984020047] [2020-07-21 20:11:02,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:02,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:02,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852008581] [2020-07-21 20:11:02,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:02,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:02,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:02,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:02,073 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 3 states. [2020-07-21 20:11:02,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:02,781 INFO L93 Difference]: Finished difference Result 868 states and 1337 transitions. [2020-07-21 20:11:02,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:02,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-07-21 20:11:02,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:02,787 INFO L225 Difference]: With dead ends: 868 [2020-07-21 20:11:02,787 INFO L226 Difference]: Without dead ends: 580 [2020-07-21 20:11:02,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 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 20:11:02,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-21 20:11:02,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-07-21 20:11:02,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-21 20:11:02,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 802 transitions. [2020-07-21 20:11:02,841 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 802 transitions. Word has length 112 [2020-07-21 20:11:02,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:02,842 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 802 transitions. [2020-07-21 20:11:02,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:02,844 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 802 transitions. [2020-07-21 20:11:02,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-21 20:11:02,847 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:02,849 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:11:03,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:03,058 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:03,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:03,059 INFO L82 PathProgramCache]: Analyzing trace with hash 444581905, now seen corresponding path program 1 times [2020-07-21 20:11:03,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:03,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1752104997] [2020-07-21 20:11:03,061 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 20:11:03,140 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:03,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:03,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:03,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:03,192 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:03,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:03,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1752104997] [2020-07-21 20:11:03,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:03,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:03,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779392177] [2020-07-21 20:11:03,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:03,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:03,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:03,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:03,202 INFO L87 Difference]: Start difference. First operand 580 states and 802 transitions. Second operand 3 states. [2020-07-21 20:11:03,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:03,945 INFO L93 Difference]: Finished difference Result 1440 states and 2058 transitions. [2020-07-21 20:11:03,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:03,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-07-21 20:11:03,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:03,959 INFO L225 Difference]: With dead ends: 1440 [2020-07-21 20:11:03,959 INFO L226 Difference]: Without dead ends: 866 [2020-07-21 20:11:03,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 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 20:11:03,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-07-21 20:11:03,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 580. [2020-07-21 20:11:03,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-21 20:11:04,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 791 transitions. [2020-07-21 20:11:04,002 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 791 transitions. Word has length 123 [2020-07-21 20:11:04,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:04,005 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 791 transitions. [2020-07-21 20:11:04,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:04,005 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 791 transitions. [2020-07-21 20:11:04,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-07-21 20:11:04,021 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:04,021 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:11:04,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:04,232 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:04,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:04,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1799011941, now seen corresponding path program 1 times [2020-07-21 20:11:04,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:04,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014391700] [2020-07-21 20:11:04,234 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 20:11:04,363 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:04,364 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:04,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:04,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:04,455 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 138 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:04,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:11:04,642 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 138 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:04,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2014391700] [2020-07-21 20:11:04,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:11:04,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:11:04,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667184989] [2020-07-21 20:11:04,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:11:04,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:04,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:11:04,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:11:04,646 INFO L87 Difference]: Start difference. First operand 580 states and 791 transitions. Second operand 7 states. [2020-07-21 20:11:05,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:05,970 INFO L93 Difference]: Finished difference Result 1462 states and 1977 transitions. [2020-07-21 20:11:05,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 20:11:05,971 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-07-21 20:11:05,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:05,981 INFO L225 Difference]: With dead ends: 1462 [2020-07-21 20:11:05,982 INFO L226 Difference]: Without dead ends: 888 [2020-07-21 20:11:05,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 383 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 20:11:05,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2020-07-21 20:11:06,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 882. [2020-07-21 20:11:06,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 882 states. [2020-07-21 20:11:06,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1096 transitions. [2020-07-21 20:11:06,023 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1096 transitions. Word has length 194 [2020-07-21 20:11:06,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:06,025 INFO L479 AbstractCegarLoop]: Abstraction has 882 states and 1096 transitions. [2020-07-21 20:11:06,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:11:06,025 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1096 transitions. [2020-07-21 20:11:06,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-07-21 20:11:06,030 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:06,030 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:11:06,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:06,245 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:06,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:06,245 INFO L82 PathProgramCache]: Analyzing trace with hash -790528240, now seen corresponding path program 1 times [2020-07-21 20:11:06,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:06,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1433353452] [2020-07-21 20:11:06,246 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 20:11:06,391 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:06,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:06,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:06,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:06,435 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-07-21 20:11:06,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:06,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1433353452] [2020-07-21 20:11:06,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:06,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:06,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085984820] [2020-07-21 20:11:06,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:06,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:06,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:06,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:06,438 INFO L87 Difference]: Start difference. First operand 882 states and 1096 transitions. Second operand 3 states. [2020-07-21 20:11:07,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:07,141 INFO L93 Difference]: Finished difference Result 1313 states and 1623 transitions. [2020-07-21 20:11:07,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:07,142 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2020-07-21 20:11:07,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:07,143 INFO L225 Difference]: With dead ends: 1313 [2020-07-21 20:11:07,143 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:11:07,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 209 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 20:11:07,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:11:07,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:11:07,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:11:07,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:11:07,147 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 211 [2020-07-21 20:11:07,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:07,148 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:11:07,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:07,149 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:11:07,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:11:07,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:07,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:11:07,804 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 31 [2020-07-21 20:11:07,874 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:11:07,874 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (<= ~a10~0 |old(~a10~0)|) [2020-07-21 20:11:07,874 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:11:07,875 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 20:11:07,875 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,875 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,875 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,875 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,875 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,876 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,876 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 20:11:07,876 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 20:11:07,876 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 20:11:07,876 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 20:11:07,876 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 20:11:07,876 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 20:11:07,876 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 20:11:07,876 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 20:11:07,877 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 20:11:07,877 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 20:11:07,877 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 20:11:07,877 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,877 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,877 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,877 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,877 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,878 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 20:11:07,878 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 20:11:07,878 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 20:11:07,878 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 20:11:07,878 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 20:11:07,878 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 20:11:07,878 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 20:11:07,878 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 20:11:07,879 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 20:11:07,879 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 20:11:07,879 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 20:11:07,879 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 20:11:07,879 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 20:11:07,879 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2020-07-21 20:11:07,880 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 20:11:07,880 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,880 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,880 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,880 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,880 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,880 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 20:11:07,881 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 20:11:07,881 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 20:11:07,881 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 20:11:07,881 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 20:11:07,881 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 20:11:07,881 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 20:11:07,881 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 20:11:07,881 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 20:11:07,881 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 20:11:07,882 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,882 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,882 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,882 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,882 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,882 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 20:11:07,882 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 20:11:07,882 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 20:11:07,883 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 20:11:07,883 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 20:11:07,883 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 20:11:07,883 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 20:11:07,883 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 20:11:07,883 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 20:11:07,883 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 20:11:07,883 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 20:11:07,884 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 20:11:07,884 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 20:11:07,884 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,884 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,884 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,884 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,884 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,885 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 20:11:07,885 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 20:11:07,885 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 20:11:07,885 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 20:11:07,885 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 20:11:07,885 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 20:11:07,885 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 20:11:07,885 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 20:11:07,886 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 20:11:07,886 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,886 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,886 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,886 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,886 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,886 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,886 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,887 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 20:11:07,887 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 20:11:07,887 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 20:11:07,887 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 20:11:07,887 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 20:11:07,887 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 20:11:07,887 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 20:11:07,887 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 20:11:07,888 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 20:11:07,888 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 20:11:07,888 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 20:11:07,888 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 20:11:07,888 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 20:11:07,888 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,888 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,889 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,889 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,889 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 20:11:07,889 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,889 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,889 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 20:11:07,889 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 20:11:07,889 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 20:11:07,890 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 20:11:07,890 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 20:11:07,890 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 20:11:07,890 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 20:11:07,890 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 20:11:07,890 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 20:11:07,890 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 20:11:07,891 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 20:11:07,891 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 20:11:07,891 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 20:11:07,891 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,891 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,891 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,891 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,891 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,892 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,892 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 20:11:07,892 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 20:11:07,892 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 20:11:07,892 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 20:11:07,892 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 20:11:07,892 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 20:11:07,892 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 20:11:07,892 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 20:11:07,893 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 20:11:07,893 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 20:11:07,893 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 20:11:07,893 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse1 (not (<= 7 |old(~a19~0)|))) (.cse0 (<= ~a10~0 |old(~a10~0)|))) (and (or .cse0 .cse1) (or (not (<= 23 |old(~a1~0)|)) .cse1 (<= 23 ~a1~0) (not (<= |old(~a10~0)| 2))) (or (and .cse0 (<= 2 ~a10~0)) (not (<= 2 |old(~a10~0)|))) (or (<= 7 ~a19~0) .cse1) (or .cse0 (not (<= |old(~a10~0)| 0))))) [2020-07-21 20:11:07,893 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 20:11:07,893 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 20:11:07,894 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 20:11:07,894 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,894 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,894 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,894 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,894 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,894 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,895 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 20:11:07,895 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 20:11:07,895 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 20:11:07,895 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 20:11:07,895 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 20:11:07,895 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 20:11:07,895 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 20:11:07,895 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 20:11:07,896 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 20:11:07,896 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 20:11:07,896 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 20:11:07,896 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 20:11:07,896 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 20:11:07,896 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,896 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,896 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,897 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,897 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,897 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,897 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 20:11:07,897 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 20:11:07,897 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 20:11:07,897 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 20:11:07,898 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 20:11:07,898 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 20:11:07,898 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 20:11:07,898 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 20:11:07,898 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 20:11:07,898 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 20:11:07,898 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 20:11:07,899 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 20:11:07,899 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,899 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,899 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,899 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,899 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,899 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:07,899 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 20:11:07,900 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 20:11:07,900 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 20:11:07,900 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 20:11:07,900 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 20:11:07,900 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 20:11:07,900 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 20:11:07,900 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 20:11:07,900 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 20:11:07,901 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 20:11:07,901 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 20:11:07,901 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 20:11:07,901 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:11:07,901 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 7 ~a19~0) (<= 23 ~a1~0)) [2020-07-21 20:11:07,901 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:11:07,901 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:11:07,901 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (and (<= ~a10~0 |old(~a10~0)|) (<= 7 ~a19~0) (<= 23 ~a1~0)) (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 7 |old(~a19~0)|))) [2020-07-21 20:11:07,902 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 20:11:07,902 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (<= ~a10~0 0) (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (<= 7 ~a19~0) (not (<= 7 |old(~a19~0)|)) (<= 2 ~a10~0)) [2020-07-21 20:11:07,902 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 20:11:07,902 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 20:11:07,902 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (<= ~a10~0 0) (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (<= 7 ~a19~0) (not (<= 7 |old(~a19~0)|)) (<= 2 ~a10~0)) [2020-07-21 20:11:07,902 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 20:11:07,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:11:07 BoogieIcfgContainer [2020-07-21 20:11:07,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:11:07,927 INFO L168 Benchmark]: Toolchain (without parser) took 10083.17 ms. Allocated memory was 137.9 MB in the beginning and 325.6 MB in the end (delta: 187.7 MB). Free memory was 100.7 MB in the beginning and 190.1 MB in the end (delta: -89.4 MB). Peak memory consumption was 98.3 MB. Max. memory is 7.1 GB. [2020-07-21 20:11:07,928 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 137.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 20:11:07,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 823.24 ms. Allocated memory was 137.9 MB in the beginning and 204.5 MB in the end (delta: 66.6 MB). Free memory was 100.5 MB in the beginning and 171.0 MB in the end (delta: -70.5 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2020-07-21 20:11:07,930 INFO L168 Benchmark]: Boogie Preprocessor took 133.48 ms. Allocated memory is still 204.5 MB. Free memory was 171.0 MB in the beginning and 166.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 20:11:07,931 INFO L168 Benchmark]: RCFGBuilder took 1403.08 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 166.0 MB in the beginning and 182.3 MB in the end (delta: -16.3 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2020-07-21 20:11:07,932 INFO L168 Benchmark]: TraceAbstraction took 7716.84 ms. Allocated memory was 237.0 MB in the beginning and 325.6 MB in the end (delta: 88.6 MB). Free memory was 182.3 MB in the beginning and 190.1 MB in the end (delta: -7.8 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:11:07,937 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 137.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 823.24 ms. Allocated memory was 137.9 MB in the beginning and 204.5 MB in the end (delta: 66.6 MB). Free memory was 100.5 MB in the beginning and 171.0 MB in the end (delta: -70.5 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.48 ms. Allocated memory is still 204.5 MB. Free memory was 171.0 MB in the beginning and 166.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1403.08 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 166.0 MB in the beginning and 182.3 MB in the end (delta: -16.3 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7716.84 ms. Allocated memory was 237.0 MB in the beginning and 325.6 MB in the end (delta: 88.6 MB). Free memory was 182.3 MB in the beginning and 190.1 MB in the end (delta: -7.8 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 112]: 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: 582]: Loop Invariant Derived loop invariant: ((((a10 <= 0 || !(23 <= \old(a1))) || !(\old(a10) <= 0)) || 7 <= a19) || !(7 <= \old(a19))) || 2 <= a10 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.0s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 378 SDtfs, 1082 SDslu, 84 SDs, 0 SdLazy, 2277 SolverSat, 517 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 878 GetRequests, 863 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=882occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 292 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 26 PreInvPairs, 44 NumberOfFragments, 134 HoareAnnotationTreeSize, 26 FomulaSimplifications, 350 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 247 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 682 NumberOfCodeBlocks, 682 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 870 ConstructedInterpolants, 0 QuantifiedInterpolants, 307870 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1403 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 498/502 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...