/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_VARIABLES --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_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 16:35:46,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 16:35:46,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 16:35:46,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 16:35:46,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 16:35:46,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 16:35:46,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 16:35:46,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 16:35:46,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 16:35:46,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 16:35:46,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 16:35:46,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 16:35:46,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 16:35:46,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 16:35:46,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 16:35:46,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 16:35:46,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 16:35:46,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 16:35:46,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 16:35:46,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 16:35:46,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 16:35:46,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 16:35:46,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 16:35:46,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 16:35:46,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 16:35:46,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 16:35:46,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 16:35:46,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 16:35:46,383 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 16:35:46,398 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:35:46,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:35:46,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:35:46,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:35:46,400 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:35:46,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:35:46,401 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:35:46,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:35:46,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:35:46,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:35:46,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:35:46,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:35:46,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:35:46,402 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:35:46,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:35:46,402 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:35:46,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:35:46,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:35:46,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:35:46,403 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:35:46,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:35:46,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:35:46,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:35:46,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:35:46,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:35:46,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:35:46,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:46,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:35:46,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:35:46,405 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_VARIABLES 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 16:35:46,718 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:35:46,732 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:35:46,736 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:35:46,737 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:35:46,738 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:35:46,739 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-07-21 16:35:46,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12614190c/b26d36eebd0848b4adec5475a20dde59/FLAGa48d4fac1 [2020-07-21 16:35:47,361 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:35:47,361 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-07-21 16:35:47,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12614190c/b26d36eebd0848b4adec5475a20dde59/FLAGa48d4fac1 [2020-07-21 16:35:47,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12614190c/b26d36eebd0848b4adec5475a20dde59 [2020-07-21 16:35:47,618 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:35:47,621 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:35:47,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:35:47,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:35:47,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:35:47,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:35:47" (1/1) ... [2020-07-21 16:35:47,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@327cb267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:47, skipping insertion in model container [2020-07-21 16:35:47,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:35:47" (1/1) ... [2020-07-21 16:35:47,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:35:47,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:35:48,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:35:48,355 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:35:48,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:35:48,472 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:35:48,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48 WrapperNode [2020-07-21 16:35:48,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:35:48,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:35:48,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:35:48,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:35:48,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (1/1) ... [2020-07-21 16:35:48,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (1/1) ... [2020-07-21 16:35:48,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (1/1) ... [2020-07-21 16:35:48,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (1/1) ... [2020-07-21 16:35:48,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (1/1) ... [2020-07-21 16:35:48,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (1/1) ... [2020-07-21 16:35:48,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (1/1) ... [2020-07-21 16:35:48,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:35:48,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:35:48,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:35:48,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:35:48,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (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 16:35:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:35:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:35:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 16:35:48,686 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:35:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 16:35:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:35:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 16:35:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 16:35:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:35:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:35:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:35:49,937 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:35:49,937 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 16:35:49,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:35:49 BoogieIcfgContainer [2020-07-21 16:35:49,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:35:49,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:35:49,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:35:49,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:35:49,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:35:47" (1/3) ... [2020-07-21 16:35:49,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57881cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:35:49, skipping insertion in model container [2020-07-21 16:35:49,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (2/3) ... [2020-07-21 16:35:49,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57881cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:35:49, skipping insertion in model container [2020-07-21 16:35:49,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:35:49" (3/3) ... [2020-07-21 16:35:49,954 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label11.c [2020-07-21 16:35:49,965 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:35:49,974 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:35:49,992 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:35:50,025 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:35:50,025 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:35:50,025 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:35:50,025 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:35:50,026 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:35:50,026 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:35:50,026 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:35:50,026 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:35:50,053 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 16:35:50,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-21 16:35:50,068 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:50,069 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] [2020-07-21 16:35:50,070 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:50,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:50,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1918215546, now seen corresponding path program 1 times [2020-07-21 16:35:50,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:50,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685703117] [2020-07-21 16:35:50,088 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 16:35:50,253 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:50,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:50,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:35:50,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:50,340 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 16:35:50,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:50,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685703117] [2020-07-21 16:35:50,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:50,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:35:50,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699937110] [2020-07-21 16:35:50,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:35:50,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:50,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:35:50,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:50,367 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 16:35:51,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:51,416 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-21 16:35:51,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:35:51,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-07-21 16:35:51,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:51,435 INFO L225 Difference]: With dead ends: 586 [2020-07-21 16:35:51,435 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 16:35:51,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 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 16:35:51,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 16:35:51,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 16:35:51,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 16:35:51,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-21 16:35:51,536 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 67 [2020-07-21 16:35:51,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:51,537 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-21 16:35:51,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:35:51,538 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-21 16:35:51,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 16:35:51,544 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:51,545 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:51,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:51,760 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:51,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:51,761 INFO L82 PathProgramCache]: Analyzing trace with hash -649832990, now seen corresponding path program 1 times [2020-07-21 16:35:51,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:51,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924714588] [2020-07-21 16:35:51,762 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 16:35:51,858 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:51,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:51,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:51,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:51,914 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:35:51,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:51,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924714588] [2020-07-21 16:35:51,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:51,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:35:51,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801307797] [2020-07-21 16:35:51,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:35:51,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:51,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:35:51,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:51,919 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 3 states. [2020-07-21 16:35:52,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:52,631 INFO L93 Difference]: Finished difference Result 868 states and 1337 transitions. [2020-07-21 16:35:52,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:35:52,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-21 16:35:52,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:52,638 INFO L225 Difference]: With dead ends: 868 [2020-07-21 16:35:52,638 INFO L226 Difference]: Without dead ends: 580 [2020-07-21 16:35:52,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 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 16:35:52,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-21 16:35:52,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 437. [2020-07-21 16:35:52,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-21 16:35:52,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 648 transitions. [2020-07-21 16:35:52,671 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 648 transitions. Word has length 137 [2020-07-21 16:35:52,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:52,672 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 648 transitions. [2020-07-21 16:35:52,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:35:52,672 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 648 transitions. [2020-07-21 16:35:52,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-07-21 16:35:52,675 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:52,676 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 16:35:52,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:52,889 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:52,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:52,889 INFO L82 PathProgramCache]: Analyzing trace with hash 387828613, now seen corresponding path program 1 times [2020-07-21 16:35:52,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:52,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597109660] [2020-07-21 16:35:52,890 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 16:35:52,984 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:52,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:52,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:52,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:53,047 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:35:53,048 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:53,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597109660] [2020-07-21 16:35:53,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:53,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:35:53,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949196095] [2020-07-21 16:35:53,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:35:53,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:53,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:35:53,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:53,051 INFO L87 Difference]: Start difference. First operand 437 states and 648 transitions. Second operand 3 states. [2020-07-21 16:35:53,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:53,704 INFO L93 Difference]: Finished difference Result 868 states and 1308 transitions. [2020-07-21 16:35:53,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:35:53,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-07-21 16:35:53,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:53,712 INFO L225 Difference]: With dead ends: 868 [2020-07-21 16:35:53,713 INFO L226 Difference]: Without dead ends: 866 [2020-07-21 16:35:53,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 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 16:35:53,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-07-21 16:35:53,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 437. [2020-07-21 16:35:53,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-21 16:35:53,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 648 transitions. [2020-07-21 16:35:53,772 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 648 transitions. Word has length 144 [2020-07-21 16:35:53,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:53,773 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 648 transitions. [2020-07-21 16:35:53,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:35:53,773 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 648 transitions. [2020-07-21 16:35:53,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-07-21 16:35:53,783 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:53,784 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 16:35:53,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:53,988 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:53,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:53,988 INFO L82 PathProgramCache]: Analyzing trace with hash -319573275, now seen corresponding path program 1 times [2020-07-21 16:35:53,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:53,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387250448] [2020-07-21 16:35:53,989 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 16:35:54,139 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:54,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:54,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:54,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:54,279 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:35:54,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:54,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387250448] [2020-07-21 16:35:54,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:54,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:35:54,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264700961] [2020-07-21 16:35:54,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:35:54,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:54,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:35:54,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:54,284 INFO L87 Difference]: Start difference. First operand 437 states and 648 transitions. Second operand 3 states. [2020-07-21 16:35:54,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:54,969 INFO L93 Difference]: Finished difference Result 1154 states and 1745 transitions. [2020-07-21 16:35:54,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:35:54,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-07-21 16:35:54,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:54,976 INFO L225 Difference]: With dead ends: 1154 [2020-07-21 16:35:54,976 INFO L226 Difference]: Without dead ends: 723 [2020-07-21 16:35:54,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 190 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 16:35:54,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2020-07-21 16:35:55,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 580. [2020-07-21 16:35:55,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-21 16:35:55,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 811 transitions. [2020-07-21 16:35:55,013 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 811 transitions. Word has length 192 [2020-07-21 16:35:55,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:55,014 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 811 transitions. [2020-07-21 16:35:55,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:35:55,014 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 811 transitions. [2020-07-21 16:35:55,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-07-21 16:35:55,027 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:55,027 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:35:55,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:55,229 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:55,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:55,230 INFO L82 PathProgramCache]: Analyzing trace with hash 562765338, now seen corresponding path program 1 times [2020-07-21 16:35:55,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:55,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570117140] [2020-07-21 16:35:55,231 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 16:35:55,373 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:55,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:55,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 16:35:55,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:55,473 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 16:35:55,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:55,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570117140] [2020-07-21 16:35:55,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:55,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 16:35:55,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283298856] [2020-07-21 16:35:55,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 16:35:55,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:55,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 16:35:55,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 16:35:55,476 INFO L87 Difference]: Start difference. First operand 580 states and 811 transitions. Second operand 5 states. [2020-07-21 16:35:56,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:56,491 INFO L93 Difference]: Finished difference Result 1315 states and 1852 transitions. [2020-07-21 16:35:56,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:35:56,491 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 263 [2020-07-21 16:35:56,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:56,497 INFO L225 Difference]: With dead ends: 1315 [2020-07-21 16:35:56,498 INFO L226 Difference]: Without dead ends: 741 [2020-07-21 16:35:56,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:35:56,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2020-07-21 16:35:56,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 739. [2020-07-21 16:35:56,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-07-21 16:35:56,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1009 transitions. [2020-07-21 16:35:56,526 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1009 transitions. Word has length 263 [2020-07-21 16:35:56,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:56,526 INFO L479 AbstractCegarLoop]: Abstraction has 739 states and 1009 transitions. [2020-07-21 16:35:56,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 16:35:56,527 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1009 transitions. [2020-07-21 16:35:56,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-07-21 16:35:56,532 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:56,532 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:56,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:56,746 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:56,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:56,747 INFO L82 PathProgramCache]: Analyzing trace with hash -550746410, now seen corresponding path program 1 times [2020-07-21 16:35:56,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:56,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518656558] [2020-07-21 16:35:56,748 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 16:35:56,875 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:56,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:56,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:35:56,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:56,954 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 16:35:56,955 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:56,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518656558] [2020-07-21 16:35:56,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:56,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 16:35:56,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109611344] [2020-07-21 16:35:56,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 16:35:56,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:56,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 16:35:56,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 16:35:56,958 INFO L87 Difference]: Start difference. First operand 739 states and 1009 transitions. Second operand 5 states. [2020-07-21 16:35:57,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:57,965 INFO L93 Difference]: Finished difference Result 1649 states and 2326 transitions. [2020-07-21 16:35:57,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:35:57,969 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 281 [2020-07-21 16:35:57,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:57,981 INFO L225 Difference]: With dead ends: 1649 [2020-07-21 16:35:57,982 INFO L226 Difference]: Without dead ends: 916 [2020-07-21 16:35:57,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 16:35:57,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2020-07-21 16:35:58,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 890. [2020-07-21 16:35:58,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 890 states. [2020-07-21 16:35:58,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1140 transitions. [2020-07-21 16:35:58,039 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1140 transitions. Word has length 281 [2020-07-21 16:35:58,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:58,041 INFO L479 AbstractCegarLoop]: Abstraction has 890 states and 1140 transitions. [2020-07-21 16:35:58,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 16:35:58,041 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1140 transitions. [2020-07-21 16:35:58,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-07-21 16:35:58,050 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:58,051 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:58,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:58,267 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:58,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:58,268 INFO L82 PathProgramCache]: Analyzing trace with hash -182681854, now seen corresponding path program 1 times [2020-07-21 16:35:58,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:58,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [899746794] [2020-07-21 16:35:58,271 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 16:35:58,425 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:58,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:58,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:35:58,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:58,564 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 16:35:58,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:58,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [899746794] [2020-07-21 16:35:58,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:58,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 16:35:58,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417310985] [2020-07-21 16:35:58,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 16:35:58,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:58,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 16:35:58,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 16:35:58,567 INFO L87 Difference]: Start difference. First operand 890 states and 1140 transitions. Second operand 5 states. [2020-07-21 16:35:59,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:59,560 INFO L93 Difference]: Finished difference Result 1951 states and 2583 transitions. [2020-07-21 16:35:59,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:35:59,564 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 307 [2020-07-21 16:35:59,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:59,572 INFO L225 Difference]: With dead ends: 1951 [2020-07-21 16:35:59,573 INFO L226 Difference]: Without dead ends: 1210 [2020-07-21 16:35:59,578 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 303 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 16:35:59,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2020-07-21 16:35:59,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1194. [2020-07-21 16:35:59,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-07-21 16:35:59,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1488 transitions. [2020-07-21 16:35:59,626 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1488 transitions. Word has length 307 [2020-07-21 16:35:59,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:59,627 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 1488 transitions. [2020-07-21 16:35:59,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 16:35:59,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1488 transitions. [2020-07-21 16:35:59,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-21 16:35:59,631 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:59,632 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:59,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:59,848 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:59,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:59,849 INFO L82 PathProgramCache]: Analyzing trace with hash 745892726, now seen corresponding path program 1 times [2020-07-21 16:35:59,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:59,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494503280] [2020-07-21 16:35:59,850 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 16:36:00,049 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:36:00,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:36:00,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:36:00,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:36:00,084 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 16:36:00,084 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:36:00,143 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 334 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 16:36:00,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:36:00,250 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:00,251 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:00,255 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 16:36:00,255 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:00,535 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 252 proven. 77 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-21 16:36:00,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1494503280] [2020-07-21 16:36:00,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:36:00,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:36:00,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172979718] [2020-07-21 16:36:00,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:36:00,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:36:00,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:36:00,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:36:00,539 INFO L87 Difference]: Start difference. First operand 1194 states and 1488 transitions. Second operand 6 states. [2020-07-21 16:36:01,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:36:01,629 INFO L93 Difference]: Finished difference Result 2418 states and 3118 transitions. [2020-07-21 16:36:01,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:36:01,630 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 333 [2020-07-21 16:36:01,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:36:01,642 INFO L225 Difference]: With dead ends: 2418 [2020-07-21 16:36:01,643 INFO L226 Difference]: Without dead ends: 1373 [2020-07-21 16:36:01,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 662 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:36:01,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2020-07-21 16:36:01,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1351. [2020-07-21 16:36:01,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1351 states. [2020-07-21 16:36:01,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1608 transitions. [2020-07-21 16:36:01,702 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1608 transitions. Word has length 333 [2020-07-21 16:36:01,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:36:01,703 INFO L479 AbstractCegarLoop]: Abstraction has 1351 states and 1608 transitions. [2020-07-21 16:36:01,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:36:01,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1608 transitions. [2020-07-21 16:36:01,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-07-21 16:36:01,710 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:36:01,710 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:36:01,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:01,915 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:36:01,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:36:01,916 INFO L82 PathProgramCache]: Analyzing trace with hash 2013092669, now seen corresponding path program 1 times [2020-07-21 16:36:01,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:36:01,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870583583] [2020-07-21 16:36:01,918 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 16:36:02,066 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:36:02,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:36:02,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:36:02,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:36:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 16:36:02,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:36:02,370 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 259 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-07-21 16:36:02,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870583583] [2020-07-21 16:36:02,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:36:02,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:36:02,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744188554] [2020-07-21 16:36:02,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:36:02,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:36:02,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:36:02,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:36:02,375 INFO L87 Difference]: Start difference. First operand 1351 states and 1608 transitions. Second operand 7 states. [2020-07-21 16:36:04,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:36:04,106 INFO L93 Difference]: Finished difference Result 3860 states and 4614 transitions. [2020-07-21 16:36:04,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:36:04,108 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 342 [2020-07-21 16:36:04,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:36:04,117 INFO L225 Difference]: With dead ends: 3860 [2020-07-21 16:36:04,118 INFO L226 Difference]: Without dead ends: 2060 [2020-07-21 16:36:04,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 679 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:36:04,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2060 states. [2020-07-21 16:36:04,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2060 to 1341. [2020-07-21 16:36:04,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1341 states. [2020-07-21 16:36:04,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1523 transitions. [2020-07-21 16:36:04,169 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1523 transitions. Word has length 342 [2020-07-21 16:36:04,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:36:04,170 INFO L479 AbstractCegarLoop]: Abstraction has 1341 states and 1523 transitions. [2020-07-21 16:36:04,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:36:04,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1523 transitions. [2020-07-21 16:36:04,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-07-21 16:36:04,177 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:36:04,178 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 16:36:04,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:04,392 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:36:04,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:36:04,393 INFO L82 PathProgramCache]: Analyzing trace with hash 348873925, now seen corresponding path program 1 times [2020-07-21 16:36:04,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:36:04,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899342165] [2020-07-21 16:36:04,394 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:04,591 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:36:04,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:36:04,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-21 16:36:04,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:36:04,630 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:36:04,635 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:36:04,637 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:36:04,639 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:36:04,645 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:36:04,652 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:36:04,655 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:36:04,658 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:36:04,667 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:36:04,669 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:36:04,676 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:36:04,679 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:36:04,680 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:36:04,691 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:36:04,693 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:36:04,694 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:36:04,698 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:36:04,699 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:36:04,702 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:36:04,704 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:36:04,705 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:36:04,707 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:36:04,710 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:36:04,721 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:36:04,726 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:36:04,730 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:36:20,900 WARN L193 SmtUtils]: Spent 16.10 s on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-07-21 16:36:20,947 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 16:36:21,080 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 16:36:21,081 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:36:21,083 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:36:21,114 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:36:21,338 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 386 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 16:36:21,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:36:21,449 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:36:21,450 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:21,451 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:21,453 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:36:21,481 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:21,482 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:36:21,610 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:21,612 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:21,613 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:36:21,614 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:36:21,614 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:36:21,616 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:36:21,617 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:36:21,618 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:36:21,619 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:36:21,620 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:36:21,622 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:36:21,622 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:36:21,623 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:36:21,623 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:36:21,624 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:36:21,626 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:36:21,627 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:36:21,628 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:36:21,629 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:36:21,631 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 16:36:21,631 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:36:21,633 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 16:36:21,634 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:36:21,634 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:36:21,635 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:36:21,637 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:36:21,638 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:36:21,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1899342165] [2020-07-21 16:36:21,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 16:36:21,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-21 16:36:21,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233641810] [2020-07-21 16:36:21,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 16:36:21,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:36:21,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 16:36:21,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-21 16:36:21,792 INFO L87 Difference]: Start difference. First operand 1341 states and 1523 transitions. Second operand 8 states. [2020-07-21 16:36:26,815 WARN L193 SmtUtils]: Spent 4.30 s on a formula simplification. DAG size of input: 48 DAG size of output: 33 [2020-07-21 16:39:46,540 WARN L193 SmtUtils]: Spent 33.59 s on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-07-21 16:40:10,189 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 27 [2020-07-21 16:40:21,948 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 39 DAG size of output: 25 [2020-07-21 16:41:05,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:41:05,922 INFO L93 Difference]: Finished difference Result 4011 states and 4784 transitions. [2020-07-21 16:41:05,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 16:41:05,928 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 378 [2020-07-21 16:41:05,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:41:05,942 INFO L225 Difference]: With dead ends: 4011 [2020-07-21 16:41:05,943 INFO L226 Difference]: Without dead ends: 2819 [2020-07-21 16:41:05,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 625 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 57.0s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2020-07-21 16:41:05,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2819 states. [2020-07-21 16:41:06,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2819 to 2662. [2020-07-21 16:41:06,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2662 states. [2020-07-21 16:41:06,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2662 states to 2662 states and 3093 transitions. [2020-07-21 16:41:06,019 INFO L78 Accepts]: Start accepts. Automaton has 2662 states and 3093 transitions. Word has length 378 [2020-07-21 16:41:06,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:41:06,020 INFO L479 AbstractCegarLoop]: Abstraction has 2662 states and 3093 transitions. [2020-07-21 16:41:06,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 16:41:06,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2662 states and 3093 transitions. [2020-07-21 16:41:06,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2020-07-21 16:41:06,027 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:41:06,028 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 16:41:06,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:41:06,229 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:41:06,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:41:06,229 INFO L82 PathProgramCache]: Analyzing trace with hash -301430794, now seen corresponding path program 1 times [2020-07-21 16:41:06,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:41:06,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017763320] [2020-07-21 16:41:06,230 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:41:06,391 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:41:06,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:41:06,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 16:41:06,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:41:06,511 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:41:06,511 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:41:06,512 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:41:06,512 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:41:06,513 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:41:06,514 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:41:06,515 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:41:06,516 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:41:31,111 WARN L193 SmtUtils]: Spent 24.51 s on a formula simplification. DAG size of input: 69 DAG size of output: 34 [2020-07-21 16:41:31,171 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:41:33,603 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 32 [2020-07-21 16:41:33,712 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 16:41:33,712 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:41:33,713 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:41:33,829 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:41:34,086 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 185 proven. 197 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-07-21 16:41:34,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:41:34,393 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2020-07-21 16:41:34,491 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:41:34,491 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:34,492 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:34,493 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:41:34,624 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:34,625 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:41:35,144 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:35,147 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:35,147 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:35,148 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:35,149 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:35,150 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:35,151 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:35,152 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:35,153 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:35,153 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:41:35,154 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:41:35,154 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 16:41:35,155 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 16:41:35,156 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 16:41:35,157 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:41:35,158 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 16:41:35,158 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 16:41:35,160 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 16:41:35,161 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:41:35,161 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:41:35,161 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:41:35,162 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:41:35,163 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:41:35,164 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:41:35,165 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:41:35,166 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:41:35,167 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:41:35,167 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 16:41:35,169 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:41:35,169 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 16:41:35,170 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 16:41:35,170 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 16:41:35,221 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:35,222 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:35,223 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:35,223 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:35,224 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:35,225 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:35,225 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:35,226 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:41:35,676 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 377 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-21 16:41:35,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017763320] [2020-07-21 16:41:35,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:41:35,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2020-07-21 16:41:35,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959574673] [2020-07-21 16:41:35,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 16:41:35,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:41:35,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 16:41:35,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=101, Unknown=1, NotChecked=0, Total=132 [2020-07-21 16:41:35,678 INFO L87 Difference]: Start difference. First operand 2662 states and 3093 transitions. Second operand 12 states. [2020-07-21 16:41:55,373 WARN L193 SmtUtils]: Spent 15.17 s on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 16:42:00,445 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 21 [2020-07-21 16:42:06,731 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 20 [2020-07-21 16:42:09,224 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 16 [2020-07-21 16:42:21,914 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-07-21 16:42:51,075 WARN L193 SmtUtils]: Spent 12.49 s on a formula simplification that was a NOOP. DAG size: 38 [2020-07-21 16:43:25,411 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2020-07-21 16:43:25,823 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2020-07-21 16:43:44,519 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-07-21 16:43:44,836 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-07-21 16:43:47,181 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 19 [2020-07-21 16:44:08,881 WARN L193 SmtUtils]: Spent 8.34 s on a formula simplification that was a NOOP. DAG size: 43 [2020-07-21 16:44:22,860 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2020-07-21 16:44:23,294 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-07-21 16:44:48,445 WARN L193 SmtUtils]: Spent 22.75 s on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-07-21 16:44:56,069 WARN L193 SmtUtils]: Spent 5.36 s on a formula simplification. DAG size of input: 36 DAG size of output: 29 [2020-07-21 16:45:09,699 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 16 [2020-07-21 16:45:14,237 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 21 [2020-07-21 16:45:41,660 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2020-07-21 16:46:35,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:46:35,951 INFO L93 Difference]: Finished difference Result 6688 states and 8201 transitions. [2020-07-21 16:46:35,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-07-21 16:46:35,966 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 397 [2020-07-21 16:46:35,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:46:35,998 INFO L225 Difference]: With dead ends: 6688 [2020-07-21 16:46:35,999 INFO L226 Difference]: Without dead ends: 4175 [2020-07-21 16:46:36,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 857 GetRequests, 810 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 112.2s TimeCoverageRelationStatistics Valid=412, Invalid=1567, Unknown=1, NotChecked=0, Total=1980 [2020-07-21 16:46:36,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4175 states. [2020-07-21 16:46:36,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4175 to 4091. [2020-07-21 16:46:36,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4091 states. [2020-07-21 16:46:36,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4091 states to 4091 states and 4965 transitions. [2020-07-21 16:46:36,181 INFO L78 Accepts]: Start accepts. Automaton has 4091 states and 4965 transitions. Word has length 397 [2020-07-21 16:46:36,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:46:36,183 INFO L479 AbstractCegarLoop]: Abstraction has 4091 states and 4965 transitions. [2020-07-21 16:46:36,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 16:46:36,183 INFO L276 IsEmpty]: Start isEmpty. Operand 4091 states and 4965 transitions. [2020-07-21 16:46:36,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2020-07-21 16:46:36,202 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:46:36,202 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 16:46:36,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:46:36,417 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:46:36,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:46:36,418 INFO L82 PathProgramCache]: Analyzing trace with hash 252720706, now seen corresponding path program 1 times [2020-07-21 16:46:36,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:46:36,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640100784] [2020-07-21 16:46:36,419 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:46:36,666 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:46:36,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:46:36,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:46:36,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:46:36,694 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:46:36,695 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:46:36,697 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:46:36,697 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:46:36,697 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:46:36,698 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:46:36,699 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:46:37,001 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 23 [2020-07-21 16:46:37,275 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-07-21 16:46:37,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:46:37,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640100784] [2020-07-21 16:46:37,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:46:37,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:46:37,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185829616] [2020-07-21 16:46:37,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:46:37,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:46:37,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:46:37,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:46:37,278 INFO L87 Difference]: Start difference. First operand 4091 states and 4965 transitions. Second operand 3 states. [2020-07-21 16:46:45,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:46:45,041 INFO L93 Difference]: Finished difference Result 5265 states and 6443 transitions. [2020-07-21 16:46:45,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:46:45,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 407 [2020-07-21 16:46:45,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:46:45,056 INFO L225 Difference]: With dead ends: 5265 [2020-07-21 16:46:45,056 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:46:45,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:46:45,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:46:45,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:46:45,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:46:45,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:46:45,071 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 407 [2020-07-21 16:46:45,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:46:45,072 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:46:45,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:46:45,072 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:46:45,072 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:46:45,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:46:45,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:46:46,454 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 284 DAG size of output: 254 [2020-07-21 16:46:46,685 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 284 DAG size of output: 254 [2020-07-21 16:46:46,869 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 11 [2020-07-21 16:46:47,310 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 24 [2020-07-21 16:47:42,155 WARN L193 SmtUtils]: Spent 54.80 s on a formula simplification. DAG size of input: 289 DAG size of output: 67 [2020-07-21 16:47:42,283 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 11 [2020-07-21 16:48:05,085 WARN L193 SmtUtils]: Spent 22.80 s on a formula simplification. DAG size of input: 272 DAG size of output: 50 [2020-07-21 16:48:33,054 WARN L193 SmtUtils]: Spent 27.96 s on a formula simplification. DAG size of input: 272 DAG size of output: 50 [2020-07-21 16:48:33,061 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:48:33,061 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-21 16:48:33,061 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:48:33,061 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 16:48:33,062 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,062 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,062 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,062 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,062 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,062 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,062 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 16:48:33,062 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 16:48:33,062 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 16:48:33,063 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 16:48:33,063 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 16:48:33,063 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 16:48:33,063 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 16:48:33,063 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 16:48:33,063 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 16:48:33,063 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 16:48:33,063 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 16:48:33,064 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,064 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,064 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,064 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,064 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,064 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 16:48:33,064 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 16:48:33,064 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 16:48:33,065 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 16:48:33,065 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 16:48:33,065 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 16:48:33,065 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 16:48:33,065 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 16:48:33,065 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 16:48:33,065 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 16:48:33,065 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 16:48:33,065 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 16:48:33,065 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 16:48:33,065 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-07-21 16:48:33,066 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 16:48:33,066 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,066 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,066 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,066 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,066 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,066 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 16:48:33,066 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 16:48:33,066 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 16:48:33,067 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 16:48:33,067 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 16:48:33,067 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 16:48:33,067 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 16:48:33,067 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 16:48:33,067 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 16:48:33,067 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 16:48:33,067 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,068 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,068 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,068 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,068 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,068 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 16:48:33,068 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 16:48:33,068 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 16:48:33,068 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 16:48:33,069 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 16:48:33,069 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 16:48:33,069 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 16:48:33,069 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 16:48:33,069 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 16:48:33,069 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 16:48:33,069 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 16:48:33,069 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 16:48:33,069 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 16:48:33,070 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,070 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,070 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,070 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,070 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,070 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 16:48:33,070 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 16:48:33,070 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 16:48:33,071 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 16:48:33,071 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 16:48:33,071 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 16:48:33,071 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 16:48:33,071 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 16:48:33,071 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 16:48:33,071 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,071 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,071 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,072 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,072 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,072 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,072 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,072 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 16:48:33,072 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 16:48:33,072 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 16:48:33,072 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 16:48:33,073 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 16:48:33,073 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 16:48:33,073 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 16:48:33,073 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 16:48:33,073 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 16:48:33,073 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 16:48:33,073 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 16:48:33,073 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 16:48:33,074 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 16:48:33,074 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,074 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,074 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,074 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,074 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 16:48:33,074 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,074 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,075 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 16:48:33,075 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 16:48:33,075 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 16:48:33,075 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 16:48:33,075 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 16:48:33,075 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 16:48:33,075 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 16:48:33,075 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 16:48:33,075 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 16:48:33,076 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 16:48:33,076 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 16:48:33,076 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 16:48:33,076 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 16:48:33,076 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,076 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,076 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,076 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,076 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,077 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,077 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 16:48:33,077 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 16:48:33,077 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 16:48:33,077 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 16:48:33,077 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 16:48:33,077 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 16:48:33,077 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 16:48:33,078 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 16:48:33,078 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 16:48:33,078 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 16:48:33,078 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 16:48:33,078 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a19~0)| 9))) (.cse1 (and (not (<= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)))) (.cse2 (not (<= 2 |old(~a10~0)|))) (.cse5 (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)))) (and (or (<= 9 ~a19~0) (not (< |old(~a10~0)| 4)) (<= 23 ~a1~0) .cse0 .cse1 .cse2) (or (forall ((v_~a1~0_433 Int)) (let ((.cse4 (mod v_~a1~0_433 25))) (let ((.cse3 (mod (+ (* .cse4 5) 10) 25))) (or (not (<= .cse3 (+ |old(~a1~0)| 12))) (not (< v_~a1~0_433 0)) (= 0 .cse3) (= 0 .cse4) (not (< (* 5 .cse4) 65)))))) .cse5 (not (<= |old(~a19~0)| 8))) (or (not (<= 4 |old(~a10~0)|)) .cse5 .cse0) (or .cse5 .cse0 .cse1 .cse2) (or .cse5 (not (<= |old(~a10~0)| 2))))) [2020-07-21 16:48:33,078 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 16:48:33,078 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 16:48:33,078 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 16:48:33,078 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,078 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,079 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,079 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,079 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,079 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,079 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 16:48:33,079 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 16:48:33,079 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 16:48:33,079 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 16:48:33,079 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 16:48:33,079 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 16:48:33,079 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 16:48:33,079 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 16:48:33,079 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 16:48:33,079 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 16:48:33,079 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 16:48:33,079 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 16:48:33,080 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 16:48:33,080 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,080 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,080 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,080 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,080 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,080 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,080 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 16:48:33,080 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 16:48:33,080 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 16:48:33,080 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 16:48:33,080 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 16:48:33,080 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 16:48:33,080 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 16:48:33,080 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 16:48:33,080 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 16:48:33,081 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 16:48:33,081 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 16:48:33,081 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 16:48:33,081 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,081 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,081 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,081 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,081 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,081 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:48:33,081 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 16:48:33,081 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 16:48:33,081 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 16:48:33,081 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 16:48:33,081 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 16:48:33,081 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 16:48:33,082 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 16:48:33,082 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 16:48:33,082 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 16:48:33,082 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 16:48:33,082 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 16:48:33,082 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 16:48:33,082 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:48:33,082 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0) (= 23 ~a1~0)) [2020-07-21 16:48:33,082 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:48:33,082 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:48:33,082 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-21 16:48:33,082 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 16:48:33,082 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse2 (<= ~a19~0 9))) (or (and (<= ~a19~0 8) (exists ((v_~a1~0_433 Int)) (let ((.cse1 (mod v_~a1~0_433 25))) (let ((.cse0 (mod (+ (* .cse1 5) 10) 25))) (and (not (= 0 .cse0)) (< (* 5 .cse1) 65) (not (= 0 .cse1)) (<= .cse0 (+ ~a1~0 12)) (< v_~a1~0_433 0)))))) (and .cse2 (<= 9 ~a19~0)) (and .cse2 (<= 4 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (not (<= |old(~a19~0)| 9)))) [2020-07-21 16:48:33,083 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 16:48:33,083 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 16:48:33,083 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse2 (<= ~a19~0 9))) (or (and (<= ~a19~0 8) (exists ((v_~a1~0_433 Int)) (let ((.cse1 (mod v_~a1~0_433 25))) (let ((.cse0 (mod (+ (* .cse1 5) 10) 25))) (and (not (= 0 .cse0)) (< (* 5 .cse1) 65) (not (= 0 .cse1)) (<= .cse0 (+ ~a1~0 12)) (< v_~a1~0_433 0)))))) (and .cse2 (<= 9 ~a19~0)) (and .cse2 (<= 4 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (not (<= |old(~a19~0)| 9)))) [2020-07-21 16:48:33,083 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 16:48:33,094 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,095 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,096 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,096 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,098 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,108 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,108 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,108 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,109 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,109 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:48:33 BoogieIcfgContainer [2020-07-21 16:48:33,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:48:33,118 INFO L168 Benchmark]: Toolchain (without parser) took 765498.99 ms. Allocated memory was 145.8 MB in the beginning and 561.5 MB in the end (delta: 415.8 MB). Free memory was 101.8 MB in the beginning and 363.3 MB in the end (delta: -261.6 MB). Peak memory consumption was 491.9 MB. Max. memory is 7.1 GB. [2020-07-21 16:48:33,119 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 16:48:33,120 INFO L168 Benchmark]: CACSL2BoogieTranslator took 850.93 ms. Allocated memory was 145.8 MB in the beginning and 205.0 MB in the end (delta: 59.2 MB). Free memory was 101.3 MB in the beginning and 170.6 MB in the end (delta: -69.3 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2020-07-21 16:48:33,121 INFO L168 Benchmark]: Boogie Preprocessor took 133.79 ms. Allocated memory is still 205.0 MB. Free memory was 170.6 MB in the beginning and 166.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-21 16:48:33,121 INFO L168 Benchmark]: RCFGBuilder took 1333.95 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 165.8 MB in the beginning and 182.5 MB in the end (delta: -16.7 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2020-07-21 16:48:33,122 INFO L168 Benchmark]: TraceAbstraction took 763170.70 ms. Allocated memory was 238.6 MB in the beginning and 561.5 MB in the end (delta: 323.0 MB). Free memory was 181.0 MB in the beginning and 363.3 MB in the end (delta: -182.3 MB). Peak memory consumption was 478.3 MB. Max. memory is 7.1 GB. [2020-07-21 16:48:33,129 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 850.93 ms. Allocated memory was 145.8 MB in the beginning and 205.0 MB in the end (delta: 59.2 MB). Free memory was 101.3 MB in the beginning and 170.6 MB in the end (delta: -69.3 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.79 ms. Allocated memory is still 205.0 MB. Free memory was 170.6 MB in the beginning and 166.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1333.95 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 165.8 MB in the beginning and 182.5 MB in the end (delta: -16.7 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 763170.70 ms. Allocated memory was 238.6 MB in the beginning and 561.5 MB in the end (delta: 323.0 MB). Free memory was 181.0 MB in the beginning and 363.3 MB in the end (delta: -182.3 MB). Peak memory consumption was 478.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 187]: 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 [2020-07-21 16:48:33,135 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,136 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,136 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,136 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,136 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,138 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] [2020-07-21 16:48:33,138 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_433,QUANTIFIED] Derived loop invariant: (((((((a19 <= 8 && (\exists v_~a1~0_433 : int :: (((!(0 == (v_~a1~0_433 % 25 * 5 + 10) % 25) && 5 * (v_~a1~0_433 % 25) < 65) && !(0 == v_~a1~0_433 % 25)) && (v_~a1~0_433 % 25 * 5 + 10) % 25 <= a1 + 12) && v_~a1~0_433 < 0)) || (a19 <= 9 && 9 <= a19)) || (a19 <= 9 && 4 <= a10)) || !(\old(a10) <= 0)) || !(23 == \old(a1))) || !(9 <= \old(a19))) || a10 <= 2) || !(\old(a19) <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 655.2s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 601.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 107.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 531 SDtfs, 3502 SDslu, 507 SDs, 0 SdLazy, 11199 SolverSat, 1898 SolverUnsat, 199 SolverUnknown, 0 SolverNotchecked, 444.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4660 GetRequests, 4552 SyntacticMatches, 9 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 169.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4091occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 1741 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 125 PreInvPairs, 243 NumberOfFragments, 384 HoareAnnotationTreeSize, 125 FomulaSimplifications, 42570 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 27798 FormulaSimplificationTreeSizeReductionInter, 106.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 48.5s InterpolantComputationTime, 3248 NumberOfCodeBlocks, 3248 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 4305 ConstructedInterpolants, 75 QuantifiedInterpolants, 5517231 SizeOfPredicates, 18 NumberOfNonLiveVariables, 5313 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 3920/4279 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...