/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 BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:30:05,412 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:30:05,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:30:05,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:30:05,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:30:05,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:30:05,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:30:05,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:30:05,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:30:05,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:30:05,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:30:05,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:30:05,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:30:05,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:30:05,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:30:05,498 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 01:30:05,521 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:30:05,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:30:05,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:30:05,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:30:05,524 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:30:05,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:30:05,525 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:30:05,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:30:05,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:30:05,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:30:05,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:30:05,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:30:05,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:30:05,527 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:30:05,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:30:05,528 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:30:05,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:30:05,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:30:05,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:30:05,528 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:30:05,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:30:05,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:30:05,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:30:05,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:30:05,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:30:05,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:30:05,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:05,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:30:05,530 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:30:05,530 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 -> BIGGEST_EQUIVALENCE_CLASS 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 -> 4 [2020-07-21 01:30:05,809 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:30:05,820 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:30:05,823 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:30:05,824 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:30:05,824 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:30:05,825 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2020-07-21 01:30:05,904 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/722713b61/92291b4f92ec4f9381a15f0a7db8bff2/FLAG2abe86d55 [2020-07-21 01:30:06,417 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:30:06,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2020-07-21 01:30:06,429 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/722713b61/92291b4f92ec4f9381a15f0a7db8bff2/FLAG2abe86d55 [2020-07-21 01:30:06,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/722713b61/92291b4f92ec4f9381a15f0a7db8bff2 [2020-07-21 01:30:06,748 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:30:06,750 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:30:06,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:30:06,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:30:06,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:30:06,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:30:06" (1/1) ... [2020-07-21 01:30:06,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27edf361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:06, skipping insertion in model container [2020-07-21 01:30:06,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:30:06" (1/1) ... [2020-07-21 01:30:06,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:30:06,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:30:07,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:30:07,240 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:30:07,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:30:07,455 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:30:07,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:07 WrapperNode [2020-07-21 01:30:07,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:30:07,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:30:07,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:30:07,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:30:07,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:07" (1/1) ... [2020-07-21 01:30:07,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:07" (1/1) ... [2020-07-21 01:30:07,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:07" (1/1) ... [2020-07-21 01:30:07,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:07" (1/1) ... [2020-07-21 01:30:07,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:07" (1/1) ... [2020-07-21 01:30:07,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:07" (1/1) ... [2020-07-21 01:30:07,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:07" (1/1) ... [2020-07-21 01:30:07,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:30:07,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:30:07,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:30:07,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:30:07,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:07" (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 01:30:07,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:30:07,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:30:07,667 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:30:07,667 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:30:07,667 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:30:07,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:30:07,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:30:07,668 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:30:07,668 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:30:07,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:30:07,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:30:09,015 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:30:09,016 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:30:09,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:30:09 BoogieIcfgContainer [2020-07-21 01:30:09,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:30:09,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:30:09,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:30:09,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:30:09,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:30:06" (1/3) ... [2020-07-21 01:30:09,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3719ee24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:30:09, skipping insertion in model container [2020-07-21 01:30:09,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:07" (2/3) ... [2020-07-21 01:30:09,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3719ee24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:30:09, skipping insertion in model container [2020-07-21 01:30:09,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:30:09" (3/3) ... [2020-07-21 01:30:09,038 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label45.c [2020-07-21 01:30:09,050 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:30:09,061 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:30:09,077 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:30:09,117 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:30:09,118 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:30:09,118 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:30:09,118 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:30:09,119 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:30:09,119 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:30:09,119 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:30:09,119 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:30:09,148 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 01:30:09,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-21 01:30:09,162 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:09,163 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] [2020-07-21 01:30:09,164 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:09,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:09,171 INFO L82 PathProgramCache]: Analyzing trace with hash 312365279, now seen corresponding path program 1 times [2020-07-21 01:30:09,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:09,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540982637] [2020-07-21 01:30:09,182 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 01:30:09,304 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:30:09,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:09,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:30:09,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:09,381 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 01:30:09,381 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:30:09,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [540982637] [2020-07-21 01:30:09,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:30:09,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:30:09,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105815161] [2020-07-21 01:30:09,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:30:09,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:09,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:30:09,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:30:09,406 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 01:30:10,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:10,501 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 01:30:10,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:30:10,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-07-21 01:30:10,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:10,519 INFO L225 Difference]: With dead ends: 571 [2020-07-21 01:30:10,519 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 01:30:10,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 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 01:30:10,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 01:30:10,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 01:30:10,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 01:30:10,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-21 01:30:10,609 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 44 [2020-07-21 01:30:10,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:10,610 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-21 01:30:10,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:30:10,610 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-21 01:30:10,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-07-21 01:30:10,617 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:10,617 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:30:10,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:10,822 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:10,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:10,823 INFO L82 PathProgramCache]: Analyzing trace with hash 488719490, now seen corresponding path program 1 times [2020-07-21 01:30:10,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:10,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807327120] [2020-07-21 01:30:10,825 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 01:30:10,928 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:30:10,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:10,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 01:30:10,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:11,016 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 01:30:11,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:30:11,124 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 01:30:11,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807327120] [2020-07-21 01:30:11,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:30:11,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-21 01:30:11,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671142544] [2020-07-21 01:30:11,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 01:30:11,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:11,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 01:30:11,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:30:11,128 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 4 states. [2020-07-21 01:30:11,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:11,864 INFO L93 Difference]: Finished difference Result 586 states and 788 transitions. [2020-07-21 01:30:11,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 01:30:11,865 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 114 [2020-07-21 01:30:11,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:11,871 INFO L225 Difference]: With dead ends: 586 [2020-07-21 01:30:11,871 INFO L226 Difference]: Without dead ends: 584 [2020-07-21 01:30:11,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 220 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:30:11,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-07-21 01:30:11,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2020-07-21 01:30:11,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-07-21 01:30:11,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 786 transitions. [2020-07-21 01:30:11,908 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 786 transitions. Word has length 114 [2020-07-21 01:30:11,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:11,909 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 786 transitions. [2020-07-21 01:30:11,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 01:30:11,910 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 786 transitions. [2020-07-21 01:30:11,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-07-21 01:30:11,912 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:11,913 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:30:12,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:12,127 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:12,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:12,128 INFO L82 PathProgramCache]: Analyzing trace with hash -28440279, now seen corresponding path program 1 times [2020-07-21 01:30:12,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:12,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [742694175] [2020-07-21 01:30:12,130 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 01:30:12,204 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:30:12,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:12,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 01:30:12,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:12,304 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:12,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:30:12,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [742694175] [2020-07-21 01:30:12,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:30:12,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:30:12,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717582300] [2020-07-21 01:30:12,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:30:12,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:12,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:30:12,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:30:12,319 INFO L87 Difference]: Start difference. First operand 584 states and 786 transitions. Second operand 5 states. [2020-07-21 01:30:13,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:13,322 INFO L93 Difference]: Finished difference Result 1321 states and 1762 transitions. [2020-07-21 01:30:13,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:30:13,322 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 117 [2020-07-21 01:30:13,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:13,327 INFO L225 Difference]: With dead ends: 1321 [2020-07-21 01:30:13,327 INFO L226 Difference]: Without dead ends: 743 [2020-07-21 01:30:13,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 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 01:30:13,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2020-07-21 01:30:13,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 596. [2020-07-21 01:30:13,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-07-21 01:30:13,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 794 transitions. [2020-07-21 01:30:13,372 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 794 transitions. Word has length 117 [2020-07-21 01:30:13,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:13,373 INFO L479 AbstractCegarLoop]: Abstraction has 596 states and 794 transitions. [2020-07-21 01:30:13,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:30:13,373 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 794 transitions. [2020-07-21 01:30:13,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-21 01:30:13,378 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:13,379 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:30:13,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:13,588 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:13,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:13,589 INFO L82 PathProgramCache]: Analyzing trace with hash -681057027, now seen corresponding path program 1 times [2020-07-21 01:30:13,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:13,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704824166] [2020-07-21 01:30:13,591 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 01:30:13,676 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:30:13,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:13,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 01:30:13,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:13,714 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:30:13,715 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:30:15,852 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 25 [2020-07-21 01:30:15,884 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:30:16,093 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:16,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:30:16,142 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:30:16,144 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:30:16,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704824166] [2020-07-21 01:30:16,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:30:16,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-07-21 01:30:16,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026636156] [2020-07-21 01:30:16,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:30:16,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:16,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:30:16,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:30:16,176 INFO L87 Difference]: Start difference. First operand 596 states and 794 transitions. Second operand 6 states. [2020-07-21 01:30:19,580 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 29 [2020-07-21 01:30:21,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:21,465 INFO L93 Difference]: Finished difference Result 1965 states and 2923 transitions. [2020-07-21 01:30:21,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:30:21,466 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2020-07-21 01:30:21,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:21,478 INFO L225 Difference]: With dead ends: 1965 [2020-07-21 01:30:21,478 INFO L226 Difference]: Without dead ends: 1518 [2020-07-21 01:30:21,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-07-21 01:30:21,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2020-07-21 01:30:21,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1337. [2020-07-21 01:30:21,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2020-07-21 01:30:21,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1832 transitions. [2020-07-21 01:30:21,543 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1832 transitions. Word has length 123 [2020-07-21 01:30:21,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:21,544 INFO L479 AbstractCegarLoop]: Abstraction has 1337 states and 1832 transitions. [2020-07-21 01:30:21,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:30:21,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1832 transitions. [2020-07-21 01:30:21,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-21 01:30:21,549 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:21,549 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:30:21,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:21,763 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:21,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:21,763 INFO L82 PathProgramCache]: Analyzing trace with hash 844100826, now seen corresponding path program 1 times [2020-07-21 01:30:21,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:21,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786762483] [2020-07-21 01:30:21,765 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 01:30:21,841 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:30:21,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:21,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:30:21,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:21,920 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:21,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:30:21,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786762483] [2020-07-21 01:30:21,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:30:21,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:30:21,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785647222] [2020-07-21 01:30:21,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:30:21,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:21,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:30:21,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:30:21,923 INFO L87 Difference]: Start difference. First operand 1337 states and 1832 transitions. Second operand 5 states. [2020-07-21 01:30:23,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:23,005 INFO L93 Difference]: Finished difference Result 3161 states and 4641 transitions. [2020-07-21 01:30:23,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:30:23,005 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 166 [2020-07-21 01:30:23,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:23,029 INFO L225 Difference]: With dead ends: 3161 [2020-07-21 01:30:23,030 INFO L226 Difference]: Without dead ends: 1973 [2020-07-21 01:30:23,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 162 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 01:30:23,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1973 states. [2020-07-21 01:30:23,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1973 to 1935. [2020-07-21 01:30:23,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1935 states. [2020-07-21 01:30:23,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2558 transitions. [2020-07-21 01:30:23,127 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2558 transitions. Word has length 166 [2020-07-21 01:30:23,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:23,128 INFO L479 AbstractCegarLoop]: Abstraction has 1935 states and 2558 transitions. [2020-07-21 01:30:23,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:30:23,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2558 transitions. [2020-07-21 01:30:23,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-07-21 01:30:23,134 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:23,134 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 01:30:23,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:23,344 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:23,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:23,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1538101510, now seen corresponding path program 1 times [2020-07-21 01:30:23,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:23,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493072532] [2020-07-21 01:30:23,345 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 01:30:23,450 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:30:23,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:23,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:30:23,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:23,544 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:23,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:30:23,657 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:23,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493072532] [2020-07-21 01:30:23,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:30:23,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:30:23,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978721256] [2020-07-21 01:30:23,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:30:23,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:23,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:30:23,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:30:23,660 INFO L87 Difference]: Start difference. First operand 1935 states and 2558 transitions. Second operand 7 states. [2020-07-21 01:30:25,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:25,481 INFO L93 Difference]: Finished difference Result 4470 states and 6155 transitions. [2020-07-21 01:30:25,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:30:25,482 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-07-21 01:30:25,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:25,497 INFO L225 Difference]: With dead ends: 4470 [2020-07-21 01:30:25,498 INFO L226 Difference]: Without dead ends: 2684 [2020-07-21 01:30:25,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 384 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:30:25,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2020-07-21 01:30:25,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 2523. [2020-07-21 01:30:25,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2523 states. [2020-07-21 01:30:25,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3277 transitions. [2020-07-21 01:30:25,607 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3277 transitions. Word has length 193 [2020-07-21 01:30:25,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:25,608 INFO L479 AbstractCegarLoop]: Abstraction has 2523 states and 3277 transitions. [2020-07-21 01:30:25,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:30:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3277 transitions. [2020-07-21 01:30:25,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-07-21 01:30:25,615 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:25,615 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:30:25,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:25,831 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:25,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:25,831 INFO L82 PathProgramCache]: Analyzing trace with hash 561580173, now seen corresponding path program 1 times [2020-07-21 01:30:25,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:25,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22237551] [2020-07-21 01:30:25,832 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 01:30:25,939 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:30:25,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:25,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:30:25,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:25,993 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:25,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:30:26,123 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:26,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22237551] [2020-07-21 01:30:26,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:30:26,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:30:26,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135705758] [2020-07-21 01:30:26,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:30:26,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:26,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:30:26,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:30:26,126 INFO L87 Difference]: Start difference. First operand 2523 states and 3277 transitions. Second operand 7 states. [2020-07-21 01:30:27,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:27,485 INFO L93 Difference]: Finished difference Result 5779 states and 7613 transitions. [2020-07-21 01:30:27,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:30:27,493 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2020-07-21 01:30:27,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:27,509 INFO L225 Difference]: With dead ends: 5779 [2020-07-21 01:30:27,510 INFO L226 Difference]: Without dead ends: 3405 [2020-07-21 01:30:27,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 387 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:30:27,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3405 states. [2020-07-21 01:30:27,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3405 to 3109. [2020-07-21 01:30:27,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3109 states. [2020-07-21 01:30:27,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 3734 transitions. [2020-07-21 01:30:27,605 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 3734 transitions. Word has length 196 [2020-07-21 01:30:27,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:27,605 INFO L479 AbstractCegarLoop]: Abstraction has 3109 states and 3734 transitions. [2020-07-21 01:30:27,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:30:27,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 3734 transitions. [2020-07-21 01:30:27,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-07-21 01:30:27,613 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:27,613 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:30:27,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:27,827 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:27,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:27,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1367628375, now seen corresponding path program 1 times [2020-07-21 01:30:27,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:27,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68017905] [2020-07-21 01:30:27,828 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 01:30:27,978 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:30:27,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:27,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-21 01:30:27,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:28,094 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2020-07-21 01:30:28,094 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:30:28,095 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:30:28,128 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:30:28,225 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 223 proven. 69 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-07-21 01:30:28,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:30:28,329 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:30:28,330 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:30:28,331 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:30:28,332 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:30:28,364 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:30:28,365 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:30:28,522 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:30:28,524 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:30:28,581 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:30:28,582 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:30:28,850 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 116 proven. 210 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 01:30:28,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68017905] [2020-07-21 01:30:28,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:30:28,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2020-07-21 01:30:28,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886445077] [2020-07-21 01:30:28,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-21 01:30:28,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:28,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-21 01:30:28,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-07-21 01:30:28,853 INFO L87 Difference]: Start difference. First operand 3109 states and 3734 transitions. Second operand 13 states. [2020-07-21 01:30:33,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:33,966 INFO L93 Difference]: Finished difference Result 7847 states and 9749 transitions. [2020-07-21 01:30:33,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-07-21 01:30:33,967 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 279 [2020-07-21 01:30:33,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:33,989 INFO L225 Difference]: With dead ends: 7847 [2020-07-21 01:30:33,989 INFO L226 Difference]: Without dead ends: 4887 [2020-07-21 01:30:33,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 571 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=398, Invalid=1162, Unknown=0, NotChecked=0, Total=1560 [2020-07-21 01:30:34,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4887 states. [2020-07-21 01:30:34,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4887 to 4001. [2020-07-21 01:30:34,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4001 states. [2020-07-21 01:30:34,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4001 states to 4001 states and 4752 transitions. [2020-07-21 01:30:34,117 INFO L78 Accepts]: Start accepts. Automaton has 4001 states and 4752 transitions. Word has length 279 [2020-07-21 01:30:34,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:34,118 INFO L479 AbstractCegarLoop]: Abstraction has 4001 states and 4752 transitions. [2020-07-21 01:30:34,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-21 01:30:34,118 INFO L276 IsEmpty]: Start isEmpty. Operand 4001 states and 4752 transitions. [2020-07-21 01:30:34,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-07-21 01:30:34,127 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:34,127 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:30:34,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:34,344 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:34,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:34,345 INFO L82 PathProgramCache]: Analyzing trace with hash 862993498, now seen corresponding path program 1 times [2020-07-21 01:30:34,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:34,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319800585] [2020-07-21 01:30:34,346 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 01:30:34,451 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:30:34,451 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:34,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-21 01:30:34,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:34,678 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-07-21 01:30:34,679 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:30:34,679 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:30:34,680 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 01:30:34,681 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:30:34,684 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 01:30:34,685 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 01:30:34,686 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:30:34,939 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 311 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-07-21 01:30:34,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:30:35,229 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:30:35,230 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:30:35,556 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 192 proven. 82 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-07-21 01:30:35,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319800585] [2020-07-21 01:30:35,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:30:35,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 15 [2020-07-21 01:30:35,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745459602] [2020-07-21 01:30:35,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-21 01:30:35,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:35,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-21 01:30:35,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-07-21 01:30:35,559 INFO L87 Difference]: Start difference. First operand 4001 states and 4752 transitions. Second operand 15 states. [2020-07-21 01:30:37,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:37,574 INFO L93 Difference]: Finished difference Result 8150 states and 9895 transitions. [2020-07-21 01:30:37,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 01:30:37,575 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 292 [2020-07-21 01:30:37,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:37,597 INFO L225 Difference]: With dead ends: 8150 [2020-07-21 01:30:37,597 INFO L226 Difference]: Without dead ends: 4222 [2020-07-21 01:30:37,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 574 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2020-07-21 01:30:37,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4222 states. [2020-07-21 01:30:37,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4222 to 4037. [2020-07-21 01:30:37,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4037 states. [2020-07-21 01:30:37,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4037 states to 4037 states and 4785 transitions. [2020-07-21 01:30:37,728 INFO L78 Accepts]: Start accepts. Automaton has 4037 states and 4785 transitions. Word has length 292 [2020-07-21 01:30:37,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:37,729 INFO L479 AbstractCegarLoop]: Abstraction has 4037 states and 4785 transitions. [2020-07-21 01:30:37,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-21 01:30:37,729 INFO L276 IsEmpty]: Start isEmpty. Operand 4037 states and 4785 transitions. [2020-07-21 01:30:37,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-07-21 01:30:37,740 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:37,740 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:30:37,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:37,955 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:37,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:37,956 INFO L82 PathProgramCache]: Analyzing trace with hash -232684446, now seen corresponding path program 1 times [2020-07-21 01:30:37,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:37,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675393779] [2020-07-21 01:30:37,957 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 01:30:38,109 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:30:38,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:38,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-21 01:30:38,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:38,154 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:30:38,155 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:30:38,156 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:38,157 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:30:38,158 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:38,159 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:38,160 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:30:38,162 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:38,163 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:30:38,164 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:30:38,164 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:30:38,165 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:30:38,166 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:30:38,166 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:30:38,167 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:30:38,168 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:38,170 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:30:38,171 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:38,172 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:30:38,173 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:38,173 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:30:38,174 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:38,175 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:38,176 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:30:38,177 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:38,178 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:30:58,796 WARN L193 SmtUtils]: Spent 20.56 s on a formula simplification. DAG size of input: 69 DAG size of output: 38 [2020-07-21 01:30:58,828 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:30:58,943 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-07-21 01:30:59,198 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 320 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-07-21 01:30:59,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:30:59,320 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:30:59,505 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:30:59,506 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:30:59,506 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:30:59,508 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:30:59,508 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:30:59,509 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:30:59,510 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:30:59,511 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:30:59,512 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:30:59,513 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:30:59,514 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:30:59,514 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:30:59,515 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:30:59,516 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:30:59,517 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:30:59,518 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:30:59,519 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:30:59,519 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:30:59,521 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:30:59,521 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:30:59,522 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:30:59,523 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:30:59,523 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:30:59,525 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:30:59,526 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:30:59,526 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:30:59,527 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:30:59,528 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:30:59,528 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:30:59,529 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:30:59,530 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:31:07,773 WARN L193 SmtUtils]: Spent 8.16 s on a formula simplification. DAG size of input: 67 DAG size of output: 20 [2020-07-21 01:31:07,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [675393779] [2020-07-21 01:31:07,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:31:07,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-21 01:31:07,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589863890] [2020-07-21 01:31:07,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 01:31:07,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:31:07,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 01:31:07,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-07-21 01:31:07,777 INFO L87 Difference]: Start difference. First operand 4037 states and 4785 transitions. Second operand 9 states. [2020-07-21 01:31:11,245 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 33 [2020-07-21 01:31:27,022 WARN L193 SmtUtils]: Spent 15.09 s on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2020-07-21 01:31:27,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:31:27,125 INFO L93 Difference]: Finished difference Result 8664 states and 10371 transitions. [2020-07-21 01:31:27,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-21 01:31:27,126 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 328 [2020-07-21 01:31:27,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:31:27,145 INFO L225 Difference]: With dead ends: 8664 [2020-07-21 01:31:27,145 INFO L226 Difference]: Without dead ends: 4778 [2020-07-21 01:31:27,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 523 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 45.3s TimeCoverageRelationStatistics Valid=223, Invalid=533, Unknown=0, NotChecked=0, Total=756 [2020-07-21 01:31:27,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4778 states. [2020-07-21 01:31:27,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4778 to 4335. [2020-07-21 01:31:27,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4335 states. [2020-07-21 01:31:27,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4335 states to 4335 states and 5110 transitions. [2020-07-21 01:31:27,248 INFO L78 Accepts]: Start accepts. Automaton has 4335 states and 5110 transitions. Word has length 328 [2020-07-21 01:31:27,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:31:27,249 INFO L479 AbstractCegarLoop]: Abstraction has 4335 states and 5110 transitions. [2020-07-21 01:31:27,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 01:31:27,249 INFO L276 IsEmpty]: Start isEmpty. Operand 4335 states and 5110 transitions. [2020-07-21 01:31:27,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-07-21 01:31:27,259 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:31:27,260 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:31:27,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:31:27,473 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:31:27,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:31:27,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1192928523, now seen corresponding path program 1 times [2020-07-21 01:31:27,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:31:27,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076391292] [2020-07-21 01:31:27,474 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 01:31:27,853 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:31:27,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:31:27,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:31:27,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:31:27,925 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-07-21 01:31:27,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:31:27,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076391292] [2020-07-21 01:31:27,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:31:27,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:31:27,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286588288] [2020-07-21 01:31:27,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:31:27,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:31:27,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:31:27,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:31:27,927 INFO L87 Difference]: Start difference. First operand 4335 states and 5110 transitions. Second operand 3 states. [2020-07-21 01:31:28,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:31:28,719 INFO L93 Difference]: Finished difference Result 9236 states and 10895 transitions. [2020-07-21 01:31:28,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:31:28,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 347 [2020-07-21 01:31:28,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:31:28,774 INFO L225 Difference]: With dead ends: 9236 [2020-07-21 01:31:28,774 INFO L226 Difference]: Without dead ends: 4037 [2020-07-21 01:31:28,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 345 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 01:31:28,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4037 states. [2020-07-21 01:31:28,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4037 to 4037. [2020-07-21 01:31:28,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4037 states. [2020-07-21 01:31:28,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4037 states to 4037 states and 4700 transitions. [2020-07-21 01:31:28,895 INFO L78 Accepts]: Start accepts. Automaton has 4037 states and 4700 transitions. Word has length 347 [2020-07-21 01:31:28,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:31:28,896 INFO L479 AbstractCegarLoop]: Abstraction has 4037 states and 4700 transitions. [2020-07-21 01:31:28,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:31:28,897 INFO L276 IsEmpty]: Start isEmpty. Operand 4037 states and 4700 transitions. [2020-07-21 01:31:28,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2020-07-21 01:31:28,924 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:31:28,925 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-07-21 01:31:29,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:31:29,130 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:31:29,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:31:29,131 INFO L82 PathProgramCache]: Analyzing trace with hash -882444229, now seen corresponding path program 1 times [2020-07-21 01:31:29,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:31:29,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1957184595] [2020-07-21 01:31:29,132 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 01:31:29,333 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:31:29,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:31:29,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 01:31:29,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:31:29,377 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:31:29,378 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:31:29,379 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:31:29,380 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:31:29,381 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:31:29,381 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:31:29,382 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:31:29,383 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:31:53,747 WARN L193 SmtUtils]: Spent 24.32 s on a formula simplification. DAG size of input: 69 DAG size of output: 45 [2020-07-21 01:31:53,783 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:31:55,951 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2020-07-21 01:31:55,951 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:31:55,952 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:31:56,010 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:31:56,205 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 501 proven. 13 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-07-21 01:31:56,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:31:56,386 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:56,387 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:56,388 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:56,389 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:56,435 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:56,436 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:56,642 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:56,644 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:56,644 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:56,645 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:31:56,646 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:31:56,646 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:31:56,647 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:31:56,648 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:31:56,648 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:31:56,675 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:56,676 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:56,676 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:56,677 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:56,678 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:56,683 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:56,684 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:56,685 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:56,963 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 320 proven. 79 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2020-07-21 01:31:56,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1957184595] [2020-07-21 01:31:56,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:31:56,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2020-07-21 01:31:56,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210158291] [2020-07-21 01:31:56,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 01:31:56,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:31:56,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 01:31:56,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=101, Unknown=1, NotChecked=0, Total=132 [2020-07-21 01:31:56,965 INFO L87 Difference]: Start difference. First operand 4037 states and 4700 transitions. Second operand 12 states. [2020-07-21 01:32:39,683 WARN L193 SmtUtils]: Spent 40.39 s on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2020-07-21 01:32:47,520 WARN L193 SmtUtils]: Spent 4.09 s on a formula simplification. DAG size of input: 67 DAG size of output: 19 [2020-07-21 01:32:51,718 WARN L193 SmtUtils]: Spent 4.07 s on a formula simplification. DAG size of input: 65 DAG size of output: 18 [2020-07-21 01:32:55,950 WARN L193 SmtUtils]: Spent 4.06 s on a formula simplification. DAG size of input: 59 DAG size of output: 11 [2020-07-21 01:33:09,307 WARN L193 SmtUtils]: Spent 12.14 s on a formula simplification that was a NOOP. DAG size: 55 [2020-07-21 01:33:16,645 WARN L193 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 56 DAG size of output: 7 [2020-07-21 01:33:21,294 WARN L193 SmtUtils]: Spent 4.08 s on a formula simplification. DAG size of input: 60 DAG size of output: 13 [2020-07-21 01:33:25,490 WARN L193 SmtUtils]: Spent 4.08 s on a formula simplification. DAG size of input: 67 DAG size of output: 22 [2020-07-21 01:33:29,770 WARN L193 SmtUtils]: Spent 4.09 s on a formula simplification. DAG size of input: 61 DAG size of output: 15 [2020-07-21 01:33:57,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:33:57,841 INFO L93 Difference]: Finished difference Result 9115 states and 10783 transitions. [2020-07-21 01:33:57,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-07-21 01:33:57,843 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 420 [2020-07-21 01:33:57,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:33:57,861 INFO L225 Difference]: With dead ends: 9115 [2020-07-21 01:33:57,862 INFO L226 Difference]: Without dead ends: 5229 [2020-07-21 01:33:57,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 889 GetRequests, 846 SyntacticMatches, 7 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 115.0s TimeCoverageRelationStatistics Valid=317, Invalid=1085, Unknown=4, NotChecked=0, Total=1406 [2020-07-21 01:33:57,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5229 states. [2020-07-21 01:33:57,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5229 to 4055. [2020-07-21 01:33:57,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4055 states. [2020-07-21 01:33:57,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4055 states to 4055 states and 4724 transitions. [2020-07-21 01:33:57,979 INFO L78 Accepts]: Start accepts. Automaton has 4055 states and 4724 transitions. Word has length 420 [2020-07-21 01:33:57,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:33:57,980 INFO L479 AbstractCegarLoop]: Abstraction has 4055 states and 4724 transitions. [2020-07-21 01:33:57,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 01:33:57,980 INFO L276 IsEmpty]: Start isEmpty. Operand 4055 states and 4724 transitions. [2020-07-21 01:33:57,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2020-07-21 01:33:57,995 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:33:57,995 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-07-21 01:33:58,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:58,211 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:33:58,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:33:58,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1080073049, now seen corresponding path program 1 times [2020-07-21 01:33:58,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:33:58,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544738766] [2020-07-21 01:33:58,213 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:58,521 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:33:58,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:33:58,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:33:58,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:33:58,701 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 389 proven. 2 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2020-07-21 01:33:58,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:33:58,953 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 389 proven. 2 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2020-07-21 01:33:58,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544738766] [2020-07-21 01:33:58,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:33:58,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:33:58,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588934889] [2020-07-21 01:33:58,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:33:58,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:33:58,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:33:58,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:33:58,956 INFO L87 Difference]: Start difference. First operand 4055 states and 4724 transitions. Second operand 6 states. [2020-07-21 01:34:00,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:34:00,479 INFO L93 Difference]: Finished difference Result 8031 states and 9529 transitions. [2020-07-21 01:34:00,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:34:00,480 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 432 [2020-07-21 01:34:00,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:34:00,493 INFO L225 Difference]: With dead ends: 8031 [2020-07-21 01:34:00,494 INFO L226 Difference]: Without dead ends: 4127 [2020-07-21 01:34:00,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 869 GetRequests, 860 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:34:00,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4127 states. [2020-07-21 01:34:00,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4127 to 3614. [2020-07-21 01:34:00,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3614 states. [2020-07-21 01:34:00,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3614 states to 3614 states and 3997 transitions. [2020-07-21 01:34:00,579 INFO L78 Accepts]: Start accepts. Automaton has 3614 states and 3997 transitions. Word has length 432 [2020-07-21 01:34:00,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:34:00,580 INFO L479 AbstractCegarLoop]: Abstraction has 3614 states and 3997 transitions. [2020-07-21 01:34:00,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:34:00,580 INFO L276 IsEmpty]: Start isEmpty. Operand 3614 states and 3997 transitions. [2020-07-21 01:34:00,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2020-07-21 01:34:00,591 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:34:00,592 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-07-21 01:34:00,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:00,807 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:34:00,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:34:00,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1936628347, now seen corresponding path program 1 times [2020-07-21 01:34:00,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:34:00,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1563341951] [2020-07-21 01:34:00,808 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:01,006 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:34:01,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:34:01,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:34:01,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:34:01,089 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:34:01,089 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:34:01,805 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 42 proven. 151 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2020-07-21 01:34:01,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:34:01,929 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:34:01,930 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:01,930 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:34:01,931 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:01,967 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:02,051 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:34:02,054 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:34:02,238 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 178 proven. 15 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2020-07-21 01:34:02,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1563341951] [2020-07-21 01:34:02,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:34:02,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-07-21 01:34:02,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352229571] [2020-07-21 01:34:02,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 01:34:02,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:34:02,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 01:34:02,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:34:02,241 INFO L87 Difference]: Start difference. First operand 3614 states and 3997 transitions. Second operand 9 states. [2020-07-21 01:34:04,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:34:04,818 INFO L93 Difference]: Finished difference Result 7998 states and 8943 transitions. [2020-07-21 01:34:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:34:04,821 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 452 [2020-07-21 01:34:04,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:34:04,823 INFO L225 Difference]: With dead ends: 7998 [2020-07-21 01:34:04,823 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:34:04,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 905 GetRequests, 897 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:34:04,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:34:04,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:34:04,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:34:04,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:34:04,837 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 452 [2020-07-21 01:34:04,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:34:04,837 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:34:04,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 01:34:04,837 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:34:04,838 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:34:05,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:05,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:34:06,523 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 423 [2020-07-21 01:34:07,034 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 423 [2020-07-21 01:34:11,810 WARN L193 SmtUtils]: Spent 4.62 s on a formula simplification. DAG size of input: 446 DAG size of output: 80 [2020-07-21 01:34:15,258 WARN L193 SmtUtils]: Spent 3.39 s on a formula simplification. DAG size of input: 423 DAG size of output: 66 [2020-07-21 01:34:18,749 WARN L193 SmtUtils]: Spent 3.49 s on a formula simplification. DAG size of input: 423 DAG size of output: 66 [2020-07-21 01:34:18,753 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:34:18,753 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= |old(~a19~0)| ~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 01:34:18,753 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:34:18,754 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 01:34:18,754 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,754 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,754 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,754 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,754 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,754 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,754 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 01:34:18,755 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 01:34:18,755 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 01:34:18,755 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 01:34:18,755 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 01:34:18,755 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 01:34:18,755 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 01:34:18,755 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 01:34:18,755 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 01:34:18,755 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 01:34:18,756 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 01:34:18,756 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,756 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,756 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,756 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,756 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,756 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 01:34:18,756 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 01:34:18,757 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 01:34:18,757 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 01:34:18,757 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 01:34:18,757 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 01:34:18,757 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 01:34:18,757 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 01:34:18,757 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 01:34:18,757 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 01:34:18,757 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 01:34:18,758 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 01:34:18,758 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 01:34:18,758 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 118) no Hoare annotation was computed. [2020-07-21 01:34:18,758 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 01:34:18,758 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,758 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,758 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,759 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,759 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,759 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 01:34:18,759 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 01:34:18,759 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 01:34:18,759 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 01:34:18,759 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 01:34:18,759 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 01:34:18,759 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 01:34:18,760 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 01:34:18,760 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 01:34:18,760 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 01:34:18,760 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,760 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,760 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,760 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,760 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,761 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 01:34:18,761 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 01:34:18,761 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 01:34:18,761 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 01:34:18,761 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 01:34:18,761 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 01:34:18,761 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 01:34:18,761 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 01:34:18,761 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 01:34:18,762 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 01:34:18,762 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 01:34:18,762 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 01:34:18,762 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 01:34:18,762 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,762 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,762 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,762 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,763 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,763 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 01:34:18,763 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 01:34:18,763 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 01:34:18,763 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 01:34:18,763 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 01:34:18,763 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 01:34:18,763 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 01:34:18,763 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 01:34:18,764 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 01:34:18,764 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,764 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,764 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,764 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,764 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,764 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,764 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,764 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 01:34:18,765 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 01:34:18,765 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 01:34:18,765 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 01:34:18,765 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 01:34:18,765 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 01:34:18,765 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 01:34:18,765 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 01:34:18,765 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 01:34:18,765 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 01:34:18,766 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 01:34:18,766 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 01:34:18,766 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 01:34:18,766 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,766 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,766 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,766 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,766 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 01:34:18,766 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,767 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,767 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 01:34:18,767 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 01:34:18,767 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 01:34:18,767 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 01:34:18,767 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 01:34:18,767 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 01:34:18,767 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 01:34:18,768 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 01:34:18,768 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 01:34:18,768 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 01:34:18,768 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 01:34:18,768 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 01:34:18,768 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 01:34:18,768 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,768 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,768 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,768 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,769 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,769 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,769 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 01:34:18,769 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 01:34:18,769 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 01:34:18,769 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 01:34:18,769 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 01:34:18,769 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 01:34:18,769 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 01:34:18,770 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 01:34:18,770 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 01:34:18,770 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 01:34:18,770 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 01:34:18,770 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse7 (= ~a19~0 |old(~a19~0)|)) (.cse8 (= ~a1~0 |old(~a1~0)|))) (let ((.cse2 (not (<= |old(~a19~0)| 9))) (.cse6 (not (<= 9 |old(~a19~0)|))) (.cse4 (not (< 0 |old(~a10~0)|))) (.cse5 (and (not (< |old(~a10~0)| 2)) (not (< |old(~a1~0)| 39)))) (.cse0 (not (= 0 ~a12~0))) (.cse1 (not (= 14 ~a4~0))) (.cse3 (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) .cse7 .cse8))) (and (or (not (<= |old(~a10~0)| 0)) .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 (not (< 218 |old(~a1~0)|)) .cse6 .cse0 .cse1 (and (= ~a10~0 |old(~a10~0)|) .cse7 .cse8)) (or .cse0 .cse1 .cse2 .cse3 (not (<= 2 |old(~a10~0)|))) (or .cse5 .cse0 .cse6 .cse1 (not (< (div (+ |old(~a1~0)| (- 227431)) 5) 39)) .cse3 (not (<= |old(~a10~0)| 2))) (or .cse4 .cse5 .cse0 (forall ((v_~a1~0_508 Int)) (or (not (<= (+ (div v_~a1~0_508 5) 331501) |old(~a1~0)|)) (not (< 0 (+ v_~a1~0_508 13))) (not (= 0 (mod v_~a1~0_508 5))))) .cse1 .cse3) (or (not (<= |old(~a19~0)| 7)) .cse0 .cse1 .cse3)))) [2020-07-21 01:34:18,770 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 01:34:18,770 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 01:34:18,770 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 01:34:18,771 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,771 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,771 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,771 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,771 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,771 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,771 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 01:34:18,771 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 01:34:18,771 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 01:34:18,772 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 01:34:18,772 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 01:34:18,772 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 01:34:18,772 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 01:34:18,772 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 01:34:18,772 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 01:34:18,772 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 01:34:18,772 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 01:34:18,772 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 01:34:18,772 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 01:34:18,773 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,773 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,773 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,773 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,773 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,773 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,773 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 01:34:18,773 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 01:34:18,773 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 01:34:18,774 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 01:34:18,774 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 01:34:18,774 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 01:34:18,774 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 01:34:18,774 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 01:34:18,774 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 01:34:18,774 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 01:34:18,774 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 01:34:18,774 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 01:34:18,775 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,775 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,775 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,775 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,775 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,775 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:18,775 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 01:34:18,775 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 01:34:18,775 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 01:34:18,776 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 01:34:18,776 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 01:34:18,776 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 01:34:18,776 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 01:34:18,776 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 01:34:18,776 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 01:34:18,776 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 01:34:18,776 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 01:34:18,777 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 01:34:18,777 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:34:18,777 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= 14 ~a4~0) (<= ~a19~0 9) (<= 9 ~a19~0) (= 0 ~a12~0) (= 23 ~a1~0)) [2020-07-21 01:34:18,777 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:34:18,777 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:34:18,777 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 (= 0 ~a12~0)) (not (<= 9 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-21 01:34:18,777 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 01:34:18,778 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (or (< ~a10~0 2) (< ~a1~0 39))) (.cse1 (<= ~a19~0 9))) (or (and (= 8 ~a19~0) (exists ((v_~a1~0_508 Int)) (and (= 0 (mod v_~a1~0_508 5)) (<= (+ (div v_~a1~0_508 5) 331501) ~a1~0) (< 0 (+ v_~a1~0_508 13))))) (and (<= 10 ~a19~0) .cse0 (<= ~a10~0 2) (< (div (+ ~a1~0 (- 227431)) 5) 39)) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (and (<= 9 ~a19~0) (< 0 ~a10~0) .cse0 (< ~a10~0 3)) (not (= 0 ~a12~0)) (not (<= 9 |old(~a19~0)|)) (and (<= ~a10~0 0) .cse1) (not (= 14 ~a4~0)) (and .cse1 (<= 2 ~a10~0)) (not (<= |old(~a19~0)| 9)) (<= ~a19~0 7))) [2020-07-21 01:34:18,778 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 01:34:18,778 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 01:34:18,778 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (or (< ~a10~0 2) (< ~a1~0 39))) (.cse1 (<= ~a19~0 9))) (or (and (= 8 ~a19~0) (exists ((v_~a1~0_508 Int)) (and (= 0 (mod v_~a1~0_508 5)) (<= (+ (div v_~a1~0_508 5) 331501) ~a1~0) (< 0 (+ v_~a1~0_508 13))))) (and (<= 10 ~a19~0) .cse0 (<= ~a10~0 2) (< (div (+ ~a1~0 (- 227431)) 5) 39)) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (and (<= 9 ~a19~0) (< 0 ~a10~0) .cse0 (< ~a10~0 3)) (not (= 0 ~a12~0)) (not (<= 9 |old(~a19~0)|)) (and (<= ~a10~0 0) .cse1) (not (= 14 ~a4~0)) (and .cse1 (<= 2 ~a10~0)) (not (<= |old(~a19~0)| 9)) (<= ~a19~0 7))) [2020-07-21 01:34:18,778 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 01:34:18,790 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_508,QUANTIFIED] [2020-07-21 01:34:18,791 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_508,QUANTIFIED] [2020-07-21 01:34:18,791 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_508,QUANTIFIED] [2020-07-21 01:34:18,800 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_508,QUANTIFIED] [2020-07-21 01:34:18,800 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_508,QUANTIFIED] [2020-07-21 01:34:18,800 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_508,QUANTIFIED] [2020-07-21 01:34:18,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:34:18 BoogieIcfgContainer [2020-07-21 01:34:18,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:34:18,806 INFO L168 Benchmark]: Toolchain (without parser) took 252056.00 ms. Allocated memory was 143.7 MB in the beginning and 702.5 MB in the end (delta: 558.9 MB). Free memory was 99.6 MB in the beginning and 455.7 MB in the end (delta: -356.1 MB). Peak memory consumption was 556.3 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:18,806 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 01:34:18,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.34 ms. Allocated memory was 143.7 MB in the beginning and 203.9 MB in the end (delta: 60.3 MB). Free memory was 99.3 MB in the beginning and 170.6 MB in the end (delta: -71.3 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:18,807 INFO L168 Benchmark]: Boogie Preprocessor took 114.25 ms. Allocated memory is still 203.9 MB. Free memory was 170.6 MB in the beginning and 165.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:18,808 INFO L168 Benchmark]: RCFGBuilder took 1455.65 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 165.7 MB in the beginning and 181.4 MB in the end (delta: -15.8 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:18,809 INFO L168 Benchmark]: TraceAbstraction took 249775.49 ms. Allocated memory was 234.4 MB in the beginning and 702.5 MB in the end (delta: 468.2 MB). Free memory was 181.4 MB in the beginning and 455.7 MB in the end (delta: -274.2 MB). Peak memory consumption was 547.5 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:18,811 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 705.34 ms. Allocated memory was 143.7 MB in the beginning and 203.9 MB in the end (delta: 60.3 MB). Free memory was 99.3 MB in the beginning and 170.6 MB in the end (delta: -71.3 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.25 ms. Allocated memory is still 203.9 MB. Free memory was 170.6 MB in the beginning and 165.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1455.65 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 165.7 MB in the beginning and 181.4 MB in the end (delta: -15.8 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 249775.49 ms. Allocated memory was 234.4 MB in the beginning and 702.5 MB in the end (delta: 468.2 MB). Free memory was 181.4 MB in the beginning and 455.7 MB in the end (delta: -274.2 MB). Peak memory consumption was 547.5 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_508,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_508,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_508,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_508,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_508,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_508,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 118]: 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 01:34:18,817 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_508,QUANTIFIED] [2020-07-21 01:34:18,818 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_508,QUANTIFIED] [2020-07-21 01:34:18,818 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_508,QUANTIFIED] [2020-07-21 01:34:18,820 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_508,QUANTIFIED] [2020-07-21 01:34:18,820 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_508,QUANTIFIED] [2020-07-21 01:34:18,820 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_508,QUANTIFIED] Derived loop invariant: (((((((((((8 == a19 && (\exists v_~a1~0_508 : int :: (0 == v_~a1~0_508 % 5 && v_~a1~0_508 / 5 + 331501 <= a1) && 0 < v_~a1~0_508 + 13)) || (((10 <= a19 && (a10 < 2 || a1 < 39)) && a10 <= 2) && (a1 + -227431) / 5 < 39)) || !(\old(a10) <= 0)) || !(23 == \old(a1))) || (((9 <= a19 && 0 < a10) && (a10 < 2 || a1 < 39)) && a10 < 3)) || !(0 == a12)) || !(9 <= \old(a19))) || (a10 <= 0 && a19 <= 9)) || !(14 == a4)) || (a19 <= 9 && 2 <= a10)) || !(\old(a19) <= 9)) || a19 <= 7 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 235.9s, OverallIterations: 14, TraceHistogramMax: 5, AutomataDifference: 165.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 682 SDtfs, 8329 SDslu, 767 SDs, 0 SdLazy, 17745 SolverSat, 3114 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 47.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6279 GetRequests, 6079 SyntacticMatches, 18 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 938 ImplicationChecksByTransitivity, 167.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4335occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 4024 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 270 PreInvPairs, 350 NumberOfFragments, 511 HoareAnnotationTreeSize, 270 FomulaSimplifications, 164973 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 61445 FormulaSimplificationTreeSizeReductionInter, 11.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 64.3s InterpolantComputationTime, 3503 NumberOfCodeBlocks, 3034 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 5859 ConstructedInterpolants, 92 QuantifiedInterpolants, 9371623 SizeOfPredicates, 32 NumberOfNonLiveVariables, 5354 ConjunctsInSsa, 144 ConjunctsInUnsatCore, 22 InterpolantComputations, 5 PerfectInterpolantSequences, 5996/6701 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...