/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/Problem01_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:17:29,372 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:17:29,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:17:29,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:17:29,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:17:29,459 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 01:17:29,473 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:17:29,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:17:29,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:17:29,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:17:29,475 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:17:29,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:17:29,476 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:17:29,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:17:29,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:17:29,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:17:29,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:17:29,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:17:29,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:17:29,477 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:17:29,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:17:29,477 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:17:29,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:17:29,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:17:29,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:17:29,478 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:17:29,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:17:29,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:17:29,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:17:29,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:17:29,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:17:29,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:17:29,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:29,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:17:29,480 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:17:29,480 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 01:17:29,772 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:17:29,785 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:17:29,789 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:17:29,790 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:17:29,791 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:17:29,791 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label06.c [2020-07-21 01:17:29,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0efcf738f/60c62fd514c44d82b656c18ef02d9d7a/FLAG828f20545 [2020-07-21 01:17:30,498 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:17:30,499 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label06.c [2020-07-21 01:17:30,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0efcf738f/60c62fd514c44d82b656c18ef02d9d7a/FLAG828f20545 [2020-07-21 01:17:30,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0efcf738f/60c62fd514c44d82b656c18ef02d9d7a [2020-07-21 01:17:30,723 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:17:30,726 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:17:30,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:17:30,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:17:30,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:17:30,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:17:30" (1/1) ... [2020-07-21 01:17:30,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@790c65e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:17:30, skipping insertion in model container [2020-07-21 01:17:30,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:17:30" (1/1) ... [2020-07-21 01:17:30,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:17:30,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:17:31,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:17:31,222 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:17:31,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:17:31,468 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:17:31,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:17:31 WrapperNode [2020-07-21 01:17:31,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:17:31,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:17:31,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:17:31,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:17:31,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:17:31" (1/1) ... [2020-07-21 01:17:31,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:17:31" (1/1) ... [2020-07-21 01:17:31,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:17:31" (1/1) ... [2020-07-21 01:17:31,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:17:31" (1/1) ... [2020-07-21 01:17:31,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:17:31" (1/1) ... [2020-07-21 01:17:31,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:17:31" (1/1) ... [2020-07-21 01:17:31,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:17:31" (1/1) ... [2020-07-21 01:17:31,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:17:31,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:17:31,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:17:31,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:17:31,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:17:31" (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 01:17:31,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:17:31,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:17:31,652 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:17:31,652 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:17:31,652 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:17:31,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:17:31,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:17:31,654 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:17:31,654 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:17:31,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:17:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:17:32,887 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:17:32,888 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:17:32,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:17:32 BoogieIcfgContainer [2020-07-21 01:17:32,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:17:32,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:17:32,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:17:32,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:17:32,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:17:30" (1/3) ... [2020-07-21 01:17:32,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350657b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:17:32, skipping insertion in model container [2020-07-21 01:17:32,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:17:31" (2/3) ... [2020-07-21 01:17:32,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350657b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:17:32, skipping insertion in model container [2020-07-21 01:17:32,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:17:32" (3/3) ... [2020-07-21 01:17:32,904 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label06.c [2020-07-21 01:17:32,916 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:17:32,925 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:17:32,940 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:17:32,968 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:17:32,969 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:17:32,969 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:17:32,969 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:17:32,971 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:17:32,971 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:17:32,971 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:17:32,971 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:17:32,997 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 01:17:33,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-21 01:17:33,012 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:33,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:33,014 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:33,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:33,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1251834154, now seen corresponding path program 1 times [2020-07-21 01:17:33,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:33,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908792030] [2020-07-21 01:17:33,032 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 01:17:33,221 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:17:33,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:33,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-21 01:17:33,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:33,576 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2020-07-21 01:17:33,721 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2020-07-21 01:17:34,273 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 01:17:34,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:17:34,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [908792030] [2020-07-21 01:17:34,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:17:34,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 01:17:34,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610669978] [2020-07-21 01:17:34,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 01:17:34,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:34,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 01:17:34,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:17:34,311 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 11 states. [2020-07-21 01:17:36,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:36,111 INFO L93 Difference]: Finished difference Result 472 states and 791 transitions. [2020-07-21 01:17:36,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:17:36,114 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 130 [2020-07-21 01:17:36,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:36,128 INFO L225 Difference]: With dead ends: 472 [2020-07-21 01:17:36,128 INFO L226 Difference]: Without dead ends: 203 [2020-07-21 01:17:36,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-07-21 01:17:36,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-21 01:17:36,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-07-21 01:17:36,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-21 01:17:36,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 275 transitions. [2020-07-21 01:17:36,199 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 275 transitions. Word has length 130 [2020-07-21 01:17:36,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:36,200 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 275 transitions. [2020-07-21 01:17:36,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 01:17:36,200 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 275 transitions. [2020-07-21 01:17:36,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-21 01:17:36,204 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:36,205 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:36,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:36,421 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:36,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:36,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1999212815, now seen corresponding path program 1 times [2020-07-21 01:17:36,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:36,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [35111521] [2020-07-21 01:17:36,422 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 01:17:36,526 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:17:36,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:36,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-21 01:17:36,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:37,231 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:17:37,237 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:17:37,237 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:17:37,360 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:17:37,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:17:38,023 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-07-21 01:17:38,170 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 01:17:38,454 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 01:17:38,460 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 7 conjuncts [2020-07-21 01:17:38,462 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 6 conjuncts [2020-07-21 01:17:38,464 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:17:38,465 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:17:38,467 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:17:38,468 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:17:38,473 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:17:38,474 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:17:38,476 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:17:38,484 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:17:38,487 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:17:38,489 INFO L501 QuantifierPusher]: Distributing 14 disjuncts over 3 conjuncts [2020-07-21 01:17:38,491 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:17:38,492 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:17:38,493 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:17:38,498 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:17:38,499 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:17:38,501 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:17:38,502 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:17:38,504 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:17:38,505 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:17:38,512 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:17:38,513 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:17:38,516 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:17:38,517 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:17:39,133 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 37 [2020-07-21 01:17:39,141 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 8, 6, 7, 1] term [2020-07-21 01:17:39,142 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:17:39,212 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:17:39,214 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:39,294 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:39,320 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:39,491 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:17:39,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [35111521] [2020-07-21 01:17:39,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:17:39,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2020-07-21 01:17:39,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037253032] [2020-07-21 01:17:39,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-21 01:17:39,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:39,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-21 01:17:39,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-07-21 01:17:39,496 INFO L87 Difference]: Start difference. First operand 203 states and 275 transitions. Second operand 25 states. [2020-07-21 01:17:40,643 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-07-21 01:17:41,261 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 01:17:41,553 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-07-21 01:17:42,082 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-07-21 01:17:42,295 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-07-21 01:17:42,756 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:17:45,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:45,340 INFO L93 Difference]: Finished difference Result 588 states and 878 transitions. [2020-07-21 01:17:45,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-21 01:17:45,342 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 138 [2020-07-21 01:17:45,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:45,351 INFO L225 Difference]: With dead ends: 588 [2020-07-21 01:17:45,352 INFO L226 Difference]: Without dead ends: 451 [2020-07-21 01:17:45,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 248 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=551, Invalid=1611, Unknown=0, NotChecked=0, Total=2162 [2020-07-21 01:17:45,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-07-21 01:17:45,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 417. [2020-07-21 01:17:45,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-21 01:17:45,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 548 transitions. [2020-07-21 01:17:45,401 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 548 transitions. Word has length 138 [2020-07-21 01:17:45,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:45,402 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 548 transitions. [2020-07-21 01:17:45,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-21 01:17:45,402 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 548 transitions. [2020-07-21 01:17:45,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-21 01:17:45,408 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:45,408 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:45,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:45,620 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:45,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:45,621 INFO L82 PathProgramCache]: Analyzing trace with hash -188990609, now seen corresponding path program 1 times [2020-07-21 01:17:45,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:45,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625943189] [2020-07-21 01:17:45,622 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 01:17:45,777 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:17:45,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:45,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:17:45,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:45,843 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:17:45,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:17:45,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625943189] [2020-07-21 01:17:45,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:17:45,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:17:45,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572734962] [2020-07-21 01:17:45,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:17:45,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:45,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:17:45,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:17:45,846 INFO L87 Difference]: Start difference. First operand 417 states and 548 transitions. Second operand 3 states. [2020-07-21 01:17:46,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:46,400 INFO L93 Difference]: Finished difference Result 1042 states and 1433 transitions. [2020-07-21 01:17:46,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:17:46,401 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2020-07-21 01:17:46,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:46,415 INFO L225 Difference]: With dead ends: 1042 [2020-07-21 01:17:46,415 INFO L226 Difference]: Without dead ends: 691 [2020-07-21 01:17:46,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 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 01:17:46,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2020-07-21 01:17:46,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2020-07-21 01:17:46,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-07-21 01:17:46,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 897 transitions. [2020-07-21 01:17:46,472 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 897 transitions. Word has length 141 [2020-07-21 01:17:46,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:46,473 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 897 transitions. [2020-07-21 01:17:46,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:17:46,474 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 897 transitions. [2020-07-21 01:17:46,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-21 01:17:46,478 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:46,478 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:46,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:46,692 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:46,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:46,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1377706194, now seen corresponding path program 1 times [2020-07-21 01:17:46,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:46,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822133644] [2020-07-21 01:17:46,694 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 01:17:46,790 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:17:46,791 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:46,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:17:46,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:46,850 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:17:46,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:17:47,062 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 01:17:47,110 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:47,112 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 1] term [2020-07-21 01:17:47,113 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:17:47,114 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:17:47,114 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:47,115 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:47,221 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:17:47,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1822133644] [2020-07-21 01:17:47,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:17:47,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:17:47,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940501022] [2020-07-21 01:17:47,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:17:47,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:47,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:17:47,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:17:47,224 INFO L87 Difference]: Start difference. First operand 691 states and 897 transitions. Second operand 7 states. [2020-07-21 01:17:48,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:48,656 INFO L93 Difference]: Finished difference Result 1933 states and 2552 transitions. [2020-07-21 01:17:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:17:48,658 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2020-07-21 01:17:48,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:48,669 INFO L225 Difference]: With dead ends: 1933 [2020-07-21 01:17:48,670 INFO L226 Difference]: Without dead ends: 1169 [2020-07-21 01:17:48,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 308 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:17:48,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2020-07-21 01:17:48,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1106. [2020-07-21 01:17:48,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1106 states. [2020-07-21 01:17:48,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1302 transitions. [2020-07-21 01:17:48,734 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1302 transitions. Word has length 156 [2020-07-21 01:17:48,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:48,734 INFO L479 AbstractCegarLoop]: Abstraction has 1106 states and 1302 transitions. [2020-07-21 01:17:48,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:17:48,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1302 transitions. [2020-07-21 01:17:48,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-07-21 01:17:48,741 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:48,741 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:48,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:48,958 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:48,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:48,959 INFO L82 PathProgramCache]: Analyzing trace with hash -91407958, now seen corresponding path program 1 times [2020-07-21 01:17:48,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:48,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636634312] [2020-07-21 01:17:48,960 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 01:17:49,115 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:17:49,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:49,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:17:49,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:49,204 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:17:49,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:17:49,440 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-07-21 01:17:49,482 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:49,485 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:49,486 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:17:49,489 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:49,490 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:49,491 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:17:49,492 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:49,611 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:17:49,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636634312] [2020-07-21 01:17:49,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:17:49,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:17:49,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226449174] [2020-07-21 01:17:49,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:17:49,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:49,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:17:49,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:17:49,613 INFO L87 Difference]: Start difference. First operand 1106 states and 1302 transitions. Second operand 7 states. [2020-07-21 01:17:50,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:50,815 INFO L93 Difference]: Finished difference Result 3270 states and 3951 transitions. [2020-07-21 01:17:50,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:17:50,816 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 186 [2020-07-21 01:17:50,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:50,828 INFO L225 Difference]: With dead ends: 3270 [2020-07-21 01:17:50,828 INFO L226 Difference]: Without dead ends: 2093 [2020-07-21 01:17:50,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 367 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:17:50,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2020-07-21 01:17:50,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 2081. [2020-07-21 01:17:50,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2081 states. [2020-07-21 01:17:50,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 2360 transitions. [2020-07-21 01:17:50,893 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 2360 transitions. Word has length 186 [2020-07-21 01:17:50,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:50,893 INFO L479 AbstractCegarLoop]: Abstraction has 2081 states and 2360 transitions. [2020-07-21 01:17:50,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:17:50,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 2360 transitions. [2020-07-21 01:17:50,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-07-21 01:17:50,900 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:50,901 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:51,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:51,114 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:51,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:51,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1007418683, now seen corresponding path program 1 times [2020-07-21 01:17:51,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:51,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758572032] [2020-07-21 01:17:51,117 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 01:17:51,233 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:17:51,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:51,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-21 01:17:51,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:51,274 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 01:17:51,274 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:17:51,382 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 76 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 01:17:51,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:17:51,603 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 41 [2020-07-21 01:17:51,664 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:17:51,664 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:51,666 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:17:51,666 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:17:51,667 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:17:51,668 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:51,669 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:17:51,670 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:51,670 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:51,671 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:51,672 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:51,704 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:17:51,757 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:51,759 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:17:51,943 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 78 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 01:17:51,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758572032] [2020-07-21 01:17:51,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:17:51,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2020-07-21 01:17:51,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663957687] [2020-07-21 01:17:51,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:17:51,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:51,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:17:51,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:17:51,950 INFO L87 Difference]: Start difference. First operand 2081 states and 2360 transitions. Second operand 8 states. [2020-07-21 01:17:52,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:52,922 INFO L93 Difference]: Finished difference Result 5085 states and 5919 transitions. [2020-07-21 01:17:52,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:17:52,924 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 203 [2020-07-21 01:17:52,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:52,939 INFO L225 Difference]: With dead ends: 5085 [2020-07-21 01:17:52,940 INFO L226 Difference]: Without dead ends: 3070 [2020-07-21 01:17:52,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 399 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:17:52,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3070 states. [2020-07-21 01:17:53,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3070 to 2643. [2020-07-21 01:17:53,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2643 states. [2020-07-21 01:17:53,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 3024 transitions. [2020-07-21 01:17:53,059 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 3024 transitions. Word has length 203 [2020-07-21 01:17:53,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:53,061 INFO L479 AbstractCegarLoop]: Abstraction has 2643 states and 3024 transitions. [2020-07-21 01:17:53,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:17:53,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 3024 transitions. [2020-07-21 01:17:53,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-07-21 01:17:53,073 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:53,074 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-21 01:17:53,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:53,288 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:53,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:53,289 INFO L82 PathProgramCache]: Analyzing trace with hash -940468005, now seen corresponding path program 1 times [2020-07-21 01:17:53,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:53,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958403770] [2020-07-21 01:17:53,289 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 01:17:53,422 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:17:53,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:53,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:17:53,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:53,512 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 01:17:53,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:17:53,623 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 141 proven. 15 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 01:17:53,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958403770] [2020-07-21 01:17:53,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:17:53,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:17:53,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302384818] [2020-07-21 01:17:53,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:17:53,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:53,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:17:53,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:17:53,627 INFO L87 Difference]: Start difference. First operand 2643 states and 3024 transitions. Second operand 7 states. [2020-07-21 01:17:54,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:54,746 INFO L93 Difference]: Finished difference Result 5774 states and 6666 transitions. [2020-07-21 01:17:54,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 01:17:54,747 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-07-21 01:17:54,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:54,761 INFO L225 Difference]: With dead ends: 5774 [2020-07-21 01:17:54,761 INFO L226 Difference]: Without dead ends: 3197 [2020-07-21 01:17:54,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 471 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:17:54,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2020-07-21 01:17:54,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 2101. [2020-07-21 01:17:54,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2101 states. [2020-07-21 01:17:54,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2101 states to 2101 states and 2366 transitions. [2020-07-21 01:17:54,831 INFO L78 Accepts]: Start accepts. Automaton has 2101 states and 2366 transitions. Word has length 237 [2020-07-21 01:17:54,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:54,831 INFO L479 AbstractCegarLoop]: Abstraction has 2101 states and 2366 transitions. [2020-07-21 01:17:54,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:17:54,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2101 states and 2366 transitions. [2020-07-21 01:17:54,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-07-21 01:17:54,839 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:54,839 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:17:55,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:55,053 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:55,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:55,054 INFO L82 PathProgramCache]: Analyzing trace with hash -449944081, now seen corresponding path program 1 times [2020-07-21 01:17:55,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:55,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1653935981] [2020-07-21 01:17:55,055 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 01:17:55,212 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:17:55,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:55,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:17:55,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:55,238 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 01:17:55,238 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:17:55,303 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 01:17:55,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:17:55,507 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2020-07-21 01:17:55,563 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:17:55,563 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:17:55,564 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:17:55,565 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:55,566 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:55,566 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:55,567 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-07-21 01:17:55,568 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:55,569 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:17:55,569 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:55,570 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-07-21 01:17:55,570 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:55,570 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:55,571 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:17:55,572 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:17:55,572 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-07-21 01:17:55,572 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:55,573 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:17:55,573 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:17:55,606 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:17:55,699 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 01:17:55,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1653935981] [2020-07-21 01:17:55,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:17:55,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:17:55,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223394810] [2020-07-21 01:17:55,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:17:55,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:55,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:17:55,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:17:55,702 INFO L87 Difference]: Start difference. First operand 2101 states and 2366 transitions. Second operand 7 states. [2020-07-21 01:17:56,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:56,890 INFO L93 Difference]: Finished difference Result 5113 states and 5811 transitions. [2020-07-21 01:17:56,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:17:56,894 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 259 [2020-07-21 01:17:56,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:56,907 INFO L225 Difference]: With dead ends: 5113 [2020-07-21 01:17:56,907 INFO L226 Difference]: Without dead ends: 3078 [2020-07-21 01:17:56,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 516 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:17:56,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3078 states. [2020-07-21 01:17:56,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3078 to 3072. [2020-07-21 01:17:56,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3072 states. [2020-07-21 01:17:56,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 3442 transitions. [2020-07-21 01:17:56,973 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 3442 transitions. Word has length 259 [2020-07-21 01:17:56,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:56,974 INFO L479 AbstractCegarLoop]: Abstraction has 3072 states and 3442 transitions. [2020-07-21 01:17:56,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:17:56,974 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 3442 transitions. [2020-07-21 01:17:56,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-07-21 01:17:56,983 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:56,983 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:17:57,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:57,199 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:57,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:57,200 INFO L82 PathProgramCache]: Analyzing trace with hash -983432982, now seen corresponding path program 1 times [2020-07-21 01:17:57,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:57,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [378756788] [2020-07-21 01:17:57,202 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 01:17:57,358 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:17:57,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:57,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:17:57,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:57,414 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 01:17:57,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:17:57,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [378756788] [2020-07-21 01:17:57,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:17:57,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:17:57,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768145292] [2020-07-21 01:17:57,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:17:57,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:57,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:17:57,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:17:57,416 INFO L87 Difference]: Start difference. First operand 3072 states and 3442 transitions. Second operand 3 states. [2020-07-21 01:17:57,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:57,952 INFO L93 Difference]: Finished difference Result 5097 states and 5742 transitions. [2020-07-21 01:17:57,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:17:57,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 272 [2020-07-21 01:17:57,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:57,960 INFO L225 Difference]: With dead ends: 5097 [2020-07-21 01:17:57,961 INFO L226 Difference]: Without dead ends: 2091 [2020-07-21 01:17:57,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 270 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 01:17:57,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2020-07-21 01:17:58,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 1954. [2020-07-21 01:17:58,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2020-07-21 01:17:58,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2136 transitions. [2020-07-21 01:17:58,009 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2136 transitions. Word has length 272 [2020-07-21 01:17:58,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:58,010 INFO L479 AbstractCegarLoop]: Abstraction has 1954 states and 2136 transitions. [2020-07-21 01:17:58,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:17:58,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2136 transitions. [2020-07-21 01:17:58,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-07-21 01:17:58,018 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:17:58,018 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2020-07-21 01:17:58,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:58,233 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:17:58,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:17:58,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1412913811, now seen corresponding path program 1 times [2020-07-21 01:17:58,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:17:58,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556310493] [2020-07-21 01:17:58,235 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 01:17:58,475 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:17:58,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:17:58,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:17:58,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:17:58,564 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-07-21 01:17:58,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:17:58,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556310493] [2020-07-21 01:17:58,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:17:58,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:17:58,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299155901] [2020-07-21 01:17:58,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:17:58,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:17:58,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:17:58,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:17:58,567 INFO L87 Difference]: Start difference. First operand 1954 states and 2136 transitions. Second operand 3 states. [2020-07-21 01:17:59,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:17:59,089 INFO L93 Difference]: Finished difference Result 4249 states and 4663 transitions. [2020-07-21 01:17:59,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:17:59,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 292 [2020-07-21 01:17:59,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:17:59,091 INFO L225 Difference]: With dead ends: 4249 [2020-07-21 01:17:59,091 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:17:59,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 290 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 01:17:59,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:17:59,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:17:59,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:17:59,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:17:59,100 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 292 [2020-07-21 01:17:59,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:17:59,100 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:17:59,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:17:59,101 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:17:59,101 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:17:59,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:17:59,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:17:59,816 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 134 [2020-07-21 01:17:59,938 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 124 [2020-07-21 01:18:01,767 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 199 DAG size of output: 107 [2020-07-21 01:18:02,620 WARN L193 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 64 [2020-07-21 01:18:03,381 WARN L193 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 64 [2020-07-21 01:18:03,385 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:18:03,386 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (<= |old(~a16~0)| ~a16~0) (<= |old(~a8~0)| ~a8~0) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 01:18:03,386 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:18:03,386 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 01:18:03,386 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 01:18:03,386 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,386 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,387 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,387 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,387 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,387 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,387 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 01:18:03,387 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 01:18:03,388 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 01:18:03,388 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 01:18:03,388 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 01:18:03,388 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 01:18:03,388 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 01:18:03,388 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 01:18:03,388 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 01:18:03,388 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 01:18:03,389 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,389 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,389 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,389 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,389 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,389 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,389 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 01:18:03,389 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 01:18:03,389 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 01:18:03,389 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 01:18:03,390 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 01:18:03,390 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 01:18:03,390 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 01:18:03,390 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 01:18:03,390 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 01:18:03,390 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 01:18:03,390 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 01:18:03,391 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 548) no Hoare annotation was computed. [2020-07-21 01:18:03,391 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 01:18:03,391 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 01:18:03,391 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 01:18:03,391 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 01:18:03,391 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,391 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,391 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,392 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,392 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,393 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 01:18:03,393 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 01:18:03,393 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 01:18:03,393 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 01:18:03,393 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 01:18:03,393 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 01:18:03,393 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 01:18:03,393 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 01:18:03,395 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 01:18:03,395 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,395 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,395 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,395 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,396 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,397 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 01:18:03,397 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 01:18:03,398 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 01:18:03,398 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 01:18:03,398 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 01:18:03,398 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 01:18:03,398 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 01:18:03,398 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 01:18:03,398 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 01:18:03,398 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 01:18:03,398 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 01:18:03,398 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 01:18:03,398 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 01:18:03,398 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,399 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,399 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,399 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,399 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,399 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 01:18:03,399 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 01:18:03,399 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 01:18:03,399 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 01:18:03,399 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 01:18:03,399 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 01:18:03,399 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 01:18:03,399 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 01:18:03,399 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 01:18:03,400 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,400 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,400 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,400 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,400 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,400 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,400 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 01:18:03,400 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,401 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 01:18:03,401 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 01:18:03,401 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 01:18:03,401 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 01:18:03,401 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 01:18:03,401 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 01:18:03,401 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 01:18:03,401 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 01:18:03,401 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 01:18:03,401 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 01:18:03,401 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 01:18:03,401 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 01:18:03,402 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 01:18:03,402 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,402 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,402 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,402 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,402 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,402 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 01:18:03,402 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 01:18:03,402 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 01:18:03,402 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 01:18:03,402 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 01:18:03,402 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 01:18:03,403 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 01:18:03,403 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 01:18:03,403 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,403 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,403 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,403 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,403 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,403 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 01:18:03,403 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 01:18:03,403 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 01:18:03,403 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 01:18:03,404 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 01:18:03,404 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 01:18:03,404 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 01:18:03,404 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 01:18:03,404 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 01:18:03,404 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 01:18:03,404 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse28 (= 1 |old(~a7~0)|)) (.cse29 (= 1 |old(~a21~0)|))) (let ((.cse22 (<= ~a16~0 |old(~a16~0)|)) (.cse25 (<= |old(~a16~0)| ~a16~0)) (.cse1 (= ~a21~0 |old(~a21~0)|)) (.cse4 (not .cse29)) (.cse2 (not .cse28)) (.cse23 (= ~a7~0 |old(~a7~0)|)) (.cse24 (= ~a17~0 |old(~a17~0)|)) (.cse26 (<= |old(~a8~0)| ~a8~0)) (.cse27 (= 1 ~a21~0)) (.cse17 (= ~a20~0 |old(~a20~0)|))) (let ((.cse0 (= 1 ~a7~0)) (.cse12 (not (= 15 |old(~a8~0)|))) (.cse14 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 2 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|)))) (.cse15 (= 15 ~a8~0)) (.cse6 (not (<= |old(~a16~0)| 5))) (.cse7 (not (< 4 |old(~a16~0)|))) (.cse8 (and .cse23 .cse24 .cse26 (<= ~a16~0 5) .cse27 (< 4 ~a16~0) .cse17)) (.cse9 (not (<= |old(~a17~0)| 0))) (.cse3 (not (<= |old(~a16~0)| 4))) (.cse11 (and (or .cse28 .cse4) (or .cse2 .cse29))) (.cse19 (not (<= 15 |old(~a8~0)|))) (.cse13 (not (= 1 |old(~a17~0)|))) (.cse20 (and .cse22 .cse23 .cse24 .cse25 .cse26 .cse17 .cse1)) (.cse21 (not (<= 6 |old(~a16~0)|))) (.cse16 (not (= 1 |old(~a20~0)|))) (.cse18 (and .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse17)) (.cse5 (not (<= |old(~a7~0)| 0))) (.cse10 (not (= 8 ~a12~0)))) (and (or (and .cse0 .cse1 (<= ~a16~0 4)) .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (or .cse12 .cse5 .cse6 .cse7 (not (<= |old(~a20~0)| 0)) .cse13 .cse14 .cse4 .cse15 .cse10) (or .cse16 .cse2 (and .cse0 .cse17 .cse1) .cse4) (or .cse18 .cse5 .cse3 .cse9 .cse10 .cse11) (or .cse16 .cse12 .cse5 .cse6 .cse7 .cse13 .cse14 .cse4 .cse15 .cse10) (or .cse2 .cse6 .cse7 .cse8 .cse4 .cse9) (or .cse19 .cse5 .cse6 .cse7 .cse13 .cse8 .cse10 .cse11) (or .cse5 .cse20 .cse21 .cse9 .cse10) (or .cse19 .cse18 .cse5 .cse13 .cse3 .cse10 .cse11) (or (not (<= |old(~a21~0)| 0)) .cse20) (or .cse19 .cse5 .cse13 .cse20 .cse21 .cse10) (or .cse16 .cse18 .cse5 .cse4 .cse10))))) [2020-07-21 01:18:03,404 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 01:18:03,404 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,405 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,405 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,405 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,405 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 01:18:03,405 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,405 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,405 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 01:18:03,405 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 01:18:03,405 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 01:18:03,405 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 01:18:03,405 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 01:18:03,405 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 01:18:03,405 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 01:18:03,405 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 01:18:03,406 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 01:18:03,406 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 01:18:03,406 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 01:18:03,406 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 01:18:03,406 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,406 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,406 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,406 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,406 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,406 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 01:18:03,406 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,406 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 01:18:03,406 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 01:18:03,406 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 01:18:03,407 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 01:18:03,407 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 01:18:03,407 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 01:18:03,407 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 01:18:03,407 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 01:18:03,407 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 01:18:03,407 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 01:18:03,407 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 01:18:03,407 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 01:18:03,407 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 01:18:03,407 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 01:18:03,407 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,407 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,407 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,408 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,408 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,408 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:18:03,408 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 01:18:03,408 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 01:18:03,408 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 01:18:03,408 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 01:18:03,408 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 01:18:03,408 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 01:18:03,408 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 01:18:03,408 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 01:18:03,408 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 01:18:03,408 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 01:18:03,408 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:18:03,409 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (= 1 ~a21~0) (= 1 ~a20~0) (= 15 ~a8~0) (= 5 ~a16~0) (= 8 ~a12~0)) [2020-07-21 01:18:03,409 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:18:03,409 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:18:03,409 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= 1 ~a21~0) (= ~a20~0 |old(~a20~0)|) (= 15 ~a8~0) (= 5 ~a16~0)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0))) [2020-07-21 01:18:03,409 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 01:18:03,409 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse5 (<= 6 ~a16~0)) (.cse2 (= 1 ~a20~0)) (.cse7 (= 1 ~a7~0)) (.cse8 (<= ~a16~0 5)) (.cse9 (< 4 ~a16~0)) (.cse4 (<= ~a17~0 0)) (.cse3 (not (= 1 |old(~a7~0)|))) (.cse0 (<= ~a7~0 0)) (.cse10 (= 1 ~a17~0)) (.cse11 (<= 15 ~a8~0)) (.cse1 (= 1 ~a21~0)) (.cse12 (<= ~a16~0 4)) (.cse6 (= 8 ~a12~0))) (or (and .cse0 .cse1 .cse2) (<= ~a21~0 0) (and .cse3 .cse4 .cse5 .cse0 .cse6) (not (= 15 |old(~a8~0)|)) (and .cse7 .cse4 .cse8 .cse1) (not (<= |old(~a7~0)| 0)) (and .cse3 .cse4 .cse0 .cse8 .cse1 .cse9 .cse6) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (and .cse3 .cse5 .cse0 .cse10 .cse11 .cse6) (and .cse7 .cse1 .cse2) (and .cse7 .cse1 .cse12) (not (= 1 |old(~a20~0)|)) (and .cse3 .cse0 .cse10 .cse11 .cse8 .cse1 .cse9 .cse6) (not (<= |old(~a16~0)| 5)) (and .cse3 .cse4 .cse0 .cse1 .cse12 .cse6) (not (= 1 |old(~a21~0)|)) (not .cse6) (and .cse3 .cse0 .cse10 .cse11 .cse1 .cse12 .cse6))) [2020-07-21 01:18:03,409 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 01:18:03,410 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 01:18:03,410 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse5 (<= 6 ~a16~0)) (.cse2 (= 1 ~a20~0)) (.cse7 (= 1 ~a7~0)) (.cse8 (<= ~a16~0 5)) (.cse9 (< 4 ~a16~0)) (.cse4 (<= ~a17~0 0)) (.cse3 (not (= 1 |old(~a7~0)|))) (.cse0 (<= ~a7~0 0)) (.cse10 (= 1 ~a17~0)) (.cse11 (<= 15 ~a8~0)) (.cse1 (= 1 ~a21~0)) (.cse12 (<= ~a16~0 4)) (.cse6 (= 8 ~a12~0))) (or (and .cse0 .cse1 .cse2) (<= ~a21~0 0) (and .cse3 .cse4 .cse5 .cse0 .cse6) (not (= 15 |old(~a8~0)|)) (and .cse7 .cse4 .cse8 .cse1) (not (<= |old(~a7~0)| 0)) (and .cse3 .cse4 .cse0 .cse8 .cse1 .cse9 .cse6) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (and .cse3 .cse5 .cse0 .cse10 .cse11 .cse6) (and .cse7 .cse1 .cse2) (and .cse7 .cse1 .cse12) (not (= 1 |old(~a20~0)|)) (and .cse3 .cse0 .cse10 .cse11 .cse8 .cse1 .cse9 .cse6) (not (<= |old(~a16~0)| 5)) (and .cse3 .cse4 .cse0 .cse1 .cse12 .cse6) (not (= 1 |old(~a21~0)|)) (not .cse6) (and .cse3 .cse0 .cse10 .cse11 .cse1 .cse12 .cse6))) [2020-07-21 01:18:03,410 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 01:18:03,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:18:03 BoogieIcfgContainer [2020-07-21 01:18:03,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:18:03,442 INFO L168 Benchmark]: Toolchain (without parser) took 32717.11 ms. Allocated memory was 138.9 MB in the beginning and 596.1 MB in the end (delta: 457.2 MB). Free memory was 101.8 MB in the beginning and 494.9 MB in the end (delta: -393.1 MB). Peak memory consumption was 442.6 MB. Max. memory is 7.1 GB. [2020-07-21 01:18:03,442 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory is still 121.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 01:18:03,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.17 ms. Allocated memory was 138.9 MB in the beginning and 206.0 MB in the end (delta: 67.1 MB). Free memory was 101.8 MB in the beginning and 172.0 MB in the end (delta: -70.3 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:18:03,444 INFO L168 Benchmark]: Boogie Preprocessor took 100.56 ms. Allocated memory is still 206.0 MB. Free memory was 172.0 MB in the beginning and 166.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:18:03,445 INFO L168 Benchmark]: RCFGBuilder took 1324.42 ms. Allocated memory was 206.0 MB in the beginning and 239.6 MB in the end (delta: 33.6 MB). Free memory was 166.8 MB in the beginning and 181.7 MB in the end (delta: -14.9 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:18:03,446 INFO L168 Benchmark]: TraceAbstraction took 30543.93 ms. Allocated memory was 239.6 MB in the beginning and 596.1 MB in the end (delta: 356.5 MB). Free memory was 181.7 MB in the beginning and 494.9 MB in the end (delta: -313.1 MB). Peak memory consumption was 421.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:18:03,449 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory is still 121.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 742.17 ms. Allocated memory was 138.9 MB in the beginning and 206.0 MB in the end (delta: 67.1 MB). Free memory was 101.8 MB in the beginning and 172.0 MB in the end (delta: -70.3 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.56 ms. Allocated memory is still 206.0 MB. Free memory was 172.0 MB in the beginning and 166.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1324.42 ms. Allocated memory was 206.0 MB in the beginning and 239.6 MB in the end (delta: 33.6 MB). Free memory was 166.8 MB in the beginning and 181.7 MB in the end (delta: -14.9 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30543.93 ms. Allocated memory was 239.6 MB in the beginning and 596.1 MB in the end (delta: 356.5 MB). Free memory was 181.7 MB in the beginning and 494.9 MB in the end (delta: -313.1 MB). Peak memory consumption was 421.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 548]: 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: 583]: Loop Invariant Derived loop invariant: (((((((((((((((((((a7 <= 0 && 1 == a21) && 1 == a20) || a21 <= 0) || ((((!(1 == \old(a7)) && a17 <= 0) && 6 <= a16) && a7 <= 0) && 8 == a12)) || !(15 == \old(a8))) || (((1 == a7 && a17 <= 0) && a16 <= 5) && 1 == a21)) || !(\old(a7) <= 0)) || ((((((!(1 == \old(a7)) && a17 <= 0) && a7 <= 0) && a16 <= 5) && 1 == a21) && 4 < a16) && 8 == a12)) || !(4 < \old(a16))) || !(1 == \old(a17))) || (((((!(1 == \old(a7)) && 6 <= a16) && a7 <= 0) && 1 == a17) && 15 <= a8) && 8 == a12)) || ((1 == a7 && 1 == a21) && 1 == a20)) || ((1 == a7 && 1 == a21) && a16 <= 4)) || !(1 == \old(a20))) || (((((((!(1 == \old(a7)) && a7 <= 0) && 1 == a17) && 15 <= a8) && a16 <= 5) && 1 == a21) && 4 < a16) && 8 == a12)) || !(\old(a16) <= 5)) || (((((!(1 == \old(a7)) && a17 <= 0) && a7 <= 0) && 1 == a21) && a16 <= 4) && 8 == a12)) || !(1 == \old(a21))) || !(8 == a12)) || ((((((!(1 == \old(a7)) && a7 <= 0) && 1 == a17) && 15 <= a8) && 1 == a21) && a16 <= 4) && 8 == a12) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.3s, OverallIterations: 10, TraceHistogramMax: 6, AutomataDifference: 15.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 761 SDtfs, 4781 SDslu, 509 SDs, 0 SdLazy, 10424 SolverSat, 1203 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3246 GetRequests, 3128 SyntacticMatches, 9 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3072occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 1775 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 132 PreInvPairs, 172 NumberOfFragments, 1113 HoareAnnotationTreeSize, 132 FomulaSimplifications, 3306 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8511 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 2014 NumberOfCodeBlocks, 1426 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3177 ConstructedInterpolants, 0 QuantifiedInterpolants, 3438529 SizeOfPredicates, 65 NumberOfNonLiveVariables, 4404 ConjunctsInSsa, 184 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 1673/1725 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...