/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 23:00:58,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 23:00:58,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 23:00:58,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-21 23:00:58,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 23:00:58,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 23:00:58,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 23:00:58,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 23:00:58,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 23:00:58,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 23:00:58,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 23:00:58,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 23:00:58,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 23:00:58,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 23:00:58,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 23:00:58,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 23:00:58,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 23:00:58,651 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 23:00:58,685 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 23:00:58,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 23:00:58,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 23:00:58,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 23:00:58,690 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 23:00:58,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 23:00:58,692 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 23:00:58,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 23:00:58,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 23:00:58,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 23:00:58,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 23:00:58,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 23:00:58,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 23:00:58,693 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 23:00:58,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 23:00:58,699 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 23:00:58,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 23:00:58,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 23:00:58,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 23:00:58,700 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 23:00:58,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 23:00:58,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 23:00:58,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 23:00:58,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 23:00:58,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 23:00:58,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 23:00:58,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:00:58,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 23:00:58,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 23:00:58,701 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 23:00:59,000 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 23:00:59,013 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 23:00:59,016 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 23:00:59,017 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 23:00:59,018 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 23:00:59,019 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label53.c [2020-07-21 23:00:59,079 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1281388bc/ab098fec34094630b12d103561bd9373/FLAGf19547e26 [2020-07-21 23:00:59,582 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 23:00:59,583 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label53.c [2020-07-21 23:00:59,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1281388bc/ab098fec34094630b12d103561bd9373/FLAGf19547e26 [2020-07-21 23:00:59,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1281388bc/ab098fec34094630b12d103561bd9373 [2020-07-21 23:00:59,917 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 23:00:59,921 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 23:00:59,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 23:00:59,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 23:00:59,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 23:00:59,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:00:59" (1/1) ... [2020-07-21 23:00:59,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337a95a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:00:59, skipping insertion in model container [2020-07-21 23:00:59,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:00:59" (1/1) ... [2020-07-21 23:00:59,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 23:00:59,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 23:01:00,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 23:01:00,610 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 23:01:00,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 23:01:00,797 INFO L208 MainTranslator]: Completed translation [2020-07-21 23:01:00,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:00 WrapperNode [2020-07-21 23:01:00,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 23:01:00,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 23:01:00,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 23:01:00,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 23:01:00,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:00" (1/1) ... [2020-07-21 23:01:00,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:00" (1/1) ... [2020-07-21 23:01:00,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:00" (1/1) ... [2020-07-21 23:01:00,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:00" (1/1) ... [2020-07-21 23:01:00,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:00" (1/1) ... [2020-07-21 23:01:00,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:00" (1/1) ... [2020-07-21 23:01:00,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:00" (1/1) ... [2020-07-21 23:01:00,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 23:01:00,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 23:01:00,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 23:01:00,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 23:01:00,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:00" (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 23:01:00,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 23:01:00,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 23:01:00,976 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 23:01:00,976 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 23:01:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 23:01:00,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 23:01:00,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 23:01:00,978 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 23:01:00,978 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 23:01:00,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 23:01:00,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 23:01:02,325 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 23:01:02,326 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 23:01:02,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:01:02 BoogieIcfgContainer [2020-07-21 23:01:02,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 23:01:02,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 23:01:02,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 23:01:02,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 23:01:02,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:00:59" (1/3) ... [2020-07-21 23:01:02,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f89166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:01:02, skipping insertion in model container [2020-07-21 23:01:02,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:00" (2/3) ... [2020-07-21 23:01:02,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f89166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:01:02, skipping insertion in model container [2020-07-21 23:01:02,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:01:02" (3/3) ... [2020-07-21 23:01:02,342 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label53.c [2020-07-21 23:01:02,353 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 23:01:02,361 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 23:01:02,376 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 23:01:02,402 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 23:01:02,403 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 23:01:02,403 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 23:01:02,403 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 23:01:02,403 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 23:01:02,403 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 23:01:02,403 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 23:01:02,404 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 23:01:02,427 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 23:01:02,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-07-21 23:01:02,435 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:01:02,436 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] [2020-07-21 23:01:02,437 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:01:02,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:01:02,444 INFO L82 PathProgramCache]: Analyzing trace with hash 253834415, now seen corresponding path program 1 times [2020-07-21 23:01:02,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:01:02,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [858172961] [2020-07-21 23:01:02,452 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 23:01:02,612 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:01:02,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:01:02,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 23:01:02,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:01:02,747 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 23:01:02,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:01:02,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [858172961] [2020-07-21 23:01:02,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:01:02,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 23:01:02,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853855923] [2020-07-21 23:01:02,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 23:01:02,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:01:02,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 23:01:02,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 23:01:02,783 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 23:01:03,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:01:03,909 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 23:01:03,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 23:01:03,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-07-21 23:01:03,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:01:03,941 INFO L225 Difference]: With dead ends: 571 [2020-07-21 23:01:03,942 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 23:01:03,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 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 23:01:03,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 23:01:04,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 23:01:04,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 23:01:04,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-21 23:01:04,066 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 48 [2020-07-21 23:01:04,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:01:04,066 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-21 23:01:04,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 23:01:04,067 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-21 23:01:04,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-07-21 23:01:04,075 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:01:04,075 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:01:04,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:01:04,277 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:01:04,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:01:04,278 INFO L82 PathProgramCache]: Analyzing trace with hash 447309458, now seen corresponding path program 1 times [2020-07-21 23:01:04,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:01:04,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315384079] [2020-07-21 23:01:04,281 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 23:01:04,399 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:01:04,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:01:04,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 23:01:04,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:01:04,461 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 23:01:04,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:01:04,557 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 23:01:04,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315384079] [2020-07-21 23:01:04,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 23:01:04,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-21 23:01:04,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741903781] [2020-07-21 23:01:04,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 23:01:04,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:01:04,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 23:01:04,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 23:01:04,561 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 4 states. [2020-07-21 23:01:05,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:01:05,300 INFO L93 Difference]: Finished difference Result 586 states and 788 transitions. [2020-07-21 23:01:05,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 23:01:05,301 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2020-07-21 23:01:05,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:01:05,309 INFO L225 Difference]: With dead ends: 586 [2020-07-21 23:01:05,309 INFO L226 Difference]: Without dead ends: 584 [2020-07-21 23:01:05,310 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 228 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 23:01:05,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-07-21 23:01:05,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2020-07-21 23:01:05,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-07-21 23:01:05,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 786 transitions. [2020-07-21 23:01:05,352 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 786 transitions. Word has length 118 [2020-07-21 23:01:05,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:01:05,353 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 786 transitions. [2020-07-21 23:01:05,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 23:01:05,353 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 786 transitions. [2020-07-21 23:01:05,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-07-21 23:01:05,356 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:01:05,356 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:01:05,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:01:05,570 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:01:05,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:01:05,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1295505465, now seen corresponding path program 1 times [2020-07-21 23:01:05,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:01:05,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [776950244] [2020-07-21 23:01:05,573 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 23:01:05,644 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 23:01:05,644 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:01:05,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 23:01:05,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:01:05,736 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:01:05,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:01:05,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [776950244] [2020-07-21 23:01:05,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:01:05,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 23:01:05,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110105725] [2020-07-21 23:01:05,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 23:01:05,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:01:05,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 23:01:05,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 23:01:05,750 INFO L87 Difference]: Start difference. First operand 584 states and 786 transitions. Second operand 5 states. [2020-07-21 23:01:06,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:01:06,707 INFO L93 Difference]: Finished difference Result 1321 states and 1762 transitions. [2020-07-21 23:01:06,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 23:01:06,708 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-07-21 23:01:06,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:01:06,714 INFO L225 Difference]: With dead ends: 1321 [2020-07-21 23:01:06,714 INFO L226 Difference]: Without dead ends: 743 [2020-07-21 23:01:06,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 23:01:06,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2020-07-21 23:01:06,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 596. [2020-07-21 23:01:06,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-07-21 23:01:06,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 794 transitions. [2020-07-21 23:01:06,745 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 794 transitions. Word has length 121 [2020-07-21 23:01:06,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:01:06,745 INFO L479 AbstractCegarLoop]: Abstraction has 596 states and 794 transitions. [2020-07-21 23:01:06,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 23:01:06,746 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 794 transitions. [2020-07-21 23:01:06,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-21 23:01:06,749 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:01:06,750 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:01:06,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:01:06,965 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:01:06,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:01:06,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1735493107, now seen corresponding path program 1 times [2020-07-21 23:01:06,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:01:06,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276221110] [2020-07-21 23:01:06,968 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 23:01:07,063 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:01:07,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:01:07,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 23:01:07,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:01:07,121 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:01:07,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:01:07,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276221110] [2020-07-21 23:01:07,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:01:07,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 23:01:07,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076255788] [2020-07-21 23:01:07,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 23:01:07,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:01:07,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 23:01:07,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 23:01:07,143 INFO L87 Difference]: Start difference. First operand 596 states and 794 transitions. Second operand 3 states. [2020-07-21 23:01:07,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:01:07,848 INFO L93 Difference]: Finished difference Result 1337 states and 1916 transitions. [2020-07-21 23:01:07,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 23:01:07,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-07-21 23:01:07,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:01:07,857 INFO L225 Difference]: With dead ends: 1337 [2020-07-21 23:01:07,857 INFO L226 Difference]: Without dead ends: 890 [2020-07-21 23:01:07,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 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 23:01:07,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2020-07-21 23:01:07,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 888. [2020-07-21 23:01:07,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 888 states. [2020-07-21 23:01:07,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1202 transitions. [2020-07-21 23:01:07,889 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1202 transitions. Word has length 127 [2020-07-21 23:01:07,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:01:07,890 INFO L479 AbstractCegarLoop]: Abstraction has 888 states and 1202 transitions. [2020-07-21 23:01:07,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 23:01:07,890 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1202 transitions. [2020-07-21 23:01:07,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-07-21 23:01:07,894 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:01:07,894 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2020-07-21 23:01:08,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:01:08,107 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:01:08,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:01:08,108 INFO L82 PathProgramCache]: Analyzing trace with hash 210480566, now seen corresponding path program 1 times [2020-07-21 23:01:08,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:01:08,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357814842] [2020-07-21 23:01:08,109 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 23:01:08,220 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:01:08,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:01:08,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 23:01:08,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:01:08,314 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 83 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 23:01:08,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:01:08,466 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 23:01:08,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357814842] [2020-07-21 23:01:08,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 23:01:08,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2020-07-21 23:01:08,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733907448] [2020-07-21 23:01:08,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 23:01:08,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:01:08,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 23:01:08,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 23:01:08,470 INFO L87 Difference]: Start difference. First operand 888 states and 1202 transitions. Second operand 5 states. [2020-07-21 23:01:09,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:01:09,324 INFO L93 Difference]: Finished difference Result 1939 states and 2687 transitions. [2020-07-21 23:01:09,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 23:01:09,327 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2020-07-21 23:01:09,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:01:09,335 INFO L225 Difference]: With dead ends: 1939 [2020-07-21 23:01:09,336 INFO L226 Difference]: Without dead ends: 1200 [2020-07-21 23:01:09,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 372 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-21 23:01:09,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2020-07-21 23:01:09,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1190. [2020-07-21 23:01:09,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1190 states. [2020-07-21 23:01:09,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1474 transitions. [2020-07-21 23:01:09,393 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1474 transitions. Word has length 191 [2020-07-21 23:01:09,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:01:09,394 INFO L479 AbstractCegarLoop]: Abstraction has 1190 states and 1474 transitions. [2020-07-21 23:01:09,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 23:01:09,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1474 transitions. [2020-07-21 23:01:09,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-07-21 23:01:09,422 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:01:09,422 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2020-07-21 23:01:09,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:01:09,623 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:01:09,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:01:09,624 INFO L82 PathProgramCache]: Analyzing trace with hash 16531789, now seen corresponding path program 1 times [2020-07-21 23:01:09,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:01:09,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807957406] [2020-07-21 23:01:09,625 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 23:01:09,736 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:01:09,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:01:09,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 23:01:09,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:01:09,791 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 150 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:01:09,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:01:09,901 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 150 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:01:09,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [807957406] [2020-07-21 23:01:09,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 23:01:09,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 23:01:09,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829716971] [2020-07-21 23:01:09,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 23:01:09,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:01:09,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 23:01:09,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 23:01:09,905 INFO L87 Difference]: Start difference. First operand 1190 states and 1474 transitions. Second operand 8 states. [2020-07-21 23:01:11,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:01:11,215 INFO L93 Difference]: Finished difference Result 2841 states and 3740 transitions. [2020-07-21 23:01:11,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 23:01:11,216 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 208 [2020-07-21 23:01:11,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:01:11,227 INFO L225 Difference]: With dead ends: 2841 [2020-07-21 23:01:11,227 INFO L226 Difference]: Without dead ends: 1800 [2020-07-21 23:01:11,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 23:01:11,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2020-07-21 23:01:11,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1645. [2020-07-21 23:01:11,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1645 states. [2020-07-21 23:01:11,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2115 transitions. [2020-07-21 23:01:11,312 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2115 transitions. Word has length 208 [2020-07-21 23:01:11,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:01:11,312 INFO L479 AbstractCegarLoop]: Abstraction has 1645 states and 2115 transitions. [2020-07-21 23:01:11,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 23:01:11,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2115 transitions. [2020-07-21 23:01:11,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-07-21 23:01:11,320 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:01:11,320 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2020-07-21 23:01:11,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:01:11,526 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:01:11,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:01:11,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1796385774, now seen corresponding path program 1 times [2020-07-21 23:01:11,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:01:11,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1724011749] [2020-07-21 23:01:11,528 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 23:01:11,658 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:01:11,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:01:11,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 23:01:11,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:01:11,763 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 150 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:01:11,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:01:11,930 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 150 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:01:11,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1724011749] [2020-07-21 23:01:11,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 23:01:11,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 23:01:11,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564031983] [2020-07-21 23:01:11,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 23:01:11,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:01:11,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 23:01:11,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 23:01:11,933 INFO L87 Difference]: Start difference. First operand 1645 states and 2115 transitions. Second operand 6 states. [2020-07-21 23:01:13,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:01:13,036 INFO L93 Difference]: Finished difference Result 3175 states and 4193 transitions. [2020-07-21 23:01:13,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 23:01:13,037 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 259 [2020-07-21 23:01:13,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:01:13,048 INFO L225 Difference]: With dead ends: 3175 [2020-07-21 23:01:13,048 INFO L226 Difference]: Without dead ends: 1679 [2020-07-21 23:01:13,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 514 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 23:01:13,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2020-07-21 23:01:13,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1504. [2020-07-21 23:01:13,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1504 states. [2020-07-21 23:01:13,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 1777 transitions. [2020-07-21 23:01:13,098 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 1777 transitions. Word has length 259 [2020-07-21 23:01:13,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:01:13,099 INFO L479 AbstractCegarLoop]: Abstraction has 1504 states and 1777 transitions. [2020-07-21 23:01:13,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 23:01:13,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 1777 transitions. [2020-07-21 23:01:13,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-07-21 23:01:13,105 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:01:13,105 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 23:01:13,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:01:13,320 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:01:13,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:01:13,320 INFO L82 PathProgramCache]: Analyzing trace with hash 2020149331, now seen corresponding path program 1 times [2020-07-21 23:01:13,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:01:13,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623951570] [2020-07-21 23:01:13,321 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 23:01:13,413 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 23:01:13,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:01:13,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 26 conjunts are in the unsatisfiable core [2020-07-21 23:01:13,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:01:13,459 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 23:01:13,460 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 23:01:31,952 WARN L193 SmtUtils]: Spent 18.45 s on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 23:01:32,006 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 23:01:32,274 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-07-21 23:01:32,274 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 23:01:32,276 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 23:01:32,277 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 23:01:32,777 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 120 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 23:01:32,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:01:32,885 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 23:01:33,239 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 23:01:33,241 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:01:33,242 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 23:01:33,243 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 23:01:33,245 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:01:39,405 WARN L193 SmtUtils]: Spent 6.08 s on a formula simplification. DAG size of input: 37 DAG size of output: 20 [2020-07-21 23:01:39,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623951570] [2020-07-21 23:01:39,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 23:01:39,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-21 23:01:39,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444722353] [2020-07-21 23:01:39,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 23:01:39,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:01:39,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 23:01:39,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-07-21 23:01:39,412 INFO L87 Difference]: Start difference. First operand 1504 states and 1777 transitions. Second operand 9 states. [2020-07-21 23:01:44,770 WARN L193 SmtUtils]: Spent 4.71 s on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2020-07-21 23:02:39,834 WARN L193 SmtUtils]: Spent 47.82 s on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2020-07-21 23:02:41,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:02:41,208 INFO L93 Difference]: Finished difference Result 3982 states and 4967 transitions. [2020-07-21 23:02:41,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 23:02:41,210 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 268 [2020-07-21 23:02:41,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:02:41,228 INFO L225 Difference]: With dead ends: 3982 [2020-07-21 23:02:41,228 INFO L226 Difference]: Without dead ends: 2600 [2020-07-21 23:02:41,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 439 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 78.1s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-07-21 23:02:41,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2600 states. [2020-07-21 23:02:41,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2600 to 2521. [2020-07-21 23:02:41,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2521 states. [2020-07-21 23:02:41,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 3059 transitions. [2020-07-21 23:02:41,328 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 3059 transitions. Word has length 268 [2020-07-21 23:02:41,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:02:41,328 INFO L479 AbstractCegarLoop]: Abstraction has 2521 states and 3059 transitions. [2020-07-21 23:02:41,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 23:02:41,329 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 3059 transitions. [2020-07-21 23:02:41,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-07-21 23:02:41,338 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:02:41,339 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 23:02:41,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:02:41,555 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:02:41,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:02:41,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1994852443, now seen corresponding path program 1 times [2020-07-21 23:02:41,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:02:41,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1233234763] [2020-07-21 23:02:41,557 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 23:02:41,705 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:02:41,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:02:41,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 23:02:41,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:02:41,808 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-21 23:02:41,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:02:41,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1233234763] [2020-07-21 23:02:41,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:02:41,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 23:02:41,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146175113] [2020-07-21 23:02:41,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 23:02:41,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:02:41,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 23:02:41,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 23:02:41,810 INFO L87 Difference]: Start difference. First operand 2521 states and 3059 transitions. Second operand 3 states. [2020-07-21 23:02:43,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:02:43,019 INFO L93 Difference]: Finished difference Result 4893 states and 5970 transitions. [2020-07-21 23:02:43,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 23:02:43,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 304 [2020-07-21 23:02:43,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:02:43,041 INFO L225 Difference]: With dead ends: 4893 [2020-07-21 23:02:43,042 INFO L226 Difference]: Without dead ends: 2521 [2020-07-21 23:02:43,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 302 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 23:02:43,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2521 states. [2020-07-21 23:02:43,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2521 to 2084. [2020-07-21 23:02:43,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2084 states. [2020-07-21 23:02:43,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 2456 transitions. [2020-07-21 23:02:43,136 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 2456 transitions. Word has length 304 [2020-07-21 23:02:43,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:02:43,137 INFO L479 AbstractCegarLoop]: Abstraction has 2084 states and 2456 transitions. [2020-07-21 23:02:43,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 23:02:43,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 2456 transitions. [2020-07-21 23:02:43,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-07-21 23:02:43,148 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:02:43,148 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 23:02:43,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:02:43,364 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:02:43,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:02:43,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1344701585, now seen corresponding path program 1 times [2020-07-21 23:02:43,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:02:43,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342288276] [2020-07-21 23:02:43,365 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 23:02:43,498 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 23:02:43,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:02:43,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-21 23:02:43,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:02:43,548 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 23:02:43,549 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:02:43,550 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:02:43,552 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 23:02:43,553 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:02:43,555 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:02:43,555 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 23:02:43,560 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:02:55,994 WARN L193 SmtUtils]: Spent 12.36 s on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2020-07-21 23:02:56,044 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 23:02:56,186 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 23:02:56,186 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 23:02:56,187 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 23:02:56,225 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 23:02:56,385 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 348 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-07-21 23:02:56,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:02:56,560 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:02:56,562 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:02:56,563 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:02:56,564 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:02:56,604 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:02:56,606 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:02:56,808 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:02:56,810 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:02:56,811 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:02:56,812 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:02:56,813 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:02:56,814 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:02:56,815 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:02:56,817 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:02:56,818 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:02:56,819 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:02:56,820 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:02:56,820 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:02:56,821 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:02:56,822 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:02:56,824 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 23:02:56,825 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:02:56,826 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 23:02:56,827 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 23:02:56,828 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:02:56,829 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:02:56,830 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:02:56,831 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:02:56,832 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:02:56,833 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:02:56,834 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:02:56,835 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:02:56,837 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:02:56,838 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:02:56,838 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:02:56,839 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:02:56,840 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:02:56,841 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:02:56,842 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:02:56,843 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:02:57,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342288276] [2020-07-21 23:02:57,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 23:02:57,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-21 23:02:57,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217858153] [2020-07-21 23:02:57,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 23:02:57,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:02:57,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 23:02:57,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-21 23:02:57,095 INFO L87 Difference]: Start difference. First operand 2084 states and 2456 transitions. Second operand 8 states. [2020-07-21 23:02:59,026 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2020-07-21 23:05:46,839 WARN L193 SmtUtils]: Spent 36.13 s on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-07-21 23:06:24,528 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2020-07-21 23:06:48,919 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 46 DAG size of output: 32 [2020-07-21 23:07:22,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:07:22,101 INFO L93 Difference]: Finished difference Result 4774 states and 5756 transitions. [2020-07-21 23:07:22,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-21 23:07:22,108 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 359 [2020-07-21 23:07:22,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:07:22,119 INFO L225 Difference]: With dead ends: 4774 [2020-07-21 23:07:22,120 INFO L226 Difference]: Without dead ends: 2839 [2020-07-21 23:07:22,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 587 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 54.1s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2020-07-21 23:07:22,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2839 states. [2020-07-21 23:07:22,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2839 to 2678. [2020-07-21 23:07:22,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2678 states. [2020-07-21 23:07:22,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2678 states to 2678 states and 3114 transitions. [2020-07-21 23:07:22,194 INFO L78 Accepts]: Start accepts. Automaton has 2678 states and 3114 transitions. Word has length 359 [2020-07-21 23:07:22,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:07:22,194 INFO L479 AbstractCegarLoop]: Abstraction has 2678 states and 3114 transitions. [2020-07-21 23:07:22,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 23:07:22,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2678 states and 3114 transitions. [2020-07-21 23:07:22,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-07-21 23:07:22,205 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:07:22,206 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 23:07:22,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:07:22,422 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:07:22,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:07:22,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1554197730, now seen corresponding path program 1 times [2020-07-21 23:07:22,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:07:22,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040482551] [2020-07-21 23:07:22,424 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:07:22,672 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:07:22,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:07:22,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 23:07:22,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:07:22,808 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-07-21 23:07:22,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:07:22,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040482551] [2020-07-21 23:07:22,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:07:22,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 23:07:22,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446023018] [2020-07-21 23:07:22,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 23:07:22,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:07:22,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 23:07:22,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 23:07:22,810 INFO L87 Difference]: Start difference. First operand 2678 states and 3114 transitions. Second operand 3 states. [2020-07-21 23:07:25,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:07:25,185 INFO L93 Difference]: Finished difference Result 5493 states and 6402 transitions. [2020-07-21 23:07:25,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 23:07:25,193 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 378 [2020-07-21 23:07:25,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:07:25,194 INFO L225 Difference]: With dead ends: 5493 [2020-07-21 23:07:25,194 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 23:07:25,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 376 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 23:07:25,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 23:07:25,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 23:07:25,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 23:07:25,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 23:07:25,205 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 378 [2020-07-21 23:07:25,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:07:25,205 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 23:07:25,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 23:07:25,205 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 23:07:25,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 23:07:25,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:07:25,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 23:07:26,011 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 125 [2020-07-21 23:07:26,126 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 125 [2020-07-21 23:07:26,447 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 30 [2020-07-21 23:07:28,683 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 184 DAG size of output: 54 [2020-07-21 23:07:28,841 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 18 [2020-07-21 23:07:29,823 WARN L193 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 37 [2020-07-21 23:07:30,801 WARN L193 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 37 [2020-07-21 23:07:30,806 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 23:07:30,806 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (or (<= 10 |old(~a19~0)|) (< ~a19~0 10)) (<= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|) (or (<= 9 ~a19~0) (< |old(~a19~0)| 9))) [2020-07-21 23:07:30,806 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 23:07:30,806 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 23:07:30,806 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,807 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,807 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,807 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,807 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,807 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,807 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 23:07:30,807 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 23:07:30,807 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 23:07:30,808 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 23:07:30,808 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 23:07:30,808 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 23:07:30,808 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 23:07:30,808 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 23:07:30,808 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 23:07:30,808 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 23:07:30,809 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 23:07:30,809 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,809 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,809 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,809 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,809 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,809 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 23:07:30,809 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 23:07:30,809 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 23:07:30,810 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 23:07:30,810 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 23:07:30,810 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 23:07:30,810 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 23:07:30,810 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 23:07:30,810 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 23:07:30,810 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 23:07:30,810 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 23:07:30,810 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 23:07:30,810 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 23:07:30,811 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 130) no Hoare annotation was computed. [2020-07-21 23:07:30,811 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 23:07:30,811 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,811 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,811 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,811 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,811 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,812 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 23:07:30,812 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 23:07:30,812 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 23:07:30,812 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 23:07:30,812 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 23:07:30,812 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 23:07:30,812 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 23:07:30,812 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 23:07:30,813 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 23:07:30,813 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 23:07:30,813 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,813 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,813 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,813 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,813 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,813 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 23:07:30,813 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 23:07:30,814 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 23:07:30,814 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 23:07:30,814 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 23:07:30,814 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 23:07:30,814 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 23:07:30,814 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 23:07:30,814 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 23:07:30,814 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 23:07:30,814 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 23:07:30,815 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 23:07:30,815 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 23:07:30,815 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,815 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,815 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,815 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,815 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,815 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 23:07:30,816 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 23:07:30,816 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 23:07:30,816 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 23:07:30,816 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 23:07:30,816 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 23:07:30,816 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 23:07:30,816 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 23:07:30,816 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 23:07:30,817 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,817 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,817 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,817 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,817 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,817 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,817 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,817 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 23:07:30,818 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 23:07:30,818 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 23:07:30,818 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 23:07:30,818 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 23:07:30,818 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 23:07:30,818 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 23:07:30,818 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 23:07:30,818 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 23:07:30,818 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 23:07:30,819 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 23:07:30,819 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 23:07:30,819 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 23:07:30,819 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,819 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,819 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,819 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,819 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 23:07:30,820 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,820 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,820 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 23:07:30,820 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 23:07:30,820 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 23:07:30,820 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 23:07:30,820 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 23:07:30,821 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 23:07:30,821 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 23:07:30,821 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 23:07:30,821 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 23:07:30,821 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 23:07:30,821 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 23:07:30,821 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 23:07:30,821 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 23:07:30,821 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,821 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,821 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,822 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,822 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,822 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,822 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 23:07:30,822 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 23:07:30,822 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 23:07:30,822 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 23:07:30,822 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 23:07:30,822 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 23:07:30,822 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 23:07:30,822 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 23:07:30,822 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 23:07:30,822 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 23:07:30,823 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 23:07:30,823 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse5 (<= |old(~a10~0)| ~a10~0)) (.cse0 (= ~a19~0 |old(~a19~0)|)) (.cse1 (= ~a1~0 |old(~a1~0)|))) (let ((.cse2 (not (= 0 ~a12~0))) (.cse3 (not (= 14 ~a4~0))) (.cse4 (not (<= |old(~a19~0)| 9))) (.cse6 (and (<= ~a10~0 |old(~a10~0)|) .cse5 .cse0 .cse1))) (and (or (and (<= ~a10~0 2) .cse0 (<= 2 ~a10~0) .cse1) .cse2 .cse3 .cse4 (not (<= 2 |old(~a10~0)|)) (not (<= |old(~a10~0)| 2))) (or .cse2 (not (<= 9 |old(~a19~0)|)) (and .cse5 .cse0 (< ~a10~0 4) .cse1) .cse3 (not (< |old(~a10~0)| 4)) .cse4) (or (not (<= |old(~a19~0)| 6)) .cse2 .cse3 .cse6) (or .cse2 .cse3 .cse6 (not (<= |old(~a10~0)| 1))) (or (not (<= 4 |old(~a10~0)|)) .cse2 .cse3 .cse4 .cse6)))) [2020-07-21 23:07:30,823 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 23:07:30,823 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 23:07:30,823 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 23:07:30,823 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,823 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,823 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,823 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,823 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,823 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,824 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 23:07:30,824 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 23:07:30,824 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 23:07:30,824 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 23:07:30,824 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 23:07:30,824 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 23:07:30,824 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 23:07:30,824 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 23:07:30,824 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 23:07:30,824 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 23:07:30,824 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 23:07:30,824 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 23:07:30,824 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 23:07:30,825 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,825 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,825 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,825 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,825 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,825 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,825 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 23:07:30,825 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 23:07:30,825 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 23:07:30,825 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 23:07:30,825 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 23:07:30,825 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 23:07:30,825 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 23:07:30,825 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 23:07:30,826 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 23:07:30,826 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 23:07:30,826 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 23:07:30,826 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 23:07:30,826 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,826 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,826 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,826 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,826 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,826 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:07:30,826 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 23:07:30,826 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 23:07:30,826 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 23:07:30,826 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 23:07:30,827 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 23:07:30,827 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 23:07:30,827 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 23:07:30,827 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 23:07:30,827 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 23:07:30,827 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 23:07:30,827 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 23:07:30,827 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 23:07:30,827 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 23:07:30,827 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= 14 ~a4~0) (<= ~a19~0 9) (<= 9 ~a19~0) (= 0 ~a12~0) (= 23 ~a1~0)) [2020-07-21 23:07:30,827 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 23:07:30,828 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 23:07:30,828 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (= 0 ~a12~0)) (not (<= 9 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-21 23:07:30,828 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 23:07:30,828 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (<= ~a10~0 1) (and .cse0 (<= 9 ~a19~0)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (and .cse0 (<= 4 ~a10~0)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (and .cse0 (<= ~a10~0 2)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)))) [2020-07-21 23:07:30,828 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 23:07:30,828 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 23:07:30,829 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (<= ~a10~0 1) (and .cse0 (<= 9 ~a19~0)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (and .cse0 (<= 4 ~a10~0)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (and .cse0 (<= ~a10~0 2)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)))) [2020-07-21 23:07:30,829 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 23:07:30,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:07:30 BoogieIcfgContainer [2020-07-21 23:07:30,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 23:07:30,853 INFO L168 Benchmark]: Toolchain (without parser) took 390934.47 ms. Allocated memory was 143.7 MB in the beginning and 437.8 MB in the end (delta: 294.1 MB). Free memory was 99.6 MB in the beginning and 206.2 MB in the end (delta: -106.6 MB). Peak memory consumption was 339.5 MB. Max. memory is 7.1 GB. [2020-07-21 23:07:30,854 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 119.9 MB in the beginning and 119.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 23:07:30,855 INFO L168 Benchmark]: CACSL2BoogieTranslator took 876.55 ms. Allocated memory was 143.7 MB in the beginning and 203.4 MB in the end (delta: 59.8 MB). Free memory was 99.2 MB in the beginning and 169.1 MB in the end (delta: -69.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-07-21 23:07:30,856 INFO L168 Benchmark]: Boogie Preprocessor took 99.25 ms. Allocated memory is still 203.4 MB. Free memory was 169.1 MB in the beginning and 164.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-21 23:07:30,857 INFO L168 Benchmark]: RCFGBuilder took 1434.27 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 164.6 MB in the beginning and 180.2 MB in the end (delta: -15.6 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. [2020-07-21 23:07:30,859 INFO L168 Benchmark]: TraceAbstraction took 388518.23 ms. Allocated memory was 233.3 MB in the beginning and 437.8 MB in the end (delta: 204.5 MB). Free memory was 180.2 MB in the beginning and 206.2 MB in the end (delta: -26.0 MB). Peak memory consumption was 330.5 MB. Max. memory is 7.1 GB. [2020-07-21 23:07:30,865 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 119.9 MB in the beginning and 119.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 876.55 ms. Allocated memory was 143.7 MB in the beginning and 203.4 MB in the end (delta: 59.8 MB). Free memory was 99.2 MB in the beginning and 169.1 MB in the end (delta: -69.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.25 ms. Allocated memory is still 203.4 MB. Free memory was 169.1 MB in the beginning and 164.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1434.27 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 164.6 MB in the beginning and 180.2 MB in the end (delta: -15.6 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 388518.23 ms. Allocated memory was 233.3 MB in the beginning and 437.8 MB in the end (delta: 204.5 MB). Free memory was 180.2 MB in the beginning and 206.2 MB in the end (delta: -26.0 MB). Peak memory consumption was 330.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 130]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((((((((a10 <= 1 || (a19 <= 9 && 9 <= a19)) || a19 <= 6) || !(\old(a10) <= 0)) || !(23 == \old(a1))) || (a19 <= 9 && 4 <= a10)) || !(9 <= \old(a19))) || !(0 == a12)) || (a19 <= 9 && a10 <= 2)) || !(14 == a4)) || !(\old(a19) <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 383.0s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 337.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 820 SDtfs, 3326 SDslu, 351 SDs, 0 SdLazy, 7692 SolverSat, 1352 SolverUnsat, 92 SolverUnknown, 0 SolverNotchecked, 234.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3606 GetRequests, 3517 SyntacticMatches, 14 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 132.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2678occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 1166 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 113 PreInvPairs, 157 NumberOfFragments, 337 HoareAnnotationTreeSize, 113 FomulaSimplifications, 6793 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5341 FormulaSimplificationTreeSizeReductionInter, 4.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 40.9s InterpolantComputationTime, 2381 NumberOfCodeBlocks, 2130 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 3142 ConstructedInterpolants, 12 QuantifiedInterpolants, 2897514 SizeOfPredicates, 22 NumberOfNonLiveVariables, 3832 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 2131/2222 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...