/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:51:10,310 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 22:51:10,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 22:51:10,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 22:51:10,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 22:51:10,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 22:51:10,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 22:51:10,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 22:51:10,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 22:51:10,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 22:51:10,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:51:10,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:51:10,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:51:10,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:51:10,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:51:10,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:51:10,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:51:10,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:51:10,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:51:10,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:51:10,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:51:10,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:51:10,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:51:10,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:51:10,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:51:10,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:51:10,397 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 22:51:10,432 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:51:10,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:51:10,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:51:10,435 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:51:10,435 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:51:10,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:51:10,435 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:51:10,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:51:10,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:51:10,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:51:10,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:51:10,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:51:10,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:51:10,439 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:51:10,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:51:10,440 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:51:10,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:51:10,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:51:10,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:51:10,441 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:51:10,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:51:10,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:51:10,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:51:10,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:51:10,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:51:10,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:51:10,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:10,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:51:10,447 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:51:10,447 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 22:51:10,724 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:51:10,738 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:51:10,741 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:51:10,743 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:51:10,743 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:51:10,744 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label36.c [2020-07-21 22:51:10,818 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77d8546c8/292f82a49ccc4529a29b6b64c13bf59f/FLAGbd7ae9c60 [2020-07-21 22:51:11,427 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:51:11,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label36.c [2020-07-21 22:51:11,439 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77d8546c8/292f82a49ccc4529a29b6b64c13bf59f/FLAGbd7ae9c60 [2020-07-21 22:51:11,650 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77d8546c8/292f82a49ccc4529a29b6b64c13bf59f [2020-07-21 22:51:11,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:51:11,666 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:51:11,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:51:11,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:51:11,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:51:11,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:51:11" (1/1) ... [2020-07-21 22:51:11,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c24edc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:11, skipping insertion in model container [2020-07-21 22:51:11,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:51:11" (1/1) ... [2020-07-21 22:51:11,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:51:11,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:51:12,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:51:12,298 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:51:12,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:51:12,574 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:51:12,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:12 WrapperNode [2020-07-21 22:51:12,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:51:12,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:51:12,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:51:12,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:51:12,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:12" (1/1) ... [2020-07-21 22:51:12,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:12" (1/1) ... [2020-07-21 22:51:12,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:12" (1/1) ... [2020-07-21 22:51:12,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:12" (1/1) ... [2020-07-21 22:51:12,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:12" (1/1) ... [2020-07-21 22:51:12,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:12" (1/1) ... [2020-07-21 22:51:12,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:12" (1/1) ... [2020-07-21 22:51:12,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:51:12,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:51:12,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:51:12,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:51:12,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:12" (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 22:51:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:51:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:51:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:51:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:51:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:51:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:51:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:51:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:51:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:51:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:51:12,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:51:13,915 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:51:13,916 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:51:13,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:51:13 BoogieIcfgContainer [2020-07-21 22:51:13,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:51:13,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:51:13,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:51:13,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:51:13,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:51:11" (1/3) ... [2020-07-21 22:51:13,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9bb667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:51:13, skipping insertion in model container [2020-07-21 22:51:13,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:51:12" (2/3) ... [2020-07-21 22:51:13,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9bb667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:51:13, skipping insertion in model container [2020-07-21 22:51:13,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:51:13" (3/3) ... [2020-07-21 22:51:13,930 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label36.c [2020-07-21 22:51:13,940 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:51:13,948 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:51:13,962 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:51:13,989 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:51:13,989 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:51:13,989 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:51:13,989 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:51:13,990 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:51:13,990 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:51:13,990 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:51:13,990 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:51:14,015 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 22:51:14,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-07-21 22:51:14,027 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:14,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:14,028 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:14,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:14,035 INFO L82 PathProgramCache]: Analyzing trace with hash 92920350, now seen corresponding path program 1 times [2020-07-21 22:51:14,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:14,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883823255] [2020-07-21 22:51:14,045 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 22:51:14,225 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:51:14,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:14,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-21 22:51:14,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:14,567 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2020-07-21 22:51:14,702 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2020-07-21 22:51:15,100 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 22:51:15,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:51:15,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883823255] [2020-07-21 22:51:15,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:51:15,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 22:51:15,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351839048] [2020-07-21 22:51:15,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 22:51:15,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:15,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 22:51:15,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:51:15,127 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 11 states. [2020-07-21 22:51:16,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:16,737 INFO L93 Difference]: Finished difference Result 472 states and 791 transitions. [2020-07-21 22:51:16,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:51:16,741 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2020-07-21 22:51:16,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:16,755 INFO L225 Difference]: With dead ends: 472 [2020-07-21 22:51:16,755 INFO L226 Difference]: Without dead ends: 203 [2020-07-21 22:51:16,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-07-21 22:51:16,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-21 22:51:16,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-07-21 22:51:16,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-21 22:51:16,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 275 transitions. [2020-07-21 22:51:16,825 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 275 transitions. Word has length 108 [2020-07-21 22:51:16,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:16,826 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 275 transitions. [2020-07-21 22:51:16,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 22:51:16,827 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 275 transitions. [2020-07-21 22:51:16,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-21 22:51:16,831 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:16,831 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:17,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:17,045 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:17,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:17,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1860356217, now seen corresponding path program 1 times [2020-07-21 22:51:17,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:17,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266569256] [2020-07-21 22:51:17,047 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 22:51:17,147 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:51:17,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:17,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-21 22:51:17,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:17,810 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:51:17,817 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:51:17,818 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:51:17,907 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:17,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:18,599 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-07-21 22:51:18,757 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 22:51:18,915 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 22:51:19,054 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 22:51:19,059 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 7 conjuncts [2020-07-21 22:51:19,061 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 6 conjuncts [2020-07-21 22:51:19,063 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 22:51:19,064 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 22:51:19,065 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:19,066 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 22:51:19,070 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 22:51:19,071 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 22:51:19,073 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:19,080 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:19,083 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:19,086 INFO L501 QuantifierPusher]: Distributing 14 disjuncts over 3 conjuncts [2020-07-21 22:51:19,088 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:51:19,091 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:51:19,092 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:19,098 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:19,099 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:19,102 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:19,105 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:19,109 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:51:19,110 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:19,123 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:51:19,124 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:19,129 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:51:19,129 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:51:19,684 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 37 [2020-07-21 22:51:19,689 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 8, 6, 7, 1] term [2020-07-21 22:51:19,690 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:51:19,759 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:19,765 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:19,819 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:19,843 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:20,036 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:20,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266569256] [2020-07-21 22:51:20,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:20,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2020-07-21 22:51:20,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090028789] [2020-07-21 22:51:20,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-21 22:51:20,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:20,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-21 22:51:20,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-07-21 22:51:20,058 INFO L87 Difference]: Start difference. First operand 203 states and 275 transitions. Second operand 25 states. [2020-07-21 22:51:21,101 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-07-21 22:51:21,668 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 22:51:21,977 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-07-21 22:51:22,481 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-07-21 22:51:22,718 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-07-21 22:51:23,183 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 22:51:25,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:25,603 INFO L93 Difference]: Finished difference Result 590 states and 879 transitions. [2020-07-21 22:51:25,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-21 22:51:25,605 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 116 [2020-07-21 22:51:25,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:25,619 INFO L225 Difference]: With dead ends: 590 [2020-07-21 22:51:25,619 INFO L226 Difference]: Without dead ends: 453 [2020-07-21 22:51:25,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 204 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=551, Invalid=1611, Unknown=0, NotChecked=0, Total=2162 [2020-07-21 22:51:25,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-07-21 22:51:25,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 417. [2020-07-21 22:51:25,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-21 22:51:25,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 549 transitions. [2020-07-21 22:51:25,679 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 549 transitions. Word has length 116 [2020-07-21 22:51:25,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:25,680 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 549 transitions. [2020-07-21 22:51:25,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-21 22:51:25,680 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 549 transitions. [2020-07-21 22:51:25,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-21 22:51:25,684 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:25,684 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:25,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:25,889 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:25,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:25,890 INFO L82 PathProgramCache]: Analyzing trace with hash 871696247, now seen corresponding path program 1 times [2020-07-21 22:51:25,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:25,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461385007] [2020-07-21 22:51:25,892 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 22:51:25,987 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:51:25,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:25,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:51:25,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:26,027 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:26,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:51:26,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461385007] [2020-07-21 22:51:26,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:51:26,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:51:26,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059295511] [2020-07-21 22:51:26,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:51:26,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:26,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:51:26,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:51:26,030 INFO L87 Difference]: Start difference. First operand 417 states and 549 transitions. Second operand 3 states. [2020-07-21 22:51:26,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:26,622 INFO L93 Difference]: Finished difference Result 1042 states and 1436 transitions. [2020-07-21 22:51:26,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:51:26,623 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-07-21 22:51:26,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:26,628 INFO L225 Difference]: With dead ends: 1042 [2020-07-21 22:51:26,629 INFO L226 Difference]: Without dead ends: 691 [2020-07-21 22:51:26,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 22:51:26,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2020-07-21 22:51:26,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2020-07-21 22:51:26,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-07-21 22:51:26,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 898 transitions. [2020-07-21 22:51:26,666 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 898 transitions. Word has length 119 [2020-07-21 22:51:26,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:26,666 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 898 transitions. [2020-07-21 22:51:26,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:51:26,667 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 898 transitions. [2020-07-21 22:51:26,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-21 22:51:26,673 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:26,673 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:26,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:26,887 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:26,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:26,888 INFO L82 PathProgramCache]: Analyzing trace with hash 179939970, now seen corresponding path program 1 times [2020-07-21 22:51:26,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:26,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762985838] [2020-07-21 22:51:26,890 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 22:51:26,978 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:51:26,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:26,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:51:26,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:27,030 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:27,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:27,081 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:27,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762985838] [2020-07-21 22:51:27,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:27,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:51:27,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148033450] [2020-07-21 22:51:27,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:51:27,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:27,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:51:27,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:51:27,085 INFO L87 Difference]: Start difference. First operand 691 states and 898 transitions. Second operand 6 states. [2020-07-21 22:51:27,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:27,884 INFO L93 Difference]: Finished difference Result 1620 states and 2190 transitions. [2020-07-21 22:51:27,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:51:27,885 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2020-07-21 22:51:27,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:27,899 INFO L225 Difference]: With dead ends: 1620 [2020-07-21 22:51:27,899 INFO L226 Difference]: Without dead ends: 995 [2020-07-21 22:51:27,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:51:27,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2020-07-21 22:51:27,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 973. [2020-07-21 22:51:27,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 973 states. [2020-07-21 22:51:27,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1268 transitions. [2020-07-21 22:51:27,977 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1268 transitions. Word has length 128 [2020-07-21 22:51:27,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:27,983 INFO L479 AbstractCegarLoop]: Abstraction has 973 states and 1268 transitions. [2020-07-21 22:51:27,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:51:27,984 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1268 transitions. [2020-07-21 22:51:27,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-21 22:51:27,992 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:27,992 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:28,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:28,206 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:28,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:28,207 INFO L82 PathProgramCache]: Analyzing trace with hash -2007497610, now seen corresponding path program 1 times [2020-07-21 22:51:28,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:28,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051062914] [2020-07-21 22:51:28,208 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 22:51:28,284 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:51:28,285 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:28,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 22:51:28,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:28,366 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:28,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:28,566 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 22:51:28,616 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 22:51:28,617 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:28,617 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:51:28,623 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:28,624 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 1] term [2020-07-21 22:51:28,624 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:28,625 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:28,626 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:28,627 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:28,628 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:28,628 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:28,629 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:28,742 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:28,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051062914] [2020-07-21 22:51:28,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:28,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:51:28,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411668315] [2020-07-21 22:51:28,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:51:28,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:28,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:51:28,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:51:28,746 INFO L87 Difference]: Start difference. First operand 973 states and 1268 transitions. Second operand 7 states. [2020-07-21 22:51:30,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:30,150 INFO L93 Difference]: Finished difference Result 2491 states and 3253 transitions. [2020-07-21 22:51:30,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:51:30,153 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 134 [2020-07-21 22:51:30,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:30,158 INFO L225 Difference]: With dead ends: 2491 [2020-07-21 22:51:30,158 INFO L226 Difference]: Without dead ends: 1304 [2020-07-21 22:51:30,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 264 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:51:30,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2020-07-21 22:51:30,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1241. [2020-07-21 22:51:30,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1241 states. [2020-07-21 22:51:30,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1468 transitions. [2020-07-21 22:51:30,204 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1468 transitions. Word has length 134 [2020-07-21 22:51:30,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:30,204 INFO L479 AbstractCegarLoop]: Abstraction has 1241 states and 1468 transitions. [2020-07-21 22:51:30,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:51:30,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1468 transitions. [2020-07-21 22:51:30,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 22:51:30,208 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:30,208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:30,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:30,422 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:30,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:30,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1140646021, now seen corresponding path program 1 times [2020-07-21 22:51:30,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:30,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427663068] [2020-07-21 22:51:30,424 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 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 22:51:30,553 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:51:30,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:30,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 71 conjunts are in the unsatisfiable core [2020-07-21 22:51:30,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:31,198 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:51:31,199 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:51:31,199 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:51:31,280 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:31,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:31,998 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 22:51:32,008 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-07-21 22:51:32,009 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 22:51:32,010 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:51:32,011 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 22:51:32,012 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 22:51:32,013 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:51:32,019 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:51:32,020 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:51:32,021 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:51:32,021 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:51:32,022 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:51:32,023 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:51:32,024 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 22:51:32,025 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:51:32,026 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:32,027 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 22:51:32,028 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:51:32,029 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:32,030 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:51:32,031 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:51:32,032 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 22:51:32,033 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:51:32,034 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:32,035 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:51:32,036 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 22:51:32,037 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:51:32,038 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:32,040 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:51:32,041 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:51:32,042 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:51:32,042 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 22:51:32,043 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:51:32,043 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:32,045 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 22:51:32,046 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:51:32,046 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:32,048 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 22:51:32,049 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:51:32,049 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:32,051 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:51:32,052 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:51:32,053 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:51:32,053 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:51:32,054 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 22:51:32,055 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:51:32,056 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:32,057 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 22:51:32,058 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:51:32,058 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:32,060 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 22:51:32,061 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:51:32,061 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:32,063 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 22:51:32,063 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:51:32,064 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:32,066 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:51:32,067 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:51:32,068 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:51:32,069 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:51:32,070 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 22:51:32,070 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 22:51:32,071 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:51:32,072 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:32,073 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 22:51:32,074 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:51:32,074 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:32,076 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 22:51:32,077 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:51:32,077 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:32,079 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 22:51:32,080 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:51:32,080 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:32,082 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 22:51:32,082 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 22:51:32,083 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:51:32,946 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 38 [2020-07-21 22:51:32,950 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 8, 6, 1] term [2020-07-21 22:51:32,950 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:51:33,043 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:51:33,044 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:51:33,116 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:51:33,163 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 22:51:33,346 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:51:33,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427663068] [2020-07-21 22:51:33,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:33,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2020-07-21 22:51:33,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666979464] [2020-07-21 22:51:33,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-21 22:51:33,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:33,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-21 22:51:33,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2020-07-21 22:51:33,349 INFO L87 Difference]: Start difference. First operand 1241 states and 1468 transitions. Second operand 25 states. [2020-07-21 22:51:35,049 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-07-21 22:51:35,332 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-07-21 22:51:35,724 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-07-21 22:51:36,076 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 41 [2020-07-21 22:51:36,305 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-07-21 22:51:36,539 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2020-07-21 22:51:36,783 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-07-21 22:51:37,219 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-07-21 22:51:37,473 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-07-21 22:51:37,866 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-07-21 22:51:38,138 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-07-21 22:51:38,529 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2020-07-21 22:51:39,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:39,655 INFO L93 Difference]: Finished difference Result 2709 states and 3267 transitions. [2020-07-21 22:51:39,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-07-21 22:51:39,656 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 149 [2020-07-21 22:51:39,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:39,664 INFO L225 Difference]: With dead ends: 2709 [2020-07-21 22:51:39,664 INFO L226 Difference]: Without dead ends: 1500 [2020-07-21 22:51:39,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 272 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=651, Invalid=1899, Unknown=0, NotChecked=0, Total=2550 [2020-07-21 22:51:39,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2020-07-21 22:51:39,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1433. [2020-07-21 22:51:39,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1433 states. [2020-07-21 22:51:39,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 1679 transitions. [2020-07-21 22:51:39,721 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 1679 transitions. Word has length 149 [2020-07-21 22:51:39,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:39,722 INFO L479 AbstractCegarLoop]: Abstraction has 1433 states and 1679 transitions. [2020-07-21 22:51:39,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-21 22:51:39,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 1679 transitions. [2020-07-21 22:51:39,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-21 22:51:39,727 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:39,727 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:39,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:39,941 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:39,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:39,942 INFO L82 PathProgramCache]: Analyzing trace with hash -702208640, now seen corresponding path program 1 times [2020-07-21 22:51:39,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:39,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150545881] [2020-07-21 22:51:39,943 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 22:51:40,059 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:51:40,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:40,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 22:51:40,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:40,116 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 46 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 22:51:40,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:40,201 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 22:51:40,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150545881] [2020-07-21 22:51:40,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:40,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-07-21 22:51:40,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144231447] [2020-07-21 22:51:40,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:51:40,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:40,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:51:40,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:51:40,204 INFO L87 Difference]: Start difference. First operand 1433 states and 1679 transitions. Second operand 6 states. [2020-07-21 22:51:41,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:41,057 INFO L93 Difference]: Finished difference Result 2271 states and 2704 transitions. [2020-07-21 22:51:41,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:51:41,065 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-07-21 22:51:41,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:41,078 INFO L225 Difference]: With dead ends: 2271 [2020-07-21 22:51:41,078 INFO L226 Difference]: Without dead ends: 2269 [2020-07-21 22:51:41,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:51:41,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2269 states. [2020-07-21 22:51:41,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2269 to 1709. [2020-07-21 22:51:41,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1709 states. [2020-07-21 22:51:41,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2010 transitions. [2020-07-21 22:51:41,150 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2010 transitions. Word has length 166 [2020-07-21 22:51:41,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:41,151 INFO L479 AbstractCegarLoop]: Abstraction has 1709 states and 2010 transitions. [2020-07-21 22:51:41,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:51:41,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2010 transitions. [2020-07-21 22:51:41,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-21 22:51:41,158 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:41,158 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:41,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:41,376 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:41,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:41,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1179185997, now seen corresponding path program 1 times [2020-07-21 22:51:41,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:41,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458518015] [2020-07-21 22:51:41,377 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 22:51:41,490 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:51:41,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:41,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-21 22:51:41,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:41,527 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 22:51:41,527 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:51:41,579 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 76 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 22:51:41,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:41,784 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 22:51:41,836 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:41,836 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 1] term [2020-07-21 22:51:41,837 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:41,838 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:41,838 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:41,839 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:41,839 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:41,840 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:41,883 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:41,949 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:41,951 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 78 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 22:51:42,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458518015] [2020-07-21 22:51:42,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:42,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2020-07-21 22:51:42,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247538825] [2020-07-21 22:51:42,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:51:42,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:42,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:51:42,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:51:42,085 INFO L87 Difference]: Start difference. First operand 1709 states and 2010 transitions. Second operand 8 states. [2020-07-21 22:51:42,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:42,955 INFO L93 Difference]: Finished difference Result 3646 states and 4400 transitions. [2020-07-21 22:51:42,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:51:42,961 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 181 [2020-07-21 22:51:42,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:42,970 INFO L225 Difference]: With dead ends: 3646 [2020-07-21 22:51:42,971 INFO L226 Difference]: Without dead ends: 2183 [2020-07-21 22:51:42,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 355 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:51:42,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2183 states. [2020-07-21 22:51:43,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2183 to 2126. [2020-07-21 22:51:43,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2126 states. [2020-07-21 22:51:43,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2126 states to 2126 states and 2507 transitions. [2020-07-21 22:51:43,030 INFO L78 Accepts]: Start accepts. Automaton has 2126 states and 2507 transitions. Word has length 181 [2020-07-21 22:51:43,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:43,030 INFO L479 AbstractCegarLoop]: Abstraction has 2126 states and 2507 transitions. [2020-07-21 22:51:43,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 22:51:43,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2126 states and 2507 transitions. [2020-07-21 22:51:43,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-21 22:51:43,036 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:43,037 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:43,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:43,251 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:43,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:43,252 INFO L82 PathProgramCache]: Analyzing trace with hash 780692072, now seen corresponding path program 1 times [2020-07-21 22:51:43,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:43,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135624319] [2020-07-21 22:51:43,253 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 22:51:43,358 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:51:43,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:43,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 22:51:43,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:43,418 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-21 22:51:43,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:43,619 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 22:51:43,663 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:51:43,664 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:43,664 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:51:43,665 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:43,665 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:43,666 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:43,777 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-21 22:51:43,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [135624319] [2020-07-21 22:51:43,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:43,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:51:43,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148498059] [2020-07-21 22:51:43,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:51:43,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:43,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:51:43,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:51:43,780 INFO L87 Difference]: Start difference. First operand 2126 states and 2507 transitions. Second operand 7 states. [2020-07-21 22:51:45,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:45,157 INFO L93 Difference]: Finished difference Result 5388 states and 6474 transitions. [2020-07-21 22:51:45,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:51:45,159 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2020-07-21 22:51:45,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:45,174 INFO L225 Difference]: With dead ends: 5388 [2020-07-21 22:51:45,174 INFO L226 Difference]: Without dead ends: 3508 [2020-07-21 22:51:45,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 398 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:51:45,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3508 states. [2020-07-21 22:51:45,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3508 to 2958. [2020-07-21 22:51:45,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2958 states. [2020-07-21 22:51:45,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 3401 transitions. [2020-07-21 22:51:45,254 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 3401 transitions. Word has length 200 [2020-07-21 22:51:45,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:45,255 INFO L479 AbstractCegarLoop]: Abstraction has 2958 states and 3401 transitions. [2020-07-21 22:51:45,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:51:45,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 3401 transitions. [2020-07-21 22:51:45,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-07-21 22:51:45,264 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:45,264 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 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] [2020-07-21 22:51:45,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:45,480 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:45,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:45,481 INFO L82 PathProgramCache]: Analyzing trace with hash -2030424408, now seen corresponding path program 1 times [2020-07-21 22:51:45,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:45,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163537752] [2020-07-21 22:51:45,482 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 22:51:45,617 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:51:45,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:45,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 22:51:45,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:45,668 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 149 proven. 6 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-21 22:51:45,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:45,785 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 134 proven. 28 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-07-21 22:51:45,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163537752] [2020-07-21 22:51:45,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:45,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:51:45,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482710734] [2020-07-21 22:51:45,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:51:45,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:45,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:51:45,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:51:45,788 INFO L87 Difference]: Start difference. First operand 2958 states and 3401 transitions. Second operand 6 states. [2020-07-21 22:51:46,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:46,696 INFO L93 Difference]: Finished difference Result 6097 states and 7048 transitions. [2020-07-21 22:51:46,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:51:46,697 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 232 [2020-07-21 22:51:46,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:46,710 INFO L225 Difference]: With dead ends: 6097 [2020-07-21 22:51:46,710 INFO L226 Difference]: Without dead ends: 3385 [2020-07-21 22:51:46,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 458 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:51:46,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2020-07-21 22:51:46,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 2692. [2020-07-21 22:51:46,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2692 states. [2020-07-21 22:51:46,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3056 transitions. [2020-07-21 22:51:46,785 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3056 transitions. Word has length 232 [2020-07-21 22:51:46,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:46,786 INFO L479 AbstractCegarLoop]: Abstraction has 2692 states and 3056 transitions. [2020-07-21 22:51:46,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:51:46,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3056 transitions. [2020-07-21 22:51:46,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-07-21 22:51:46,793 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:46,793 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:47,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:47,008 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:47,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:47,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1079906807, now seen corresponding path program 1 times [2020-07-21 22:51:47,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:47,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1337671425] [2020-07-21 22:51:47,009 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 22:51:47,149 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:51:47,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:47,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 22:51:47,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:47,221 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 22:51:47,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:51:47,434 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 22:51:47,483 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 22:51:47,484 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:47,484 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:51:47,484 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:47,485 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:47,486 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:51:47,486 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:47,487 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:47,487 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:47,488 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:47,488 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 2, 1] term [2020-07-21 22:51:47,489 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:51:47,631 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 22:51:47,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1337671425] [2020-07-21 22:51:47,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:51:47,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:51:47,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280454907] [2020-07-21 22:51:47,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:51:47,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:47,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:51:47,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:51:47,633 INFO L87 Difference]: Start difference. First operand 2692 states and 3056 transitions. Second operand 7 states. [2020-07-21 22:51:49,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:49,098 INFO L93 Difference]: Finished difference Result 6669 states and 7735 transitions. [2020-07-21 22:51:49,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:51:49,099 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-07-21 22:51:49,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:49,122 INFO L225 Difference]: With dead ends: 6669 [2020-07-21 22:51:49,122 INFO L226 Difference]: Without dead ends: 4225 [2020-07-21 22:51:49,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:51:49,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4225 states. [2020-07-21 22:51:49,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4225 to 4086. [2020-07-21 22:51:49,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4086 states. [2020-07-21 22:51:49,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4086 states to 4086 states and 4644 transitions. [2020-07-21 22:51:49,231 INFO L78 Accepts]: Start accepts. Automaton has 4086 states and 4644 transitions. Word has length 237 [2020-07-21 22:51:49,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:49,232 INFO L479 AbstractCegarLoop]: Abstraction has 4086 states and 4644 transitions. [2020-07-21 22:51:49,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:51:49,232 INFO L276 IsEmpty]: Start isEmpty. Operand 4086 states and 4644 transitions. [2020-07-21 22:51:49,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-07-21 22:51:49,242 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:49,243 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:51:49,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:49,457 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:49,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:49,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1103094990, now seen corresponding path program 1 times [2020-07-21 22:51:49,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:49,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1868872860] [2020-07-21 22:51:49,458 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:49,614 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:51:49,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:49,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:51:49,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:49,670 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 22:51:49,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:51:49,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1868872860] [2020-07-21 22:51:49,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:51:49,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:51:49,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344334842] [2020-07-21 22:51:49,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:51:49,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:49,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:51:49,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:51:49,673 INFO L87 Difference]: Start difference. First operand 4086 states and 4644 transitions. Second operand 3 states. [2020-07-21 22:51:50,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:50,301 INFO L93 Difference]: Finished difference Result 6252 states and 7127 transitions. [2020-07-21 22:51:50,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:51:50,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 250 [2020-07-21 22:51:50,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:50,313 INFO L225 Difference]: With dead ends: 6252 [2020-07-21 22:51:50,314 INFO L226 Difference]: Without dead ends: 2414 [2020-07-21 22:51:50,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 248 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 22:51:50,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2020-07-21 22:51:50,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2279. [2020-07-21 22:51:50,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2279 states. [2020-07-21 22:51:50,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 2504 transitions. [2020-07-21 22:51:50,385 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 2504 transitions. Word has length 250 [2020-07-21 22:51:50,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:50,386 INFO L479 AbstractCegarLoop]: Abstraction has 2279 states and 2504 transitions. [2020-07-21 22:51:50,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:51:50,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 2504 transitions. [2020-07-21 22:51:50,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-07-21 22:51:50,403 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:51:50,403 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:50,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:50,617 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:51:50,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:51:50,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1842631411, now seen corresponding path program 1 times [2020-07-21 22:51:50,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:51:50,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143195944] [2020-07-21 22:51:50,618 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:50,932 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:51:50,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:51:50,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:51:50,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:51:51,025 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-07-21 22:51:51,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:51:51,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143195944] [2020-07-21 22:51:51,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:51:51,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:51:51,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001632220] [2020-07-21 22:51:51,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:51:51,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:51:51,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:51:51,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:51:51,029 INFO L87 Difference]: Start difference. First operand 2279 states and 2504 transitions. Second operand 3 states. [2020-07-21 22:51:51,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:51:51,547 INFO L93 Difference]: Finished difference Result 4623 states and 5107 transitions. [2020-07-21 22:51:51,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:51:51,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 322 [2020-07-21 22:51:51,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:51:51,553 INFO L225 Difference]: With dead ends: 4623 [2020-07-21 22:51:51,553 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:51:51,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 320 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 22:51:51,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:51:51,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:51:51,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:51:51,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:51:51,562 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 322 [2020-07-21 22:51:51,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:51:51,563 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:51:51,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:51:51,563 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:51:51,563 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:51:51,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:51:51,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:51:52,468 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 163 [2020-07-21 22:51:52,685 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 165 [2020-07-21 22:51:54,555 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 239 DAG size of output: 116 [2020-07-21 22:51:55,475 WARN L193 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 54 [2020-07-21 22:51:56,345 WARN L193 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 54 [2020-07-21 22:51:56,350 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:51:56,350 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (or (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (< 0 |old(~a7~0)|) (not (= 1 |old(~a21~0)|)) (= 15 ~a8~0) (not (= 8 ~a12~0))) (<= |old(~a8~0)| ~a8~0) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 22:51:56,350 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:51:56,351 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 22:51:56,351 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 22:51:56,351 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,351 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,351 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,351 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,352 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,352 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,352 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 22:51:56,352 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 22:51:56,353 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 22:51:56,353 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 22:51:56,353 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 22:51:56,353 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 22:51:56,353 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 22:51:56,353 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 22:51:56,353 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 22:51:56,354 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 22:51:56,354 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,354 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,354 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,354 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,354 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,354 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,354 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 22:51:56,354 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 22:51:56,355 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 22:51:56,355 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 22:51:56,355 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 22:51:56,355 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 22:51:56,355 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 22:51:56,355 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 22:51:56,355 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 22:51:56,355 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 22:51:56,356 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 22:51:56,356 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 482) no Hoare annotation was computed. [2020-07-21 22:51:56,356 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 22:51:56,356 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 22:51:56,356 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 22:51:56,356 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 22:51:56,356 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,356 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,357 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,357 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,357 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,357 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 22:51:56,357 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 22:51:56,357 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 22:51:56,357 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 22:51:56,357 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 22:51:56,357 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 22:51:56,357 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 22:51:56,358 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 22:51:56,358 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 22:51:56,358 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,358 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,358 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,358 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,358 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,358 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 22:51:56,358 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 22:51:56,359 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 22:51:56,359 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 22:51:56,359 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 22:51:56,359 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 22:51:56,359 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 22:51:56,359 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 22:51:56,359 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 22:51:56,359 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 22:51:56,359 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 22:51:56,360 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 22:51:56,360 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 22:51:56,360 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,360 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,360 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,360 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,360 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,360 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 22:51:56,360 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 22:51:56,361 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 22:51:56,361 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 22:51:56,361 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 22:51:56,361 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 22:51:56,361 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 22:51:56,361 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 22:51:56,361 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 22:51:56,361 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,361 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,361 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,362 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,362 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,362 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,362 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 22:51:56,362 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,362 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 22:51:56,362 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 22:51:56,362 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 22:51:56,362 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 22:51:56,362 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 22:51:56,363 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 22:51:56,363 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 22:51:56,363 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 22:51:56,363 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 22:51:56,363 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 22:51:56,363 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 22:51:56,363 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 22:51:56,363 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 22:51:56,363 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,364 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,364 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,364 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,364 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,364 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 22:51:56,364 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 22:51:56,364 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 22:51:56,364 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 22:51:56,364 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 22:51:56,364 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 22:51:56,365 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 22:51:56,365 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 22:51:56,365 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,365 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,365 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,365 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,365 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,365 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 22:51:56,365 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 22:51:56,365 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 22:51:56,365 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 22:51:56,365 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 22:51:56,366 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 22:51:56,366 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 22:51:56,366 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 22:51:56,366 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 22:51:56,366 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 22:51:56,366 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse25 (= 1 |old(~a21~0)|))) (let ((.cse18 (= 8 ~a12~0)) (.cse1 (not (= 1 |old(~a20~0)|))) (.cse2 (not (= 15 |old(~a8~0)|))) (.cse4 (not .cse25)) (.cse28 (= 15 ~a8~0)) (.cse24 (= 1 |old(~a17~0)|)) (.cse20 (<= ~a16~0 |old(~a16~0)|)) (.cse10 (= ~a7~0 |old(~a7~0)|)) (.cse11 (= ~a17~0 |old(~a17~0)|)) (.cse14 (<= |old(~a8~0)| ~a8~0)) (.cse15 (= 1 ~a21~0)) (.cse16 (= ~a20~0 |old(~a20~0)|))) (let ((.cse23 (not (= 1 |old(~a7~0)|))) (.cse26 (and .cse20 .cse10 .cse11 .cse14 .cse15 .cse16)) (.cse27 (not (<= |old(~a16~0)| 4))) (.cse6 (= 5 ~a16~0)) (.cse0 (not (= 5 |old(~a16~0)|))) (.cse19 (not .cse24)) (.cse3 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 2 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|)))) (.cse7 (not (<= |old(~a7~0)| 0))) (.cse8 (not (<= |old(~a20~0)| 0))) (.cse9 (not (< 13 |old(~a8~0)|))) (.cse22 (not (<= 6 |old(~a16~0)|))) (.cse12 (< 13 ~a8~0)) (.cse21 (<= 6 ~a16~0)) (.cse13 (<= ~a7~0 0)) (.cse17 (or .cse1 .cse2 .cse4 .cse28)) (.cse5 (not .cse18))) (and (or .cse0 .cse1 (not (< |old(~a17~0)| 1)) .cse2 (not (< |old(~a7~0)| 1)) .cse3 .cse4 .cse5 .cse6) (or .cse7 (not (<= |old(~a16~0)| 5)) .cse8 .cse9 .cse4 (and .cse10 .cse11 .cse12 .cse13 .cse14 (<= ~a16~0 5) .cse15 .cse16 .cse17 .cse18) .cse5) (or .cse1 .cse0 .cse2 .cse7 .cse19 .cse3 .cse4 .cse6 .cse5) (or (and .cse20 .cse10 .cse11 .cse21 .cse14 .cse15 .cse16) .cse1 .cse7 .cse19 .cse4 .cse22 .cse5) (or .cse23 (and .cse24 .cse4) .cse21 (and .cse19 .cse25) .cse22) (or .cse1 .cse7 .cse9 .cse4 .cse5 (and .cse20 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18)) (or .cse1 .cse21 .cse7 .cse9 .cse4 .cse22 .cse5) (or .cse7 .cse26 .cse8 .cse27 .cse4 .cse5) (or .cse23 (and .cse20 (= 1 ~a7~0) .cse11 .cse14 .cse16 (= ~a21~0 |old(~a21~0)|))) (or .cse1 .cse7 .cse26 .cse27 .cse4 .cse5) (or (and .cse28 .cse6) .cse0 .cse2 .cse7 .cse19 .cse8 .cse3 .cse4 .cse5) (or .cse7 .cse8 .cse9 .cse4 .cse22 (and .cse20 .cse10 .cse11 .cse12 .cse21 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18) .cse5))))) [2020-07-21 22:51:56,366 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 22:51:56,366 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,366 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,366 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,367 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,367 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 22:51:56,367 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,367 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,367 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 22:51:56,367 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 22:51:56,367 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 22:51:56,367 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 22:51:56,367 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 22:51:56,367 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 22:51:56,367 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 22:51:56,367 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 22:51:56,368 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 22:51:56,368 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 22:51:56,368 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 22:51:56,368 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 22:51:56,368 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,368 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,368 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,368 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,368 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,368 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 22:51:56,368 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,368 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 22:51:56,368 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 22:51:56,368 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 22:51:56,368 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 22:51:56,368 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 22:51:56,369 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 22:51:56,369 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 22:51:56,369 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 22:51:56,369 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 22:51:56,369 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 22:51:56,369 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 22:51:56,369 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 22:51:56,369 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 22:51:56,369 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 22:51:56,369 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,369 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,369 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,369 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,369 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,369 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:51:56,369 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 22:51:56,370 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 22:51:56,370 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 22:51:56,370 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 22:51:56,370 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 22:51:56,370 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 22:51:56,370 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 22:51:56,370 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 22:51:56,370 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 22:51:56,370 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 22:51:56,370 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:51:56,371 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (= 1 ~a21~0) (= 1 ~a20~0) (= 15 ~a8~0) (= 5 ~a16~0) (= 8 ~a12~0)) [2020-07-21 22:51:56,371 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:51:56,371 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:51:56,371 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a8~0 |old(~a8~0)|) (= 1 ~a21~0) (= ~a20~0 |old(~a20~0)|) (= 5 ~a16~0)) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0))) [2020-07-21 22:51:56,371 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 22:51:56,371 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse5 (not (= 1 |old(~a7~0)|))) (.cse6 (<= ~a16~0 4)) (.cse0 (< 13 ~a8~0)) (.cse7 (<= ~a20~0 0)) (.cse1 (<= ~a7~0 0)) (.cse2 (= 1 ~a21~0)) (.cse3 (= 1 ~a20~0)) (.cse4 (= 8 ~a12~0))) (or (not (= 5 |old(~a16~0)|)) (= 1 ~a7~0) (not (= 15 |old(~a8~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|)) (and .cse5 .cse1 .cse2 .cse3 .cse6 .cse4) (not (= 1 |old(~a20~0)|)) (and .cse5 .cse1 .cse2 .cse7 .cse6 .cse4) (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1 .cse2 .cse7 .cse4) (and (<= 6 ~a16~0) .cse1 (= 1 ~a17~0) .cse2 .cse3) (not .cse4))) [2020-07-21 22:51:56,372 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 22:51:56,372 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 22:51:56,372 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse5 (not (= 1 |old(~a7~0)|))) (.cse6 (<= ~a16~0 4)) (.cse0 (< 13 ~a8~0)) (.cse7 (<= ~a20~0 0)) (.cse1 (<= ~a7~0 0)) (.cse2 (= 1 ~a21~0)) (.cse3 (= 1 ~a20~0)) (.cse4 (= 8 ~a12~0))) (or (not (= 5 |old(~a16~0)|)) (= 1 ~a7~0) (not (= 15 |old(~a8~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|)) (and .cse5 .cse1 .cse2 .cse3 .cse6 .cse4) (not (= 1 |old(~a20~0)|)) (and .cse5 .cse1 .cse2 .cse7 .cse6 .cse4) (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1 .cse2 .cse7 .cse4) (and (<= 6 ~a16~0) .cse1 (= 1 ~a17~0) .cse2 .cse3) (not .cse4))) [2020-07-21 22:51:56,372 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 22:51:56,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:51:56 BoogieIcfgContainer [2020-07-21 22:51:56,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:51:56,396 INFO L168 Benchmark]: Toolchain (without parser) took 44732.12 ms. Allocated memory was 143.1 MB in the beginning and 609.2 MB in the end (delta: 466.1 MB). Free memory was 101.5 MB in the beginning and 515.5 MB in the end (delta: -414.0 MB). Peak memory consumption was 490.3 MB. Max. memory is 7.1 GB. [2020-07-21 22:51:56,397 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.1 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 22:51:56,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 907.60 ms. Allocated memory was 143.1 MB in the beginning and 205.0 MB in the end (delta: 61.9 MB). Free memory was 101.1 MB in the beginning and 171.5 MB in the end (delta: -70.4 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2020-07-21 22:51:56,398 INFO L168 Benchmark]: Boogie Preprocessor took 130.83 ms. Allocated memory is still 205.0 MB. Free memory was 171.5 MB in the beginning and 167.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-21 22:51:56,399 INFO L168 Benchmark]: RCFGBuilder took 1214.99 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 166.4 MB in the beginning and 181.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:51:56,399 INFO L168 Benchmark]: TraceAbstraction took 42471.52 ms. Allocated memory was 235.9 MB in the beginning and 609.2 MB in the end (delta: 373.3 MB). Free memory was 181.1 MB in the beginning and 515.5 MB in the end (delta: -334.4 MB). Peak memory consumption was 477.1 MB. Max. memory is 7.1 GB. [2020-07-21 22:51:56,402 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 143.1 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 907.60 ms. Allocated memory was 143.1 MB in the beginning and 205.0 MB in the end (delta: 61.9 MB). Free memory was 101.1 MB in the beginning and 171.5 MB in the end (delta: -70.4 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.83 ms. Allocated memory is still 205.0 MB. Free memory was 171.5 MB in the beginning and 167.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1214.99 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 166.4 MB in the beginning and 181.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 42471.52 ms. Allocated memory was 235.9 MB in the beginning and 609.2 MB in the end (delta: 373.3 MB). Free memory was 181.1 MB in the beginning and 515.5 MB in the end (delta: -334.4 MB). Peak memory consumption was 477.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 482]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((!(5 == \old(a16)) || 1 == a7) || !(15 == \old(a8))) || ((((13 < a8 && a7 <= 0) && 1 == a21) && 1 == a20) && 8 == a12)) || !(\old(a7) <= 0)) || !(1 == \old(a17))) || (((((!(1 == \old(a7)) && a7 <= 0) && 1 == a21) && 1 == a20) && a16 <= 4) && 8 == a12)) || !(1 == \old(a20))) || (((((!(1 == \old(a7)) && a7 <= 0) && 1 == a21) && a20 <= 0) && a16 <= 4) && 8 == a12)) || !(1 == \old(a21))) || ((((13 < a8 && a7 <= 0) && 1 == a21) && a20 <= 0) && 8 == a12)) || ((((6 <= a16 && a7 <= 0) && 1 == a17) && 1 == a21) && 1 == a20)) || !(8 == a12) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 37.7s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 23.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 898 SDtfs, 5792 SDslu, 719 SDs, 0 SdLazy, 13984 SolverSat, 1313 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3970 GetRequests, 3788 SyntacticMatches, 13 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 11.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4086occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 2322 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 165 PreInvPairs, 211 NumberOfFragments, 942 HoareAnnotationTreeSize, 165 FomulaSimplifications, 15385 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 17742 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 2342 NumberOfCodeBlocks, 1693 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 3863 ConstructedInterpolants, 0 QuantifiedInterpolants, 5477128 SizeOfPredicates, 87 NumberOfNonLiveVariables, 5475 ConjunctsInSsa, 276 ConjunctsInUnsatCore, 22 InterpolantComputations, 4 PerfectInterpolantSequences, 2172/2363 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...