/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_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:18:58,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 01:18:58,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 01:18:58,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 01:18:58,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 01:18:58,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 01:18:58,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 01:18:58,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 01:18:58,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 01:18:58,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 01:18:58,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 01:18:58,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 01:18:58,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:18:58,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:18:58,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:18:58,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:18:58,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:18:58,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:18:58,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:18:58,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:18:58,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:18:58,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:18:58,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:18:58,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:18:58,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:18:58,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:18:58,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:18:58,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:18:58,554 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 01:18:58,569 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:18:58,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:18:58,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:18:58,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:18:58,571 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:18:58,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:18:58,571 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:18:58,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:18:58,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:18:58,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:18:58,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:18:58,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:18:58,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:18:58,573 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:18:58,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:18:58,573 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:18:58,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:18:58,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:18:58,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:18:58,574 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:18:58,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:18:58,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:18:58,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:18:58,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:18:58,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:18:58,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:18:58,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:18:58,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:18:58,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:18:58,576 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 01:18:58,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:18:58,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:18:58,894 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:18:58,895 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:18:58,896 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:18:58,896 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-07-21 01:18:58,967 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e3316ae7/2c667765193a4f12a5a08922fc632842/FLAGc2ed3b2f2 [2020-07-21 01:18:59,612 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:18:59,613 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-07-21 01:18:59,632 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e3316ae7/2c667765193a4f12a5a08922fc632842/FLAGc2ed3b2f2 [2020-07-21 01:18:59,836 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e3316ae7/2c667765193a4f12a5a08922fc632842 [2020-07-21 01:18:59,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:18:59,851 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:18:59,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:18:59,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:18:59,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:18:59,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:18:59" (1/1) ... [2020-07-21 01:18:59,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a4fd27a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:59, skipping insertion in model container [2020-07-21 01:18:59,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:18:59" (1/1) ... [2020-07-21 01:18:59,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:18:59,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:19:00,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:19:00,617 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:19:00,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:19:00,756 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:19:00,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:00 WrapperNode [2020-07-21 01:19:00,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:19:00,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:19:00,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:19:00,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:19:00,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:00" (1/1) ... [2020-07-21 01:19:00,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:00" (1/1) ... [2020-07-21 01:19:00,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:00" (1/1) ... [2020-07-21 01:19:00,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:00" (1/1) ... [2020-07-21 01:19:00,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:00" (1/1) ... [2020-07-21 01:19:00,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:00" (1/1) ... [2020-07-21 01:19:00,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:00" (1/1) ... [2020-07-21 01:19:00,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:19:00,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:19:00,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:19:00,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:19:00,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:19:00,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:19:00,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:19:00,967 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:19:00,967 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:19:00,967 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:19:00,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:19:00,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:19:00,968 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:19:00,968 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:19:00,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:19:00,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:19:02,219 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:19:02,219 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:19:02,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:19:02 BoogieIcfgContainer [2020-07-21 01:19:02,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:19:02,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:19:02,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:19:02,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:19:02,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:18:59" (1/3) ... [2020-07-21 01:19:02,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340327ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:19:02, skipping insertion in model container [2020-07-21 01:19:02,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:00" (2/3) ... [2020-07-21 01:19:02,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340327ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:19:02, skipping insertion in model container [2020-07-21 01:19:02,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:19:02" (3/3) ... [2020-07-21 01:19:02,243 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label17.c [2020-07-21 01:19:02,254 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:19:02,265 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:19:02,279 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:19:02,314 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:19:02,315 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:19:02,315 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:19:02,316 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:19:02,316 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:19:02,316 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:19:02,316 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:19:02,316 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:19:02,345 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 01:19:02,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-21 01:19:02,367 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:02,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:19:02,369 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:02,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:02,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1778503114, now seen corresponding path program 1 times [2020-07-21 01:19:02,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:02,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813220725] [2020-07-21 01:19:02,386 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:02,752 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:19:02,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:02,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-21 01:19:02,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:03,119 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2020-07-21 01:19:03,257 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2020-07-21 01:19:03,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:19:03,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:19:03,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813220725] [2020-07-21 01:19:03,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:19:03,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 01:19:03,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496805418] [2020-07-21 01:19:03,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 01:19:03,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:03,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 01:19:03,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:19:03,763 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 11 states. [2020-07-21 01:19:05,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:05,488 INFO L93 Difference]: Finished difference Result 472 states and 791 transitions. [2020-07-21 01:19:05,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:19:05,492 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 122 [2020-07-21 01:19:05,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:05,520 INFO L225 Difference]: With dead ends: 472 [2020-07-21 01:19:05,521 INFO L226 Difference]: Without dead ends: 203 [2020-07-21 01:19:05,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-07-21 01:19:05,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-21 01:19:05,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-07-21 01:19:05,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-21 01:19:05,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 275 transitions. [2020-07-21 01:19:05,591 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 275 transitions. Word has length 122 [2020-07-21 01:19:05,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:05,592 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 275 transitions. [2020-07-21 01:19:05,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 01:19:05,592 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 275 transitions. [2020-07-21 01:19:05,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-21 01:19:05,596 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:05,597 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:19:05,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:05,811 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:05,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:05,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1289919151, now seen corresponding path program 1 times [2020-07-21 01:19:05,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:05,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665558799] [2020-07-21 01:19:05,814 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:05,921 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:19:05,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:05,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-21 01:19:05,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:06,607 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:19:06,612 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:19:06,613 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:19:06,714 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:19:06,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:19:07,432 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-07-21 01:19:07,592 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 01:19:07,743 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 01:19:07,884 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 01:19:07,888 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 7 conjuncts [2020-07-21 01:19:07,890 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 6 conjuncts [2020-07-21 01:19:07,892 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:19:07,894 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:19:07,896 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:19:07,897 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:19:07,902 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:19:07,903 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:19:07,904 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:19:07,912 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:19:07,914 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:19:07,916 INFO L501 QuantifierPusher]: Distributing 14 disjuncts over 3 conjuncts [2020-07-21 01:19:07,918 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:19:07,919 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:19:07,920 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:19:07,924 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:19:07,925 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:19:07,927 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:19:07,928 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:19:07,930 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:19:07,931 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:19:07,936 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:19:07,938 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:19:07,940 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:19:07,941 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:19:08,545 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 37 [2020-07-21 01:19:08,549 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 8, 6, 7, 1] term [2020-07-21 01:19:08,549 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:19:08,615 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:19:08,616 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:08,670 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:08,695 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:08,839 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:19:08,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665558799] [2020-07-21 01:19:08,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:19:08,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2020-07-21 01:19:08,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009847850] [2020-07-21 01:19:08,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-21 01:19:08,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:08,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-21 01:19:08,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-07-21 01:19:08,844 INFO L87 Difference]: Start difference. First operand 203 states and 275 transitions. Second operand 25 states. [2020-07-21 01:19:09,930 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-07-21 01:19:10,478 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 01:19:10,817 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-07-21 01:19:11,315 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-07-21 01:19:11,547 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-07-21 01:19:12,024 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:19:14,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:14,623 INFO L93 Difference]: Finished difference Result 588 states and 878 transitions. [2020-07-21 01:19:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-21 01:19:14,624 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 130 [2020-07-21 01:19:14,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:14,631 INFO L225 Difference]: With dead ends: 588 [2020-07-21 01:19:14,632 INFO L226 Difference]: Without dead ends: 451 [2020-07-21 01:19:14,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 232 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=551, Invalid=1611, Unknown=0, NotChecked=0, Total=2162 [2020-07-21 01:19:14,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-07-21 01:19:14,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 417. [2020-07-21 01:19:14,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-21 01:19:14,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 548 transitions. [2020-07-21 01:19:14,683 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 548 transitions. Word has length 130 [2020-07-21 01:19:14,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:14,684 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 548 transitions. [2020-07-21 01:19:14,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-21 01:19:14,684 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 548 transitions. [2020-07-21 01:19:14,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 01:19:14,689 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:14,690 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:19:14,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:14,903 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:14,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:14,904 INFO L82 PathProgramCache]: Analyzing trace with hash 2082377679, now seen corresponding path program 1 times [2020-07-21 01:19:14,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:14,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1937121275] [2020-07-21 01:19:14,906 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:15,019 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:19:15,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:15,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:19:15,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:15,050 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:19:15,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:19:15,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1937121275] [2020-07-21 01:19:15,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:19:15,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:19:15,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121238703] [2020-07-21 01:19:15,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:19:15,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:15,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:19:15,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:19:15,054 INFO L87 Difference]: Start difference. First operand 417 states and 548 transitions. Second operand 3 states. [2020-07-21 01:19:15,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:15,614 INFO L93 Difference]: Finished difference Result 1044 states and 1434 transitions. [2020-07-21 01:19:15,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:19:15,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-21 01:19:15,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:15,622 INFO L225 Difference]: With dead ends: 1044 [2020-07-21 01:19:15,622 INFO L226 Difference]: Without dead ends: 693 [2020-07-21 01:19:15,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:19:15,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2020-07-21 01:19:15,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2020-07-21 01:19:15,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-07-21 01:19:15,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 869 transitions. [2020-07-21 01:19:15,662 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 869 transitions. Word has length 133 [2020-07-21 01:19:15,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:15,663 INFO L479 AbstractCegarLoop]: Abstraction has 693 states and 869 transitions. [2020-07-21 01:19:15,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:19:15,663 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 869 transitions. [2020-07-21 01:19:15,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-21 01:19:15,669 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:15,669 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:19:15,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:15,883 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:15,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:15,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1533113042, now seen corresponding path program 1 times [2020-07-21 01:19:15,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:15,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923289707] [2020-07-21 01:19:15,885 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:15,982 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:19:15,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:15,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:19:15,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:16,049 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:19:16,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:19:16,122 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:19:16,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923289707] [2020-07-21 01:19:16,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:19:16,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:19:16,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135566471] [2020-07-21 01:19:16,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:19:16,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:16,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:19:16,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:19:16,125 INFO L87 Difference]: Start difference. First operand 693 states and 869 transitions. Second operand 7 states. [2020-07-21 01:19:17,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:17,659 INFO L93 Difference]: Finished difference Result 2372 states and 3098 transitions. [2020-07-21 01:19:17,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:19:17,665 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-07-21 01:19:17,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:17,675 INFO L225 Difference]: With dead ends: 2372 [2020-07-21 01:19:17,676 INFO L226 Difference]: Without dead ends: 1745 [2020-07-21 01:19:17,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 301 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:19:17,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2020-07-21 01:19:17,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1545. [2020-07-21 01:19:17,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1545 states. [2020-07-21 01:19:17,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1983 transitions. [2020-07-21 01:19:17,738 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1983 transitions. Word has length 153 [2020-07-21 01:19:17,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:17,739 INFO L479 AbstractCegarLoop]: Abstraction has 1545 states and 1983 transitions. [2020-07-21 01:19:17,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:19:17,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1983 transitions. [2020-07-21 01:19:17,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-07-21 01:19:17,746 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:17,746 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:19:17,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:17,962 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:17,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:17,963 INFO L82 PathProgramCache]: Analyzing trace with hash -660182150, now seen corresponding path program 1 times [2020-07-21 01:19:17,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:17,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087821593] [2020-07-21 01:19:17,964 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:18,078 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:19:18,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:18,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:19:18,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:18,118 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:19:18,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:19:18,166 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:19:18,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087821593] [2020-07-21 01:19:18,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:19:18,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:19:18,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701329790] [2020-07-21 01:19:18,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:19:18,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:18,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:19:18,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:19:18,169 INFO L87 Difference]: Start difference. First operand 1545 states and 1983 transitions. Second operand 6 states. [2020-07-21 01:19:19,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:19,006 INFO L93 Difference]: Finished difference Result 3223 states and 4220 transitions. [2020-07-21 01:19:19,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:19:19,007 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2020-07-21 01:19:19,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:19,022 INFO L225 Difference]: With dead ends: 3223 [2020-07-21 01:19:19,022 INFO L226 Difference]: Without dead ends: 1744 [2020-07-21 01:19:19,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 312 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 01:19:19,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2020-07-21 01:19:19,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1565. [2020-07-21 01:19:19,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1565 states. [2020-07-21 01:19:19,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 1928 transitions. [2020-07-21 01:19:19,108 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 1928 transitions. Word has length 158 [2020-07-21 01:19:19,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:19,108 INFO L479 AbstractCegarLoop]: Abstraction has 1565 states and 1928 transitions. [2020-07-21 01:19:19,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:19:19,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 1928 transitions. [2020-07-21 01:19:19,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-21 01:19:19,114 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:19,115 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:19:19,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:19,329 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:19,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:19,329 INFO L82 PathProgramCache]: Analyzing trace with hash -437489647, now seen corresponding path program 1 times [2020-07-21 01:19:19,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:19,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [333745010] [2020-07-21 01:19:19,330 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:19,419 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:19:19,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:19,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:19:19,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:19,523 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 01:19:19,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:19:19,744 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2020-07-21 01:19:19,797 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:19,798 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:19,799 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:19,799 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:19,801 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:19:19,801 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:19,802 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 2, 1] term [2020-07-21 01:19:19,802 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:19,916 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 50 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-21 01:19:19,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [333745010] [2020-07-21 01:19:19,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:19:19,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:19:19,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945043405] [2020-07-21 01:19:19,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:19:19,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:19,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:19:19,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:19:19,923 INFO L87 Difference]: Start difference. First operand 1565 states and 1928 transitions. Second operand 7 states. [2020-07-21 01:19:21,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:21,248 INFO L93 Difference]: Finished difference Result 3804 states and 4698 transitions. [2020-07-21 01:19:21,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:19:21,252 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 168 [2020-07-21 01:19:21,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:21,264 INFO L225 Difference]: With dead ends: 3804 [2020-07-21 01:19:21,265 INFO L226 Difference]: Without dead ends: 2027 [2020-07-21 01:19:21,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 332 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:19:21,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2020-07-21 01:19:21,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1690. [2020-07-21 01:19:21,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1690 states. [2020-07-21 01:19:21,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 1959 transitions. [2020-07-21 01:19:21,352 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 1959 transitions. Word has length 168 [2020-07-21 01:19:21,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:21,353 INFO L479 AbstractCegarLoop]: Abstraction has 1690 states and 1959 transitions. [2020-07-21 01:19:21,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:19:21,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 1959 transitions. [2020-07-21 01:19:21,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-07-21 01:19:21,360 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:21,361 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:19:21,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:21,575 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:21,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:21,575 INFO L82 PathProgramCache]: Analyzing trace with hash 567799949, now seen corresponding path program 1 times [2020-07-21 01:19:21,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:21,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799878260] [2020-07-21 01:19:21,576 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:21,695 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:19:21,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:21,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:19:21,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:21,741 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 01:19:21,744 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:19:21,797 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 01:19:21,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:19:22,015 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2020-07-21 01:19:22,073 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:22,074 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:22,075 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:19:22,075 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:22,076 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:22,077 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:22,078 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:22,079 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:22,080 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:22,115 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:22,215 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 84 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 01:19:22,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799878260] [2020-07-21 01:19:22,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:19:22,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:19:22,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776631423] [2020-07-21 01:19:22,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:19:22,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:22,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:19:22,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:19:22,218 INFO L87 Difference]: Start difference. First operand 1690 states and 1959 transitions. Second operand 7 states. [2020-07-21 01:19:23,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:23,567 INFO L93 Difference]: Finished difference Result 4744 states and 5721 transitions. [2020-07-21 01:19:23,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-21 01:19:23,568 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-07-21 01:19:23,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:23,583 INFO L225 Difference]: With dead ends: 4744 [2020-07-21 01:19:23,583 INFO L226 Difference]: Without dead ends: 2844 [2020-07-21 01:19:23,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 394 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:19:23,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2020-07-21 01:19:23,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 1837. [2020-07-21 01:19:23,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1837 states. [2020-07-21 01:19:23,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 2052 transitions. [2020-07-21 01:19:23,653 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 2052 transitions. Word has length 198 [2020-07-21 01:19:23,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:23,653 INFO L479 AbstractCegarLoop]: Abstraction has 1837 states and 2052 transitions. [2020-07-21 01:19:23,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:19:23,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 2052 transitions. [2020-07-21 01:19:23,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-07-21 01:19:23,660 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:23,660 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:19:23,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:23,876 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:23,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:23,876 INFO L82 PathProgramCache]: Analyzing trace with hash -300451100, now seen corresponding path program 1 times [2020-07-21 01:19:23,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:23,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762409501] [2020-07-21 01:19:23,878 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:24,005 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:19:24,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:24,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-21 01:19:24,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:24,033 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 01:19:24,033 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:19:24,116 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 123 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-07-21 01:19:24,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:19:24,339 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 01:19:24,410 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:24,410 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:24,411 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:24,412 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:24,413 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 2, 2, 1] term [2020-07-21 01:19:24,414 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:24,415 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 01:19:24,415 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:24,415 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:19:24,416 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:24,417 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:24,418 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[8, 2, 1] term [2020-07-21 01:19:24,418 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:24,450 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:24,519 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:24,522 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:24,714 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 108 proven. 47 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:19:24,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762409501] [2020-07-21 01:19:24,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:19:24,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2020-07-21 01:19:24,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430575387] [2020-07-21 01:19:24,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:19:24,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:24,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:19:24,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:19:24,716 INFO L87 Difference]: Start difference. First operand 1837 states and 2052 transitions. Second operand 8 states. [2020-07-21 01:19:25,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:25,767 INFO L93 Difference]: Finished difference Result 3616 states and 4097 transitions. [2020-07-21 01:19:25,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:19:25,769 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 220 [2020-07-21 01:19:25,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:25,778 INFO L225 Difference]: With dead ends: 3616 [2020-07-21 01:19:25,778 INFO L226 Difference]: Without dead ends: 1700 [2020-07-21 01:19:25,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 435 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:19:25,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2020-07-21 01:19:25,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1549. [2020-07-21 01:19:25,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1549 states. [2020-07-21 01:19:25,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1549 states to 1549 states and 1728 transitions. [2020-07-21 01:19:25,829 INFO L78 Accepts]: Start accepts. Automaton has 1549 states and 1728 transitions. Word has length 220 [2020-07-21 01:19:25,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:25,830 INFO L479 AbstractCegarLoop]: Abstraction has 1549 states and 1728 transitions. [2020-07-21 01:19:25,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:19:25,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1549 states and 1728 transitions. [2020-07-21 01:19:25,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-07-21 01:19:25,838 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:25,838 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-07-21 01:19:26,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:26,054 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:26,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:26,054 INFO L82 PathProgramCache]: Analyzing trace with hash -244851374, now seen corresponding path program 1 times [2020-07-21 01:19:26,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:26,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [494022264] [2020-07-21 01:19:26,055 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:26,186 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:19:26,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:26,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:19:26,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:26,268 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-21 01:19:26,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:19:26,484 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 01:19:26,531 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:26,532 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:26,532 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:26,533 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:26,534 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:19:26,534 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:26,535 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[6, 2, 1] term [2020-07-21 01:19:26,535 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:26,536 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:19:26,536 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:26,680 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 176 proven. 15 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-07-21 01:19:26,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [494022264] [2020-07-21 01:19:26,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:19:26,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:19:26,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901545360] [2020-07-21 01:19:26,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:19:26,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:26,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:19:26,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:19:26,682 INFO L87 Difference]: Start difference. First operand 1549 states and 1728 transitions. Second operand 7 states. [2020-07-21 01:19:27,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:27,950 INFO L93 Difference]: Finished difference Result 3733 states and 4243 transitions. [2020-07-21 01:19:27,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:19:27,950 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 271 [2020-07-21 01:19:27,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:27,961 INFO L225 Difference]: With dead ends: 3733 [2020-07-21 01:19:27,961 INFO L226 Difference]: Without dead ends: 2250 [2020-07-21 01:19:27,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 540 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:19:27,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2250 states. [2020-07-21 01:19:28,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2250 to 2244. [2020-07-21 01:19:28,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2244 states. [2020-07-21 01:19:28,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 2521 transitions. [2020-07-21 01:19:28,014 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 2521 transitions. Word has length 271 [2020-07-21 01:19:28,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:28,015 INFO L479 AbstractCegarLoop]: Abstraction has 2244 states and 2521 transitions. [2020-07-21 01:19:28,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:19:28,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 2521 transitions. [2020-07-21 01:19:28,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-07-21 01:19:28,024 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:28,024 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:19:28,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:28,238 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:28,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:28,238 INFO L82 PathProgramCache]: Analyzing trace with hash -914630707, now seen corresponding path program 1 times [2020-07-21 01:19:28,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:28,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332173284] [2020-07-21 01:19:28,240 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:28,413 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:19:28,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:28,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:19:28,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:28,485 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-07-21 01:19:28,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:19:28,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332173284] [2020-07-21 01:19:28,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:19:28,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:19:28,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692848510] [2020-07-21 01:19:28,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:19:28,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:28,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:19:28,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:19:28,488 INFO L87 Difference]: Start difference. First operand 2244 states and 2521 transitions. Second operand 3 states. [2020-07-21 01:19:29,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:29,025 INFO L93 Difference]: Finished difference Result 4420 states and 4971 transitions. [2020-07-21 01:19:29,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:19:29,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 284 [2020-07-21 01:19:29,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:29,027 INFO L225 Difference]: With dead ends: 4420 [2020-07-21 01:19:29,027 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:19:29,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:19:29,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:19:29,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:19:29,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:19:29,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:19:29,035 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 284 [2020-07-21 01:19:29,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:29,035 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:19:29,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:19:29,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:19:29,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:19:29,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:29,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:19:29,931 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 177 [2020-07-21 01:19:30,165 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 165 [2020-07-21 01:19:31,667 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 213 DAG size of output: 106 [2020-07-21 01:19:32,662 WARN L193 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 66 [2020-07-21 01:19:33,609 WARN L193 SmtUtils]: Spent 943.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 66 [2020-07-21 01:19:33,613 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:19:33,614 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (<= |old(~a16~0)| ~a16~0) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 01:19:33,614 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:19:33,614 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 01:19:33,614 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 01:19:33,615 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,615 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,615 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,615 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,615 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,615 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,615 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 01:19:33,616 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 01:19:33,616 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 01:19:33,616 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 01:19:33,616 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 01:19:33,616 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 01:19:33,617 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 01:19:33,617 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 01:19:33,617 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 01:19:33,617 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 01:19:33,617 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,617 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,617 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,617 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,617 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,618 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,618 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 01:19:33,618 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 01:19:33,618 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 01:19:33,618 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 01:19:33,618 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 01:19:33,618 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 01:19:33,618 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 01:19:33,618 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 01:19:33,618 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 01:19:33,619 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 01:19:33,619 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 01:19:33,619 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 524) no Hoare annotation was computed. [2020-07-21 01:19:33,619 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 01:19:33,619 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 01:19:33,619 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 01:19:33,619 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 01:19:33,619 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,619 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,619 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,620 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,620 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,620 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 01:19:33,620 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 01:19:33,620 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 01:19:33,620 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 01:19:33,620 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 01:19:33,620 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 01:19:33,620 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 01:19:33,620 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 01:19:33,620 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 01:19:33,621 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,621 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,621 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,621 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,621 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,621 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 01:19:33,621 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 01:19:33,621 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 01:19:33,621 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 01:19:33,621 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 01:19:33,622 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 01:19:33,622 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 01:19:33,622 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 01:19:33,622 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 01:19:33,622 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 01:19:33,622 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 01:19:33,622 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 01:19:33,622 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 01:19:33,622 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,623 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,623 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,623 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,623 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,623 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 01:19:33,623 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 01:19:33,623 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 01:19:33,623 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 01:19:33,624 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 01:19:33,624 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 01:19:33,624 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 01:19:33,624 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 01:19:33,624 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 01:19:33,624 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,624 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,624 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,624 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,624 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,625 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,625 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 01:19:33,625 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,625 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 01:19:33,625 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 01:19:33,625 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 01:19:33,625 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 01:19:33,625 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 01:19:33,625 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 01:19:33,625 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 01:19:33,625 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 01:19:33,626 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 01:19:33,626 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 01:19:33,626 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 01:19:33,626 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 01:19:33,626 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 01:19:33,626 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,626 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,626 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,626 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,626 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,626 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 01:19:33,626 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 01:19:33,626 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 01:19:33,626 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 01:19:33,627 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 01:19:33,627 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 01:19:33,627 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 01:19:33,627 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 01:19:33,627 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,627 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,627 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,627 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,627 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,627 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 01:19:33,627 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 01:19:33,627 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 01:19:33,628 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 01:19:33,628 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 01:19:33,628 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 01:19:33,628 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 01:19:33,628 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 01:19:33,628 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 01:19:33,628 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 01:19:33,628 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 |old(~a16~0)|)) (.cse14 (= ~a7~0 |old(~a7~0)|)) (.cse16 (<= ~a8~0 13)) (.cse3 (= ~a17~0 |old(~a17~0)|)) (.cse4 (<= |old(~a16~0)| ~a16~0)) (.cse5 (= ~a20~0 |old(~a20~0)|)) (.cse6 (= ~a21~0 |old(~a21~0)|))) (let ((.cse2 (= 1 ~a7~0)) (.cse10 (and .cse1 .cse14 .cse16 .cse3 .cse4 .cse5 .cse6)) (.cse11 (not (<= |old(~a8~0)| 13))) (.cse17 (not (= 15 |old(~a8~0)|))) (.cse7 (not (<= |old(~a16~0)| 5))) (.cse13 (not (= 1 |old(~a17~0)|))) (.cse18 (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|)))) (.cse19 (= 15 ~a8~0)) (.cse0 (not (= 1 |old(~a7~0)|))) (.cse21 (not (< 4 |old(~a16~0)|))) (.cse20 (and (not (= 1 |old(~a20~0)|)) (not (< 6 |old(~a16~0)|)))) (.cse12 (not (<= |old(~a7~0)| 0))) (.cse8 (not (= 1 |old(~a21~0)|))) (.cse9 (not (<= |old(~a17~0)| 0))) (.cse15 (not (= 8 ~a12~0)))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) .cse7 .cse8 .cse9) (or .cse10 .cse11 (not (<= |old(~a16~0)| 4))) (or .cse12 .cse13 .cse8 (and .cse1 .cse14 .cse4 (= 1 ~a17~0) .cse5 .cse6) .cse15) (or .cse12 .cse7 .cse11 (and .cse1 .cse14 .cse16 .cse4 .cse5 .cse6) .cse8 .cse15) (or .cse0 (and .cse1 .cse2 (<= 5 ~a16~0) .cse6) (not (<= 5 |old(~a16~0)|)) .cse8) (or (not (= 5 |old(~a16~0)|)) .cse17 .cse12 (not (<= |old(~a20~0)| 0)) .cse13 .cse18 .cse8 .cse19 .cse15) (or .cse10 .cse11 .cse20) (or .cse17 .cse12 .cse7 .cse21 .cse13 .cse18 .cse8 .cse19 .cse15 .cse20) (or (and .cse4 .cse5) .cse0 .cse21 .cse8 .cse20) (or (and .cse1 .cse14 .cse3 .cse4 .cse5 .cse6) .cse12 .cse8 .cse9 .cse15)))) [2020-07-21 01:19:33,628 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 01:19:33,629 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,629 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,629 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,629 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,629 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 01:19:33,629 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,629 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,629 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 01:19:33,629 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 01:19:33,629 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 01:19:33,629 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 01:19:33,629 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 01:19:33,629 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 01:19:33,629 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 01:19:33,630 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 01:19:33,630 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 01:19:33,630 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 01:19:33,630 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 01:19:33,630 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 01:19:33,630 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,630 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,630 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,630 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,630 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,630 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 01:19:33,630 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,630 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 01:19:33,630 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 01:19:33,631 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 01:19:33,631 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 01:19:33,631 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 01:19:33,631 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 01:19:33,631 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 01:19:33,631 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 01:19:33,631 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 01:19:33,631 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 01:19:33,631 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 01:19:33,631 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 01:19:33,631 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 01:19:33,631 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 01:19:33,631 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,632 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,632 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,632 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,632 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,632 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:33,632 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 01:19:33,632 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 01:19:33,632 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 01:19:33,632 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 01:19:33,632 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 01:19:33,632 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 01:19:33,632 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 01:19:33,632 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 01:19:33,632 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 01:19:33,633 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 01:19:33,633 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:19:33,633 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (= 1 ~a21~0) (= 1 ~a20~0) (= 15 ~a8~0) (= 5 ~a16~0) (= 8 ~a12~0)) [2020-07-21 01:19:33,633 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:19:33,633 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:19:33,633 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= 1 ~a21~0) (= ~a20~0 |old(~a20~0)|) (= 15 ~a8~0) (= 5 ~a16~0)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0))) [2020-07-21 01:19:33,633 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 01:19:33,633 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (or (< 6 ~a16~0) (= 1 ~a20~0))) (.cse7 (<= ~a17~0 0)) (.cse6 (not (= 1 |old(~a7~0)|))) (.cse5 (<= ~a7~0 0)) (.cse2 (< 4 |old(~a16~0)|)) (.cse1 (<= ~a8~0 13)) (.cse9 (<= ~a16~0 4)) (.cse3 (= 1 ~a7~0)) (.cse4 (= 1 ~a21~0)) (.cse8 (= 8 ~a12~0))) (or (and .cse0 .cse1) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not .cse2) (and .cse0 .cse3 .cse4 (< 4 ~a16~0)) (not (= 1 |old(~a17~0)|)) (and .cse1 .cse5 (<= ~a16~0 5) .cse4) (and .cse6 .cse7 .cse5 .cse2 .cse4 .cse8) (and .cse3 .cse7 .cse4 .cse9) (and .cse6 .cse5 (= 1 ~a17~0) .cse2 .cse4 .cse8) (and .cse1 .cse9) (not (= 1 |old(~a20~0)|)) (and (<= ~a16~0 |old(~a16~0)|) .cse3 (<= 5 ~a16~0) .cse4) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a21~0)|)) (not .cse8))) [2020-07-21 01:19:33,633 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 01:19:33,633 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 01:19:33,634 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (or (< 6 ~a16~0) (= 1 ~a20~0))) (.cse7 (<= ~a17~0 0)) (.cse6 (not (= 1 |old(~a7~0)|))) (.cse5 (<= ~a7~0 0)) (.cse2 (< 4 |old(~a16~0)|)) (.cse1 (<= ~a8~0 13)) (.cse9 (<= ~a16~0 4)) (.cse3 (= 1 ~a7~0)) (.cse4 (= 1 ~a21~0)) (.cse8 (= 8 ~a12~0))) (or (and .cse0 .cse1) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not .cse2) (and .cse0 .cse3 .cse4 (< 4 ~a16~0)) (not (= 1 |old(~a17~0)|)) (and .cse1 .cse5 (<= ~a16~0 5) .cse4) (and .cse6 .cse7 .cse5 .cse2 .cse4 .cse8) (and .cse3 .cse7 .cse4 .cse9) (and .cse6 .cse5 (= 1 ~a17~0) .cse2 .cse4 .cse8) (and .cse1 .cse9) (not (= 1 |old(~a20~0)|)) (and (<= ~a16~0 |old(~a16~0)|) .cse3 (<= 5 ~a16~0) .cse4) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a21~0)|)) (not .cse8))) [2020-07-21 01:19:33,634 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 01:19:33,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:19:33 BoogieIcfgContainer [2020-07-21 01:19:33,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:19:33,656 INFO L168 Benchmark]: Toolchain (without parser) took 33807.85 ms. Allocated memory was 136.3 MB in the beginning and 497.0 MB in the end (delta: 360.7 MB). Free memory was 99.1 MB in the beginning and 86.6 MB in the end (delta: 12.5 MB). Peak memory consumption was 376.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:19:33,657 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 01:19:33,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 905.19 ms. Allocated memory was 136.3 MB in the beginning and 207.1 MB in the end (delta: 70.8 MB). Free memory was 98.6 MB in the beginning and 172.6 MB in the end (delta: -74.0 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2020-07-21 01:19:33,659 INFO L168 Benchmark]: Boogie Preprocessor took 134.14 ms. Allocated memory is still 207.1 MB. Free memory was 172.6 MB in the beginning and 167.4 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2020-07-21 01:19:33,659 INFO L168 Benchmark]: RCFGBuilder took 1340.06 ms. Allocated memory was 207.1 MB in the beginning and 235.9 MB in the end (delta: 28.8 MB). Free memory was 167.4 MB in the beginning and 181.2 MB in the end (delta: -13.8 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:19:33,660 INFO L168 Benchmark]: TraceAbstraction took 31421.45 ms. Allocated memory was 235.9 MB in the beginning and 497.0 MB in the end (delta: 261.1 MB). Free memory was 181.2 MB in the beginning and 86.6 MB in the end (delta: 94.6 MB). Peak memory consumption was 358.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:19:33,664 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 905.19 ms. Allocated memory was 136.3 MB in the beginning and 207.1 MB in the end (delta: 70.8 MB). Free memory was 98.6 MB in the beginning and 172.6 MB in the end (delta: -74.0 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.14 ms. Allocated memory is still 207.1 MB. Free memory was 172.6 MB in the beginning and 167.4 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1340.06 ms. Allocated memory was 207.1 MB in the beginning and 235.9 MB in the end (delta: 28.8 MB). Free memory was 167.4 MB in the beginning and 181.2 MB in the end (delta: -13.8 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31421.45 ms. Allocated memory was 235.9 MB in the beginning and 497.0 MB in the end (delta: 261.1 MB). Free memory was 181.2 MB in the beginning and 86.6 MB in the end (delta: 94.6 MB). Peak memory consumption was 358.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 524]: 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: ((((((((((((((((6 < a16 || 1 == a20) && a8 <= 13) || !(15 == \old(a8))) || !(\old(a7) <= 0)) || !(4 < \old(a16))) || ((((6 < a16 || 1 == a20) && 1 == a7) && 1 == a21) && 4 < a16)) || !(1 == \old(a17))) || (((a8 <= 13 && a7 <= 0) && a16 <= 5) && 1 == a21)) || (((((!(1 == \old(a7)) && a17 <= 0) && a7 <= 0) && 4 < \old(a16)) && 1 == a21) && 8 == a12)) || (((1 == a7 && a17 <= 0) && 1 == a21) && a16 <= 4)) || (((((!(1 == \old(a7)) && a7 <= 0) && 1 == a17) && 4 < \old(a16)) && 1 == a21) && 8 == a12)) || (a8 <= 13 && a16 <= 4)) || !(1 == \old(a20))) || (((a16 <= \old(a16) && 1 == a7) && 5 <= a16) && 1 == a21)) || !(\old(a16) <= 5)) || !(1 == \old(a21))) || !(8 == a12) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.9s, OverallIterations: 10, TraceHistogramMax: 6, AutomataDifference: 16.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 624 SDtfs, 4644 SDslu, 519 SDs, 0 SdLazy, 10863 SolverSat, 1345 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3193 GetRequests, 3071 SyntacticMatches, 9 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2244occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 1914 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 122 PreInvPairs, 170 NumberOfFragments, 782 HoareAnnotationTreeSize, 122 FomulaSimplifications, 16466 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 12360 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 1837 NumberOfCodeBlocks, 1076 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 3118 ConstructedInterpolants, 0 QuantifiedInterpolants, 3214016 SizeOfPredicates, 64 NumberOfNonLiveVariables, 3927 ConjunctsInSsa, 187 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 1649/1765 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...