/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_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:20:41,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 01:20:41,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 01:20:41,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 01:20:41,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 01:20:41,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 01:20:41,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 01:20:41,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 01:20:41,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 01:20:41,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 01:20:41,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 01:20:41,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 01:20:41,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:20:41,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:20:41,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:20:41,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:20:41,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:20:41,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:20:41,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:20:41,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:20:41,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:20:41,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:20:41,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:20:41,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:20:41,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:20:41,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:20:41,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:20:41,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:20:41,101 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 01:20:41,128 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:20:41,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:20:41,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:20:41,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:20:41,130 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:20:41,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:20:41,131 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:20:41,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:20:41,131 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:20:41,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:20:41,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:20:41,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:20:41,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:20:41,133 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:20:41,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:20:41,134 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:20:41,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:20:41,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:20:41,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:20:41,135 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:20:41,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:20:41,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:20:41,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:20:41,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:20:41,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:20:41,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:20:41,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:41,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:20:41,136 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:20:41,136 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 01:20:41,436 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:20:41,448 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:20:41,452 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:20:41,453 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:20:41,453 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:20:41,454 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-07-21 01:20:41,517 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/031e5d558/b086c19292a5434cb0a7f36b0470bd14/FLAG86a28ccaf [2020-07-21 01:20:42,065 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:20:42,066 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-07-21 01:20:42,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/031e5d558/b086c19292a5434cb0a7f36b0470bd14/FLAG86a28ccaf [2020-07-21 01:20:42,349 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/031e5d558/b086c19292a5434cb0a7f36b0470bd14 [2020-07-21 01:20:42,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:20:42,360 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:20:42,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:20:42,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:20:42,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:20:42,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:20:42" (1/1) ... [2020-07-21 01:20:42,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6980433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:42, skipping insertion in model container [2020-07-21 01:20:42,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:20:42" (1/1) ... [2020-07-21 01:20:42,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:20:42,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:20:42,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:20:42,931 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:20:43,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:20:43,049 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:20:43,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:43 WrapperNode [2020-07-21 01:20:43,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:20:43,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:20:43,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:20:43,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:20:43,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:43" (1/1) ... [2020-07-21 01:20:43,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:43" (1/1) ... [2020-07-21 01:20:43,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:43" (1/1) ... [2020-07-21 01:20:43,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:43" (1/1) ... [2020-07-21 01:20:43,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:43" (1/1) ... [2020-07-21 01:20:43,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:43" (1/1) ... [2020-07-21 01:20:43,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:43" (1/1) ... [2020-07-21 01:20:43,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:20:43,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:20:43,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:20:43,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:20:43,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:43" (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 01:20:43,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:20:43,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:20:43,220 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:20:43,220 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:20:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:20:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:20:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:20:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:20:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:20:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:20:43,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:20:44,472 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:20:44,472 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:20:44,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:20:44 BoogieIcfgContainer [2020-07-21 01:20:44,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:20:44,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:20:44,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:20:44,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:20:44,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:20:42" (1/3) ... [2020-07-21 01:20:44,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d80cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:20:44, skipping insertion in model container [2020-07-21 01:20:44,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:20:43" (2/3) ... [2020-07-21 01:20:44,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d80cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:20:44, skipping insertion in model container [2020-07-21 01:20:44,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:20:44" (3/3) ... [2020-07-21 01:20:44,499 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label41.c [2020-07-21 01:20:44,509 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:20:44,523 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:20:44,537 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:20:44,569 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:20:44,570 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:20:44,570 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:20:44,570 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:20:44,571 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:20:44,572 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:20:44,572 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:20:44,572 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:20:44,593 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 01:20:44,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-21 01:20:44,604 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:44,605 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] [2020-07-21 01:20:44,605 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:44,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:44,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1692915649, now seen corresponding path program 1 times [2020-07-21 01:20:44,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:44,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015307072] [2020-07-21 01:20:44,622 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 01:20:44,888 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:20:44,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:44,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-21 01:20:44,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:45,267 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2020-07-21 01:20:45,405 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2020-07-21 01:20:45,701 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 26 [2020-07-21 01:20:45,919 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 01:20:45,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:20:45,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1015307072] [2020-07-21 01:20:45,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:20:45,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 01:20:45,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244004143] [2020-07-21 01:20:45,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 01:20:45,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:45,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 01:20:45,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:20:45,953 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 11 states. [2020-07-21 01:20:47,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:47,668 INFO L93 Difference]: Finished difference Result 472 states and 791 transitions. [2020-07-21 01:20:47,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:20:47,672 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 91 [2020-07-21 01:20:47,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:47,685 INFO L225 Difference]: With dead ends: 472 [2020-07-21 01:20:47,685 INFO L226 Difference]: Without dead ends: 203 [2020-07-21 01:20:47,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-07-21 01:20:47,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-21 01:20:47,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-07-21 01:20:47,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-21 01:20:47,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 275 transitions. [2020-07-21 01:20:47,752 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 275 transitions. Word has length 91 [2020-07-21 01:20:47,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:47,753 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 275 transitions. [2020-07-21 01:20:47,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 01:20:47,753 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 275 transitions. [2020-07-21 01:20:47,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-07-21 01:20:47,759 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:47,759 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] [2020-07-21 01:20:47,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:47,974 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:47,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:47,975 INFO L82 PathProgramCache]: Analyzing trace with hash -37114748, now seen corresponding path program 1 times [2020-07-21 01:20:47,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:47,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [127705200] [2020-07-21 01:20:47,975 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 01:20:48,102 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:20:48,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:48,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:20:48,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:48,139 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:48,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:20:48,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [127705200] [2020-07-21 01:20:48,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:20:48,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:20:48,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19251866] [2020-07-21 01:20:48,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:20:48,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:48,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:20:48,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:20:48,143 INFO L87 Difference]: Start difference. First operand 203 states and 275 transitions. Second operand 3 states. [2020-07-21 01:20:48,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:48,692 INFO L93 Difference]: Finished difference Result 475 states and 684 transitions. [2020-07-21 01:20:48,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:20:48,692 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2020-07-21 01:20:48,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:48,703 INFO L225 Difference]: With dead ends: 475 [2020-07-21 01:20:48,704 INFO L226 Difference]: Without dead ends: 338 [2020-07-21 01:20:48,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 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 01:20:48,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-07-21 01:20:48,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2020-07-21 01:20:48,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-07-21 01:20:48,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 467 transitions. [2020-07-21 01:20:48,761 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 467 transitions. Word has length 99 [2020-07-21 01:20:48,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:48,764 INFO L479 AbstractCegarLoop]: Abstraction has 338 states and 467 transitions. [2020-07-21 01:20:48,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:20:48,764 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 467 transitions. [2020-07-21 01:20:48,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-07-21 01:20:48,774 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:48,774 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] [2020-07-21 01:20:48,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:48,980 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:48,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:48,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1027824070, now seen corresponding path program 1 times [2020-07-21 01:20:48,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:48,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053009677] [2020-07-21 01:20:48,983 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 01:20:49,078 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:20:49,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:49,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:20:49,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:49,125 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 01:20:49,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:20:49,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053009677] [2020-07-21 01:20:49,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:20:49,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:20:49,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342697988] [2020-07-21 01:20:49,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:20:49,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:49,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:20:49,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:20:49,130 INFO L87 Difference]: Start difference. First operand 338 states and 467 transitions. Second operand 3 states. [2020-07-21 01:20:49,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:49,716 INFO L93 Difference]: Finished difference Result 880 states and 1267 transitions. [2020-07-21 01:20:49,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:20:49,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-07-21 01:20:49,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:49,729 INFO L225 Difference]: With dead ends: 880 [2020-07-21 01:20:49,730 INFO L226 Difference]: Without dead ends: 608 [2020-07-21 01:20:49,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 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 01:20:49,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-21 01:20:49,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 608. [2020-07-21 01:20:49,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-07-21 01:20:49,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 826 transitions. [2020-07-21 01:20:49,787 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 826 transitions. Word has length 102 [2020-07-21 01:20:49,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:49,789 INFO L479 AbstractCegarLoop]: Abstraction has 608 states and 826 transitions. [2020-07-21 01:20:49,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:20:49,790 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 826 transitions. [2020-07-21 01:20:49,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-21 01:20:49,793 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:49,794 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:20:50,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:50,008 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:50,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:50,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1471633795, now seen corresponding path program 1 times [2020-07-21 01:20:50,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:50,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108977719] [2020-07-21 01:20:50,009 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 01:20:50,134 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:20:50,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:50,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:20:50,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:50,184 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:50,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:50,262 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:50,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108977719] [2020-07-21 01:20:50,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:50,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:20:50,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129916244] [2020-07-21 01:20:50,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:20:50,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:50,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:20:50,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:20:50,265 INFO L87 Difference]: Start difference. First operand 608 states and 826 transitions. Second operand 7 states. [2020-07-21 01:20:51,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:51,529 INFO L93 Difference]: Finished difference Result 2139 states and 3096 transitions. [2020-07-21 01:20:51,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:20:51,531 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 124 [2020-07-21 01:20:51,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:51,541 INFO L225 Difference]: With dead ends: 2139 [2020-07-21 01:20:51,542 INFO L226 Difference]: Without dead ends: 1597 [2020-07-21 01:20:51,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 243 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:20:51,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1597 states. [2020-07-21 01:20:51,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1597 to 1581. [2020-07-21 01:20:51,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1581 states. [2020-07-21 01:20:51,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2096 transitions. [2020-07-21 01:20:51,606 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2096 transitions. Word has length 124 [2020-07-21 01:20:51,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:51,607 INFO L479 AbstractCegarLoop]: Abstraction has 1581 states and 2096 transitions. [2020-07-21 01:20:51,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:20:51,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2096 transitions. [2020-07-21 01:20:51,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 01:20:51,611 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:51,612 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:20:51,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:51,826 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:51,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:51,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1605716217, now seen corresponding path program 1 times [2020-07-21 01:20:51,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:51,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811705614] [2020-07-21 01:20:51,827 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 01:20:51,921 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:20:51,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:51,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:20:51,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:51,958 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:51,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:52,027 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:52,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811705614] [2020-07-21 01:20:52,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:52,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:20:52,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942485291] [2020-07-21 01:20:52,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:20:52,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:52,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:20:52,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:20:52,032 INFO L87 Difference]: Start difference. First operand 1581 states and 2096 transitions. Second operand 7 states. [2020-07-21 01:20:52,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:52,889 INFO L93 Difference]: Finished difference Result 3547 states and 4872 transitions. [2020-07-21 01:20:52,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:20:52,890 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2020-07-21 01:20:52,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:52,906 INFO L225 Difference]: With dead ends: 3547 [2020-07-21 01:20:52,906 INFO L226 Difference]: Without dead ends: 2032 [2020-07-21 01:20:52,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:20:52,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2032 states. [2020-07-21 01:20:52,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2032 to 1718. [2020-07-21 01:20:52,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1718 states. [2020-07-21 01:20:52,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 2285 transitions. [2020-07-21 01:20:52,983 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 2285 transitions. Word has length 133 [2020-07-21 01:20:52,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:52,983 INFO L479 AbstractCegarLoop]: Abstraction has 1718 states and 2285 transitions. [2020-07-21 01:20:52,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:20:52,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 2285 transitions. [2020-07-21 01:20:52,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-21 01:20:52,988 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:52,989 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:20:53,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:53,202 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:53,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:53,203 INFO L82 PathProgramCache]: Analyzing trace with hash 910344196, now seen corresponding path program 1 times [2020-07-21 01:20:53,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:53,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596958526] [2020-07-21 01:20:53,204 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 01:20:53,293 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:20:53,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:53,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:20:53,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:53,332 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 01:20:53,332 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:20:53,374 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-21 01:20:53,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:53,601 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 01:20:53,689 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:53,692 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:53,693 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:53,695 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:20:53,695 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:53,696 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:20:53,697 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:53,698 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:53,699 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:53,700 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:53,701 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:53,702 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:53,703 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:53,729 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:53,810 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 55 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-21 01:20:53,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1596958526] [2020-07-21 01:20:53,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:53,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:20:53,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997968241] [2020-07-21 01:20:53,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:20:53,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:53,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:20:53,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:20:53,813 INFO L87 Difference]: Start difference. First operand 1718 states and 2285 transitions. Second operand 7 states. [2020-07-21 01:20:55,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:55,086 INFO L93 Difference]: Finished difference Result 3811 states and 5172 transitions. [2020-07-21 01:20:55,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:20:55,089 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 145 [2020-07-21 01:20:55,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:55,125 INFO L225 Difference]: With dead ends: 3811 [2020-07-21 01:20:55,125 INFO L226 Difference]: Without dead ends: 2159 [2020-07-21 01:20:55,130 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 288 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 01:20:55,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2159 states. [2020-07-21 01:20:55,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2159 to 1601. [2020-07-21 01:20:55,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1601 states. [2020-07-21 01:20:55,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2101 transitions. [2020-07-21 01:20:55,196 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2101 transitions. Word has length 145 [2020-07-21 01:20:55,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:55,196 INFO L479 AbstractCegarLoop]: Abstraction has 1601 states and 2101 transitions. [2020-07-21 01:20:55,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:20:55,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2101 transitions. [2020-07-21 01:20:55,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-07-21 01:20:55,201 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:55,201 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:20:55,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:55,416 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:55,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:55,417 INFO L82 PathProgramCache]: Analyzing trace with hash 525568454, now seen corresponding path program 1 times [2020-07-21 01:20:55,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:55,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832227725] [2020-07-21 01:20:55,418 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 01:20:55,521 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:20:55,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:55,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:20:55,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:55,589 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-21 01:20:55,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:55,789 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 01:20:55,833 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:55,833 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:55,835 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:20:55,835 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:55,836 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:55,837 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:55,838 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 2, 1] term [2020-07-21 01:20:55,838 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:55,839 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 01:20:55,839 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:55,840 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:20:55,840 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:55,961 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 61 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-21 01:20:55,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1832227725] [2020-07-21 01:20:55,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:55,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:20:55,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273683957] [2020-07-21 01:20:55,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:20:55,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:55,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:20:55,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:20:55,963 INFO L87 Difference]: Start difference. First operand 1601 states and 2101 transitions. Second operand 7 states. [2020-07-21 01:20:57,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:57,353 INFO L93 Difference]: Finished difference Result 4631 states and 6135 transitions. [2020-07-21 01:20:57,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:20:57,362 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 148 [2020-07-21 01:20:57,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:57,374 INFO L225 Difference]: With dead ends: 4631 [2020-07-21 01:20:57,374 INFO L226 Difference]: Without dead ends: 2542 [2020-07-21 01:20:57,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:20:57,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2020-07-21 01:20:57,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2405. [2020-07-21 01:20:57,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2405 states. [2020-07-21 01:20:57,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 2899 transitions. [2020-07-21 01:20:57,461 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 2899 transitions. Word has length 148 [2020-07-21 01:20:57,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:57,461 INFO L479 AbstractCegarLoop]: Abstraction has 2405 states and 2899 transitions. [2020-07-21 01:20:57,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:20:57,461 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 2899 transitions. [2020-07-21 01:20:57,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-07-21 01:20:57,467 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:57,468 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-07-21 01:20:57,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:57,682 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:57,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:57,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1371538395, now seen corresponding path program 1 times [2020-07-21 01:20:57,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:57,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710571292] [2020-07-21 01:20:57,683 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 01:20:57,771 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:20:57,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:57,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:20:57,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:57,812 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-07-21 01:20:57,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:57,886 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 69 proven. 24 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-07-21 01:20:57,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [710571292] [2020-07-21 01:20:57,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:57,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:20:57,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901743949] [2020-07-21 01:20:57,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:20:57,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:57,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:20:57,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:20:57,888 INFO L87 Difference]: Start difference. First operand 2405 states and 2899 transitions. Second operand 7 states. [2020-07-21 01:20:58,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:58,666 INFO L93 Difference]: Finished difference Result 5743 states and 7099 transitions. [2020-07-21 01:20:58,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:20:58,666 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 158 [2020-07-21 01:20:58,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:58,686 INFO L225 Difference]: With dead ends: 5743 [2020-07-21 01:20:58,686 INFO L226 Difference]: Without dead ends: 3404 [2020-07-21 01:20:58,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 310 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:20:58,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2020-07-21 01:20:58,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 2955. [2020-07-21 01:20:58,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2955 states. [2020-07-21 01:20:58,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2955 states to 2955 states and 3574 transitions. [2020-07-21 01:20:58,809 INFO L78 Accepts]: Start accepts. Automaton has 2955 states and 3574 transitions. Word has length 158 [2020-07-21 01:20:58,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:58,810 INFO L479 AbstractCegarLoop]: Abstraction has 2955 states and 3574 transitions. [2020-07-21 01:20:58,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:20:58,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2955 states and 3574 transitions. [2020-07-21 01:20:58,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-21 01:20:58,821 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:58,821 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:20:59,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:59,036 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:59,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:59,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1629352655, now seen corresponding path program 1 times [2020-07-21 01:20:59,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:59,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411601520] [2020-07-21 01:20:59,038 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 01:20:59,124 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:20:59,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:59,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:20:59,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:59,150 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2020-07-21 01:20:59,150 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:20:59,195 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-07-21 01:20:59,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:59,356 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:59,357 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:59,358 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:59,359 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:59,359 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:59,383 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:59,503 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 75 proven. 32 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-07-21 01:20:59,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411601520] [2020-07-21 01:20:59,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:59,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:20:59,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373318529] [2020-07-21 01:20:59,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:20:59,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:59,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:20:59,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:20:59,506 INFO L87 Difference]: Start difference. First operand 2955 states and 3574 transitions. Second operand 7 states. [2020-07-21 01:21:00,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:21:00,401 INFO L93 Difference]: Finished difference Result 6279 states and 7701 transitions. [2020-07-21 01:21:00,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 01:21:00,402 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2020-07-21 01:21:00,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:21:00,423 INFO L225 Difference]: With dead ends: 6279 [2020-07-21 01:21:00,423 INFO L226 Difference]: Without dead ends: 3390 [2020-07-21 01:21:00,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 324 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 01:21:00,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2020-07-21 01:21:00,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 3372. [2020-07-21 01:21:00,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3372 states. [2020-07-21 01:21:00,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3372 states to 3372 states and 4030 transitions. [2020-07-21 01:21:00,578 INFO L78 Accepts]: Start accepts. Automaton has 3372 states and 4030 transitions. Word has length 164 [2020-07-21 01:21:00,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:21:00,580 INFO L479 AbstractCegarLoop]: Abstraction has 3372 states and 4030 transitions. [2020-07-21 01:21:00,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:21:00,581 INFO L276 IsEmpty]: Start isEmpty. Operand 3372 states and 4030 transitions. [2020-07-21 01:21:00,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-07-21 01:21:00,594 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:21:00,594 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:00,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:00,809 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:21:00,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:21:00,809 INFO L82 PathProgramCache]: Analyzing trace with hash 801248806, now seen corresponding path program 1 times [2020-07-21 01:21:00,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:21:00,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352147051] [2020-07-21 01:21:00,810 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 01:21:00,962 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:21:00,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:21:00,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:21:00,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:21:01,028 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 118 proven. 2 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-07-21 01:21:01,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:21:01,227 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 01:21:01,306 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:01,306 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:01,307 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:01,308 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 01:21:01,308 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:21:01,309 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:21:01,310 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:01,310 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[6, 2, 1] term [2020-07-21 01:21:01,311 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:01,311 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:21:01,311 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:01,443 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 113 proven. 15 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 01:21:01,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352147051] [2020-07-21 01:21:01,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:21:01,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:21:01,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452311021] [2020-07-21 01:21:01,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:21:01,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:21:01,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:21:01,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:21:01,445 INFO L87 Difference]: Start difference. First operand 3372 states and 4030 transitions. Second operand 7 states. [2020-07-21 01:21:02,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:21:02,686 INFO L93 Difference]: Finished difference Result 5477 states and 6566 transitions. [2020-07-21 01:21:02,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:21:02,687 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2020-07-21 01:21:02,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:21:02,701 INFO L225 Difference]: With dead ends: 5477 [2020-07-21 01:21:02,701 INFO L226 Difference]: Without dead ends: 3384 [2020-07-21 01:21:02,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 389 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 01:21:02,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3384 states. [2020-07-21 01:21:02,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3384 to 2161. [2020-07-21 01:21:02,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2161 states. [2020-07-21 01:21:02,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 2520 transitions. [2020-07-21 01:21:02,773 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 2520 transitions. Word has length 196 [2020-07-21 01:21:02,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:21:02,773 INFO L479 AbstractCegarLoop]: Abstraction has 2161 states and 2520 transitions. [2020-07-21 01:21:02,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:21:02,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 2520 transitions. [2020-07-21 01:21:02,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-07-21 01:21:02,785 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:21:02,785 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2020-07-21 01:21:03,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:03,001 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:21:03,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:21:03,001 INFO L82 PathProgramCache]: Analyzing trace with hash 740758918, now seen corresponding path program 1 times [2020-07-21 01:21:03,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:21:03,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42826236] [2020-07-21 01:21:03,003 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:03,143 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:21:03,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:21:03,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:21:03,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:21:03,241 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 54 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-21 01:21:03,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:21:03,344 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-21 01:21:03,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42826236] [2020-07-21 01:21:03,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:21:03,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-21 01:21:03,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643232456] [2020-07-21 01:21:03,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:21:03,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:21:03,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:21:03,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:21:03,346 INFO L87 Difference]: Start difference. First operand 2161 states and 2520 transitions. Second operand 5 states. [2020-07-21 01:21:03,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:21:03,960 INFO L93 Difference]: Finished difference Result 4548 states and 5386 transitions. [2020-07-21 01:21:03,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 01:21:03,961 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 207 [2020-07-21 01:21:03,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:21:03,964 INFO L225 Difference]: With dead ends: 4548 [2020-07-21 01:21:03,964 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:21:03,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 408 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:21:03,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:21:03,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:21:03,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:21:03,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:21:03,975 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2020-07-21 01:21:03,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:21:03,975 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:21:03,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:21:03,976 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:21:03,976 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:21:04,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:04,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:21:04,828 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 184 [2020-07-21 01:21:05,064 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 174 [2020-07-21 01:21:06,422 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 220 DAG size of output: 99 [2020-07-21 01:21:07,275 WARN L193 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 59 [2020-07-21 01:21:08,080 WARN L193 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 59 [2020-07-21 01:21:08,083 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:21:08,083 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (<= |old(~a16~0)| ~a16~0) (<= |old(~a8~0)| ~a8~0) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 01:21:08,084 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:21:08,084 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 01:21:08,084 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 01:21:08,084 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,084 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,084 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,085 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,085 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,085 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,085 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 01:21:08,085 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 01:21:08,085 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 01:21:08,085 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 01:21:08,086 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 01:21:08,086 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 01:21:08,086 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 01:21:08,086 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 01:21:08,086 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 01:21:08,086 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 01:21:08,086 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,086 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,086 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,086 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,086 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,086 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,086 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 01:21:08,087 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 01:21:08,087 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 01:21:08,087 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 01:21:08,087 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 01:21:08,087 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 01:21:08,087 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 01:21:08,087 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 01:21:08,087 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 01:21:08,087 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 01:21:08,087 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 01:21:08,087 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 431) no Hoare annotation was computed. [2020-07-21 01:21:08,087 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 01:21:08,088 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 01:21:08,088 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 01:21:08,088 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 01:21:08,088 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,088 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,088 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,088 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,088 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,088 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 01:21:08,088 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 01:21:08,089 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 01:21:08,089 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 01:21:08,089 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 01:21:08,089 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 01:21:08,089 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 01:21:08,089 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 01:21:08,089 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 01:21:08,089 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,089 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,089 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,089 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,089 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,089 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 01:21:08,090 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 01:21:08,090 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 01:21:08,090 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 01:21:08,090 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 01:21:08,090 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 01:21:08,090 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 01:21:08,090 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 01:21:08,090 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 01:21:08,091 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 01:21:08,091 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 01:21:08,091 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 01:21:08,091 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 01:21:08,091 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,091 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,091 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,091 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,091 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,092 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 01:21:08,092 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 01:21:08,092 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 01:21:08,092 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 01:21:08,092 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 01:21:08,092 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 01:21:08,092 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 01:21:08,092 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 01:21:08,092 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 01:21:08,092 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,093 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,093 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,093 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,093 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,093 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,093 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 01:21:08,093 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,093 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 01:21:08,093 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 01:21:08,093 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 01:21:08,093 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 01:21:08,093 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 01:21:08,093 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 01:21:08,093 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 01:21:08,094 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 01:21:08,094 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 01:21:08,094 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 01:21:08,094 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 01:21:08,094 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 01:21:08,094 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 01:21:08,094 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,094 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,094 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,094 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,094 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,094 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 01:21:08,094 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 01:21:08,095 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 01:21:08,095 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 01:21:08,095 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 01:21:08,095 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 01:21:08,095 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 01:21:08,095 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 01:21:08,095 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,095 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,095 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,095 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,095 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,096 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 01:21:08,096 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 01:21:08,096 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 01:21:08,096 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 01:21:08,096 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 01:21:08,096 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 01:21:08,096 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 01:21:08,096 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 01:21:08,096 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 01:21:08,096 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 01:21:08,097 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse20 (= 1 |old(~a21~0)|)) (.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse16 (<= ~a16~0 |old(~a16~0)|)) (.cse17 (= ~a7~0 |old(~a7~0)|)) (.cse18 (<= |old(~a16~0)| ~a16~0)) (.cse3 (<= |old(~a8~0)| ~a8~0)) (.cse19 (= ~a20~0 |old(~a20~0)|)) (.cse10 (= ~a21~0 |old(~a21~0)|))) (let ((.cse1 (= 1 ~a7~0)) (.cse0 (not (= 1 |old(~a7~0)|))) (.cse8 (<= 5 ~a16~0)) (.cse4 (= 1 ~a21~0)) (.cse5 (not (< 13 |old(~a8~0)|))) (.cse12 (and .cse16 .cse17 .cse18 .cse3 (= 1 ~a17~0) .cse19 .cse10)) (.cse14 (and .cse16 .cse17 .cse2 .cse18 .cse3 .cse19 .cse10)) (.cse15 (not (<= |old(~a17~0)| 0))) (.cse7 (not (= 1 |old(~a20~0)|))) (.cse13 (not (<= |old(~a16~0)| 5))) (.cse11 (not (= 1 |old(~a17~0)|))) (.cse9 (not (<= 5 |old(~a16~0)|))) (.cse6 (not .cse20))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4) .cse5 .cse6) (or .cse7 .cse0 .cse8 .cse9 .cse6) (or (and .cse1 .cse2 .cse3 (= 1 ~a20~0) .cse10) .cse7 .cse0 .cse6) (or .cse0 .cse8 .cse5 .cse9 .cse6) (or .cse7 .cse11 .cse9 .cse12) (or .cse13 .cse14 .cse15) (or (and .cse16 .cse17 .cse2 .cse18 .cse3 .cse4 .cse19) .cse5 .cse9 .cse6 .cse15) (or .cse13 .cse14 .cse20) (or .cse7 .cse13 .cse14) (or (not (<= 15 |old(~a8~0)|)) .cse11 .cse12 .cse6) (or .cse7 .cse14 .cse9 .cse15) (or .cse7 (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) .cse13 .cse11 (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|))) .cse9 .cse6 (= 15 ~a8~0) (not (= 8 ~a12~0)))))) [2020-07-21 01:21:08,097 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 01:21:08,097 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,097 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,097 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,097 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,097 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 01:21:08,098 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,098 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,098 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 01:21:08,098 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 01:21:08,098 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 01:21:08,098 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 01:21:08,098 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 01:21:08,098 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 01:21:08,098 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 01:21:08,099 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 01:21:08,099 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 01:21:08,099 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 01:21:08,099 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 01:21:08,099 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 01:21:08,099 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,099 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,099 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,099 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,099 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,100 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 01:21:08,100 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,100 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 01:21:08,100 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 01:21:08,100 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 01:21:08,100 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 01:21:08,100 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 01:21:08,100 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 01:21:08,100 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 01:21:08,101 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 01:21:08,101 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 01:21:08,101 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 01:21:08,101 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 01:21:08,101 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 01:21:08,101 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 01:21:08,101 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 01:21:08,101 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,101 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,101 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,101 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,101 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,101 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:21:08,101 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 01:21:08,101 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 01:21:08,102 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 01:21:08,102 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 01:21:08,102 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 01:21:08,102 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 01:21:08,102 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 01:21:08,102 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 01:21:08,102 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 01:21:08,102 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 01:21:08,102 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:21:08,102 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 01:21:08,102 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:21:08,102 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:21:08,103 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 (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0))) [2020-07-21 01:21:08,103 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 01:21:08,103 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse2 (not (= 1 |old(~a7~0)|))) (.cse4 (<= 5 ~a16~0)) (.cse5 (= 1 ~a17~0)) (.cse1 (= 1 ~a20~0)) (.cse0 (<= ~a16~0 5)) (.cse3 (<= ~a17~0 0)) (.cse7 (= 1 ~a7~0)) (.cse8 (< 13 ~a8~0)) (.cse6 (= 1 ~a21~0))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse1) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (and (<= 15 ~a8~0) .cse5 .cse6) (and .cse0 (not .cse6)) (not (= 1 |old(~a17~0)|)) (and .cse2 .cse4 .cse5 .cse1) (not (<= 5 |old(~a16~0)|)) (and .cse7 .cse6 .cse1) (and .cse3 .cse0) (not (= 1 |old(~a20~0)|)) (and .cse3 .cse8 .cse6) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (and .cse7 .cse8 .cse6))) [2020-07-21 01:21:08,103 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 01:21:08,103 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 01:21:08,103 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (not (= 1 |old(~a7~0)|))) (.cse4 (<= 5 ~a16~0)) (.cse5 (= 1 ~a17~0)) (.cse1 (= 1 ~a20~0)) (.cse0 (<= ~a16~0 5)) (.cse3 (<= ~a17~0 0)) (.cse7 (= 1 ~a7~0)) (.cse8 (< 13 ~a8~0)) (.cse6 (= 1 ~a21~0))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse1) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (and (<= 15 ~a8~0) .cse5 .cse6) (and .cse0 (not .cse6)) (not (= 1 |old(~a17~0)|)) (and .cse2 .cse4 .cse5 .cse1) (not (<= 5 |old(~a16~0)|)) (and .cse7 .cse6 .cse1) (and .cse3 .cse0) (not (= 1 |old(~a20~0)|)) (and .cse3 .cse8 .cse6) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (and .cse7 .cse8 .cse6))) [2020-07-21 01:21:08,103 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 01:21:08,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:21:08 BoogieIcfgContainer [2020-07-21 01:21:08,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:21:08,131 INFO L168 Benchmark]: Toolchain (without parser) took 25772.35 ms. Allocated memory was 145.2 MB in the beginning and 510.1 MB in the end (delta: 364.9 MB). Free memory was 100.0 MB in the beginning and 293.3 MB in the end (delta: -193.2 MB). Peak memory consumption was 386.4 MB. Max. memory is 7.1 GB. [2020-07-21 01:21:08,132 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 01:21:08,133 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.78 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 99.6 MB in the beginning and 170.9 MB in the end (delta: -71.2 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-07-21 01:21:08,134 INFO L168 Benchmark]: Boogie Preprocessor took 98.11 ms. Allocated memory is still 205.5 MB. Free memory was 170.9 MB in the beginning and 166.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:21:08,134 INFO L168 Benchmark]: RCFGBuilder took 1333.14 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 166.0 MB in the beginning and 181.0 MB in the end (delta: -15.1 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:21:08,135 INFO L168 Benchmark]: TraceAbstraction took 23644.10 ms. Allocated memory was 238.6 MB in the beginning and 510.1 MB in the end (delta: 271.6 MB). Free memory was 179.5 MB in the beginning and 293.3 MB in the end (delta: -113.7 MB). Peak memory consumption was 372.5 MB. Max. memory is 7.1 GB. [2020-07-21 01:21:08,139 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 689.78 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 99.6 MB in the beginning and 170.9 MB in the end (delta: -71.2 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.11 ms. Allocated memory is still 205.5 MB. Free memory was 170.9 MB in the beginning and 166.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1333.14 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 166.0 MB in the beginning and 181.0 MB in the end (delta: -15.1 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23644.10 ms. Allocated memory was 238.6 MB in the beginning and 510.1 MB in the end (delta: 271.6 MB). Free memory was 179.5 MB in the beginning and 293.3 MB in the end (delta: -113.7 MB). Peak memory consumption was 372.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 431]: 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: ((((((((((((((((a16 <= 5 && 1 == a20) || (((!(1 == \old(a7)) && a17 <= 0) && 5 <= a16) && 1 == a20)) || !(15 == \old(a8))) || !(\old(a7) <= 0)) || ((15 <= a8 && 1 == a17) && 1 == a21)) || (a16 <= 5 && !(1 == a21))) || !(1 == \old(a17))) || (((!(1 == \old(a7)) && 5 <= a16) && 1 == a17) && 1 == a20)) || !(5 <= \old(a16))) || ((1 == a7 && 1 == a21) && 1 == a20)) || (a17 <= 0 && a16 <= 5)) || !(1 == \old(a20))) || ((a17 <= 0 && 13 < a8) && 1 == a21)) || !(\old(a16) <= 5)) || !(1 == \old(a21))) || !(8 == a12)) || ((1 == a7 && 13 < a8) && 1 == a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.6s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 563 SDtfs, 4837 SDslu, 435 SDs, 0 SdLazy, 8099 SolverSat, 1143 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2882 GetRequests, 2794 SyntacticMatches, 8 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3372occurred 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: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 2715 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 143 PreInvPairs, 197 NumberOfFragments, 736 HoareAnnotationTreeSize, 143 FomulaSimplifications, 16496 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 11071 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 1567 NumberOfCodeBlocks, 860 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 2823 ConstructedInterpolants, 0 QuantifiedInterpolants, 1248784 SizeOfPredicates, 45 NumberOfNonLiveVariables, 3756 ConjunctsInSsa, 146 ConjunctsInUnsatCore, 19 InterpolantComputations, 3 PerfectInterpolantSequences, 1512/1687 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...