/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/Problem02_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:24:11,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 01:24:11,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 01:24:11,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 01:24:11,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 01:24:11,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 01:24:11,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 01:24:11,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 01:24:11,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 01:24:11,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 01:24:11,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 01:24:11,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 01:24:11,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:24:11,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:24:11,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:24:11,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:24:11,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:24:11,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:24:11,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:24:11,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:24:11,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:24:11,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:24:11,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:24:11,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:24:11,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:24:11,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:24:11,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:24:11,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:24:11,656 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 01:24:11,671 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:24:11,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:24:11,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:24:11,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:24:11,673 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:24:11,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:24:11,673 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:24:11,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:24:11,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:24:11,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:24:11,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:24:11,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:24:11,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:24:11,674 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:24:11,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:24:11,675 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:24:11,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:24:11,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:24:11,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:24:11,676 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:24:11,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:24:11,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:24:11,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:24:11,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:24:11,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:24:11,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:24:11,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:11,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:24:11,677 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:24:11,678 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 01:24:11,949 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:24:11,962 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:24:11,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:24:11,969 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:24:11,971 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:24:11,973 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-21 01:24:12,049 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74da77d80/e33dde7455b24643b54e6ffbda005237/FLAG599ca20c2 [2020-07-21 01:24:12,656 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:24:12,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-21 01:24:12,669 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74da77d80/e33dde7455b24643b54e6ffbda005237/FLAG599ca20c2 [2020-07-21 01:24:12,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74da77d80/e33dde7455b24643b54e6ffbda005237 [2020-07-21 01:24:12,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:24:12,916 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:24:12,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:24:12,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:24:12,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:24:12,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:24:12" (1/1) ... [2020-07-21 01:24:12,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a1aa79a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:12, skipping insertion in model container [2020-07-21 01:24:12,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:24:12" (1/1) ... [2020-07-21 01:24:12,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:24:12,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:24:13,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:24:13,375 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:24:13,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:24:13,598 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:24:13,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:13 WrapperNode [2020-07-21 01:24:13,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:24:13,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:24:13,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:24:13,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:24:13,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:13" (1/1) ... [2020-07-21 01:24:13,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:13" (1/1) ... [2020-07-21 01:24:13,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:13" (1/1) ... [2020-07-21 01:24:13,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:13" (1/1) ... [2020-07-21 01:24:13,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:13" (1/1) ... [2020-07-21 01:24:13,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:13" (1/1) ... [2020-07-21 01:24:13,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:13" (1/1) ... [2020-07-21 01:24:13,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:24:13,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:24:13,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:24:13,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:24:13,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:13" (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 01:24:13,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:24:13,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:24:13,783 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:24:13,784 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:24:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:24:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:24:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:24:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:24:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:24:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:24:13,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:24:14,948 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:24:14,948 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:24:14,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:24:14 BoogieIcfgContainer [2020-07-21 01:24:14,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:24:14,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:24:14,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:24:14,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:24:14,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:24:12" (1/3) ... [2020-07-21 01:24:14,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56bfc77b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:24:14, skipping insertion in model container [2020-07-21 01:24:14,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:13" (2/3) ... [2020-07-21 01:24:14,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56bfc77b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:24:14, skipping insertion in model container [2020-07-21 01:24:14,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:24:14" (3/3) ... [2020-07-21 01:24:14,963 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2020-07-21 01:24:14,974 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:24:14,982 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:24:14,998 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:24:15,026 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:24:15,027 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:24:15,027 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:24:15,027 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:24:15,028 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:24:15,028 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:24:15,028 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:24:15,028 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:24:15,054 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 01:24:15,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-21 01:24:15,069 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:15,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:24:15,071 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:15,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:15,077 INFO L82 PathProgramCache]: Analyzing trace with hash 797442718, now seen corresponding path program 1 times [2020-07-21 01:24:15,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:15,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418125199] [2020-07-21 01:24:15,087 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 01:24:15,268 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:24:15,268 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:15,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 01:24:15,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:15,771 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:24:15,775 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:24:15,776 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:24:15,860 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 01:24:15,861 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:15,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418125199] [2020-07-21 01:24:15,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:15,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 01:24:15,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131343617] [2020-07-21 01:24:15,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:24:15,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:15,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:24:15,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:24:15,889 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 01:24:17,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:17,069 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 01:24:17,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:24:17,071 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 98 [2020-07-21 01:24:17,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:17,086 INFO L225 Difference]: With dead ends: 527 [2020-07-21 01:24:17,086 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 01:24:17,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 01:24:17,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 01:24:17,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 01:24:17,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 01:24:17,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 01:24:17,155 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 98 [2020-07-21 01:24:17,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:17,155 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 01:24:17,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:24:17,156 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 01:24:17,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-07-21 01:24:17,161 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:17,161 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:24:17,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:17,375 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:17,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:17,376 INFO L82 PathProgramCache]: Analyzing trace with hash -58176689, now seen corresponding path program 1 times [2020-07-21 01:24:17,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:17,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446239910] [2020-07-21 01:24:17,378 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 01:24:17,467 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:24:17,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:17,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 01:24:17,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:17,967 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:17,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:18,384 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:24:18,386 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:24:18,387 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:24:18,388 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:24:18,390 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:24:18,409 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 01:24:18,410 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:24:18,446 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:24:18,526 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:24:18,635 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:18,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [446239910] [2020-07-21 01:24:18,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:18,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:24:18,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054156396] [2020-07-21 01:24:18,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:24:18,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:18,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:24:18,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:24:18,639 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 01:24:19,727 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:24:20,809 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 01:24:21,031 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-07-21 01:24:22,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:22,296 INFO L93 Difference]: Finished difference Result 740 states and 1084 transitions. [2020-07-21 01:24:22,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 01:24:22,296 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 107 [2020-07-21 01:24:22,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:22,303 INFO L225 Difference]: With dead ends: 740 [2020-07-21 01:24:22,303 INFO L226 Difference]: Without dead ends: 425 [2020-07-21 01:24:22,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 191 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 01:24:22,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-07-21 01:24:22,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 393. [2020-07-21 01:24:22,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 01:24:22,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 534 transitions. [2020-07-21 01:24:22,343 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 534 transitions. Word has length 107 [2020-07-21 01:24:22,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:22,343 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 534 transitions. [2020-07-21 01:24:22,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:24:22,344 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 534 transitions. [2020-07-21 01:24:22,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-21 01:24:22,351 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:22,351 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:24:22,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:22,565 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:22,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:22,566 INFO L82 PathProgramCache]: Analyzing trace with hash -709344313, now seen corresponding path program 1 times [2020-07-21 01:24:22,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:22,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1680484559] [2020-07-21 01:24:22,566 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 01:24:22,669 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:24:22,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:22,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:22,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:22,720 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:22,721 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:22,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1680484559] [2020-07-21 01:24:22,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:22,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:24:22,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135900300] [2020-07-21 01:24:22,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:24:22,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:22,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:24:22,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:24:22,727 INFO L87 Difference]: Start difference. First operand 393 states and 534 transitions. Second operand 3 states. [2020-07-21 01:24:23,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:23,351 INFO L93 Difference]: Finished difference Result 1075 states and 1497 transitions. [2020-07-21 01:24:23,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:24:23,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-07-21 01:24:23,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:23,358 INFO L225 Difference]: With dead ends: 1075 [2020-07-21 01:24:23,358 INFO L226 Difference]: Without dead ends: 688 [2020-07-21 01:24:23,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 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 01:24:23,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-07-21 01:24:23,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 684. [2020-07-21 01:24:23,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2020-07-21 01:24:23,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 860 transitions. [2020-07-21 01:24:23,393 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 860 transitions. Word has length 111 [2020-07-21 01:24:23,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:23,393 INFO L479 AbstractCegarLoop]: Abstraction has 684 states and 860 transitions. [2020-07-21 01:24:23,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:24:23,394 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 860 transitions. [2020-07-21 01:24:23,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 01:24:23,398 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:23,398 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:24:23,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:23,614 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:23,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:23,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1004016671, now seen corresponding path program 1 times [2020-07-21 01:24:23,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:23,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697956534] [2020-07-21 01:24:23,616 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 01:24:23,713 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:24:23,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:23,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:23,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:23,755 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:24:23,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:23,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697956534] [2020-07-21 01:24:23,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:23,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:24:23,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903912150] [2020-07-21 01:24:23,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:24:23,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:23,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:24:23,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:24:23,758 INFO L87 Difference]: Start difference. First operand 684 states and 860 transitions. Second operand 3 states. [2020-07-21 01:24:24,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:24,402 INFO L93 Difference]: Finished difference Result 1658 states and 2156 transitions. [2020-07-21 01:24:24,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:24:24,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-21 01:24:24,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:24,408 INFO L225 Difference]: With dead ends: 1658 [2020-07-21 01:24:24,409 INFO L226 Difference]: Without dead ends: 980 [2020-07-21 01:24:24,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:24:24,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2020-07-21 01:24:24,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 980. [2020-07-21 01:24:24,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 980 states. [2020-07-21 01:24:24,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1212 transitions. [2020-07-21 01:24:24,447 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1212 transitions. Word has length 133 [2020-07-21 01:24:24,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:24,447 INFO L479 AbstractCegarLoop]: Abstraction has 980 states and 1212 transitions. [2020-07-21 01:24:24,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:24:24,448 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1212 transitions. [2020-07-21 01:24:24,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-21 01:24:24,451 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:24,452 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:24,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:24,667 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:24,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:24,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1995644190, now seen corresponding path program 1 times [2020-07-21 01:24:24,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:24,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [558679421] [2020-07-21 01:24:24,669 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 01:24:24,762 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:24:24,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:24,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:24,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:24,809 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:24,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:24,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [558679421] [2020-07-21 01:24:24,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:24,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:24:24,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926779372] [2020-07-21 01:24:24,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:24:24,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:24,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:24:24,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:24:24,814 INFO L87 Difference]: Start difference. First operand 980 states and 1212 transitions. Second operand 3 states. [2020-07-21 01:24:25,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:25,434 INFO L93 Difference]: Finished difference Result 2248 states and 2875 transitions. [2020-07-21 01:24:25,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:24:25,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-07-21 01:24:25,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:25,445 INFO L225 Difference]: With dead ends: 2248 [2020-07-21 01:24:25,446 INFO L226 Difference]: Without dead ends: 1274 [2020-07-21 01:24:25,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 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 01:24:25,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2020-07-21 01:24:25,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1272. [2020-07-21 01:24:25,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1272 states. [2020-07-21 01:24:25,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1613 transitions. [2020-07-21 01:24:25,495 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1613 transitions. Word has length 132 [2020-07-21 01:24:25,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:25,496 INFO L479 AbstractCegarLoop]: Abstraction has 1272 states and 1613 transitions. [2020-07-21 01:24:25,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:24:25,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1613 transitions. [2020-07-21 01:24:25,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-21 01:24:25,500 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:25,500 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:25,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:25,715 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:25,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:25,715 INFO L82 PathProgramCache]: Analyzing trace with hash -2045981677, now seen corresponding path program 1 times [2020-07-21 01:24:25,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:25,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691083962] [2020-07-21 01:24:25,716 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 01:24:25,798 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:25,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:25,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:24:25,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:25,843 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:25,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:25,903 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:25,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691083962] [2020-07-21 01:24:25,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:25,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:24:25,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681339389] [2020-07-21 01:24:25,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:24:25,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:25,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:24:25,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:24:25,906 INFO L87 Difference]: Start difference. First operand 1272 states and 1613 transitions. Second operand 7 states. [2020-07-21 01:24:27,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:27,241 INFO L93 Difference]: Finished difference Result 4698 states and 6235 transitions. [2020-07-21 01:24:27,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:24:27,241 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2020-07-21 01:24:27,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:27,259 INFO L225 Difference]: With dead ends: 4698 [2020-07-21 01:24:27,259 INFO L226 Difference]: Without dead ends: 3432 [2020-07-21 01:24:27,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 274 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 01:24:27,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2020-07-21 01:24:27,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 3428. [2020-07-21 01:24:27,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3428 states. [2020-07-21 01:24:27,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 4376 transitions. [2020-07-21 01:24:27,361 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 4376 transitions. Word has length 139 [2020-07-21 01:24:27,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:27,361 INFO L479 AbstractCegarLoop]: Abstraction has 3428 states and 4376 transitions. [2020-07-21 01:24:27,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:24:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 4376 transitions. [2020-07-21 01:24:27,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-21 01:24:27,369 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:27,369 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:27,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:27,584 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:27,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:27,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1800851888, now seen corresponding path program 1 times [2020-07-21 01:24:27,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:27,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443588450] [2020-07-21 01:24:27,585 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 01:24:27,674 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:27,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:27,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:27,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:27,724 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 01:24:27,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:27,789 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 01:24:27,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443588450] [2020-07-21 01:24:27,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:27,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:24:27,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961294096] [2020-07-21 01:24:27,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:24:27,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:27,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:24:27,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:24:27,791 INFO L87 Difference]: Start difference. First operand 3428 states and 4376 transitions. Second operand 7 states. [2020-07-21 01:24:28,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:28,410 INFO L93 Difference]: Finished difference Result 6820 states and 8923 transitions. [2020-07-21 01:24:28,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 01:24:28,411 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 150 [2020-07-21 01:24:28,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:28,430 INFO L225 Difference]: With dead ends: 6820 [2020-07-21 01:24:28,430 INFO L226 Difference]: Without dead ends: 3401 [2020-07-21 01:24:28,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 294 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 01:24:28,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2020-07-21 01:24:28,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 3367. [2020-07-21 01:24:28,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3367 states. [2020-07-21 01:24:28,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3367 states to 3367 states and 4237 transitions. [2020-07-21 01:24:28,547 INFO L78 Accepts]: Start accepts. Automaton has 3367 states and 4237 transitions. Word has length 150 [2020-07-21 01:24:28,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:28,547 INFO L479 AbstractCegarLoop]: Abstraction has 3367 states and 4237 transitions. [2020-07-21 01:24:28,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:24:28,548 INFO L276 IsEmpty]: Start isEmpty. Operand 3367 states and 4237 transitions. [2020-07-21 01:24:28,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 01:24:28,554 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:28,554 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:28,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:28,770 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:28,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:28,770 INFO L82 PathProgramCache]: Analyzing trace with hash -993234497, now seen corresponding path program 1 times [2020-07-21 01:24:28,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:28,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408849839] [2020-07-21 01:24:28,771 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 01:24:28,856 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:28,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:28,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:24:28,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:28,896 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:28,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:28,955 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:28,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1408849839] [2020-07-21 01:24:28,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:28,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:24:28,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738797942] [2020-07-21 01:24:28,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:24:28,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:28,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:24:28,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:24:28,958 INFO L87 Difference]: Start difference. First operand 3367 states and 4237 transitions. Second operand 7 states. [2020-07-21 01:24:29,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:29,838 INFO L93 Difference]: Finished difference Result 8092 states and 10625 transitions. [2020-07-21 01:24:29,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:24:29,839 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 149 [2020-07-21 01:24:29,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:29,873 INFO L225 Difference]: With dead ends: 8092 [2020-07-21 01:24:29,873 INFO L226 Difference]: Without dead ends: 4785 [2020-07-21 01:24:29,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 293 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 01:24:29,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4785 states. [2020-07-21 01:24:30,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4785 to 4733. [2020-07-21 01:24:30,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4733 states. [2020-07-21 01:24:30,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4733 states to 4733 states and 5854 transitions. [2020-07-21 01:24:30,155 INFO L78 Accepts]: Start accepts. Automaton has 4733 states and 5854 transitions. Word has length 149 [2020-07-21 01:24:30,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:30,155 INFO L479 AbstractCegarLoop]: Abstraction has 4733 states and 5854 transitions. [2020-07-21 01:24:30,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:24:30,156 INFO L276 IsEmpty]: Start isEmpty. Operand 4733 states and 5854 transitions. [2020-07-21 01:24:30,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-21 01:24:30,167 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:30,167 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:24:30,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:30,377 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:30,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:30,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1405152924, now seen corresponding path program 1 times [2020-07-21 01:24:30,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:30,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [927463468] [2020-07-21 01:24:30,379 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 01:24:30,535 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:30,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:30,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:30,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:30,604 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:24:30,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:30,724 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:24:30,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [927463468] [2020-07-21 01:24:30,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:30,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:24:30,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304122422] [2020-07-21 01:24:30,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:24:30,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:30,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:24:30,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:24:30,728 INFO L87 Difference]: Start difference. First operand 4733 states and 5854 transitions. Second operand 7 states. [2020-07-21 01:24:32,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:32,004 INFO L93 Difference]: Finished difference Result 8348 states and 10321 transitions. [2020-07-21 01:24:32,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:24:32,005 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-07-21 01:24:32,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:32,032 INFO L225 Difference]: With dead ends: 8348 [2020-07-21 01:24:32,033 INFO L226 Difference]: Without dead ends: 4559 [2020-07-21 01:24:32,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 301 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:24:32,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4559 states. [2020-07-21 01:24:32,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4559 to 4559. [2020-07-21 01:24:32,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4559 states. [2020-07-21 01:24:32,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4559 states to 4559 states and 5459 transitions. [2020-07-21 01:24:32,297 INFO L78 Accepts]: Start accepts. Automaton has 4559 states and 5459 transitions. Word has length 153 [2020-07-21 01:24:32,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:32,297 INFO L479 AbstractCegarLoop]: Abstraction has 4559 states and 5459 transitions. [2020-07-21 01:24:32,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:24:32,298 INFO L276 IsEmpty]: Start isEmpty. Operand 4559 states and 5459 transitions. [2020-07-21 01:24:32,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-07-21 01:24:32,311 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:32,311 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:24:32,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:32,527 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:32,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:32,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1580487806, now seen corresponding path program 1 times [2020-07-21 01:24:32,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:32,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991153503] [2020-07-21 01:24:32,529 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 01:24:32,681 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:32,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:32,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:32,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:32,753 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:32,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:32,854 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:32,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991153503] [2020-07-21 01:24:32,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:32,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:24:32,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864250916] [2020-07-21 01:24:32,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:24:32,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:32,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:24:32,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:24:32,858 INFO L87 Difference]: Start difference. First operand 4559 states and 5459 transitions. Second operand 7 states. [2020-07-21 01:24:34,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:34,053 INFO L93 Difference]: Finished difference Result 7152 states and 8545 transitions. [2020-07-21 01:24:34,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:24:34,054 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 184 [2020-07-21 01:24:34,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:34,064 INFO L225 Difference]: With dead ends: 7152 [2020-07-21 01:24:34,064 INFO L226 Difference]: Without dead ends: 2781 [2020-07-21 01:24:34,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 363 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:24:34,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2020-07-21 01:24:34,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 2625. [2020-07-21 01:24:34,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2625 states. [2020-07-21 01:24:34,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 2870 transitions. [2020-07-21 01:24:34,126 INFO L78 Accepts]: Start accepts. Automaton has 2625 states and 2870 transitions. Word has length 184 [2020-07-21 01:24:34,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:34,127 INFO L479 AbstractCegarLoop]: Abstraction has 2625 states and 2870 transitions. [2020-07-21 01:24:34,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:24:34,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2625 states and 2870 transitions. [2020-07-21 01:24:34,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-21 01:24:34,134 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:34,134 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:34,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:34,336 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:34,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:34,336 INFO L82 PathProgramCache]: Analyzing trace with hash 511642924, now seen corresponding path program 1 times [2020-07-21 01:24:34,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:34,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182797809] [2020-07-21 01:24:34,337 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 01:24:34,445 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:34,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:34,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 01:24:34,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:34,485 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-07-21 01:24:34,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:34,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182797809] [2020-07-21 01:24:34,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:34,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:24:34,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609029662] [2020-07-21 01:24:34,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:24:34,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:34,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:24:34,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:24:34,487 INFO L87 Difference]: Start difference. First operand 2625 states and 2870 transitions. Second operand 3 states. [2020-07-21 01:24:34,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:34,961 INFO L93 Difference]: Finished difference Result 4413 states and 4820 transitions. [2020-07-21 01:24:34,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:24:34,962 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2020-07-21 01:24:34,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:34,971 INFO L225 Difference]: With dead ends: 4413 [2020-07-21 01:24:34,972 INFO L226 Difference]: Without dead ends: 2736 [2020-07-21 01:24:34,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 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 01:24:34,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2020-07-21 01:24:35,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2448. [2020-07-21 01:24:35,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2448 states. [2020-07-21 01:24:35,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 2633 transitions. [2020-07-21 01:24:35,027 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 2633 transitions. Word has length 229 [2020-07-21 01:24:35,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:35,028 INFO L479 AbstractCegarLoop]: Abstraction has 2448 states and 2633 transitions. [2020-07-21 01:24:35,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:24:35,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 2633 transitions. [2020-07-21 01:24:35,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-21 01:24:35,036 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:35,036 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-07-21 01:24:35,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:35,250 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:35,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:35,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1962742350, now seen corresponding path program 1 times [2020-07-21 01:24:35,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:35,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438510278] [2020-07-21 01:24:35,251 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:35,386 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:24:35,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:35,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-21 01:24:35,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:35,460 INFO L501 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-07-21 01:24:35,462 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:24:35,644 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 219 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-21 01:24:35,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:35,770 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:24:35,774 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:24:35,948 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 219 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-21 01:24:35,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438510278] [2020-07-21 01:24:35,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:35,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 11 [2020-07-21 01:24:35,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992848868] [2020-07-21 01:24:35,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 01:24:35,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:35,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 01:24:35,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:24:35,951 INFO L87 Difference]: Start difference. First operand 2448 states and 2633 transitions. Second operand 11 states. [2020-07-21 01:24:37,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:37,121 INFO L93 Difference]: Finished difference Result 4252 states and 4569 transitions. [2020-07-21 01:24:37,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-21 01:24:37,122 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 240 [2020-07-21 01:24:37,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:37,139 INFO L225 Difference]: With dead ends: 4252 [2020-07-21 01:24:37,140 INFO L226 Difference]: Without dead ends: 2306 [2020-07-21 01:24:37,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-07-21 01:24:37,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2020-07-21 01:24:37,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 2300. [2020-07-21 01:24:37,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2300 states. [2020-07-21 01:24:37,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2300 states to 2300 states and 2468 transitions. [2020-07-21 01:24:37,198 INFO L78 Accepts]: Start accepts. Automaton has 2300 states and 2468 transitions. Word has length 240 [2020-07-21 01:24:37,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:37,199 INFO L479 AbstractCegarLoop]: Abstraction has 2300 states and 2468 transitions. [2020-07-21 01:24:37,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 01:24:37,199 INFO L276 IsEmpty]: Start isEmpty. Operand 2300 states and 2468 transitions. [2020-07-21 01:24:37,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-07-21 01:24:37,205 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:37,206 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 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 01:24:37,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:37,419 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:37,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:37,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1290735422, now seen corresponding path program 1 times [2020-07-21 01:24:37,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:37,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [263584906] [2020-07-21 01:24:37,420 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:37,555 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:24:37,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:37,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:24:37,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:37,602 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-07-21 01:24:37,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:37,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [263584906] [2020-07-21 01:24:37,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:37,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:24:37,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025390106] [2020-07-21 01:24:37,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:24:37,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:37,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:24:37,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:24:37,605 INFO L87 Difference]: Start difference. First operand 2300 states and 2468 transitions. Second operand 3 states. [2020-07-21 01:24:38,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:38,029 INFO L93 Difference]: Finished difference Result 2882 states and 3093 transitions. [2020-07-21 01:24:38,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:24:38,029 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 252 [2020-07-21 01:24:38,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:38,030 INFO L225 Difference]: With dead ends: 2882 [2020-07-21 01:24:38,030 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:24:38,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 250 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 01:24:38,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:24:38,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:24:38,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:24:38,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:24:38,037 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 252 [2020-07-21 01:24:38,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:38,037 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:24:38,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:24:38,037 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:24:38,037 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:24:38,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:38,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:24:39,668 WARN L193 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 105 [2020-07-21 01:24:40,061 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 53 [2020-07-21 01:24:40,423 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 53 [2020-07-21 01:24:40,427 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:24:40,427 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (let ((.cse0 (not (= 1 ~a21~0)))) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (or (not (= 10 |old(~a28~0)|)) (not (= 1 |old(~a25~0)|)) (= 10 ~a28~0) .cse0) (= ~a19~0 |old(~a19~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) .cse0) (= ~a25~0 |old(~a25~0)|))) [2020-07-21 01:24:40,427 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:24:40,427 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,427 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,427 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,428 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,428 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,428 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 01:24:40,428 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 01:24:40,428 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 01:24:40,429 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 01:24:40,429 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 01:24:40,429 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 01:24:40,429 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 01:24:40,429 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 01:24:40,429 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 01:24:40,429 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 01:24:40,430 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:24:40,430 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:24:40,430 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 01:24:40,430 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,430 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,430 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,430 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,430 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 01:24:40,430 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,430 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 01:24:40,430 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 01:24:40,430 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 01:24:40,431 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 01:24:40,431 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 01:24:40,431 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 01:24:40,431 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 01:24:40,431 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:24:40,431 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:24:40,431 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 01:24:40,431 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 01:24:40,431 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 01:24:40,431 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:24:40,432 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:24:40,432 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 01:24:40,432 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,432 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,432 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,432 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,432 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,432 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 448) no Hoare annotation was computed. [2020-07-21 01:24:40,433 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:24:40,433 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 01:24:40,433 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:24:40,433 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 01:24:40,433 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 01:24:40,433 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 01:24:40,433 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 01:24:40,433 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 01:24:40,433 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 01:24:40,434 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 01:24:40,434 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 01:24:40,434 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,434 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,434 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,434 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,434 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,434 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 01:24:40,434 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 01:24:40,434 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 01:24:40,435 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 01:24:40,435 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 01:24:40,435 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 01:24:40,435 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 01:24:40,435 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 01:24:40,435 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 01:24:40,435 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 01:24:40,435 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 01:24:40,435 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 01:24:40,435 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 01:24:40,435 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,436 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,436 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,436 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,436 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,436 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 01:24:40,436 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 01:24:40,436 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 01:24:40,436 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 01:24:40,436 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 01:24:40,436 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 01:24:40,437 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 01:24:40,437 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 01:24:40,437 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 01:24:40,437 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 01:24:40,437 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 01:24:40,437 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 01:24:40,437 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 01:24:40,437 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:24:40,437 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 01:24:40,437 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:24:40,437 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,437 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,437 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,438 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,438 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 01:24:40,438 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,438 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:24:40,438 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,438 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:24:40,438 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:24:40,438 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:24:40,438 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,438 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,438 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 01:24:40,438 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 01:24:40,438 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 01:24:40,438 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 01:24:40,439 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 01:24:40,439 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 01:24:40,439 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 01:24:40,439 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 01:24:40,439 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 01:24:40,439 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 01:24:40,439 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 01:24:40,439 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,439 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,439 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,439 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,439 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,439 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,440 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 01:24:40,440 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 01:24:40,440 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 01:24:40,440 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 01:24:40,440 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 01:24:40,440 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 01:24:40,440 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 01:24:40,440 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 01:24:40,440 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 01:24:40,440 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 01:24:40,440 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 01:24:40,440 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,440 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,441 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,441 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,441 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,441 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,441 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 01:24:40,441 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 01:24:40,441 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 01:24:40,441 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 01:24:40,441 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 01:24:40,441 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 01:24:40,441 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 01:24:40,441 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 01:24:40,441 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 01:24:40,442 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 01:24:40,442 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 01:24:40,442 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 01:24:40,442 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 01:24:40,442 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 01:24:40,442 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,442 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,442 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,442 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse18 (<= ~a11~0 0)) (.cse19 (< 0 |old(~a11~0)|)) (.cse9 (not (= 1 ~a21~0))) (.cse17 (= 1 |old(~a11~0)|)) (.cse26 (= 1 ~a11~0))) (let ((.cse11 (not (< |old(~a28~0)| 11))) (.cse20 (not .cse26)) (.cse4 (= ~a28~0 |old(~a28~0)|)) (.cse27 (not .cse17)) (.cse22 (not (<= 9 |old(~a28~0)|))) (.cse21 (not (<= |old(~a28~0)| 9))) (.cse1 (<= ~a17~0 8)) (.cse2 (<= 8 ~a17~0)) (.cse24 (<= 9 ~a28~0)) (.cse5 (= 1 ~a25~0)) (.cse6 (not (<= 8 |old(~a17~0)|))) (.cse7 (not (= 1 |old(~a25~0)|))) (.cse8 (not (<= |old(~a17~0)| 8))) (.cse12 (not (= 1 |old(~a19~0)|))) (.cse0 (<= ~a11~0 |old(~a11~0)|)) (.cse10 (not (<= |old(~a11~0)| 0))) (.cse25 (not (<= |old(~a17~0)| 7))) (.cse16 (not (<= 10 |old(~a28~0)|))) (.cse23 (<= ~a17~0 |old(~a17~0)|)) (.cse13 (<= 10 ~a28~0)) (.cse3 (= ~a19~0 |old(~a19~0)|)) (.cse14 (or .cse18 .cse19 .cse9)) (.cse15 (= ~a25~0 |old(~a25~0)|))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (or .cse12 (and .cse1 .cse2 (< ~a28~0 11) .cse13 .cse3 .cse14 .cse15) .cse6 .cse16 .cse8 .cse11) (or .cse12 .cse17 .cse6 .cse7 (not (<= 11 |old(~a28~0)|)) .cse9 .cse8 (and .cse1 (or .cse18 .cse19) .cse2 .cse20 .cse3 .cse4 .cse5)) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse15) .cse21 .cse6 .cse8 .cse9 .cse10) (or .cse22 (and .cse23 .cse3 .cse14 .cse24 .cse5) .cse7 .cse25) (or .cse12 .cse22 .cse17 .cse21 .cse6 .cse7 .cse20 .cse8) (or .cse21 .cse6 .cse9 .cse8 (and .cse26 .cse1 .cse2 .cse3 .cse4 .cse15) .cse27) (or .cse12 .cse21 .cse7 (and .cse23 .cse26 .cse3 .cse4 .cse5) .cse8 .cse9 .cse27) (or .cse12 .cse22 .cse21 (and .cse1 .cse2 (<= ~a28~0 9) .cse3 .cse24 .cse5) .cse6 .cse7 .cse8) (or .cse12 .cse0 (not (= 10 |old(~a28~0)|)) (not (= 8 |old(~a17~0)|)) (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|))) .cse9 .cse10) (or .cse25 .cse16 (and .cse23 .cse13 .cse3 .cse14 .cse15))))) [2020-07-21 01:24:40,443 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,443 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,443 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,443 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 01:24:40,443 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 01:24:40,443 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 01:24:40,443 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 01:24:40,443 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 01:24:40,443 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 01:24:40,443 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 01:24:40,443 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 01:24:40,443 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 01:24:40,443 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 01:24:40,444 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 01:24:40,444 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 01:24:40,444 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 01:24:40,444 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,444 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,444 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,444 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,444 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,444 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,444 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 01:24:40,444 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 01:24:40,444 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 01:24:40,445 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 01:24:40,445 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 01:24:40,445 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 01:24:40,445 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 01:24:40,445 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 01:24:40,445 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 01:24:40,445 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 01:24:40,445 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 01:24:40,445 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:24:40,445 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:24:40,446 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 01:24:40,446 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 01:24:40,446 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 01:24:40,446 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,446 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,446 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,446 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,446 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:40,446 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 01:24:40,446 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 01:24:40,447 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 01:24:40,447 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 01:24:40,447 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 01:24:40,447 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 01:24:40,447 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 01:24:40,447 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 01:24:40,447 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 01:24:40,447 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 01:24:40,447 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 01:24:40,447 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:24:40,448 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 01:24:40,448 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:24:40,448 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 01:24:40,448 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:24:40,448 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:24:40,448 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 01:24:40,448 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 01:24:40,448 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:24:40,448 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 7 ~a28~0) (= 1 ~a21~0) (= 8 ~a17~0)) [2020-07-21 01:24:40,448 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:24:40,449 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:24:40,449 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (and (<= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a28~0 |old(~a28~0)|) (= 8 ~a17~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a11~0)| 0))) [2020-07-21 01:24:40,449 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse2 (<= 8 ~a17~0)) (.cse3 (<= ~a28~0 9)) (.cse8 (= 1 ~a11~0)) (.cse0 (<= ~a11~0 0)) (.cse5 (<= 9 ~a28~0)) (.cse6 (= 1 ~a25~0)) (.cse7 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8)) (.cse9 (< ~a28~0 11)) (.cse4 (<= ~a17~0 7)) (.cse10 (<= 10 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6) (and .cse7 .cse1 (not .cse8) .cse5 .cse6) (and .cse8 .cse1 .cse2 .cse3) (not (= 7 |old(~a28~0)|)) (and .cse7 .cse8 .cse4 .cse6) (and .cse0 .cse1 .cse9 .cse5 .cse6) (and .cse7 .cse1 .cse9 .cse10) (and .cse4 .cse10) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)))) [2020-07-21 01:24:40,449 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:24:40,449 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:24:40,449 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse2 (<= 8 ~a17~0)) (.cse3 (<= ~a28~0 9)) (.cse8 (= 1 ~a11~0)) (.cse0 (<= ~a11~0 0)) (.cse5 (<= 9 ~a28~0)) (.cse6 (= 1 ~a25~0)) (.cse7 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8)) (.cse9 (< ~a28~0 11)) (.cse4 (<= ~a17~0 7)) (.cse10 (<= 10 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6) (and .cse7 .cse1 (not .cse8) .cse5 .cse6) (and .cse8 .cse1 .cse2 .cse3) (not (= 7 |old(~a28~0)|)) (and .cse7 .cse8 .cse4 .cse6) (and .cse0 .cse1 .cse9 .cse5 .cse6) (and .cse7 .cse1 .cse9 .cse10) (and .cse4 .cse10) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)))) [2020-07-21 01:24:40,450 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 01:24:40,450 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 01:24:40,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:24:40 BoogieIcfgContainer [2020-07-21 01:24:40,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:24:40,476 INFO L168 Benchmark]: Toolchain (without parser) took 27561.87 ms. Allocated memory was 145.2 MB in the beginning and 569.9 MB in the end (delta: 424.7 MB). Free memory was 101.6 MB in the beginning and 306.3 MB in the end (delta: -204.7 MB). Peak memory consumption was 399.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:40,476 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 01:24:40,477 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.22 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 101.2 MB in the beginning and 172.9 MB in the end (delta: -71.8 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:40,478 INFO L168 Benchmark]: Boogie Preprocessor took 101.31 ms. Allocated memory is still 205.5 MB. Free memory was 172.9 MB in the beginning and 168.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:40,479 INFO L168 Benchmark]: RCFGBuilder took 1253.56 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 168.0 MB in the beginning and 181.1 MB in the end (delta: -13.1 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:40,479 INFO L168 Benchmark]: TraceAbstraction took 25518.30 ms. Allocated memory was 238.0 MB in the beginning and 569.9 MB in the end (delta: 331.9 MB). Free memory was 181.1 MB in the beginning and 306.3 MB in the end (delta: -125.2 MB). Peak memory consumption was 385.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:40,482 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 682.22 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 101.2 MB in the beginning and 172.9 MB in the end (delta: -71.8 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.31 ms. Allocated memory is still 205.5 MB. Free memory was 172.9 MB in the beginning and 168.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1253.56 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 168.0 MB in the beginning and 181.1 MB in the end (delta: -13.1 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 25518.30 ms. Allocated memory was 238.0 MB in the beginning and 569.9 MB in the end (delta: 331.9 MB). Free memory was 181.1 MB in the beginning and 306.3 MB in the end (delta: -125.2 MB). Peak memory consumption was 385.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 448]: 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: 606]: Loop Invariant Derived loop invariant: ((((((((((((!(1 == \old(a19)) || (((a11 <= 0 && a17 <= 8) && 8 <= a17) && a28 <= 9)) || ((a17 <= 7 && 9 <= a28) && 1 == a25)) || ((((1 == a19 && a17 <= 8) && !(1 == a11)) && 9 <= a28) && 1 == a25)) || (((1 == a11 && a17 <= 8) && 8 <= a17) && a28 <= 9)) || !(7 == \old(a28))) || (((1 == a19 && 1 == a11) && a17 <= 7) && 1 == a25)) || ((((a11 <= 0 && a17 <= 8) && a28 < 11) && 9 <= a28) && 1 == a25)) || (((1 == a19 && a17 <= 8) && a28 < 11) && 10 <= a28)) || (a17 <= 7 && 10 <= a28)) || !(1 == a21)) || !(\old(a11) <= 0)) || !(8 == \old(a17))) || !(\old(a25) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 23.2s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 14.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1302 SDtfs, 5800 SDslu, 853 SDs, 0 SdLazy, 10087 SolverSat, 1306 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3242 GetRequests, 3126 SyntacticMatches, 6 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4733occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 578 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 178 PreInvPairs, 226 NumberOfFragments, 818 HoareAnnotationTreeSize, 178 FomulaSimplifications, 2783 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2452 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 2077 NumberOfCodeBlocks, 1472 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 3179 ConstructedInterpolants, 0 QuantifiedInterpolants, 2072778 SizeOfPredicates, 49 NumberOfNonLiveVariables, 4684 ConjunctsInSsa, 158 ConjunctsInUnsatCore, 20 InterpolantComputations, 6 PerfectInterpolantSequences, 1868/1898 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...