/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 NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label47.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 13:52:16,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 13:52:16,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 13:52:17,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 13:52:17,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 13:52:17,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 13:52:17,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 13:52:17,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 13:52:17,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 13:52:17,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 13:52:17,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 13:52:17,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 13:52:17,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:52:17,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:52:17,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:52:17,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:52:17,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:52:17,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:52:17,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:52:17,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:52:17,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:52:17,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:52:17,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:52:17,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:52:17,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 13:52:17,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:52:17,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:52:17,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:52:17,046 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 13:52:17,060 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:52:17,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:52:17,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:52:17,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:52:17,062 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:52:17,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:52:17,062 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:52:17,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:52:17,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:52:17,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:52:17,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:52:17,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:52:17,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:52:17,063 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:52:17,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:52:17,064 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:52:17,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:52:17,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:52:17,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:52:17,065 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:52:17,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:52:17,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:52:17,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:52:17,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:52:17,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:52:17,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:52:17,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:17,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:52:17,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:52:17,067 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 -> NUM_FUNCTIONS 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 -> 2 [2020-07-21 13:52:17,402 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:52:17,415 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:52:17,419 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:52:17,420 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:52:17,421 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:52:17,422 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label47.c [2020-07-21 13:52:17,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d46bd89d8/8fe6c66caff84a7ba9a6ab27871fa759/FLAGb919a8a6c [2020-07-21 13:52:18,074 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:52:18,075 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label47.c [2020-07-21 13:52:18,088 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d46bd89d8/8fe6c66caff84a7ba9a6ab27871fa759/FLAGb919a8a6c [2020-07-21 13:52:18,333 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d46bd89d8/8fe6c66caff84a7ba9a6ab27871fa759 [2020-07-21 13:52:18,342 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:52:18,344 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:52:18,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:52:18,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:52:18,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:52:18,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:52:18" (1/1) ... [2020-07-21 13:52:18,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab40a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:18, skipping insertion in model container [2020-07-21 13:52:18,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:52:18" (1/1) ... [2020-07-21 13:52:18,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:52:18,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:52:19,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:52:19,024 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:52:19,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:52:19,146 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:52:19,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:19 WrapperNode [2020-07-21 13:52:19,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:52:19,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:52:19,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:52:19,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:52:19,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:19" (1/1) ... [2020-07-21 13:52:19,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:19" (1/1) ... [2020-07-21 13:52:19,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:19" (1/1) ... [2020-07-21 13:52:19,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:19" (1/1) ... [2020-07-21 13:52:19,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:19" (1/1) ... [2020-07-21 13:52:19,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:19" (1/1) ... [2020-07-21 13:52:19,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:19" (1/1) ... [2020-07-21 13:52:19,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:52:19,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:52:19,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:52:19,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:52:19,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:19" (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 13:52:19,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:52:19,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:52:19,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 13:52:19,336 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:52:19,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 13:52:19,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:52:19,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:52:19,336 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 13:52:19,336 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:52:19,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:52:19,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:52:20,531 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:52:20,533 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 13:52:20,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:20 BoogieIcfgContainer [2020-07-21 13:52:20,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:52:20,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:52:20,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:52:20,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:52:20,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:52:18" (1/3) ... [2020-07-21 13:52:20,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45854fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:20, skipping insertion in model container [2020-07-21 13:52:20,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:19" (2/3) ... [2020-07-21 13:52:20,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45854fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:20, skipping insertion in model container [2020-07-21 13:52:20,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:20" (3/3) ... [2020-07-21 13:52:20,558 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label47.c [2020-07-21 13:52:20,569 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:52:20,578 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:52:20,593 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:52:20,621 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:52:20,621 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:52:20,622 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:52:20,622 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:52:20,622 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:52:20,622 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:52:20,622 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:52:20,623 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:52:20,648 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 13:52:20,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-21 13:52:20,661 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:20,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:20,663 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:20,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:20,670 INFO L82 PathProgramCache]: Analyzing trace with hash -681714095, now seen corresponding path program 1 times [2020-07-21 13:52:20,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:20,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245360130] [2020-07-21 13:52:20,681 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:20,877 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:20,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:20,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:52:20,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:20,991 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 13:52:20,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:20,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245360130] [2020-07-21 13:52:20,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:20,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:20,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989866444] [2020-07-21 13:52:21,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:21,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:21,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:21,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:21,019 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 13:52:21,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:21,981 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-21 13:52:21,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:21,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-07-21 13:52:21,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:22,001 INFO L225 Difference]: With dead ends: 619 [2020-07-21 13:52:22,001 INFO L226 Difference]: Without dead ends: 321 [2020-07-21 13:52:22,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 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 13:52:22,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-21 13:52:22,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-21 13:52:22,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-21 13:52:22,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-21 13:52:22,088 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 113 [2020-07-21 13:52:22,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:22,090 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-21 13:52:22,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:22,090 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-21 13:52:22,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-21 13:52:22,102 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:22,102 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:22,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:22,318 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:22,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:22,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1721695616, now seen corresponding path program 1 times [2020-07-21 13:52:22,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:22,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750146174] [2020-07-21 13:52:22,319 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:22,446 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:22,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:22,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:22,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:22,551 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:52:22,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:22,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750146174] [2020-07-21 13:52:22,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:22,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:22,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160223922] [2020-07-21 13:52:22,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:22,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:22,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:22,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:22,555 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 3 states. [2020-07-21 13:52:23,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:23,165 INFO L93 Difference]: Finished difference Result 780 states and 1068 transitions. [2020-07-21 13:52:23,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:23,166 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-07-21 13:52:23,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:23,179 INFO L225 Difference]: With dead ends: 780 [2020-07-21 13:52:23,180 INFO L226 Difference]: Without dead ends: 467 [2020-07-21 13:52:23,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 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 13:52:23,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2020-07-21 13:52:23,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 465. [2020-07-21 13:52:23,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2020-07-21 13:52:23,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 636 transitions. [2020-07-21 13:52:23,243 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 636 transitions. Word has length 122 [2020-07-21 13:52:23,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:23,244 INFO L479 AbstractCegarLoop]: Abstraction has 465 states and 636 transitions. [2020-07-21 13:52:23,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:23,244 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 636 transitions. [2020-07-21 13:52:23,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-21 13:52:23,249 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:23,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:23,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:23,463 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:23,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:23,464 INFO L82 PathProgramCache]: Analyzing trace with hash 887096840, now seen corresponding path program 1 times [2020-07-21 13:52:23,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:23,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670651941] [2020-07-21 13:52:23,466 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:23,562 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:23,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:23,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 13:52:23,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:23,645 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 13:52:23,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:23,740 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 13:52:23,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670651941] [2020-07-21 13:52:23,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 13:52:23,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-21 13:52:23,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414492892] [2020-07-21 13:52:23,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 13:52:23,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:23,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 13:52:23,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:23,754 INFO L87 Difference]: Start difference. First operand 465 states and 636 transitions. Second operand 4 states. [2020-07-21 13:52:24,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:24,463 INFO L93 Difference]: Finished difference Result 1376 states and 1912 transitions. [2020-07-21 13:52:24,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 13:52:24,464 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 126 [2020-07-21 13:52:24,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:24,470 INFO L225 Difference]: With dead ends: 1376 [2020-07-21 13:52:24,471 INFO L226 Difference]: Without dead ends: 917 [2020-07-21 13:52:24,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 244 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:24,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2020-07-21 13:52:24,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 917. [2020-07-21 13:52:24,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2020-07-21 13:52:24,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1236 transitions. [2020-07-21 13:52:24,507 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1236 transitions. Word has length 126 [2020-07-21 13:52:24,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:24,508 INFO L479 AbstractCegarLoop]: Abstraction has 917 states and 1236 transitions. [2020-07-21 13:52:24,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 13:52:24,508 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1236 transitions. [2020-07-21 13:52:24,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-07-21 13:52:24,512 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:24,512 INFO L422 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:24,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:24,721 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:24,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:24,722 INFO L82 PathProgramCache]: Analyzing trace with hash 22513303, now seen corresponding path program 1 times [2020-07-21 13:52:24,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:24,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317886214] [2020-07-21 13:52:24,724 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:24,853 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:24,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:24,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 13:52:24,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:24,902 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-21 13:52:24,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:24,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317886214] [2020-07-21 13:52:24,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:24,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:52:24,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886733863] [2020-07-21 13:52:24,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:52:24,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:24,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:52:24,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:24,905 INFO L87 Difference]: Start difference. First operand 917 states and 1236 transitions. Second operand 5 states. [2020-07-21 13:52:25,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:25,813 INFO L93 Difference]: Finished difference Result 2616 states and 3641 transitions. [2020-07-21 13:52:25,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:52:25,814 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2020-07-21 13:52:25,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:25,826 INFO L225 Difference]: With dead ends: 2616 [2020-07-21 13:52:25,826 INFO L226 Difference]: Without dead ends: 1705 [2020-07-21 13:52:25,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:25,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2020-07-21 13:52:25,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1681. [2020-07-21 13:52:25,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1681 states. [2020-07-21 13:52:25,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 2154 transitions. [2020-07-21 13:52:25,888 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 2154 transitions. Word has length 140 [2020-07-21 13:52:25,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:25,888 INFO L479 AbstractCegarLoop]: Abstraction has 1681 states and 2154 transitions. [2020-07-21 13:52:25,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:52:25,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 2154 transitions. [2020-07-21 13:52:25,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-21 13:52:25,894 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:25,894 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 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 13:52:26,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:26,109 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:26,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:26,110 INFO L82 PathProgramCache]: Analyzing trace with hash -246324716, now seen corresponding path program 1 times [2020-07-21 13:52:26,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:26,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [819039786] [2020-07-21 13:52:26,111 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:26,230 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:26,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:26,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:26,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:26,272 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 13:52:26,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:26,356 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 13:52:26,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [819039786] [2020-07-21 13:52:26,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:26,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:26,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403400541] [2020-07-21 13:52:26,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:26,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:26,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:26,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:26,360 INFO L87 Difference]: Start difference. First operand 1681 states and 2154 transitions. Second operand 7 states. [2020-07-21 13:52:27,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:27,764 INFO L93 Difference]: Finished difference Result 3994 states and 5259 transitions. [2020-07-21 13:52:27,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 13:52:27,765 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 143 [2020-07-21 13:52:27,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:27,777 INFO L225 Difference]: With dead ends: 3994 [2020-07-21 13:52:27,778 INFO L226 Difference]: Without dead ends: 2319 [2020-07-21 13:52:27,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 283 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-07-21 13:52:27,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2020-07-21 13:52:27,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2299. [2020-07-21 13:52:27,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2299 states. [2020-07-21 13:52:27,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 2873 transitions. [2020-07-21 13:52:27,849 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 2873 transitions. Word has length 143 [2020-07-21 13:52:27,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:27,850 INFO L479 AbstractCegarLoop]: Abstraction has 2299 states and 2873 transitions. [2020-07-21 13:52:27,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:52:27,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 2873 transitions. [2020-07-21 13:52:27,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-21 13:52:27,856 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:27,857 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:28,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:28,070 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:28,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:28,071 INFO L82 PathProgramCache]: Analyzing trace with hash 730174251, now seen corresponding path program 1 times [2020-07-21 13:52:28,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:28,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [596284312] [2020-07-21 13:52:28,072 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:28,184 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:28,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:28,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:28,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:28,226 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 13:52:28,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:28,291 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 54 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 13:52:28,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [596284312] [2020-07-21 13:52:28,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:28,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:28,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824383757] [2020-07-21 13:52:28,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:28,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:28,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:28,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:28,294 INFO L87 Difference]: Start difference. First operand 2299 states and 2873 transitions. Second operand 7 states. [2020-07-21 13:52:28,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:28,947 INFO L93 Difference]: Finished difference Result 4455 states and 5676 transitions. [2020-07-21 13:52:28,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 13:52:28,947 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-07-21 13:52:28,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:28,959 INFO L225 Difference]: With dead ends: 4455 [2020-07-21 13:52:28,960 INFO L226 Difference]: Without dead ends: 2162 [2020-07-21 13:52:28,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 300 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 13:52:28,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2162 states. [2020-07-21 13:52:29,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2162 to 2134. [2020-07-21 13:52:29,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2134 states. [2020-07-21 13:52:29,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 2547 transitions. [2020-07-21 13:52:29,022 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 2547 transitions. Word has length 153 [2020-07-21 13:52:29,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:29,023 INFO L479 AbstractCegarLoop]: Abstraction has 2134 states and 2547 transitions. [2020-07-21 13:52:29,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:52:29,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 2547 transitions. [2020-07-21 13:52:29,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-21 13:52:29,029 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:29,029 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:29,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:29,243 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:29,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:29,243 INFO L82 PathProgramCache]: Analyzing trace with hash -112148995, now seen corresponding path program 1 times [2020-07-21 13:52:29,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:29,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841281520] [2020-07-21 13:52:29,245 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:29,348 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:29,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:29,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:29,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:29,395 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 13:52:29,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:29,457 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 13:52:29,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1841281520] [2020-07-21 13:52:29,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:29,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:29,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872357649] [2020-07-21 13:52:29,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:29,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:29,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:29,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:29,460 INFO L87 Difference]: Start difference. First operand 2134 states and 2547 transitions. Second operand 7 states. [2020-07-21 13:52:30,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:30,872 INFO L93 Difference]: Finished difference Result 5418 states and 6431 transitions. [2020-07-21 13:52:30,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:52:30,872 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 167 [2020-07-21 13:52:30,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:30,889 INFO L225 Difference]: With dead ends: 5418 [2020-07-21 13:52:30,889 INFO L226 Difference]: Without dead ends: 3290 [2020-07-21 13:52:30,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 329 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 13:52:30,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2020-07-21 13:52:30,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 3290. [2020-07-21 13:52:30,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3290 states. [2020-07-21 13:52:30,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 3780 transitions. [2020-07-21 13:52:30,982 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 3780 transitions. Word has length 167 [2020-07-21 13:52:30,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:30,983 INFO L479 AbstractCegarLoop]: Abstraction has 3290 states and 3780 transitions. [2020-07-21 13:52:30,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:52:30,983 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 3780 transitions. [2020-07-21 13:52:30,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-07-21 13:52:30,991 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:30,991 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:31,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:31,201 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:31,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:31,202 INFO L82 PathProgramCache]: Analyzing trace with hash 2077018293, now seen corresponding path program 1 times [2020-07-21 13:52:31,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:31,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572257597] [2020-07-21 13:52:31,203 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:31,309 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:31,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:31,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:31,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:31,384 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 13:52:31,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:31,452 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 13:52:31,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572257597] [2020-07-21 13:52:31,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:31,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:31,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265242816] [2020-07-21 13:52:31,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:31,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:31,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:31,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:31,455 INFO L87 Difference]: Start difference. First operand 3290 states and 3780 transitions. Second operand 7 states. [2020-07-21 13:52:32,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:32,790 INFO L93 Difference]: Finished difference Result 6288 states and 7180 transitions. [2020-07-21 13:52:32,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:52:32,793 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 174 [2020-07-21 13:52:32,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:32,809 INFO L225 Difference]: With dead ends: 6288 [2020-07-21 13:52:32,811 INFO L226 Difference]: Without dead ends: 2987 [2020-07-21 13:52:32,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 343 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 13:52:32,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2020-07-21 13:52:32,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2841. [2020-07-21 13:52:32,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2841 states. [2020-07-21 13:52:32,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 3194 transitions. [2020-07-21 13:52:32,912 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 3194 transitions. Word has length 174 [2020-07-21 13:52:32,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:32,913 INFO L479 AbstractCegarLoop]: Abstraction has 2841 states and 3194 transitions. [2020-07-21 13:52:32,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:52:32,913 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 3194 transitions. [2020-07-21 13:52:32,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-21 13:52:32,922 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:32,922 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:33,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:33,136 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:33,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:33,137 INFO L82 PathProgramCache]: Analyzing trace with hash -199186367, now seen corresponding path program 1 times [2020-07-21 13:52:33,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:33,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19461986] [2020-07-21 13:52:33,138 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:33,308 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:33,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:33,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:52:33,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:33,358 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-07-21 13:52:33,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:33,442 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 93 proven. 39 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-21 13:52:33,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19461986] [2020-07-21 13:52:33,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:33,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:33,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72376617] [2020-07-21 13:52:33,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:33,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:33,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:33,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:33,445 INFO L87 Difference]: Start difference. First operand 2841 states and 3194 transitions. Second operand 7 states. [2020-07-21 13:52:34,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:34,769 INFO L93 Difference]: Finished difference Result 7159 states and 8072 transitions. [2020-07-21 13:52:34,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:52:34,770 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2020-07-21 13:52:34,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:34,783 INFO L225 Difference]: With dead ends: 7159 [2020-07-21 13:52:34,783 INFO L226 Difference]: Without dead ends: 4021 [2020-07-21 13:52:34,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 394 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 13:52:34,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4021 states. [2020-07-21 13:52:34,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4021 to 4019. [2020-07-21 13:52:34,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4019 states. [2020-07-21 13:52:34,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 4422 transitions. [2020-07-21 13:52:34,886 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 4422 transitions. Word has length 199 [2020-07-21 13:52:34,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:34,886 INFO L479 AbstractCegarLoop]: Abstraction has 4019 states and 4422 transitions. [2020-07-21 13:52:34,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:52:34,887 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 4422 transitions. [2020-07-21 13:52:34,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-07-21 13:52:34,898 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:34,898 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 13:52:35,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:35,114 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:35,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:35,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1074860385, now seen corresponding path program 1 times [2020-07-21 13:52:35,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:35,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098699776] [2020-07-21 13:52:35,115 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 13:52:35,272 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:35,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:35,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:35,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:35,346 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 156 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-07-21 13:52:35,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:35,447 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 156 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-07-21 13:52:35,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098699776] [2020-07-21 13:52:35,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:35,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:52:35,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397836655] [2020-07-21 13:52:35,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:52:35,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:35,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:52:35,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:35,450 INFO L87 Difference]: Start difference. First operand 4019 states and 4422 transitions. Second operand 6 states. [2020-07-21 13:52:36,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:36,242 INFO L93 Difference]: Finished difference Result 7878 states and 8745 transitions. [2020-07-21 13:52:36,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:52:36,243 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2020-07-21 13:52:36,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:36,243 INFO L225 Difference]: With dead ends: 7878 [2020-07-21 13:52:36,244 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:52:36,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 434 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:52:36,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:52:36,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:52:36,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:52:36,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:52:36,257 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 219 [2020-07-21 13:52:36,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:36,257 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:52:36,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:52:36,258 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:52:36,258 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:52:36,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:36,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:52:36,985 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 76 [2020-07-21 13:52:38,386 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 144 DAG size of output: 71 [2020-07-21 13:52:38,969 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2020-07-21 13:52:39,497 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2020-07-21 13:52:39,502 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:52:39,502 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 13:52:39,502 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:52:39,502 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,503 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,503 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,503 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,503 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,503 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 13:52:39,504 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 13:52:39,504 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 13:52:39,504 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 13:52:39,504 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 13:52:39,504 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 13:52:39,504 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 13:52:39,504 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 13:52:39,504 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 13:52:39,504 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 13:52:39,504 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:52:39,505 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:52:39,505 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 13:52:39,505 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,505 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,505 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,505 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,505 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 13:52:39,505 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,506 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 13:52:39,506 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 13:52:39,506 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 13:52:39,506 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 13:52:39,506 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 13:52:39,506 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 13:52:39,506 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 13:52:39,506 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:52:39,506 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:52:39,507 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 13:52:39,507 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 13:52:39,507 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 13:52:39,507 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:52:39,507 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:52:39,507 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 13:52:39,507 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,507 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,508 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,508 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,508 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,508 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 493) no Hoare annotation was computed. [2020-07-21 13:52:39,508 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:52:39,508 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 13:52:39,508 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:52:39,509 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 13:52:39,509 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 13:52:39,509 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 13:52:39,509 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 13:52:39,509 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 13:52:39,509 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 13:52:39,509 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 13:52:39,509 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 13:52:39,509 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,510 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,510 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,510 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,510 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,510 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 13:52:39,510 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 13:52:39,510 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 13:52:39,510 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 13:52:39,511 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 13:52:39,511 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 13:52:39,511 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 13:52:39,511 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 13:52:39,511 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 13:52:39,511 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 13:52:39,511 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 13:52:39,511 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 13:52:39,512 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 13:52:39,512 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,512 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,512 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,512 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,512 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,512 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 13:52:39,512 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 13:52:39,512 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 13:52:39,513 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 13:52:39,513 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 13:52:39,513 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 13:52:39,513 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 13:52:39,513 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 13:52:39,513 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 13:52:39,513 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 13:52:39,513 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 13:52:39,513 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 13:52:39,514 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 13:52:39,514 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:52:39,514 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 13:52:39,514 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:52:39,514 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,514 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,514 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,514 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,514 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 13:52:39,514 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,515 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:52:39,515 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,515 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:52:39,515 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:52:39,515 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:52:39,515 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,515 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,515 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 13:52:39,515 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 13:52:39,516 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 13:52:39,516 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 13:52:39,516 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 13:52:39,516 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 13:52:39,516 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 13:52:39,516 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 13:52:39,516 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 13:52:39,516 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 13:52:39,516 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 13:52:39,517 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,517 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,517 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,517 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,517 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,517 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,517 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 13:52:39,517 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 13:52:39,517 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 13:52:39,518 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 13:52:39,518 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 13:52:39,518 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 13:52:39,518 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 13:52:39,518 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 13:52:39,518 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 13:52:39,518 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 13:52:39,518 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 13:52:39,518 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,519 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,519 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,519 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,519 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,519 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,519 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 13:52:39,519 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 13:52:39,519 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 13:52:39,519 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 13:52:39,520 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 13:52:39,520 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 13:52:39,520 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 13:52:39,520 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 13:52:39,520 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 13:52:39,520 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 13:52:39,520 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 13:52:39,520 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 13:52:39,521 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 13:52:39,521 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 13:52:39,521 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,521 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,521 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,521 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse19 (<= ~a17~0 |old(~a17~0)|)) (.cse20 (<= ~a11~0 0)) (.cse22 (<= ~a28~0 10)) (.cse6 (= ~a19~0 |old(~a19~0)|)) (.cse7 (<= |old(~a28~0)| ~a28~0))) (let ((.cse12 (and .cse19 (or .cse20 (< 0 |old(~a11~0)|)) .cse22 .cse6 .cse7)) (.cse13 (not (<= |old(~a17~0)| 7))) (.cse17 (<= ~a28~0 7)) (.cse11 (not (<= 9 |old(~a28~0)|))) (.cse0 (not (<= |old(~a28~0)| 9))) (.cse14 (not (= 1 |old(~a19~0)|))) (.cse15 (not (<= |old(~a28~0)| 7))) (.cse3 (<= ~a28~0 |old(~a28~0)|)) (.cse8 (= ~a25~0 |old(~a25~0)|)) (.cse4 (<= ~a17~0 8)) (.cse5 (<= 8 ~a17~0)) (.cse18 (= 1 ~a25~0)) (.cse10 (not (<= |old(~a28~0)| 10))) (.cse1 (not (<= 8 |old(~a17~0)|))) (.cse16 (not (= 1 |old(~a25~0)|))) (.cse2 (not (<= |old(~a19~0)| 0))) (.cse9 (not (<= |old(~a17~0)| 8))) (.cse21 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) .cse9) (or .cse10 .cse11 .cse12 .cse2 .cse13) (or .cse14 .cse15 .cse1 .cse16 (and .cse4 .cse5 .cse6 .cse7 .cse17 .cse18) .cse9) (or .cse14 .cse10 .cse11 .cse12 .cse9) (or .cse14 .cse15 .cse13 (and .cse19 .cse6 .cse7 .cse17)) (or .cse14 .cse1 .cse16 (and .cse20 .cse3 .cse4 .cse5 .cse6 .cse7 .cse18) .cse9 .cse21) (or .cse14 .cse10 (and .cse3 .cse5 .cse8) .cse11 .cse1 .cse9) (or .cse20 .cse0 .cse1 .cse2 .cse9 .cse21) (or .cse14 .cse15 (and .cse20 .cse3 .cse4 .cse6 .cse7 .cse8) .cse9 .cse21) (or (and .cse20 .cse4 .cse5 .cse22 .cse6 .cse7 .cse18) .cse10 .cse1 .cse16 .cse2 .cse9 .cse21)))) [2020-07-21 13:52:39,522 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,522 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,522 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,522 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 13:52:39,522 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 13:52:39,522 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 13:52:39,522 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 13:52:39,522 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 13:52:39,522 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 13:52:39,523 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 13:52:39,523 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 13:52:39,523 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 13:52:39,523 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 13:52:39,523 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 13:52:39,523 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 13:52:39,523 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 13:52:39,523 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,523 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,524 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,524 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,524 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,524 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,524 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 13:52:39,524 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 13:52:39,524 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 13:52:39,524 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 13:52:39,524 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 13:52:39,524 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 13:52:39,525 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 13:52:39,525 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 13:52:39,525 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 13:52:39,525 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 13:52:39,525 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 13:52:39,525 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:52:39,525 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:52:39,525 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 13:52:39,525 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 13:52:39,526 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 13:52:39,526 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,526 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,526 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,526 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,526 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:39,526 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 13:52:39,526 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 13:52:39,526 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 13:52:39,527 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 13:52:39,527 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 13:52:39,527 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 13:52:39,527 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 13:52:39,527 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 13:52:39,527 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 13:52:39,527 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 13:52:39,527 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 13:52:39,527 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:52:39,527 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 13:52:39,528 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:52:39,528 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 13:52:39,528 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:52:39,528 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:52:39,528 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 13:52:39,528 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 13:52:39,528 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:52:39,528 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a28~0 7)) [2020-07-21 13:52:39,528 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:52:39,529 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:52:39,529 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-21 13:52:39,529 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse5 (<= ~a19~0 |old(~a19~0)|)) (.cse11 (<= ~a19~0 0)) (.cse4 (<= ~a28~0 10)) (.cse9 (<= ~a17~0 7)) (.cse10 (< 7 |old(~a17~0)|)) (.cse8 (<= 9 ~a28~0)) (.cse1 (<= ~a11~0 0)) (.cse7 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= 8 ~a17~0)) (.cse3 (not (= 1 |old(~a25~0)|))) (.cse12 (<= ~a28~0 7)) (.cse6 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse1 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse7 .cse0 .cse2 .cse3 .cse4 .cse8) (and .cse4 .cse9 .cse10 .cse8 .cse11) (and (<= 1 ~a19~0) .cse9 .cse5 .cse10 .cse12) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse2 (<= ~a28~0 9) .cse3 .cse11) (and .cse7 .cse4 .cse9 .cse10 .cse8) (and .cse7 .cse0 .cse1 .cse2 .cse3 .cse6) (and .cse7 .cse0 .cse2 .cse3 .cse12 .cse6) (not (<= |old(~a17~0)| 8)))) [2020-07-21 13:52:39,529 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:52:39,529 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:52:39,530 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse5 (<= ~a19~0 |old(~a19~0)|)) (.cse11 (<= ~a19~0 0)) (.cse4 (<= ~a28~0 10)) (.cse9 (<= ~a17~0 7)) (.cse10 (< 7 |old(~a17~0)|)) (.cse8 (<= 9 ~a28~0)) (.cse1 (<= ~a11~0 0)) (.cse7 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= 8 ~a17~0)) (.cse3 (not (= 1 |old(~a25~0)|))) (.cse12 (<= ~a28~0 7)) (.cse6 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse1 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse7 .cse0 .cse2 .cse3 .cse4 .cse8) (and .cse4 .cse9 .cse10 .cse8 .cse11) (and (<= 1 ~a19~0) .cse9 .cse5 .cse10 .cse12) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse2 (<= ~a28~0 9) .cse3 .cse11) (and .cse7 .cse4 .cse9 .cse10 .cse8) (and .cse7 .cse0 .cse1 .cse2 .cse3 .cse6) (and .cse7 .cse0 .cse2 .cse3 .cse12 .cse6) (not (<= |old(~a17~0)| 8)))) [2020-07-21 13:52:39,530 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 13:52:39,530 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 13:52:39,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:52:39 BoogieIcfgContainer [2020-07-21 13:52:39,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:52:39,553 INFO L168 Benchmark]: Toolchain (without parser) took 21210.54 ms. Allocated memory was 144.2 MB in the beginning and 509.6 MB in the end (delta: 365.4 MB). Free memory was 100.5 MB in the beginning and 272.0 MB in the end (delta: -171.5 MB). Peak memory consumption was 350.7 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:39,554 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 13:52:39,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 801.76 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 100.1 MB in the beginning and 167.8 MB in the end (delta: -67.7 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:39,556 INFO L168 Benchmark]: Boogie Preprocessor took 114.92 ms. Allocated memory is still 201.3 MB. Free memory was 167.8 MB in the beginning and 162.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:39,557 INFO L168 Benchmark]: RCFGBuilder took 1283.52 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 162.8 MB in the beginning and 178.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:39,558 INFO L168 Benchmark]: TraceAbstraction took 19002.61 ms. Allocated memory was 232.8 MB in the beginning and 509.6 MB in the end (delta: 276.8 MB). Free memory was 177.2 MB in the beginning and 272.0 MB in the end (delta: -94.9 MB). Peak memory consumption was 338.8 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:39,561 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 801.76 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 100.1 MB in the beginning and 167.8 MB in the end (delta: -67.7 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.92 ms. Allocated memory is still 201.3 MB. Free memory was 167.8 MB in the beginning and 162.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1283.52 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 162.8 MB in the beginning and 178.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19002.61 ms. Allocated memory was 232.8 MB in the beginning and 509.6 MB in the end (delta: 276.8 MB). Free memory was 177.2 MB in the beginning and 272.0 MB in the end (delta: -94.9 MB). Peak memory consumption was 338.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 493]: 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)) || ((((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && !(1 == \old(a25))) && a28 <= 10) && a19 <= \old(a19)) && 1 == a25)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= \old(a28)) && a25 == \old(a25))) || !(\old(a28) <= 7)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && !(1 == \old(a25))) && a28 <= 10) && 9 <= a28)) || ((((a28 <= 10 && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || ((((1 <= a19 && a17 <= 7) && a19 <= \old(a19)) && 7 < \old(a17)) && a28 <= 7)) || !(\old(a11) <= 0)) || ((((a17 <= \old(a17) && 8 <= a17) && a28 <= 9) && !(1 == \old(a25))) && a19 <= 0)) || ((((1 == a19 && a28 <= 10) && a17 <= 7) && 7 < \old(a17)) && 9 <= a28)) || (((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && 8 <= a17) && !(1 == \old(a25))) && 1 == a25)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && !(1 == \old(a25))) && a28 <= 7) && 1 == a25)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.8s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 597 SDtfs, 4999 SDslu, 595 SDs, 0 SdLazy, 8436 SolverSat, 1062 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2756 GetRequests, 2694 SyntacticMatches, 10 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4019occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 224 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 154 PreInvPairs, 228 NumberOfFragments, 793 HoareAnnotationTreeSize, 154 FomulaSimplifications, 3146 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3618 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1556 NumberOfCodeBlocks, 1556 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2720 ConstructedInterpolants, 0 QuantifiedInterpolants, 752128 SizeOfPredicates, 12 NumberOfNonLiveVariables, 4304 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 17 InterpolantComputations, 4 PerfectInterpolantSequences, 1274/1350 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...