/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 DAGSIZE --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_label00.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:08:29,734 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 20:08:29,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:08:29,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:08:29,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:08:29,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:08:29,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:08:29,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:08:29,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:08:29,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:08:29,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:08:29,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:08:29,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:08:29,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:08:29,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:08:29,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:08:29,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:08:29,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:08:29,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:08:29,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:08:29,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:08:29,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:08:29,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:08:29,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:08:29,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:08:29,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:08:29,785 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 20:08:29,814 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:08:29,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:08:29,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:08:29,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:08:29,816 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:08:29,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:08:29,817 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:08:29,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:08:29,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:08:29,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:08:29,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:08:29,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:08:29,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:08:29,818 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:08:29,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:08:29,819 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:08:29,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:08:29,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:08:29,820 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:08:29,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:08:29,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:08:29,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:08:29,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:08:29,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:08:29,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:08:29,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:08:29,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:29,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:08:29,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:08:29,822 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 -> DAGSIZE 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 20:08:30,126 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:08:30,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:08:30,141 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:08:30,143 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:08:30,143 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:08:30,144 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label00.c [2020-07-21 20:08:30,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5328765f7/1b8db49c194f4a9f9fbc99bf3137224e/FLAG7883fd061 [2020-07-21 20:08:30,786 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:08:30,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label00.c [2020-07-21 20:08:30,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5328765f7/1b8db49c194f4a9f9fbc99bf3137224e/FLAG7883fd061 [2020-07-21 20:08:31,054 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5328765f7/1b8db49c194f4a9f9fbc99bf3137224e [2020-07-21 20:08:31,063 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:08:31,065 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:08:31,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:08:31,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:08:31,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:08:31,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:08:31" (1/1) ... [2020-07-21 20:08:31,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b10ad41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:31, skipping insertion in model container [2020-07-21 20:08:31,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:08:31" (1/1) ... [2020-07-21 20:08:31,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:08:31,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:08:31,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:08:31,545 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:08:31,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:08:31,810 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:08:31,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:31 WrapperNode [2020-07-21 20:08:31,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:08:31,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:08:31,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:08:31,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:08:31,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:31" (1/1) ... [2020-07-21 20:08:31,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:31" (1/1) ... [2020-07-21 20:08:31,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:31" (1/1) ... [2020-07-21 20:08:31,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:31" (1/1) ... [2020-07-21 20:08:31,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:31" (1/1) ... [2020-07-21 20:08:31,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:31" (1/1) ... [2020-07-21 20:08:31,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:31" (1/1) ... [2020-07-21 20:08:31,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:08:31,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:08:31,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:08:31,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:08:31,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:31" (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 20:08:31,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:08:31,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:08:31,981 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:08:31,981 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:08:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:08:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:08:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:08:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:08:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:08:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:08:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:08:33,216 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:08:33,217 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:08:33,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:08:33 BoogieIcfgContainer [2020-07-21 20:08:33,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:08:33,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:08:33,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:08:33,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:08:33,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:08:31" (1/3) ... [2020-07-21 20:08:33,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f283318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:08:33, skipping insertion in model container [2020-07-21 20:08:33,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:08:31" (2/3) ... [2020-07-21 20:08:33,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f283318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:08:33, skipping insertion in model container [2020-07-21 20:08:33,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:08:33" (3/3) ... [2020-07-21 20:08:33,238 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label00.c [2020-07-21 20:08:33,249 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:08:33,260 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:08:33,275 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:08:33,311 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:08:33,312 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:08:33,312 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:08:33,312 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:08:33,313 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:08:33,313 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:08:33,313 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:08:33,313 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:08:33,342 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 20:08:33,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-07-21 20:08:33,367 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:33,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:08:33,369 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:33,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:33,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1022555377, now seen corresponding path program 1 times [2020-07-21 20:08:33,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:33,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672574831] [2020-07-21 20:08:33,389 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 20:08:33,641 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:33,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:33,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:08:33,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:33,807 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 20:08:33,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:08:33,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672574831] [2020-07-21 20:08:33,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:08:33,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:08:33,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678426327] [2020-07-21 20:08:33,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:08:33,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:33,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:08:33,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:33,837 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 20:08:34,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:34,808 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-21 20:08:34,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:08:34,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-07-21 20:08:34,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:34,845 INFO L225 Difference]: With dead ends: 615 [2020-07-21 20:08:34,845 INFO L226 Difference]: Without dead ends: 317 [2020-07-21 20:08:34,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 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 20:08:34,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-21 20:08:34,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-21 20:08:34,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-21 20:08:34,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-21 20:08:34,929 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 121 [2020-07-21 20:08:34,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:34,931 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-21 20:08:34,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:08:34,931 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-21 20:08:34,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-21 20:08:34,935 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:34,936 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:08:35,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:35,150 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:35,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:35,151 INFO L82 PathProgramCache]: Analyzing trace with hash 145020396, now seen corresponding path program 1 times [2020-07-21 20:08:35,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:35,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [21353249] [2020-07-21 20:08:35,152 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 20:08:35,258 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:35,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:35,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:08:35,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:35,324 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:35,325 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:08:35,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [21353249] [2020-07-21 20:08:35,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:08:35,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:08:35,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006179352] [2020-07-21 20:08:35,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:08:35,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:35,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:08:35,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:35,329 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states. [2020-07-21 20:08:35,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:35,983 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions. [2020-07-21 20:08:35,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:08:35,984 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2020-07-21 20:08:35,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:35,989 INFO L225 Difference]: With dead ends: 919 [2020-07-21 20:08:35,989 INFO L226 Difference]: Without dead ends: 608 [2020-07-21 20:08:35,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 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 20:08:35,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-21 20:08:36,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462. [2020-07-21 20:08:36,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-07-21 20:08:36,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions. [2020-07-21 20:08:36,025 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 136 [2020-07-21 20:08:36,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:36,026 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions. [2020-07-21 20:08:36,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:08:36,027 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions. [2020-07-21 20:08:36,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-21 20:08:36,030 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:36,031 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:08:36,243 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:36,244 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:36,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:36,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1224887079, now seen corresponding path program 1 times [2020-07-21 20:08:36,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:36,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1086687406] [2020-07-21 20:08:36,247 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 20:08:36,377 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:36,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:36,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:08:36,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:36,445 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:36,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:08:36,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1086687406] [2020-07-21 20:08:36,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:08:36,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:08:36,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247937231] [2020-07-21 20:08:36,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:08:36,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:36,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:08:36,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:36,458 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states. [2020-07-21 20:08:37,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:37,095 INFO L93 Difference]: Finished difference Result 1209 states and 1740 transitions. [2020-07-21 20:08:37,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:08:37,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2020-07-21 20:08:37,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:37,102 INFO L225 Difference]: With dead ends: 1209 [2020-07-21 20:08:37,102 INFO L226 Difference]: Without dead ends: 753 [2020-07-21 20:08:37,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 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 20:08:37,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2020-07-21 20:08:37,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 609. [2020-07-21 20:08:37,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-07-21 20:08:37,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 820 transitions. [2020-07-21 20:08:37,165 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 820 transitions. Word has length 143 [2020-07-21 20:08:37,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:37,166 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 820 transitions. [2020-07-21 20:08:37,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:08:37,167 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 820 transitions. [2020-07-21 20:08:37,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-21 20:08:37,171 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:37,172 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:08:37,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:37,387 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:37,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:37,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1177628319, now seen corresponding path program 1 times [2020-07-21 20:08:37,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:37,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741411023] [2020-07-21 20:08:37,389 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 20:08:37,492 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:37,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:37,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 20:08:37,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:37,585 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:37,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:08:37,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741411023] [2020-07-21 20:08:37,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:08:37,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:08:37,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061587787] [2020-07-21 20:08:37,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:08:37,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:37,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:08:37,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:08:37,589 INFO L87 Difference]: Start difference. First operand 609 states and 820 transitions. Second operand 5 states. [2020-07-21 20:08:38,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:38,509 INFO L93 Difference]: Finished difference Result 1827 states and 2557 transitions. [2020-07-21 20:08:38,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:08:38,510 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2020-07-21 20:08:38,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:38,523 INFO L225 Difference]: With dead ends: 1827 [2020-07-21 20:08:38,523 INFO L226 Difference]: Without dead ends: 1224 [2020-07-21 20:08:38,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:08:38,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2020-07-21 20:08:38,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1208. [2020-07-21 20:08:38,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1208 states. [2020-07-21 20:08:38,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1597 transitions. [2020-07-21 20:08:38,627 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1597 transitions. Word has length 147 [2020-07-21 20:08:38,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:38,628 INFO L479 AbstractCegarLoop]: Abstraction has 1208 states and 1597 transitions. [2020-07-21 20:08:38,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:08:38,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1597 transitions. [2020-07-21 20:08:38,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-21 20:08:38,638 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:38,639 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:08:38,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:38,854 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:38,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:38,855 INFO L82 PathProgramCache]: Analyzing trace with hash -194138565, now seen corresponding path program 1 times [2020-07-21 20:08:38,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:38,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1681848233] [2020-07-21 20:08:38,856 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 20:08:39,005 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:39,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:39,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:08:39,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:39,060 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:39,061 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:08:39,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1681848233] [2020-07-21 20:08:39,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:08:39,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:08:39,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960535600] [2020-07-21 20:08:39,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:08:39,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:39,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:08:39,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:08:39,065 INFO L87 Difference]: Start difference. First operand 1208 states and 1597 transitions. Second operand 5 states. [2020-07-21 20:08:39,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:39,944 INFO L93 Difference]: Finished difference Result 2890 states and 3972 transitions. [2020-07-21 20:08:39,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:08:39,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-07-21 20:08:39,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:39,955 INFO L225 Difference]: With dead ends: 2890 [2020-07-21 20:08:39,955 INFO L226 Difference]: Without dead ends: 1688 [2020-07-21 20:08:39,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:08:39,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2020-07-21 20:08:40,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1680. [2020-07-21 20:08:40,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1680 states. [2020-07-21 20:08:40,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2186 transitions. [2020-07-21 20:08:40,025 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2186 transitions. Word has length 156 [2020-07-21 20:08:40,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:40,025 INFO L479 AbstractCegarLoop]: Abstraction has 1680 states and 2186 transitions. [2020-07-21 20:08:40,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:08:40,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2186 transitions. [2020-07-21 20:08:40,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-21 20:08:40,032 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:40,032 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:08:40,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:40,247 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:40,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:40,247 INFO L82 PathProgramCache]: Analyzing trace with hash 817268652, now seen corresponding path program 1 times [2020-07-21 20:08:40,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:40,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388227668] [2020-07-21 20:08:40,248 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 20:08:40,391 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:40,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:40,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:08:40,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:40,441 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:40,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:08:40,564 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:40,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388227668] [2020-07-21 20:08:40,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:08:40,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:08:40,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213701220] [2020-07-21 20:08:40,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:08:40,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:40,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:08:40,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:08:40,568 INFO L87 Difference]: Start difference. First operand 1680 states and 2186 transitions. Second operand 6 states. [2020-07-21 20:08:41,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:41,395 INFO L93 Difference]: Finished difference Result 3362 states and 4385 transitions. [2020-07-21 20:08:41,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:08:41,395 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-07-21 20:08:41,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:41,402 INFO L225 Difference]: With dead ends: 3362 [2020-07-21 20:08:41,403 INFO L226 Difference]: Without dead ends: 1533 [2020-07-21 20:08:41,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 324 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:08:41,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2020-07-21 20:08:41,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1526. [2020-07-21 20:08:41,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-07-21 20:08:41,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1835 transitions. [2020-07-21 20:08:41,455 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1835 transitions. Word has length 165 [2020-07-21 20:08:41,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:41,455 INFO L479 AbstractCegarLoop]: Abstraction has 1526 states and 1835 transitions. [2020-07-21 20:08:41,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:08:41,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1835 transitions. [2020-07-21 20:08:41,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-07-21 20:08:41,460 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:41,461 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:08:41,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:41,674 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:41,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:41,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1421376036, now seen corresponding path program 1 times [2020-07-21 20:08:41,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:41,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276224133] [2020-07-21 20:08:41,676 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 20:08:41,774 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:41,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:41,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:08:41,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:41,822 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:41,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:08:41,879 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:41,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276224133] [2020-07-21 20:08:41,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:08:41,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:08:41,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781137659] [2020-07-21 20:08:41,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:08:41,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:41,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:08:41,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:08:41,882 INFO L87 Difference]: Start difference. First operand 1526 states and 1835 transitions. Second operand 6 states. [2020-07-21 20:08:43,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:43,200 INFO L93 Difference]: Finished difference Result 4976 states and 6577 transitions. [2020-07-21 20:08:43,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:08:43,201 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 169 [2020-07-21 20:08:43,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:43,221 INFO L225 Difference]: With dead ends: 4976 [2020-07-21 20:08:43,221 INFO L226 Difference]: Without dead ends: 3456 [2020-07-21 20:08:43,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:08:43,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3456 states. [2020-07-21 20:08:43,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3456 to 3213. [2020-07-21 20:08:43,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3213 states. [2020-07-21 20:08:43,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3213 states to 3213 states and 3885 transitions. [2020-07-21 20:08:43,336 INFO L78 Accepts]: Start accepts. Automaton has 3213 states and 3885 transitions. Word has length 169 [2020-07-21 20:08:43,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:43,336 INFO L479 AbstractCegarLoop]: Abstraction has 3213 states and 3885 transitions. [2020-07-21 20:08:43,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:08:43,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3213 states and 3885 transitions. [2020-07-21 20:08:43,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-21 20:08:43,345 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:43,345 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:08:43,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:43,559 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:43,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:43,560 INFO L82 PathProgramCache]: Analyzing trace with hash 26495599, now seen corresponding path program 1 times [2020-07-21 20:08:43,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:43,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1742805544] [2020-07-21 20:08:43,561 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 20:08:43,657 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:43,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:43,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:08:43,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:43,704 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:08:43,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:08:43,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1742805544] [2020-07-21 20:08:43,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:08:43,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:08:43,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770943639] [2020-07-21 20:08:43,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:08:43,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:43,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:08:43,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:08:43,707 INFO L87 Difference]: Start difference. First operand 3213 states and 3885 transitions. Second operand 3 states. [2020-07-21 20:08:44,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:44,290 INFO L93 Difference]: Finished difference Result 6267 states and 7621 transitions. [2020-07-21 20:08:44,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:08:44,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-07-21 20:08:44,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:44,305 INFO L225 Difference]: With dead ends: 6267 [2020-07-21 20:08:44,305 INFO L226 Difference]: Without dead ends: 3064 [2020-07-21 20:08:44,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 177 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 20:08:44,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3064 states. [2020-07-21 20:08:44,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3064 to 2918. [2020-07-21 20:08:44,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2918 states. [2020-07-21 20:08:44,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 3378 transitions. [2020-07-21 20:08:44,389 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 3378 transitions. Word has length 179 [2020-07-21 20:08:44,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:44,390 INFO L479 AbstractCegarLoop]: Abstraction has 2918 states and 3378 transitions. [2020-07-21 20:08:44,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:08:44,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 3378 transitions. [2020-07-21 20:08:44,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-07-21 20:08:44,399 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:08:44,400 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-07-21 20:08:44,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:44,615 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:08:44,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:08:44,615 INFO L82 PathProgramCache]: Analyzing trace with hash 830204512, now seen corresponding path program 1 times [2020-07-21 20:08:44,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:08:44,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759717496] [2020-07-21 20:08:44,616 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 20:08:44,742 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:08:44,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:08:44,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:08:44,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:08:44,801 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-07-21 20:08:44,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:08:44,908 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 129 proven. 45 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-07-21 20:08:44,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759717496] [2020-07-21 20:08:44,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:08:44,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:08:44,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207949537] [2020-07-21 20:08:44,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:08:44,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:08:44,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:08:44,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:08:44,940 INFO L87 Difference]: Start difference. First operand 2918 states and 3378 transitions. Second operand 6 states. [2020-07-21 20:08:45,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:08:45,818 INFO L93 Difference]: Finished difference Result 5536 states and 6438 transitions. [2020-07-21 20:08:45,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:08:45,819 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 235 [2020-07-21 20:08:45,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:08:45,819 INFO L225 Difference]: With dead ends: 5536 [2020-07-21 20:08:45,819 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:08:45,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 466 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:08:45,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:08:45,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:08:45,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:08:45,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:08:45,832 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 235 [2020-07-21 20:08:45,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:08:45,832 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:08:45,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:08:45,832 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:08:45,832 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:08:46,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:08:46,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:08:47,066 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2020-07-21 20:08:47,323 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 39 [2020-07-21 20:08:47,532 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 39 [2020-07-21 20:08:47,537 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:08:47,537 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 20:08:47,537 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:08:47,537 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,537 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,538 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,538 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,538 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,538 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 20:08:47,538 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 20:08:47,538 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 20:08:47,538 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 20:08:47,538 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 20:08:47,538 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 20:08:47,538 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 20:08:47,538 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 20:08:47,538 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 20:08:47,538 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 20:08:47,539 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:08:47,539 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:08:47,539 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 20:08:47,539 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,539 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,539 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,539 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,539 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 20:08:47,539 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,539 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 20:08:47,539 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 20:08:47,539 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 20:08:47,540 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 20:08:47,540 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 20:08:47,540 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 20:08:47,540 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 20:08:47,540 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:08:47,540 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:08:47,540 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 20:08:47,541 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 20:08:47,541 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 20:08:47,541 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:08:47,541 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:08:47,541 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 20:08:47,541 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,541 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,541 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,542 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,542 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,542 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 517) no Hoare annotation was computed. [2020-07-21 20:08:47,542 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:08:47,542 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 20:08:47,542 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:08:47,542 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 20:08:47,543 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 20:08:47,543 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 20:08:47,543 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 20:08:47,543 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 20:08:47,543 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 20:08:47,543 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 20:08:47,543 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 20:08:47,543 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,544 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,544 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,544 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,544 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,544 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 20:08:47,544 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 20:08:47,544 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 20:08:47,544 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 20:08:47,544 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 20:08:47,545 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 20:08:47,545 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 20:08:47,545 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 20:08:47,545 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 20:08:47,545 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 20:08:47,545 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 20:08:47,545 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 20:08:47,545 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 20:08:47,545 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,545 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,546 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,546 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,546 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,546 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 20:08:47,546 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 20:08:47,546 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 20:08:47,546 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 20:08:47,546 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 20:08:47,546 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 20:08:47,546 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 20:08:47,547 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 20:08:47,547 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 20:08:47,547 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 20:08:47,547 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 20:08:47,547 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 20:08:47,547 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 20:08:47,547 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:08:47,547 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 20:08:47,547 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:08:47,547 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,547 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,547 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,547 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,547 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 20:08:47,548 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,548 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:08:47,548 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,548 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:08:47,548 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:08:47,548 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:08:47,548 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,548 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,548 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 20:08:47,548 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 20:08:47,548 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 20:08:47,548 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 20:08:47,548 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 20:08:47,548 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 20:08:47,549 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 20:08:47,549 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 20:08:47,549 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 20:08:47,549 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 20:08:47,549 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 20:08:47,549 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,549 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,549 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,549 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,549 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,549 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,549 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 20:08:47,549 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 20:08:47,549 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 20:08:47,550 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 20:08:47,550 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 20:08:47,550 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 20:08:47,550 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 20:08:47,550 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 20:08:47,550 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 20:08:47,550 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 20:08:47,550 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 20:08:47,550 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,550 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,550 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,550 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,550 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,550 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,550 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 20:08:47,551 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 20:08:47,551 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 20:08:47,551 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 20:08:47,551 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 20:08:47,551 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 20:08:47,551 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 20:08:47,551 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 20:08:47,551 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 20:08:47,551 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 20:08:47,551 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 20:08:47,551 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 20:08:47,551 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 20:08:47,551 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 20:08:47,551 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,552 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,552 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,552 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse1 (<= ~a28~0 |old(~a28~0)|)) (.cse10 (<= 8 ~a17~0)) (.cse2 (= ~a19~0 |old(~a19~0)|)) (.cse12 (= ~a25~0 |old(~a25~0)|))) (let ((.cse6 (not (<= 11 |old(~a28~0)|))) (.cse3 (<= 11 ~a28~0)) (.cse11 (<= 9 ~a28~0)) (.cse8 (not (<= 9 |old(~a28~0)|))) (.cse15 (not (<= 10 |old(~a28~0)|))) (.cse14 (<= 10 ~a28~0)) (.cse7 (not (<= |old(~a28~0)| 10))) (.cse9 (not (<= 8 |old(~a17~0)|))) (.cse17 (and .cse1 .cse10 .cse2 .cse12)) (.cse13 (not (<= |old(~a19~0)| 0))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse16 (not (<= |old(~a28~0)| 7))) (.cse5 (not (= 1 |old(~a25~0)|))) (.cse4 (= 1 ~a25~0))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4) .cse5 .cse6) (or .cse0 .cse7 .cse8 .cse9 (and .cse1 .cse10 .cse2 .cse11 .cse12)) (or .cse13 .cse6 .cse3) (or .cse0 (and (<= ~a28~0 10) .cse14 .cse2) .cse7 .cse15) (or (and .cse1 .cse2 .cse11 .cse12) .cse8 .cse13) (or .cse0 .cse7 (and .cse1 .cse10 .cse2 .cse4) .cse9 .cse5) (or .cse13 .cse15 .cse14) (or .cse0 .cse16 .cse9 .cse17) (or .cse7 .cse9 .cse17 .cse13) (or .cse0 .cse16 .cse5 (and .cse1 .cse2 .cse4))))) [2020-07-21 20:08:47,552 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,552 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,552 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,552 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 20:08:47,552 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 20:08:47,552 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 20:08:47,552 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 20:08:47,552 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 20:08:47,553 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 20:08:47,553 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 20:08:47,553 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 20:08:47,553 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 20:08:47,553 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 20:08:47,553 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 20:08:47,553 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 20:08:47,553 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 20:08:47,553 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,553 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,553 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,553 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,553 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,553 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,554 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 20:08:47,554 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 20:08:47,554 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 20:08:47,554 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 20:08:47,554 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 20:08:47,554 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 20:08:47,554 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 20:08:47,554 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 20:08:47,554 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 20:08:47,554 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 20:08:47,554 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 20:08:47,554 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:08:47,554 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:08:47,554 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 20:08:47,555 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 20:08:47,555 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 20:08:47,555 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,555 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,555 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,555 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,555 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:08:47,555 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 20:08:47,555 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 20:08:47,555 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 20:08:47,555 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 20:08:47,555 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 20:08:47,555 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 20:08:47,555 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 20:08:47,556 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 20:08:47,556 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 20:08:47,556 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 20:08:47,556 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 20:08:47,556 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:08:47,556 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 20:08:47,556 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:08:47,556 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 20:08:47,557 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:08:47,557 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:08:47,557 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 20:08:47,557 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 20:08:47,557 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:08:47,557 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-21 20:08:47,557 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:08:47,557 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:08:47,558 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)) (not (<= 8 |old(~a17~0)|)) (and (<= ~a28~0 |old(~a28~0)|) (<= 8 ~a17~0) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|))) [2020-07-21 20:08:47,558 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse2 (<= ~a28~0 7)) (.cse5 (<= 9 ~a28~0)) (.cse4 (<= ~a28~0 10)) (.cse0 (= 1 ~a19~0)) (.cse1 (= 1 ~a25~0)) (.cse3 (<= 8 ~a17~0)) (.cse6 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= 11 ~a28~0) .cse1) (and .cse0 .cse2 .cse1) (and .cse0 .cse3 .cse4 .cse5) (and .cse0 .cse3 .cse2) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (and .cse6 .cse5) (and .cse0 .cse4 (<= 10 ~a28~0)) (and .cse0 .cse3 .cse1) (and .cse3 .cse6))) [2020-07-21 20:08:47,558 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:08:47,558 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:08:47,558 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse2 (<= ~a28~0 7)) (.cse5 (<= 9 ~a28~0)) (.cse4 (<= ~a28~0 10)) (.cse0 (= 1 ~a19~0)) (.cse1 (= 1 ~a25~0)) (.cse3 (<= 8 ~a17~0)) (.cse6 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= 11 ~a28~0) .cse1) (and .cse0 .cse2 .cse1) (and .cse0 .cse3 .cse4 .cse5) (and .cse0 .cse3 .cse2) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (and .cse6 .cse5) (and .cse0 .cse4 (<= 10 ~a28~0)) (and .cse0 .cse3 .cse1) (and .cse3 .cse6))) [2020-07-21 20:08:47,559 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 20:08:47,559 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 20:08:47,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:08:47 BoogieIcfgContainer [2020-07-21 20:08:47,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:08:47,582 INFO L168 Benchmark]: Toolchain (without parser) took 16517.92 ms. Allocated memory was 137.9 MB in the beginning and 476.1 MB in the end (delta: 338.2 MB). Free memory was 100.8 MB in the beginning and 376.3 MB in the end (delta: -275.6 MB). Peak memory consumption was 302.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:08:47,583 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 20:08:47,584 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.43 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.4 MB in the beginning and 170.1 MB in the end (delta: -69.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:08:47,584 INFO L168 Benchmark]: Boogie Preprocessor took 113.83 ms. Allocated memory is still 202.9 MB. Free memory was 170.1 MB in the beginning and 165.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-21 20:08:47,585 INFO L168 Benchmark]: RCFGBuilder took 1302.84 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 165.0 MB in the beginning and 180.1 MB in the end (delta: -15.1 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:08:47,586 INFO L168 Benchmark]: TraceAbstraction took 14350.74 ms. Allocated memory was 235.4 MB in the beginning and 476.1 MB in the end (delta: 240.6 MB). Free memory was 180.1 MB in the beginning and 376.3 MB in the end (delta: -196.2 MB). Peak memory consumption was 284.7 MB. Max. memory is 7.1 GB. [2020-07-21 20:08:47,589 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.43 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.4 MB in the beginning and 170.1 MB in the end (delta: -69.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.83 ms. Allocated memory is still 202.9 MB. Free memory was 170.1 MB in the beginning and 165.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1302.84 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 165.0 MB in the beginning and 180.1 MB in the end (delta: -15.1 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14350.74 ms. Allocated memory was 235.4 MB in the beginning and 476.1 MB in the end (delta: 240.6 MB). Free memory was 180.1 MB in the beginning and 376.3 MB in the end (delta: -196.2 MB). Peak memory consumption was 284.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 517]: 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)) || ((1 == a19 && 11 <= a28) && 1 == a25)) || ((1 == a19 && a28 <= 7) && 1 == a25)) || (((1 == a19 && 8 <= a17) && a28 <= 10) && 9 <= a28)) || ((1 == a19 && 8 <= a17) && a28 <= 7)) || !(\old(a28) <= 7)) || !(8 <= \old(a17))) || (a19 <= 0 && 9 <= a28)) || ((1 == a19 && a28 <= 10) && 10 <= a28)) || ((1 == a19 && 8 <= a17) && 1 == a25)) || (8 <= a17 && a19 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.7s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1142 SDtfs, 2757 SDslu, 517 SDs, 0 SdLazy, 5472 SolverSat, 989 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2033 GetRequests, 1992 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3213occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 710 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 110 PreInvPairs, 160 NumberOfFragments, 461 HoareAnnotationTreeSize, 110 FomulaSimplifications, 4126 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1659 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1451 NumberOfCodeBlocks, 1451 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2008 ConstructedInterpolants, 0 QuantifiedInterpolants, 647116 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3512 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 750/805 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...