/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 NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:29:10,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:29:10,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:29:10,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:29:10,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:29:10,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:29:10,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:29:10,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:29:10,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:29:10,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:29:10,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:29:10,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:29:10,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:29:10,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:29:10,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:29:10,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:29:10,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:29:10,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:29:10,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:29:10,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:29:10,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:29:10,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:29:10,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:29:10,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:29:10,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:29:10,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:29:10,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:29:10,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:29:10,853 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 11:29:10,882 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:29:10,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:29:10,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:29:10,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:29:10,886 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:29:10,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:29:10,886 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:29:10,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:29:10,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:29:10,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:29:10,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:29:10,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:29:10,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:29:10,888 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:29:10,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:29:10,889 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:29:10,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:29:10,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:29:10,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:29:10,890 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:29:10,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:29:10,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:29:10,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:29:10,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:29:10,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:29:10,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:29:10,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:10,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:29:10,895 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:29:10,895 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 -> NOT_INCREMENTALLY [2020-07-21 11:29:11,192 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:29:11,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:29:11,208 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:29:11,209 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:29:11,210 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:29:11,210 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label06.c [2020-07-21 11:29:11,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4841d6ee8/3271c7fb89864ba886dcc9c697211ef3/FLAGd5817f2f2 [2020-07-21 11:29:11,844 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:29:11,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label06.c [2020-07-21 11:29:11,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4841d6ee8/3271c7fb89864ba886dcc9c697211ef3/FLAGd5817f2f2 [2020-07-21 11:29:12,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4841d6ee8/3271c7fb89864ba886dcc9c697211ef3 [2020-07-21 11:29:12,117 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:29:12,120 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:29:12,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:29:12,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:29:12,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:29:12,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:29:12" (1/1) ... [2020-07-21 11:29:12,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f6be4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:12, skipping insertion in model container [2020-07-21 11:29:12,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:29:12" (1/1) ... [2020-07-21 11:29:12,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:29:12,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:29:12,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:29:12,600 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:29:12,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:29:12,906 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:29:12,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:12 WrapperNode [2020-07-21 11:29:12,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:29:12,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:29:12,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:29:12,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:29:12,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:12" (1/1) ... [2020-07-21 11:29:12,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:12" (1/1) ... [2020-07-21 11:29:12,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:12" (1/1) ... [2020-07-21 11:29:12,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:12" (1/1) ... [2020-07-21 11:29:12,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:12" (1/1) ... [2020-07-21 11:29:12,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:12" (1/1) ... [2020-07-21 11:29:13,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:12" (1/1) ... [2020-07-21 11:29:13,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:29:13,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:29:13,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:29:13,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:29:13,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:12" (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 11:29:13,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:29:13,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:29:13,072 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:29:13,072 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:29:13,072 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:29:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:29:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:29:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:29:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:29:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:29:13,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:29:14,269 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:29:14,270 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:29:14,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:29:14 BoogieIcfgContainer [2020-07-21 11:29:14,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:29:14,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:29:14,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:29:14,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:29:14,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:29:12" (1/3) ... [2020-07-21 11:29:14,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66af00c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:29:14, skipping insertion in model container [2020-07-21 11:29:14,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:29:12" (2/3) ... [2020-07-21 11:29:14,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66af00c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:29:14, skipping insertion in model container [2020-07-21 11:29:14,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:29:14" (3/3) ... [2020-07-21 11:29:14,285 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label06.c [2020-07-21 11:29:14,297 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:29:14,308 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:29:14,325 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:29:14,352 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:29:14,352 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:29:14,352 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:29:14,353 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:29:14,353 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:29:14,353 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:29:14,353 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:29:14,354 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:29:14,377 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 11:29:14,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-21 11:29:14,384 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:14,385 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] [2020-07-21 11:29:14,386 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:14,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:14,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1307500665, now seen corresponding path program 1 times [2020-07-21 11:29:14,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:14,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1304676930] [2020-07-21 11:29:14,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:29:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:14,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:29:14,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:14,623 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 11:29:14,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:14,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1304676930] [2020-07-21 11:29:14,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:14,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:29:14,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447014229] [2020-07-21 11:29:14,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:29:14,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:14,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:29:14,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:29:14,650 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 11:29:15,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:15,652 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-21 11:29:15,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:29:15,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-07-21 11:29:15,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:15,670 INFO L225 Difference]: With dead ends: 586 [2020-07-21 11:29:15,670 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 11:29:15,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 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 11:29:15,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 11:29:15,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 11:29:15,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 11:29:15,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 426 transitions. [2020-07-21 11:29:15,749 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 426 transitions. Word has length 30 [2020-07-21 11:29:15,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:15,749 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 426 transitions. [2020-07-21 11:29:15,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:29:15,750 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 426 transitions. [2020-07-21 11:29:15,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-07-21 11:29:15,754 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:15,755 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] [2020-07-21 11:29:15,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:15,969 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:15,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:15,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1592388862, now seen corresponding path program 1 times [2020-07-21 11:29:15,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:15,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072191958] [2020-07-21 11:29:15,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:29:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:16,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:29:16,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:16,095 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 11:29:16,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:16,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072191958] [2020-07-21 11:29:16,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:16,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:29:16,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601787481] [2020-07-21 11:29:16,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:29:16,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:16,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:29:16,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:29:16,100 INFO L87 Difference]: Start difference. First operand 294 states and 426 transitions. Second operand 5 states. [2020-07-21 11:29:17,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:17,067 INFO L93 Difference]: Finished difference Result 890 states and 1316 transitions. [2020-07-21 11:29:17,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:29:17,071 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-07-21 11:29:17,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:17,076 INFO L225 Difference]: With dead ends: 890 [2020-07-21 11:29:17,077 INFO L226 Difference]: Without dead ends: 602 [2020-07-21 11:29:17,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:29:17,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-07-21 11:29:17,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 590. [2020-07-21 11:29:17,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-07-21 11:29:17,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 775 transitions. [2020-07-21 11:29:17,141 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 775 transitions. Word has length 104 [2020-07-21 11:29:17,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:17,141 INFO L479 AbstractCegarLoop]: Abstraction has 590 states and 775 transitions. [2020-07-21 11:29:17,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:29:17,142 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 775 transitions. [2020-07-21 11:29:17,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-07-21 11:29:17,146 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:17,146 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] [2020-07-21 11:29:17,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:17,361 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:17,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:17,362 INFO L82 PathProgramCache]: Analyzing trace with hash -2136138939, now seen corresponding path program 1 times [2020-07-21 11:29:17,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:17,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1906562543] [2020-07-21 11:29:17,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:29:17,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:17,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:17,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:17,474 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 11:29:17,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:17,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1906562543] [2020-07-21 11:29:17,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:17,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:29:17,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694459602] [2020-07-21 11:29:17,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:29:17,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:17,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:29:17,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:29:17,479 INFO L87 Difference]: Start difference. First operand 590 states and 775 transitions. Second operand 3 states. [2020-07-21 11:29:18,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:18,179 INFO L93 Difference]: Finished difference Result 1025 states and 1394 transitions. [2020-07-21 11:29:18,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:29:18,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-07-21 11:29:18,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:18,187 INFO L225 Difference]: With dead ends: 1025 [2020-07-21 11:29:18,187 INFO L226 Difference]: Without dead ends: 1023 [2020-07-21 11:29:18,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 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 11:29:18,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2020-07-21 11:29:18,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 1023. [2020-07-21 11:29:18,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2020-07-21 11:29:18,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1392 transitions. [2020-07-21 11:29:18,233 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1392 transitions. Word has length 109 [2020-07-21 11:29:18,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:18,234 INFO L479 AbstractCegarLoop]: Abstraction has 1023 states and 1392 transitions. [2020-07-21 11:29:18,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:29:18,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1392 transitions. [2020-07-21 11:29:18,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-21 11:29:18,242 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:18,242 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, 1, 1, 1, 1, 1] [2020-07-21 11:29:18,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:18,458 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:18,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:18,459 INFO L82 PathProgramCache]: Analyzing trace with hash -831400030, now seen corresponding path program 1 times [2020-07-21 11:29:18,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:18,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401216771] [2020-07-21 11:29:18,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:29:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:18,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:29:18,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:18,648 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 11:29:18,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:18,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401216771] [2020-07-21 11:29:18,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:18,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:29:18,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955317557] [2020-07-21 11:29:18,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:29:18,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:18,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:29:18,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:29:18,655 INFO L87 Difference]: Start difference. First operand 1023 states and 1392 transitions. Second operand 5 states. [2020-07-21 11:29:19,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:19,652 INFO L93 Difference]: Finished difference Result 2650 states and 3703 transitions. [2020-07-21 11:29:19,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:29:19,653 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-07-21 11:29:19,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:19,663 INFO L225 Difference]: With dead ends: 2650 [2020-07-21 11:29:19,663 INFO L226 Difference]: Without dead ends: 1633 [2020-07-21 11:29:19,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:29:19,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2020-07-21 11:29:19,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1470. [2020-07-21 11:29:19,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1470 states. [2020-07-21 11:29:19,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 1920 transitions. [2020-07-21 11:29:19,721 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 1920 transitions. Word has length 152 [2020-07-21 11:29:19,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:19,722 INFO L479 AbstractCegarLoop]: Abstraction has 1470 states and 1920 transitions. [2020-07-21 11:29:19,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:29:19,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 1920 transitions. [2020-07-21 11:29:19,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-07-21 11:29:19,726 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:19,726 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:29:19,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:19,931 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:19,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:19,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1765771600, now seen corresponding path program 1 times [2020-07-21 11:29:19,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:19,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190451304] [2020-07-21 11:29:19,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:29:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:20,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:20,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:20,106 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:20,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:20,253 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:20,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190451304] [2020-07-21 11:29:20,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:20,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:29:20,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774248295] [2020-07-21 11:29:20,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:29:20,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:20,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:29:20,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:29:20,256 INFO L87 Difference]: Start difference. First operand 1470 states and 1920 transitions. Second operand 7 states. [2020-07-21 11:29:21,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:21,689 INFO L93 Difference]: Finished difference Result 3816 states and 5119 transitions. [2020-07-21 11:29:21,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 11:29:21,690 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2020-07-21 11:29:21,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:21,706 INFO L225 Difference]: With dead ends: 3816 [2020-07-21 11:29:21,707 INFO L226 Difference]: Without dead ends: 2352 [2020-07-21 11:29:21,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 377 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 11:29:21,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2020-07-21 11:29:21,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 2201. [2020-07-21 11:29:21,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2201 states. [2020-07-21 11:29:21,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 2782 transitions. [2020-07-21 11:29:21,795 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 2782 transitions. Word has length 191 [2020-07-21 11:29:21,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:21,796 INFO L479 AbstractCegarLoop]: Abstraction has 2201 states and 2782 transitions. [2020-07-21 11:29:21,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:29:21,796 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 2782 transitions. [2020-07-21 11:29:21,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-07-21 11:29:21,800 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:21,801 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 11:29:22,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:22,015 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:22,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:22,016 INFO L82 PathProgramCache]: Analyzing trace with hash -439866795, now seen corresponding path program 1 times [2020-07-21 11:29:22,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:22,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728932722] [2020-07-21 11:29:22,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:29:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:22,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:22,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:22,154 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 114 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:22,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:22,271 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 114 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:29:22,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728932722] [2020-07-21 11:29:22,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:22,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:29:22,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878675790] [2020-07-21 11:29:22,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:29:22,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:22,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:29:22,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:29:22,274 INFO L87 Difference]: Start difference. First operand 2201 states and 2782 transitions. Second operand 6 states. [2020-07-21 11:29:23,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:23,321 INFO L93 Difference]: Finished difference Result 4849 states and 6224 transitions. [2020-07-21 11:29:23,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:29:23,322 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 198 [2020-07-21 11:29:23,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:23,338 INFO L225 Difference]: With dead ends: 4849 [2020-07-21 11:29:23,338 INFO L226 Difference]: Without dead ends: 2654 [2020-07-21 11:29:23,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 390 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 11:29:23,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2020-07-21 11:29:23,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 2646. [2020-07-21 11:29:23,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2646 states. [2020-07-21 11:29:23,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 3363 transitions. [2020-07-21 11:29:23,426 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 3363 transitions. Word has length 198 [2020-07-21 11:29:23,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:23,427 INFO L479 AbstractCegarLoop]: Abstraction has 2646 states and 3363 transitions. [2020-07-21 11:29:23,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:29:23,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 3363 transitions. [2020-07-21 11:29:23,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-07-21 11:29:23,433 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:23,433 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-07-21 11:29:23,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:23,649 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:23,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:23,649 INFO L82 PathProgramCache]: Analyzing trace with hash -674244364, now seen corresponding path program 1 times [2020-07-21 11:29:23,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:23,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426276581] [2020-07-21 11:29:23,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:29:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:23,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:23,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:23,815 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-21 11:29:23,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:23,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426276581] [2020-07-21 11:29:23,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:23,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:29:23,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321210279] [2020-07-21 11:29:23,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:29:23,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:23,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:29:23,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:29:23,818 INFO L87 Difference]: Start difference. First operand 2646 states and 3363 transitions. Second operand 3 states. [2020-07-21 11:29:24,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:24,398 INFO L93 Difference]: Finished difference Result 5286 states and 6729 transitions. [2020-07-21 11:29:24,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:29:24,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2020-07-21 11:29:24,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:24,412 INFO L225 Difference]: With dead ends: 5286 [2020-07-21 11:29:24,412 INFO L226 Difference]: Without dead ends: 2646 [2020-07-21 11:29:24,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 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 11:29:24,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2020-07-21 11:29:24,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 2215. [2020-07-21 11:29:24,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2215 states. [2020-07-21 11:29:24,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 2632 transitions. [2020-07-21 11:29:24,498 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 2632 transitions. Word has length 205 [2020-07-21 11:29:24,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:24,499 INFO L479 AbstractCegarLoop]: Abstraction has 2215 states and 2632 transitions. [2020-07-21 11:29:24,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:29:24,499 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 2632 transitions. [2020-07-21 11:29:24,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-07-21 11:29:24,504 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:24,504 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-07-21 11:29:24,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:24,720 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:24,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:24,720 INFO L82 PathProgramCache]: Analyzing trace with hash 29112225, now seen corresponding path program 1 times [2020-07-21 11:29:24,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:24,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1369479217] [2020-07-21 11:29:24,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:29:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:24,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:24,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:24,839 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-07-21 11:29:24,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:29:24,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1369479217] [2020-07-21 11:29:24,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:29:24,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:29:24,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350259399] [2020-07-21 11:29:24,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:29:24,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:24,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:29:24,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:29:24,842 INFO L87 Difference]: Start difference. First operand 2215 states and 2632 transitions. Second operand 3 states. [2020-07-21 11:29:25,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:25,487 INFO L93 Difference]: Finished difference Result 2646 states and 3150 transitions. [2020-07-21 11:29:25,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:29:25,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2020-07-21 11:29:25,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:25,491 INFO L225 Difference]: With dead ends: 2646 [2020-07-21 11:29:25,491 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:29:25,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 206 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 11:29:25,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:29:25,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:29:25,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:29:25,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:29:25,497 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 208 [2020-07-21 11:29:25,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:25,498 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:29:25,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:29:25,498 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:29:25,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:29:25,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:25,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:29:26,569 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 54 [2020-07-21 11:29:26,728 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 36 [2020-07-21 11:29:26,886 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 36 [2020-07-21 11:29:26,889 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:29:26,890 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= ~a19~0 |old(~a19~0)|)) [2020-07-21 11:29:26,890 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:29:26,890 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 11:29:26,890 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,891 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,891 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,891 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,891 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,891 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,891 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 11:29:26,891 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 11:29:26,892 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 11:29:26,892 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 11:29:26,892 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 11:29:26,892 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 11:29:26,892 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 11:29:26,892 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 11:29:26,892 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 11:29:26,892 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 11:29:26,893 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 11:29:26,893 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,893 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,893 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,893 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,893 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,893 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 11:29:26,894 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 11:29:26,894 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 11:29:26,894 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 11:29:26,894 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 11:29:26,894 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 11:29:26,894 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 11:29:26,894 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 11:29:26,895 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 11:29:26,895 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 11:29:26,895 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 11:29:26,895 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 11:29:26,895 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 11:29:26,895 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2020-07-21 11:29:26,895 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 11:29:26,896 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,896 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,896 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,896 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,896 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,896 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 11:29:26,896 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 11:29:26,897 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 11:29:26,897 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 11:29:26,897 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 11:29:26,897 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 11:29:26,897 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 11:29:26,897 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 11:29:26,897 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 11:29:26,898 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 11:29:26,898 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,898 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,898 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,898 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,898 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,898 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 11:29:26,898 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 11:29:26,899 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 11:29:26,899 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 11:29:26,899 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 11:29:26,899 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 11:29:26,899 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 11:29:26,899 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 11:29:26,899 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 11:29:26,899 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 11:29:26,900 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 11:29:26,900 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 11:29:26,900 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 11:29:26,900 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,900 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,900 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,900 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,900 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,901 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 11:29:26,901 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 11:29:26,901 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 11:29:26,901 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 11:29:26,901 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 11:29:26,901 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 11:29:26,901 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 11:29:26,902 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 11:29:26,902 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 11:29:26,902 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,902 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,902 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,902 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,902 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,902 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,903 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,903 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 11:29:26,903 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 11:29:26,903 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 11:29:26,903 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 11:29:26,903 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 11:29:26,903 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 11:29:26,903 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 11:29:26,904 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 11:29:26,904 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 11:29:26,904 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 11:29:26,904 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 11:29:26,904 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 11:29:26,904 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 11:29:26,904 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,904 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,905 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,905 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,905 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 11:29:26,905 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,905 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,905 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 11:29:26,905 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 11:29:26,906 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 11:29:26,906 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 11:29:26,906 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 11:29:26,906 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 11:29:26,906 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 11:29:26,906 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 11:29:26,906 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 11:29:26,907 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 11:29:26,907 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 11:29:26,907 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 11:29:26,907 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 11:29:26,907 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,907 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,907 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,907 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,908 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,908 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,908 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 11:29:26,908 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 11:29:26,908 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 11:29:26,908 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 11:29:26,908 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 11:29:26,908 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 11:29:26,908 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 11:29:26,909 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 11:29:26,909 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 11:29:26,909 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 11:29:26,909 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 11:29:26,909 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a1~0)| 23))) (.cse9 (<= ~a1~0 23)) (.cse6 (<= 2 ~a10~0)) (.cse12 (<= 8 ~a19~0)) (.cse10 (not (<= 8 |old(~a19~0)|))) (.cse7 (not (< |old(~a10~0)| 4))) (.cse3 (not (<= |old(~a19~0)| 9))) (.cse8 (not (<= 2 |old(~a10~0)|))) (.cse4 (<= ~a10~0 |old(~a10~0)|)) (.cse1 (<= 7 ~a19~0)) (.cse5 (<= ~a19~0 |old(~a19~0)|)) (.cse2 (not (<= 7 |old(~a19~0)|))) (.cse11 (not (<= |old(~a10~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (and .cse4 .cse5 .cse6) .cse7 .cse3 .cse8) (or .cse0 .cse9 .cse10 .cse11) (or (and .cse4 .cse9 .cse5) .cse0 (not (<= |old(~a10~0)| 0))) (or (and .cse4 .cse12 .cse5 .cse6) .cse10 .cse3 .cse8) (or .cse0 (and .cse4 .cse9 .cse5 .cse6) .cse3 .cse8) (or .cse12 .cse10 .cse11) (or .cse1 .cse2 .cse7 .cse3 .cse8) (or (and .cse4 .cse1 .cse5) .cse2 .cse11))) [2020-07-21 11:29:26,910 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 11:29:26,910 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 11:29:26,910 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 11:29:26,910 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,910 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,910 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,910 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,910 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,911 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,911 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 11:29:26,911 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 11:29:26,911 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 11:29:26,911 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 11:29:26,911 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 11:29:26,911 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 11:29:26,911 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 11:29:26,912 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 11:29:26,912 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 11:29:26,912 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 11:29:26,912 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 11:29:26,912 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 11:29:26,912 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 11:29:26,912 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,912 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,912 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,913 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,913 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,913 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,913 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 11:29:26,913 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 11:29:26,913 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 11:29:26,913 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 11:29:26,913 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 11:29:26,914 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 11:29:26,914 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 11:29:26,914 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 11:29:26,914 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 11:29:26,914 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 11:29:26,914 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 11:29:26,914 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 11:29:26,914 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,914 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,914 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,915 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,915 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,915 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 11:29:26,915 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 11:29:26,915 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 11:29:26,915 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 11:29:26,915 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 11:29:26,915 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 11:29:26,916 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 11:29:26,916 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 11:29:26,916 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 11:29:26,916 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 11:29:26,916 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 11:29:26,916 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 11:29:26,916 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 11:29:26,916 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:29:26,917 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 8 ~a19~0) (<= ~a1~0 23)) [2020-07-21 11:29:26,917 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:29:26,917 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:29:26,917 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (and (<= ~a10~0 |old(~a10~0)|) (<= 8 ~a19~0) (<= ~a1~0 23) (<= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 8 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9))) [2020-07-21 11:29:26,917 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 11:29:26,917 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a1~0 23)) (.cse1 (<= ~a19~0 9)) (.cse2 (<= 2 ~a10~0))) (or (and (<= ~a10~0 1) (<= 7 ~a19~0)) (not (<= |old(~a1~0)| 23)) (and (<= ~a10~0 0) .cse0) (not (<= |old(~a10~0)| 0)) (not (<= 8 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and .cse1 .cse0 .cse2) (and .cse1 (<= 8 ~a19~0)) (and .cse1 .cse2 (< ~a10~0 4)))) [2020-07-21 11:29:26,918 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 11:29:26,918 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 11:29:26,918 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a1~0 23)) (.cse1 (<= ~a19~0 9)) (.cse2 (<= 2 ~a10~0))) (or (and (<= ~a10~0 1) (<= 7 ~a19~0)) (not (<= |old(~a1~0)| 23)) (and (<= ~a10~0 0) .cse0) (not (<= |old(~a10~0)| 0)) (not (<= 8 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and .cse1 .cse0 .cse2) (and .cse1 (<= 8 ~a19~0)) (and .cse1 .cse2 (< ~a10~0 4)))) [2020-07-21 11:29:26,918 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 11:29:26,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:29:26 BoogieIcfgContainer [2020-07-21 11:29:26,939 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:29:26,941 INFO L168 Benchmark]: Toolchain (without parser) took 14821.62 ms. Allocated memory was 145.2 MB in the beginning and 415.8 MB in the end (delta: 270.5 MB). Free memory was 100.2 MB in the beginning and 144.0 MB in the end (delta: -43.9 MB). Peak memory consumption was 226.7 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:26,942 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 145.2 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 11:29:26,942 INFO L168 Benchmark]: CACSL2BoogieTranslator took 786.23 ms. Allocated memory was 145.2 MB in the beginning and 206.6 MB in the end (delta: 61.3 MB). Free memory was 99.8 MB in the beginning and 175.5 MB in the end (delta: -75.7 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:26,943 INFO L168 Benchmark]: Boogie Preprocessor took 104.48 ms. Allocated memory is still 206.6 MB. Free memory was 175.5 MB in the beginning and 170.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:26,944 INFO L168 Benchmark]: RCFGBuilder took 1264.19 ms. Allocated memory was 206.6 MB in the beginning and 238.6 MB in the end (delta: 32.0 MB). Free memory was 170.5 MB in the beginning and 186.9 MB in the end (delta: -16.4 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:26,945 INFO L168 Benchmark]: TraceAbstraction took 12661.09 ms. Allocated memory was 238.6 MB in the beginning and 415.8 MB in the end (delta: 177.2 MB). Free memory was 186.9 MB in the beginning and 144.0 MB in the end (delta: 42.8 MB). Peak memory consumption was 220.0 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:26,952 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 145.2 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 786.23 ms. Allocated memory was 145.2 MB in the beginning and 206.6 MB in the end (delta: 61.3 MB). Free memory was 99.8 MB in the beginning and 175.5 MB in the end (delta: -75.7 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.48 ms. Allocated memory is still 206.6 MB. Free memory was 175.5 MB in the beginning and 170.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1264.19 ms. Allocated memory was 206.6 MB in the beginning and 238.6 MB in the end (delta: 32.0 MB). Free memory was 170.5 MB in the beginning and 186.9 MB in the end (delta: -16.4 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12661.09 ms. Allocated memory was 238.6 MB in the beginning and 415.8 MB in the end (delta: 177.2 MB). Free memory was 186.9 MB in the beginning and 144.0 MB in the end (delta: 42.8 MB). Peak memory consumption was 220.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 76]: 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: 582]: Loop Invariant Derived loop invariant: ((((((((a10 <= 1 && 7 <= a19) || !(\old(a1) <= 23)) || (a10 <= 0 && a1 <= 23)) || !(\old(a10) <= 0)) || !(8 <= \old(a19))) || !(\old(a19) <= 9)) || ((a19 <= 9 && a1 <= 23) && 2 <= a10)) || (a19 <= 9 && 8 <= a19)) || ((a19 <= 9 && 2 <= a10) && a10 < 4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.3s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 376 SDtfs, 2319 SDslu, 193 SDs, 0 SdLazy, 4098 SolverSat, 1005 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1595 GetRequests, 1559 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2646occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 765 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 77 PreInvPairs, 113 NumberOfFragments, 345 HoareAnnotationTreeSize, 77 FomulaSimplifications, 1772 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1484 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1197 NumberOfCodeBlocks, 1197 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1576 ConstructedInterpolants, 0 QuantifiedInterpolants, 635260 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2406 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 794/802 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...