/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label55.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 23:24:24,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 23:24:24,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 23:24:24,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-19 23:24:24,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 23:24:24,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 23:24:24,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 23:24:24,876 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 [2020-07-19 23:24:24,901 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:24:24,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:24:24,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:24:24,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:24:24,908 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:24:24,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:24:24,908 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:24:24,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:24:24,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:24:24,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:24:24,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:24:24,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:24:24,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:24:24,911 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:24:24,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:24:24,911 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:24:24,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:24:24,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:24:24,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:24:24,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:24:24,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:24:24,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:24:24,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:24:24,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:24:24,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:24:24,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:24:24,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:24:24,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:24:24,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:24:24,914 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 23:24:25,202 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:24:25,218 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:24:25,221 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:24:25,222 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:24:25,223 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:24:25,223 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label55.c [2020-07-19 23:24:25,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab1a049ac/3c9b72d7e7724d679ff466867693ddfa/FLAGef6bc9966 [2020-07-19 23:24:25,838 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:24:25,839 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label55.c [2020-07-19 23:24:25,852 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab1a049ac/3c9b72d7e7724d679ff466867693ddfa/FLAGef6bc9966 [2020-07-19 23:24:26,116 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab1a049ac/3c9b72d7e7724d679ff466867693ddfa [2020-07-19 23:24:26,125 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:24:26,127 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:24:26,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:24:26,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:24:26,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:24:26,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:24:26" (1/1) ... [2020-07-19 23:24:26,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5957ebad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:26, skipping insertion in model container [2020-07-19 23:24:26,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:24:26" (1/1) ... [2020-07-19 23:24:26,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:24:26,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:24:26,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:24:26,592 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:24:26,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:24:26,816 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:24:26,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:26 WrapperNode [2020-07-19 23:24:26,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:24:26,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:24:26,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:24:26,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:24:26,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:26" (1/1) ... [2020-07-19 23:24:26,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:26" (1/1) ... [2020-07-19 23:24:26,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:26" (1/1) ... [2020-07-19 23:24:26,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:26" (1/1) ... [2020-07-19 23:24:26,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:26" (1/1) ... [2020-07-19 23:24:26,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:26" (1/1) ... [2020-07-19 23:24:26,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:26" (1/1) ... [2020-07-19 23:24:26,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:24:26,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:24:26,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:24:26,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:24:26,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:26" (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 [2020-07-19 23:24:26,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:24:26,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:24:26,986 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-19 23:24:26,986 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:24:26,987 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-19 23:24:26,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:24:26,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 23:24:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-19 23:24:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:24:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:24:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:24:28,113 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:24:28,113 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-19 23:24:28,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:24:28 BoogieIcfgContainer [2020-07-19 23:24:28,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:24:28,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:24:28,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:24:28,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:24:28,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:24:26" (1/3) ... [2020-07-19 23:24:28,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c4ed2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:24:28, skipping insertion in model container [2020-07-19 23:24:28,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:24:26" (2/3) ... [2020-07-19 23:24:28,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c4ed2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:24:28, skipping insertion in model container [2020-07-19 23:24:28,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:24:28" (3/3) ... [2020-07-19 23:24:28,127 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label55.c [2020-07-19 23:24:28,138 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:24:28,146 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:24:28,160 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:24:28,186 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:24:28,186 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:24:28,186 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:24:28,187 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:24:28,187 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:24:28,187 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:24:28,187 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:24:28,187 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:24:28,210 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-19 23:24:28,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-07-19 23:24:28,223 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:24:28,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:24:28,225 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:24:28,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:24:28,231 INFO L82 PathProgramCache]: Analyzing trace with hash -462333177, now seen corresponding path program 1 times [2020-07-19 23:24:28,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:24:28,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934334083] [2020-07-19 23:24:28,242 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@57e16f1 [2020-07-19 23:24:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:24:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:24:28,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:24:28,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934334083] [2020-07-19 23:24:28,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:24:28,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 23:24:28,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882086072] [2020-07-19 23:24:28,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 23:24:28,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:24:28,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 23:24:28,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 23:24:28,859 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-07-19 23:24:30,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:24:30,234 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-07-19 23:24:30,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 23:24:30,236 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 117 [2020-07-19 23:24:30,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:24:30,255 INFO L225 Difference]: With dead ends: 557 [2020-07-19 23:24:30,255 INFO L226 Difference]: Without dead ends: 286 [2020-07-19 23:24:30,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:24:30,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-07-19 23:24:30,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-07-19 23:24:30,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-07-19 23:24:30,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 408 transitions. [2020-07-19 23:24:30,384 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 408 transitions. Word has length 117 [2020-07-19 23:24:30,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:24:30,386 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 408 transitions. [2020-07-19 23:24:30,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 23:24:30,387 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 408 transitions. [2020-07-19 23:24:30,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-19 23:24:30,391 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:24:30,391 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:24:30,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:24:30,392 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:24:30,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:24:30,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1604702730, now seen corresponding path program 1 times [2020-07-19 23:24:30,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:24:30,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161838478] [2020-07-19 23:24:30,393 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@57e16f1 [2020-07-19 23:24:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:24:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:24:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:24:30,636 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:24:30,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161838478] [2020-07-19 23:24:30,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:24:30,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 23:24:30,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143568619] [2020-07-19 23:24:30,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 23:24:30,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:24:30,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 23:24:30,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:24:30,641 INFO L87 Difference]: Start difference. First operand 280 states and 408 transitions. Second operand 8 states. [2020-07-19 23:24:32,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:24:32,428 INFO L93 Difference]: Finished difference Result 987 states and 1481 transitions. [2020-07-19 23:24:32,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 23:24:32,429 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 126 [2020-07-19 23:24:32,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:24:32,436 INFO L225 Difference]: With dead ends: 987 [2020-07-19 23:24:32,436 INFO L226 Difference]: Without dead ends: 713 [2020-07-19 23:24:32,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-07-19 23:24:32,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2020-07-19 23:24:32,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 699. [2020-07-19 23:24:32,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-07-19 23:24:32,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 978 transitions. [2020-07-19 23:24:32,487 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 978 transitions. Word has length 126 [2020-07-19 23:24:32,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:24:32,488 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 978 transitions. [2020-07-19 23:24:32,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 23:24:32,488 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 978 transitions. [2020-07-19 23:24:32,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-19 23:24:32,495 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:24:32,496 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:24:32,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 23:24:32,496 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:24:32,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:24:32,497 INFO L82 PathProgramCache]: Analyzing trace with hash -365499969, now seen corresponding path program 1 times [2020-07-19 23:24:32,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:24:32,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81013339] [2020-07-19 23:24:32,499 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@57e16f1 [2020-07-19 23:24:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:24:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:24:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:24:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:24:32,729 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 23:24:32,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81013339] [2020-07-19 23:24:32,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385770728] [2020-07-19 23:24:32,731 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@111a6b19 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:24:32,890 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@111a6b19 issued 4 check-sat command(s) [2020-07-19 23:24:32,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:24:32,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:24:32,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:24:32,992 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-19 23:24:32,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:24:32,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-07-19 23:24:32,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662558910] [2020-07-19 23:24:32,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:24:32,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:24:32,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:24:32,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:24:32,995 INFO L87 Difference]: Start difference. First operand 699 states and 978 transitions. Second operand 3 states. [2020-07-19 23:24:33,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:24:33,590 INFO L93 Difference]: Finished difference Result 2079 states and 2984 transitions. [2020-07-19 23:24:33,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:24:33,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2020-07-19 23:24:33,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:24:33,600 INFO L225 Difference]: With dead ends: 2079 [2020-07-19 23:24:33,601 INFO L226 Difference]: Without dead ends: 1386 [2020-07-19 23:24:33,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:24:33,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2020-07-19 23:24:33,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1112. [2020-07-19 23:24:33,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1112 states. [2020-07-19 23:24:33,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1528 transitions. [2020-07-19 23:24:33,695 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1528 transitions. Word has length 151 [2020-07-19 23:24:33,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:24:33,699 INFO L479 AbstractCegarLoop]: Abstraction has 1112 states and 1528 transitions. [2020-07-19 23:24:33,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:24:33,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1528 transitions. [2020-07-19 23:24:33,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-19 23:24:33,714 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:24:33,714 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:24:33,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-19 23:24:33,930 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:24:33,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:24:33,931 INFO L82 PathProgramCache]: Analyzing trace with hash 952013651, now seen corresponding path program 1 times [2020-07-19 23:24:33,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:24:33,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368035255] [2020-07-19 23:24:33,932 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@57e16f1 [2020-07-19 23:24:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:24:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:24:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:24:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:24:34,277 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 85 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 23:24:34,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368035255] [2020-07-19 23:24:34,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419819702] [2020-07-19 23:24:34,278 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@f5ba96 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:24:34,487 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@f5ba96 issued 4 check-sat command(s) [2020-07-19 23:24:34,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:24:34,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:24:34,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:24:34,647 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:24:34,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:24:34,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-07-19 23:24:34,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79446084] [2020-07-19 23:24:34,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 23:24:34,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:24:34,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 23:24:34,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-19 23:24:34,651 INFO L87 Difference]: Start difference. First operand 1112 states and 1528 transitions. Second operand 10 states. [2020-07-19 23:24:38,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:24:38,920 INFO L93 Difference]: Finished difference Result 3532 states and 5712 transitions. [2020-07-19 23:24:38,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-07-19 23:24:38,920 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 200 [2020-07-19 23:24:38,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:24:38,940 INFO L225 Difference]: With dead ends: 3532 [2020-07-19 23:24:38,940 INFO L226 Difference]: Without dead ends: 2426 [2020-07-19 23:24:38,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=239, Invalid=951, Unknown=0, NotChecked=0, Total=1190 [2020-07-19 23:24:38,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2020-07-19 23:24:39,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 1563. [2020-07-19 23:24:39,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1563 states. [2020-07-19 23:24:39,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2099 transitions. [2020-07-19 23:24:39,046 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2099 transitions. Word has length 200 [2020-07-19 23:24:39,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:24:39,047 INFO L479 AbstractCegarLoop]: Abstraction has 1563 states and 2099 transitions. [2020-07-19 23:24:39,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 23:24:39,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2099 transitions. [2020-07-19 23:24:39,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-19 23:24:39,053 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:24:39,054 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-19 23:24:39,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:24:39,268 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:24:39,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:24:39,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1988856539, now seen corresponding path program 1 times [2020-07-19 23:24:39,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:24:39,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777710590] [2020-07-19 23:24:39,269 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@57e16f1 [2020-07-19 23:24:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:24:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:24:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:24:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:24:39,534 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-19 23:24:39,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777710590] [2020-07-19 23:24:39,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481517255] [2020-07-19 23:24:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@d635aff No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:24:39,674 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@d635aff issued 4 check-sat command(s) [2020-07-19 23:24:39,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:24:39,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:24:39,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:24:39,861 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-19 23:24:39,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:24:39,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-07-19 23:24:39,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245777856] [2020-07-19 23:24:39,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:24:39,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:24:39,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:24:39,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:24:39,866 INFO L87 Difference]: Start difference. First operand 1563 states and 2099 transitions. Second operand 3 states. [2020-07-19 23:24:40,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:24:40,562 INFO L93 Difference]: Finished difference Result 3259 states and 4337 transitions. [2020-07-19 23:24:40,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:24:40,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-07-19 23:24:40,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:24:40,571 INFO L225 Difference]: With dead ends: 3259 [2020-07-19 23:24:40,571 INFO L226 Difference]: Without dead ends: 0 [2020-07-19 23:24:40,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:24:40,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-19 23:24:40,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-19 23:24:40,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-19 23:24:40,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-19 23:24:40,588 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 204 [2020-07-19 23:24:40,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:24:40,588 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-19 23:24:40,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:24:40,588 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-19 23:24:40,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-19 23:24:40,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:24:40,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-19 23:24:41,127 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 29 [2020-07-19 23:24:41,679 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 49 [2020-07-19 23:24:41,893 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-19 23:24:41,894 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~z~0 |old(~z~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a7~0 |old(~a7~0)|) (= ~v~0 |old(~v~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~y~0 |old(~y~0)|) (= ~f~0 |old(~f~0)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~b~0 |old(~b~0)|) (= ~a20~0 |old(~a20~0)|) (= ~d~0 |old(~d~0)|)) [2020-07-19 23:24:41,894 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-19 23:24:41,894 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-19 23:24:41,894 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-19 23:24:41,894 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,894 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,895 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,895 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,895 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,895 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,895 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-19 23:24:41,895 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-19 23:24:41,895 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-19 23:24:41,895 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-19 23:24:41,896 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-19 23:24:41,896 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-19 23:24:41,896 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-19 23:24:41,896 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-19 23:24:41,896 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-19 23:24:41,896 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-19 23:24:41,896 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,897 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,897 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,897 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,897 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,897 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,897 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-19 23:24:41,897 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-19 23:24:41,898 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-19 23:24:41,898 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-19 23:24:41,898 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-19 23:24:41,898 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-19 23:24:41,898 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-19 23:24:41,898 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-19 23:24:41,898 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-19 23:24:41,899 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-19 23:24:41,899 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-19 23:24:41,899 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 509) no Hoare annotation was computed. [2020-07-19 23:24:41,899 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-19 23:24:41,899 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-19 23:24:41,899 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-19 23:24:41,900 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-19 23:24:41,900 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,900 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,900 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,900 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,900 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,900 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-19 23:24:41,900 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-19 23:24:41,901 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-19 23:24:41,901 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-19 23:24:41,901 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-19 23:24:41,901 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-19 23:24:41,901 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-19 23:24:41,901 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-19 23:24:41,901 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-19 23:24:41,902 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,902 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,902 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,902 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,902 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,902 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-19 23:24:41,902 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-19 23:24:41,902 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-19 23:24:41,903 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-19 23:24:41,903 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-19 23:24:41,903 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-19 23:24:41,903 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-19 23:24:41,903 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-19 23:24:41,903 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-19 23:24:41,903 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-19 23:24:41,903 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-19 23:24:41,904 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-19 23:24:41,904 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-19 23:24:41,904 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,904 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,904 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,904 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,904 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,904 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-19 23:24:41,905 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-19 23:24:41,905 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-19 23:24:41,905 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-19 23:24:41,905 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-19 23:24:41,905 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-19 23:24:41,905 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-19 23:24:41,905 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-19 23:24:41,906 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-19 23:24:41,906 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,906 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,906 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,906 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,906 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,906 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,907 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-19 23:24:41,907 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,907 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-19 23:24:41,907 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-19 23:24:41,907 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-19 23:24:41,907 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-19 23:24:41,907 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-19 23:24:41,908 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-19 23:24:41,908 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-19 23:24:41,908 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-19 23:24:41,908 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-19 23:24:41,908 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-19 23:24:41,908 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-19 23:24:41,908 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-19 23:24:41,908 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-19 23:24:41,908 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,908 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,908 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,909 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,909 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,909 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-19 23:24:41,909 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-19 23:24:41,909 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-19 23:24:41,909 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-19 23:24:41,909 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-19 23:24:41,909 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-19 23:24:41,910 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-19 23:24:41,910 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-19 23:24:41,910 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,910 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,910 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,910 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,910 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,911 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-19 23:24:41,911 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-19 23:24:41,911 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-19 23:24:41,911 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-19 23:24:41,911 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-19 23:24:41,911 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-19 23:24:41,911 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-19 23:24:41,912 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-19 23:24:41,912 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-19 23:24:41,912 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-19 23:24:41,912 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse6 (= ~a7~0 |old(~a7~0)|)) (.cse7 (= ~a17~0 |old(~a17~0)|)) (.cse8 (= ~a16~0 |old(~a16~0)|)) (.cse9 (= ~a8~0 |old(~a8~0)|)) (.cse10 (= ~a20~0 |old(~a20~0)|))) (let ((.cse0 (not (<= |old(~a16~0)| 5))) (.cse2 (and .cse6 .cse7 .cse8 .cse9 .cse10 (= ~a21~0 |old(~a21~0)|))) (.cse5 (not (<= |old(~a17~0)| 0))) (.cse3 (and .cse6 .cse7 .cse8 .cse9 (= 1 ~a21~0) .cse10)) (.cse1 (not (<= |old(~a8~0)| 13))) (.cse4 (not (= 1 |old(~a21~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse4 .cse5) (or (not (<= 15 |old(~a8~0)|)) .cse3 .cse4) (or .cse1 .cse2 .cse5) (or .cse3 (not (<= |old(~a16~0)| 4)) .cse4) (or .cse3 .cse1 .cse4)))) [2020-07-19 23:24:41,912 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-19 23:24:41,912 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,913 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,913 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,913 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,913 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-19 23:24:41,913 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,913 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,913 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-19 23:24:41,914 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-19 23:24:41,914 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-19 23:24:41,914 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-19 23:24:41,914 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-19 23:24:41,914 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-19 23:24:41,914 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-19 23:24:41,914 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-19 23:24:41,915 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-19 23:24:41,915 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-19 23:24:41,915 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-19 23:24:41,915 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-19 23:24:41,915 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,915 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,915 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,916 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,916 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,916 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-19 23:24:41,916 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,916 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-19 23:24:41,916 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-19 23:24:41,916 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-19 23:24:41,916 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-19 23:24:41,916 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-19 23:24:41,917 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-19 23:24:41,917 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-19 23:24:41,917 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-19 23:24:41,917 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-19 23:24:41,917 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-19 23:24:41,917 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-19 23:24:41,917 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-19 23:24:41,917 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-19 23:24:41,917 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-19 23:24:41,917 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,917 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,917 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,917 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,918 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,918 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:24:41,918 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-19 23:24:41,918 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-19 23:24:41,918 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-19 23:24:41,918 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-19 23:24:41,918 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-19 23:24:41,918 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-19 23:24:41,918 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-19 23:24:41,918 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-19 23:24:41,919 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-19 23:24:41,919 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-19 23:24:41,919 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-19 23:24:41,919 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (<= 15 ~a8~0) (= 1 ~a21~0)) [2020-07-19 23:24:41,919 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-19 23:24:41,919 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-19 23:24:41,919 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= 1 ~a21~0) (= ~a20~0 |old(~a20~0)|)) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a21~0)|))) [2020-07-19 23:24:41,920 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-19 23:24:41,920 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse2 (<= ~a17~0 0)) (.cse1 (= 1 ~a21~0)) (.cse0 (<= ~a8~0 13)) (.cse3 (<= ~a16~0 5))) (or (and .cse0 .cse1) (and .cse1 (<= ~a16~0 4)) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse1) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse2) (and .cse2 .cse3 .cse1) (and .cse0 .cse3) (not (= 1 |old(~a21~0)|)))) [2020-07-19 23:24:41,920 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-19 23:24:41,920 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-19 23:24:41,920 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (<= ~a17~0 0)) (.cse1 (= 1 ~a21~0)) (.cse0 (<= ~a8~0 13)) (.cse3 (<= ~a16~0 5))) (or (and .cse0 .cse1) (and .cse1 (<= ~a16~0 4)) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse1) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse2) (and .cse2 .cse3 .cse1) (and .cse0 .cse3) (not (= 1 |old(~a21~0)|)))) [2020-07-19 23:24:41,920 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-19 23:24:41,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 11:24:41 BoogieIcfgContainer [2020-07-19 23:24:41,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 23:24:41,940 INFO L168 Benchmark]: Toolchain (without parser) took 15813.74 ms. Allocated memory was 146.8 MB in the beginning and 425.7 MB in the end (delta: 278.9 MB). Free memory was 102.0 MB in the beginning and 297.3 MB in the end (delta: -195.3 MB). Peak memory consumption was 289.1 MB. Max. memory is 7.1 GB. [2020-07-19 23:24:41,941 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 23:24:41,942 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.42 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 101.6 MB in the beginning and 175.6 MB in the end (delta: -74.1 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2020-07-19 23:24:41,943 INFO L168 Benchmark]: Boogie Preprocessor took 97.58 ms. Allocated memory is still 207.6 MB. Free memory was 175.6 MB in the beginning and 170.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-19 23:24:41,944 INFO L168 Benchmark]: RCFGBuilder took 1203.12 ms. Allocated memory was 207.6 MB in the beginning and 237.0 MB in the end (delta: 29.4 MB). Free memory was 170.8 MB in the beginning and 178.3 MB in the end (delta: -7.5 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. [2020-07-19 23:24:41,945 INFO L168 Benchmark]: TraceAbstraction took 13818.20 ms. Allocated memory was 237.0 MB in the beginning and 425.7 MB in the end (delta: 188.7 MB). Free memory was 178.3 MB in the beginning and 297.3 MB in the end (delta: -119.0 MB). Peak memory consumption was 275.2 MB. Max. memory is 7.1 GB. [2020-07-19 23:24:41,949 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 689.42 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 101.6 MB in the beginning and 175.6 MB in the end (delta: -74.1 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.58 ms. Allocated memory is still 207.6 MB. Free memory was 175.6 MB in the beginning and 170.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1203.12 ms. Allocated memory was 207.6 MB in the beginning and 237.0 MB in the end (delta: 29.4 MB). Free memory was 170.8 MB in the beginning and 178.3 MB in the end (delta: -7.5 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13818.20 ms. Allocated memory was 237.0 MB in the beginning and 425.7 MB in the end (delta: 188.7 MB). Free memory was 178.3 MB in the beginning and 297.3 MB in the end (delta: -119.0 MB). Peak memory consumption was 275.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 509]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((a8 <= 13 && 1 == a21) || (1 == a21 && a16 <= 4)) || !(15 <= \old(a8))) || (15 <= a8 && 1 == a21)) || !(\old(a16) <= 5)) || (a8 <= 13 && a17 <= 0)) || ((a17 <= 0 && a16 <= 5) && 1 == a21)) || (a8 <= 13 && a16 <= 5)) || !(1 == \old(a21)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.6s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 525 SDtfs, 2108 SDslu, 255 SDs, 0 SdLazy, 4987 SolverSat, 1192 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 649 GetRequests, 589 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1563occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 1157 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 46 PreInvPairs, 74 NumberOfFragments, 390 HoareAnnotationTreeSize, 46 FomulaSimplifications, 28310 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1228 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1353 NumberOfCodeBlocks, 1353 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1345 ConstructedInterpolants, 0 QuantifiedInterpolants, 540335 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1414 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 444/452 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...