/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 DAGSIZE --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/Problem10_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 03:46:34,003 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 03:46:34,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 03:46:34,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 03:46:34,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 03:46:34,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 03:46:34,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 03:46:34,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 03:46:34,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 03:46:34,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 03:46:34,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 03:46:34,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 03:46:34,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 03:46:34,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 03:46:34,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 03:46:34,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 03:46:34,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 03:46:34,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 03:46:34,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 03:46:34,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 03:46:34,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 03:46:34,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 03:46:34,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 03:46:34,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 03:46:34,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 03:46:34,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 03:46:34,080 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 [2020-07-20 03:46:34,113 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 03:46:34,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 03:46:34,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 03:46:34,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 03:46:34,120 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 03:46:34,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 03:46:34,120 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 03:46:34,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 03:46:34,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 03:46:34,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 03:46:34,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 03:46:34,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 03:46:34,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 03:46:34,122 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 03:46:34,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 03:46:34,122 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 03:46:34,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 03:46:34,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 03:46:34,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 03:46:34,125 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 03:46:34,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 03:46:34,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 03:46:34,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 03:46:34,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 03:46:34,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 03:46:34,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 03:46:34,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 03:46:34,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 03:46:34,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 03:46:34,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 03:46:34,378 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 03:46:34,392 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 03:46:34,395 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 03:46:34,396 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 03:46:34,396 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 03:46:34,397 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label06.c [2020-07-20 03:46:34,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f99813fe8/7e2238494d9a418b8c4654409f7dbd85/FLAG2414bde09 [2020-07-20 03:46:35,094 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 03:46:35,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label06.c [2020-07-20 03:46:35,106 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f99813fe8/7e2238494d9a418b8c4654409f7dbd85/FLAG2414bde09 [2020-07-20 03:46:35,308 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f99813fe8/7e2238494d9a418b8c4654409f7dbd85 [2020-07-20 03:46:35,321 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 03:46:35,325 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 03:46:35,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 03:46:35,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 03:46:35,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 03:46:35,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:46:35" (1/1) ... [2020-07-20 03:46:35,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f695dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:46:35, skipping insertion in model container [2020-07-20 03:46:35,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:46:35" (1/1) ... [2020-07-20 03:46:35,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 03:46:35,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 03:46:35,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 03:46:35,793 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 03:46:36,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 03:46:36,045 INFO L208 MainTranslator]: Completed translation [2020-07-20 03:46:36,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:46:36 WrapperNode [2020-07-20 03:46:36,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 03:46:36,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 03:46:36,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 03:46:36,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 03:46:36,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:46:36" (1/1) ... [2020-07-20 03:46:36,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:46:36" (1/1) ... [2020-07-20 03:46:36,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:46:36" (1/1) ... [2020-07-20 03:46:36,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:46:36" (1/1) ... [2020-07-20 03:46:36,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:46:36" (1/1) ... [2020-07-20 03:46:36,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:46:36" (1/1) ... [2020-07-20 03:46:36,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:46:36" (1/1) ... [2020-07-20 03:46:36,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 03:46:36,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 03:46:36,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 03:46:36,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 03:46:36,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:46:36" (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 [2020-07-20 03:46:36,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 03:46:36,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 03:46:36,236 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 03:46:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 03:46:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 03:46:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 03:46:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 03:46:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 03:46:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 03:46:36,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 03:46:36,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 03:46:37,427 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 03:46:37,427 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 03:46:37,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:46:37 BoogieIcfgContainer [2020-07-20 03:46:37,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 03:46:37,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 03:46:37,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 03:46:37,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 03:46:37,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 03:46:35" (1/3) ... [2020-07-20 03:46:37,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338989b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:46:37, skipping insertion in model container [2020-07-20 03:46:37,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:46:36" (2/3) ... [2020-07-20 03:46:37,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338989b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:46:37, skipping insertion in model container [2020-07-20 03:46:37,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:46:37" (3/3) ... [2020-07-20 03:46:37,459 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label06.c [2020-07-20 03:46:37,471 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 03:46:37,485 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 03:46:37,501 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 03:46:37,538 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 03:46:37,539 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 03:46:37,539 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 03:46:37,540 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 03:46:37,540 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 03:46:37,540 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 03:46:37,541 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 03:46:37,541 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 03:46:37,572 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 03:46:37,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-20 03:46:37,584 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:46:37,585 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] [2020-07-20 03:46:37,586 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:46:37,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:46:37,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1307500665, now seen corresponding path program 1 times [2020-07-20 03:46:37,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:46:37,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672012999] [2020-07-20 03:46:37,602 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5abcf66e [2020-07-20 03:46:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:46:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:46:37,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:46:37,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672012999] [2020-07-20 03:46:37,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:46:37,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 03:46:37,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529687094] [2020-07-20 03:46:37,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 03:46:37,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:46:37,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 03:46:37,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 03:46:37,951 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-07-20 03:46:39,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:46:39,984 INFO L93 Difference]: Finished difference Result 730 states and 1300 transitions. [2020-07-20 03:46:39,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 03:46:39,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-20 03:46:39,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:46:40,020 INFO L225 Difference]: With dead ends: 730 [2020-07-20 03:46:40,020 INFO L226 Difference]: Without dead ends: 447 [2020-07-20 03:46:40,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-20 03:46:40,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-07-20 03:46:40,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 443. [2020-07-20 03:46:40,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-07-20 03:46:40,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 595 transitions. [2020-07-20 03:46:40,110 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 595 transitions. Word has length 30 [2020-07-20 03:46:40,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:46:40,112 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 595 transitions. [2020-07-20 03:46:40,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 03:46:40,113 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 595 transitions. [2020-07-20 03:46:40,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-07-20 03:46:40,117 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:46:40,118 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] [2020-07-20 03:46:40,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 03:46:40,118 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:46:40,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:46:40,119 INFO L82 PathProgramCache]: Analyzing trace with hash -2136138939, now seen corresponding path program 1 times [2020-07-20 03:46:40,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:46:40,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462091264] [2020-07-20 03:46:40,120 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5abcf66e [2020-07-20 03:46:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:46:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:46:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:46:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:46:40,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462091264] [2020-07-20 03:46:40,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577818772] [2020-07-20 03:46:40,396 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@24f46f5d No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:46:40,506 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@24f46f5d issued 4 check-sat command(s) [2020-07-20 03:46:40,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:46:40,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 03:46:40,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:46:40,581 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:46:40,581 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:46:40,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-07-20 03:46:40,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120828758] [2020-07-20 03:46:40,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 03:46:40,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:46:40,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 03:46:40,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 03:46:40,585 INFO L87 Difference]: Start difference. First operand 443 states and 595 transitions. Second operand 3 states. [2020-07-20 03:46:41,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:46:41,297 INFO L93 Difference]: Finished difference Result 880 states and 1198 transitions. [2020-07-20 03:46:41,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 03:46:41,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-07-20 03:46:41,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:46:41,311 INFO L225 Difference]: With dead ends: 880 [2020-07-20 03:46:41,311 INFO L226 Difference]: Without dead ends: 878 [2020-07-20 03:46:41,313 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 03:46:41,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-07-20 03:46:41,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 735. [2020-07-20 03:46:41,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-07-20 03:46:41,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1029 transitions. [2020-07-20 03:46:41,384 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1029 transitions. Word has length 109 [2020-07-20 03:46:41,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:46:41,385 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 1029 transitions. [2020-07-20 03:46:41,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 03:46:41,386 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1029 transitions. [2020-07-20 03:46:41,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-20 03:46:41,392 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:46:41,392 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] [2020-07-20 03:46:41,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-20 03:46:41,607 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:46:41,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:46:41,608 INFO L82 PathProgramCache]: Analyzing trace with hash -831400030, now seen corresponding path program 1 times [2020-07-20 03:46:41,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:46:41,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260675729] [2020-07-20 03:46:41,609 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5abcf66e [2020-07-20 03:46:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:46:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:46:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:46:41,869 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:46:41,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260675729] [2020-07-20 03:46:41,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:46:41,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-20 03:46:41,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568831406] [2020-07-20 03:46:41,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 03:46:41,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:46:41,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 03:46:41,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 03:46:41,872 INFO L87 Difference]: Start difference. First operand 735 states and 1029 transitions. Second operand 8 states. [2020-07-20 03:46:43,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:46:43,351 INFO L93 Difference]: Finished difference Result 1790 states and 2576 transitions. [2020-07-20 03:46:43,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 03:46:43,353 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-07-20 03:46:43,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:46:43,360 INFO L225 Difference]: With dead ends: 1790 [2020-07-20 03:46:43,360 INFO L226 Difference]: Without dead ends: 1061 [2020-07-20 03:46:43,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-07-20 03:46:43,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2020-07-20 03:46:43,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1035. [2020-07-20 03:46:43,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2020-07-20 03:46:43,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1359 transitions. [2020-07-20 03:46:43,402 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1359 transitions. Word has length 152 [2020-07-20 03:46:43,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:46:43,403 INFO L479 AbstractCegarLoop]: Abstraction has 1035 states and 1359 transitions. [2020-07-20 03:46:43,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 03:46:43,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1359 transitions. [2020-07-20 03:46:43,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-20 03:46:43,406 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:46:43,407 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] [2020-07-20 03:46:43,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 03:46:43,407 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:46:43,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:46:43,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1939539595, now seen corresponding path program 1 times [2020-07-20 03:46:43,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:46:43,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692109696] [2020-07-20 03:46:43,409 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5abcf66e [2020-07-20 03:46:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:46:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:46:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:46:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:46:43,707 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 03:46:43,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692109696] [2020-07-20 03:46:43,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349958539] [2020-07-20 03:46:43,709 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@825a755 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:46:43,915 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@825a755 issued 4 check-sat command(s) [2020-07-20 03:46:43,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:46:43,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 03:46:43,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:46:44,021 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 114 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:46:44,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 03:46:44,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2020-07-20 03:46:44,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066221436] [2020-07-20 03:46:44,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 03:46:44,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:46:44,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 03:46:44,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-20 03:46:44,026 INFO L87 Difference]: Start difference. First operand 1035 states and 1359 transitions. Second operand 10 states. [2020-07-20 03:46:45,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:46:45,971 INFO L93 Difference]: Finished difference Result 2692 states and 3624 transitions. [2020-07-20 03:46:45,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-20 03:46:45,972 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 182 [2020-07-20 03:46:45,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:46:45,985 INFO L225 Difference]: With dead ends: 2692 [2020-07-20 03:46:45,985 INFO L226 Difference]: Without dead ends: 1663 [2020-07-20 03:46:45,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 188 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2020-07-20 03:46:45,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2020-07-20 03:46:46,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1204. [2020-07-20 03:46:46,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1204 states. [2020-07-20 03:46:46,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1496 transitions. [2020-07-20 03:46:46,045 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1496 transitions. Word has length 182 [2020-07-20 03:46:46,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:46:46,047 INFO L479 AbstractCegarLoop]: Abstraction has 1204 states and 1496 transitions. [2020-07-20 03:46:46,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 03:46:46,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1496 transitions. [2020-07-20 03:46:46,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-20 03:46:46,054 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:46:46,055 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] [2020-07-20 03:46:46,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:46:46,264 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:46:46,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:46:46,264 INFO L82 PathProgramCache]: Analyzing trace with hash 191252768, now seen corresponding path program 1 times [2020-07-20 03:46:46,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:46:46,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746018462] [2020-07-20 03:46:46,266 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5abcf66e [2020-07-20 03:46:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:46:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:46:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:46:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:46:46,495 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 46 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 03:46:46,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746018462] [2020-07-20 03:46:46,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169031026] [2020-07-20 03:46:46,496 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@477ea92f 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 [2020-07-20 03:46:46,632 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@477ea92f issued 4 check-sat command(s) [2020-07-20 03:46:46,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 03:46:46,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 03:46:46,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 03:46:46,715 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-07-20 03:46:46,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 03:46:46,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-07-20 03:46:46,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357222675] [2020-07-20 03:46:46,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 03:46:46,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:46:46,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 03:46:46,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-20 03:46:46,718 INFO L87 Difference]: Start difference. First operand 1204 states and 1496 transitions. Second operand 3 states. [2020-07-20 03:46:47,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:46:47,347 INFO L93 Difference]: Finished difference Result 1635 states and 2037 transitions. [2020-07-20 03:46:47,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 03:46:47,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2020-07-20 03:46:47,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:46:47,349 INFO L225 Difference]: With dead ends: 1635 [2020-07-20 03:46:47,349 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 03:46:47,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-20 03:46:47,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 03:46:47,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 03:46:47,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 03:46:47,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 03:46:47,356 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 199 [2020-07-20 03:46:47,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:46:47,358 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 03:46:47,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 03:46:47,358 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 03:46:47,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 03:46:47,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 03:46:47,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 03:46:47,877 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 26 [2020-07-20 03:46:48,007 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 03:46:48,007 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a10~0 |old(~a10~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a19~0 |old(~a19~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-20 03:46:48,007 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 03:46:48,008 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 03:46:48,008 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,008 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,008 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,008 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,009 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,009 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,009 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 03:46:48,009 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 03:46:48,009 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 03:46:48,009 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 03:46:48,009 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 03:46:48,010 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 03:46:48,010 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 03:46:48,010 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 03:46:48,010 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 03:46:48,010 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 03:46:48,010 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 03:46:48,011 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,011 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,011 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,011 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,011 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,011 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 03:46:48,011 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 03:46:48,011 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 03:46:48,012 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 03:46:48,012 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 03:46:48,012 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 03:46:48,012 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 03:46:48,012 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 03:46:48,012 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 03:46:48,012 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 03:46:48,013 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 03:46:48,013 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 03:46:48,013 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 03:46:48,013 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2020-07-20 03:46:48,013 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 03:46:48,013 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,013 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,014 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,014 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,014 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,014 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 03:46:48,014 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 03:46:48,014 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 03:46:48,014 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 03:46:48,015 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 03:46:48,015 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 03:46:48,015 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 03:46:48,015 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 03:46:48,015 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 03:46:48,015 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 03:46:48,015 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,016 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,016 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,016 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,016 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,016 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 03:46:48,016 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 03:46:48,017 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 03:46:48,017 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 03:46:48,017 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 03:46:48,017 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 03:46:48,017 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 03:46:48,017 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 03:46:48,017 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 03:46:48,018 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 03:46:48,018 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 03:46:48,018 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 03:46:48,018 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 03:46:48,018 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,018 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,018 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,019 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,019 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,019 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 03:46:48,019 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 03:46:48,019 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 03:46:48,019 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 03:46:48,019 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 03:46:48,020 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 03:46:48,020 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 03:46:48,020 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 03:46:48,020 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 03:46:48,020 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,020 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,020 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,021 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,021 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,021 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,021 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,021 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 03:46:48,021 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 03:46:48,021 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 03:46:48,022 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 03:46:48,022 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 03:46:48,022 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 03:46:48,022 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 03:46:48,022 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 03:46:48,022 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 03:46:48,022 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 03:46:48,022 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 03:46:48,023 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 03:46:48,023 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 03:46:48,023 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,023 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,023 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,023 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,023 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 03:46:48,024 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,024 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,024 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 03:46:48,024 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 03:46:48,024 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 03:46:48,024 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 03:46:48,025 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 03:46:48,025 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 03:46:48,025 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 03:46:48,025 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 03:46:48,025 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 03:46:48,025 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 03:46:48,025 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 03:46:48,026 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 03:46:48,026 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 03:46:48,026 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,026 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,026 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,026 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,026 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,027 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,027 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 03:46:48,027 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 03:46:48,027 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 03:46:48,027 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 03:46:48,027 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 03:46:48,027 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 03:46:48,027 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 03:46:48,028 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 03:46:48,028 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 03:46:48,028 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 03:46:48,028 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 03:46:48,028 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)))) (and (or (not (<= 7 |old(~a19~0)|)) .cse0 (not (<= |old(~a10~0)| 2))) (or (not (<= |old(~a19~0)| 9)) .cse0 (= 1 |old(~a10~0)|)))) [2020-07-20 03:46:48,028 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 03:46:48,029 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 03:46:48,029 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 03:46:48,029 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,029 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,029 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,029 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,029 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,030 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,030 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 03:46:48,030 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 03:46:48,030 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 03:46:48,030 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 03:46:48,030 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 03:46:48,030 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 03:46:48,030 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 03:46:48,031 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 03:46:48,031 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 03:46:48,031 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 03:46:48,031 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 03:46:48,031 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 03:46:48,031 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 03:46:48,031 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,032 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,032 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,032 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,032 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,032 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,032 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 03:46:48,032 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 03:46:48,032 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 03:46:48,032 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 03:46:48,033 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 03:46:48,033 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 03:46:48,033 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 03:46:48,033 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 03:46:48,033 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 03:46:48,033 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 03:46:48,033 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 03:46:48,033 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 03:46:48,034 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,034 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,034 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,034 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,034 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,034 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 03:46:48,034 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 03:46:48,035 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 03:46:48,035 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 03:46:48,035 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 03:46:48,035 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 03:46:48,035 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 03:46:48,035 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 03:46:48,035 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 03:46:48,035 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 03:46:48,036 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 03:46:48,036 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 03:46:48,036 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 03:46:48,036 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 03:46:48,036 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 8 ~a19~0)) [2020-07-20 03:46:48,036 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 03:46:48,036 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 03:46:48,037 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= |old(~a10~0)| 0)) (not (<= 8 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-20 03:46:48,037 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 03:46:48,037 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (and (<= ~a19~0 9) (not (= 1 ~a10~0))) (not (<= |old(~a10~0)| 0)) (not (<= 8 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and (<= 7 ~a19~0) (<= ~a10~0 2))) [2020-07-20 03:46:48,037 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 03:46:48,037 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 03:46:48,037 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (and (<= ~a19~0 9) (not (= 1 ~a10~0))) (not (<= |old(~a10~0)| 0)) (not (<= 8 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9)) (and (<= 7 ~a19~0) (<= ~a10~0 2))) [2020-07-20 03:46:48,037 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 03:46:48,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 03:46:48 BoogieIcfgContainer [2020-07-20 03:46:48,056 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 03:46:48,058 INFO L168 Benchmark]: Toolchain (without parser) took 12735.24 ms. Allocated memory was 140.0 MB in the beginning and 389.5 MB in the end (delta: 249.6 MB). Free memory was 103.3 MB in the beginning and 149.2 MB in the end (delta: -45.9 MB). Peak memory consumption was 203.7 MB. Max. memory is 7.1 GB. [2020-07-20 03:46:48,059 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 123.1 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-20 03:46:48,060 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.43 ms. Allocated memory was 140.0 MB in the beginning and 206.6 MB in the end (delta: 66.6 MB). Free memory was 102.8 MB in the beginning and 172.9 MB in the end (delta: -70.1 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. [2020-07-20 03:46:48,061 INFO L168 Benchmark]: Boogie Preprocessor took 106.28 ms. Allocated memory is still 206.6 MB. Free memory was 172.9 MB in the beginning and 168.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-20 03:46:48,062 INFO L168 Benchmark]: RCFGBuilder took 1286.22 ms. Allocated memory was 206.6 MB in the beginning and 237.0 MB in the end (delta: 30.4 MB). Free memory was 168.1 MB in the beginning and 179.2 MB in the end (delta: -11.1 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. [2020-07-20 03:46:48,064 INFO L168 Benchmark]: TraceAbstraction took 10615.08 ms. Allocated memory was 237.0 MB in the beginning and 389.5 MB in the end (delta: 152.6 MB). Free memory was 179.2 MB in the beginning and 149.2 MB in the end (delta: 30.0 MB). Peak memory consumption was 182.6 MB. Max. memory is 7.1 GB. [2020-07-20 03:46:48,068 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 123.1 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 716.43 ms. Allocated memory was 140.0 MB in the beginning and 206.6 MB in the end (delta: 66.6 MB). Free memory was 102.8 MB in the beginning and 172.9 MB in the end (delta: -70.1 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.28 ms. Allocated memory is still 206.6 MB. Free memory was 172.9 MB in the beginning and 168.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1286.22 ms. Allocated memory was 206.6 MB in the beginning and 237.0 MB in the end (delta: 30.4 MB). Free memory was 168.1 MB in the beginning and 179.2 MB in the end (delta: -11.1 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10615.08 ms. Allocated memory was 237.0 MB in the beginning and 389.5 MB in the end (delta: 152.6 MB). Free memory was 179.2 MB in the beginning and 149.2 MB in the end (delta: 30.0 MB). Peak memory consumption was 182.6 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: ((((a19 <= 9 && !(1 == a10)) || !(\old(a10) <= 0)) || !(8 <= \old(a19))) || !(\old(a19) <= 9)) || (7 <= a19 && a10 <= 2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.0s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 115 SDtfs, 2735 SDslu, 152 SDs, 0 SdLazy, 3610 SolverSat, 1059 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 553 GetRequests, 508 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1204occurred 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: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 632 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 30 PreInvPairs, 52 NumberOfFragments, 159 HoareAnnotationTreeSize, 30 FomulaSimplifications, 5653 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 965 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1162 NumberOfCodeBlocks, 1162 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1154 ConstructedInterpolants, 0 QuantifiedInterpolants, 386427 SizeOfPredicates, 4 NumberOfNonLiveVariables, 976 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 475/557 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...