/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:53:23,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:53:23,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:53:23,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:53:23,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:53:23,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:53:23,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:53:23,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:53:23,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:53:23,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:53:23,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:53:23,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:53:23,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:53:23,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:53:23,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:53:23,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:53:23,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:53:23,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:53:23,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:53:23,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:53:23,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:53:23,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:53:23,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:53:23,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:53:23,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 16:53:23,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:53:23,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:53:23,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:53:23,547 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 [2020-08-22 16:53:23,582 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:53:23,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:53:23,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:53:23,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:53:23,584 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:53:23,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:53:23,584 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:53:23,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:53:23,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:53:23,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:53:23,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:53:23,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:53:23,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:53:23,586 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:53:23,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:53:23,586 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:53:23,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:53:23,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:53:23,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:53:23,587 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:53:23,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:53:23,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:53:23,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:53:23,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:53:23,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:53:23,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:53:23,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:53:23,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:53:23,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:53:23,589 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:53:23,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:53:23,882 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:53:23,885 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:53:23,888 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:53:23,888 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:53:23,889 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-08-22 16:53:23,944 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/822c0169d/3beafc253f25465c88b7d2bf81a1c2fe/FLAG3a1aad061 [2020-08-22 16:53:24,462 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:53:24,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-08-22 16:53:24,482 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/822c0169d/3beafc253f25465c88b7d2bf81a1c2fe/FLAG3a1aad061 [2020-08-22 16:53:24,811 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/822c0169d/3beafc253f25465c88b7d2bf81a1c2fe [2020-08-22 16:53:24,819 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:53:24,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:53:24,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:53:24,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:53:24,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:53:24,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:53:24" (1/1) ... [2020-08-22 16:53:24,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23b1b478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:24, skipping insertion in model container [2020-08-22 16:53:24,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:53:24" (1/1) ... [2020-08-22 16:53:24,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:53:24,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:53:25,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:53:25,348 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:53:25,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:53:25,524 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:53:25,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:25 WrapperNode [2020-08-22 16:53:25,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:53:25,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:53:25,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:53:25,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:53:25,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:25" (1/1) ... [2020-08-22 16:53:25,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:25" (1/1) ... [2020-08-22 16:53:25,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:25" (1/1) ... [2020-08-22 16:53:25,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:25" (1/1) ... [2020-08-22 16:53:25,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:25" (1/1) ... [2020-08-22 16:53:25,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:25" (1/1) ... [2020-08-22 16:53:25,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:25" (1/1) ... [2020-08-22 16:53:25,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:53:25,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:53:25,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:53:25,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:53:25,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:25" (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 [2020-08-22 16:53:25,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:53:25,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:53:25,736 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-22 16:53:25,736 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:53:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-22 16:53:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:53:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 16:53:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 16:53:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:53:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:53:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:53:26,912 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:53:26,913 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 16:53:26,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:53:26 BoogieIcfgContainer [2020-08-22 16:53:26,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:53:26,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:53:26,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:53:26,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:53:26,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:53:24" (1/3) ... [2020-08-22 16:53:26,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b83a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:53:26, skipping insertion in model container [2020-08-22 16:53:26,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:25" (2/3) ... [2020-08-22 16:53:26,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b83a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:53:26, skipping insertion in model container [2020-08-22 16:53:26,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:53:26" (3/3) ... [2020-08-22 16:53:26,941 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label40.c [2020-08-22 16:53:26,951 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:53:26,962 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:53:26,977 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:53:27,013 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:53:27,013 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:53:27,014 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:53:27,014 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:53:27,014 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:53:27,014 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:53:27,015 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:53:27,015 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:53:27,043 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-08-22 16:53:27,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-08-22 16:53:27,058 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:27,059 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] [2020-08-22 16:53:27,059 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:27,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:27,066 INFO L82 PathProgramCache]: Analyzing trace with hash -576444522, now seen corresponding path program 1 times [2020-08-22 16:53:27,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:27,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474150742] [2020-08-22 16:53:27,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:27,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:27,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:53:27,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474150742] [2020-08-22 16:53:27,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:53:27,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 16:53:27,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329399050] [2020-08-22 16:53:27,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 16:53:27,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:27,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 16:53:27,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:53:27,455 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-08-22 16:53:29,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:29,363 INFO L93 Difference]: Finished difference Result 730 states and 1301 transitions. [2020-08-22 16:53:29,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 16:53:29,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2020-08-22 16:53:29,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:29,383 INFO L225 Difference]: With dead ends: 730 [2020-08-22 16:53:29,383 INFO L226 Difference]: Without dead ends: 447 [2020-08-22 16:53:29,391 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 [2020-08-22 16:53:29,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-08-22 16:53:29,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-08-22 16:53:29,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-08-22 16:53:29,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2020-08-22 16:53:29,478 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 55 [2020-08-22 16:53:29,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:29,478 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2020-08-22 16:53:29,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 16:53:29,479 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2020-08-22 16:53:29,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-22 16:53:29,485 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:29,486 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:53:29,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:53:29,486 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:29,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:29,487 INFO L82 PathProgramCache]: Analyzing trace with hash -913027315, now seen corresponding path program 1 times [2020-08-22 16:53:29,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:29,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783081731] [2020-08-22 16:53:29,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:29,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:29,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:53:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:29,785 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:53:29,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783081731] [2020-08-22 16:53:29,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:53:29,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 16:53:29,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825811192] [2020-08-22 16:53:29,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 16:53:29,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:29,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 16:53:29,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:53:29,790 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand 8 states. [2020-08-22 16:53:31,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:31,276 INFO L93 Difference]: Finished difference Result 1041 states and 1612 transitions. [2020-08-22 16:53:31,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 16:53:31,277 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 128 [2020-08-22 16:53:31,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:31,286 INFO L225 Difference]: With dead ends: 1041 [2020-08-22 16:53:31,286 INFO L226 Difference]: Without dead ends: 606 [2020-08-22 16:53:31,288 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 [2020-08-22 16:53:31,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-08-22 16:53:31,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 592. [2020-08-22 16:53:31,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-08-22 16:53:31,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 829 transitions. [2020-08-22 16:53:31,328 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 829 transitions. Word has length 128 [2020-08-22 16:53:31,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:31,329 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 829 transitions. [2020-08-22 16:53:31,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 16:53:31,329 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 829 transitions. [2020-08-22 16:53:31,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-22 16:53:31,333 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:31,333 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:53:31,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 16:53:31,334 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:31,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:31,334 INFO L82 PathProgramCache]: Analyzing trace with hash 952189433, now seen corresponding path program 1 times [2020-08-22 16:53:31,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:31,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670333355] [2020-08-22 16:53:31,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:31,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:31,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:53:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:31,634 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 31 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:53:31,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670333355] [2020-08-22 16:53:31,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117588959] [2020-08-22 16:53:31,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -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 [2020-08-22 16:53:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:31,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:53:31,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:53:31,915 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:53:31,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:53:31,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2020-08-22 16:53:31,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36099524] [2020-08-22 16:53:31,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:53:31,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:31,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:53:31,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-22 16:53:31,929 INFO L87 Difference]: Start difference. First operand 592 states and 829 transitions. Second operand 3 states. [2020-08-22 16:53:32,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:32,564 INFO L93 Difference]: Finished difference Result 1756 states and 2510 transitions. [2020-08-22 16:53:32,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:53:32,565 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2020-08-22 16:53:32,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:32,573 INFO L225 Difference]: With dead ends: 1756 [2020-08-22 16:53:32,573 INFO L226 Difference]: Without dead ends: 1170 [2020-08-22 16:53:32,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-22 16:53:32,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2020-08-22 16:53:32,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1023. [2020-08-22 16:53:32,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2020-08-22 16:53:32,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1444 transitions. [2020-08-22 16:53:32,619 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1444 transitions. Word has length 134 [2020-08-22 16:53:32,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:32,620 INFO L479 AbstractCegarLoop]: Abstraction has 1023 states and 1444 transitions. [2020-08-22 16:53:32,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:53:32,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1444 transitions. [2020-08-22 16:53:32,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-22 16:53:32,626 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:32,626 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:53:32,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-08-22 16:53:32,841 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:32,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:32,842 INFO L82 PathProgramCache]: Analyzing trace with hash -296475546, now seen corresponding path program 1 times [2020-08-22 16:53:32,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:32,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940259000] [2020-08-22 16:53:32,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:32,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:32,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:53:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:33,131 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:53:33,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940259000] [2020-08-22 16:53:33,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:53:33,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 16:53:33,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199992954] [2020-08-22 16:53:33,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 16:53:33,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:33,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 16:53:33,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:53:33,138 INFO L87 Difference]: Start difference. First operand 1023 states and 1444 transitions. Second operand 8 states. [2020-08-22 16:53:35,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:35,148 INFO L93 Difference]: Finished difference Result 2370 states and 3400 transitions. [2020-08-22 16:53:35,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 16:53:35,151 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 167 [2020-08-22 16:53:35,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:35,162 INFO L225 Difference]: With dead ends: 2370 [2020-08-22 16:53:35,162 INFO L226 Difference]: Without dead ends: 1353 [2020-08-22 16:53:35,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-08-22 16:53:35,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2020-08-22 16:53:35,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1045. [2020-08-22 16:53:35,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2020-08-22 16:53:35,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1316 transitions. [2020-08-22 16:53:35,221 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1316 transitions. Word has length 167 [2020-08-22 16:53:35,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:35,222 INFO L479 AbstractCegarLoop]: Abstraction has 1045 states and 1316 transitions. [2020-08-22 16:53:35,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 16:53:35,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1316 transitions. [2020-08-22 16:53:35,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-22 16:53:35,226 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:35,226 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:53:35,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 16:53:35,227 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:35,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:35,227 INFO L82 PathProgramCache]: Analyzing trace with hash 528848677, now seen corresponding path program 1 times [2020-08-22 16:53:35,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:35,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310153938] [2020-08-22 16:53:35,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:35,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:35,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:53:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:35,555 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:53:35,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310153938] [2020-08-22 16:53:35,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:53:35,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 16:53:35,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33724237] [2020-08-22 16:53:35,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 16:53:35,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:35,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 16:53:35,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 16:53:35,558 INFO L87 Difference]: Start difference. First operand 1045 states and 1316 transitions. Second operand 7 states. [2020-08-22 16:53:36,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:36,774 INFO L93 Difference]: Finished difference Result 2261 states and 2836 transitions. [2020-08-22 16:53:36,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 16:53:36,776 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-08-22 16:53:36,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:36,785 INFO L225 Difference]: With dead ends: 2261 [2020-08-22 16:53:36,786 INFO L226 Difference]: Without dead ends: 1222 [2020-08-22 16:53:36,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-08-22 16:53:36,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2020-08-22 16:53:36,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1047. [2020-08-22 16:53:36,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1047 states. [2020-08-22 16:53:36,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1272 transitions. [2020-08-22 16:53:36,831 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1272 transitions. Word has length 172 [2020-08-22 16:53:36,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:36,832 INFO L479 AbstractCegarLoop]: Abstraction has 1047 states and 1272 transitions. [2020-08-22 16:53:36,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 16:53:36,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1272 transitions. [2020-08-22 16:53:36,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-08-22 16:53:36,836 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:36,837 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2020-08-22 16:53:36,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 16:53:36,838 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:36,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:36,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1123243390, now seen corresponding path program 1 times [2020-08-22 16:53:36,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:36,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897739954] [2020-08-22 16:53:36,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:36,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:36,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:53:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:36,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-22 16:53:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:37,081 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-08-22 16:53:37,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897739954] [2020-08-22 16:53:37,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659301526] [2020-08-22 16:53:37,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -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 [2020-08-22 16:53:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:37,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:53:37,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:53:37,432 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-08-22 16:53:37,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:53:37,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-08-22 16:53:37,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761940425] [2020-08-22 16:53:37,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:53:37,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:37,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:53:37,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:53:37,435 INFO L87 Difference]: Start difference. First operand 1047 states and 1272 transitions. Second operand 3 states. [2020-08-22 16:53:38,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:38,247 INFO L93 Difference]: Finished difference Result 2672 states and 3359 transitions. [2020-08-22 16:53:38,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:53:38,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2020-08-22 16:53:38,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:38,257 INFO L225 Difference]: With dead ends: 2672 [2020-08-22 16:53:38,257 INFO L226 Difference]: Without dead ends: 1774 [2020-08-22 16:53:38,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:53:38,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2020-08-22 16:53:38,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1486. [2020-08-22 16:53:38,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1486 states. [2020-08-22 16:53:38,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 1809 transitions. [2020-08-22 16:53:38,331 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 1809 transitions. Word has length 237 [2020-08-22 16:53:38,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:38,332 INFO L479 AbstractCegarLoop]: Abstraction has 1486 states and 1809 transitions. [2020-08-22 16:53:38,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:53:38,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 1809 transitions. [2020-08-22 16:53:38,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-08-22 16:53:38,336 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:38,336 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2020-08-22 16:53:38,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:53:38,550 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:38,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:38,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1661435255, now seen corresponding path program 1 times [2020-08-22 16:53:38,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:38,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198364261] [2020-08-22 16:53:38,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:38,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:38,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:53:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:38,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-22 16:53:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:39,066 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 100 proven. 65 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 16:53:39,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198364261] [2020-08-22 16:53:39,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101920654] [2020-08-22 16:53:39,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -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 [2020-08-22 16:53:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:39,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:53:39,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:53:39,204 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-08-22 16:53:39,204 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-08-22 16:53:39,330 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 164 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:53:39,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:53:39,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 14 [2020-08-22 16:53:39,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880757778] [2020-08-22 16:53:39,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 16:53:39,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:39,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 16:53:39,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-08-22 16:53:39,333 INFO L87 Difference]: Start difference. First operand 1486 states and 1809 transitions. Second operand 14 states. [2020-08-22 16:53:44,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:44,470 INFO L93 Difference]: Finished difference Result 4349 states and 5731 transitions. [2020-08-22 16:53:44,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-08-22 16:53:44,473 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 242 [2020-08-22 16:53:44,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:44,486 INFO L225 Difference]: With dead ends: 4349 [2020-08-22 16:53:44,487 INFO L226 Difference]: Without dead ends: 3012 [2020-08-22 16:53:44,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=358, Invalid=1448, Unknown=0, NotChecked=0, Total=1806 [2020-08-22 16:53:44,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2020-08-22 16:53:44,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 2831. [2020-08-22 16:53:44,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2831 states. [2020-08-22 16:53:44,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 3471 transitions. [2020-08-22 16:53:44,567 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 3471 transitions. Word has length 242 [2020-08-22 16:53:44,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:44,567 INFO L479 AbstractCegarLoop]: Abstraction has 2831 states and 3471 transitions. [2020-08-22 16:53:44,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 16:53:44,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 3471 transitions. [2020-08-22 16:53:44,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-08-22 16:53:44,573 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:44,573 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 16:53:44,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:53:44,787 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:44,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:44,788 INFO L82 PathProgramCache]: Analyzing trace with hash -14922590, now seen corresponding path program 1 times [2020-08-22 16:53:44,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:44,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332979251] [2020-08-22 16:53:44,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:44,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:44,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:53:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:44,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 16:53:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:45,136 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 100 proven. 74 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 16:53:45,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332979251] [2020-08-22 16:53:45,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996044452] [2020-08-22 16:53:45,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:53:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:45,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:53:45,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:53:45,385 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 173 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:53:45,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:53:45,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 13 [2020-08-22 16:53:45,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513392287] [2020-08-22 16:53:45,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-22 16:53:45,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:45,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-22 16:53:45,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-08-22 16:53:45,390 INFO L87 Difference]: Start difference. First operand 2831 states and 3471 transitions. Second operand 13 states. [2020-08-22 16:53:49,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:49,635 INFO L93 Difference]: Finished difference Result 7991 states and 9947 transitions. [2020-08-22 16:53:49,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-08-22 16:53:49,636 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 251 [2020-08-22 16:53:49,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:49,651 INFO L225 Difference]: With dead ends: 7991 [2020-08-22 16:53:49,651 INFO L226 Difference]: Without dead ends: 3536 [2020-08-22 16:53:49,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=309, Invalid=1097, Unknown=0, NotChecked=0, Total=1406 [2020-08-22 16:53:49,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3536 states. [2020-08-22 16:53:49,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3536 to 2813. [2020-08-22 16:53:49,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2813 states. [2020-08-22 16:53:49,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 3394 transitions. [2020-08-22 16:53:49,740 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 3394 transitions. Word has length 251 [2020-08-22 16:53:49,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:49,741 INFO L479 AbstractCegarLoop]: Abstraction has 2813 states and 3394 transitions. [2020-08-22 16:53:49,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-22 16:53:49,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 3394 transitions. [2020-08-22 16:53:49,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-08-22 16:53:49,747 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:49,747 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 16:53:49,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:53:49,963 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:49,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:49,964 INFO L82 PathProgramCache]: Analyzing trace with hash 253048858, now seen corresponding path program 1 times [2020-08-22 16:53:49,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:49,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326338292] [2020-08-22 16:53:49,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:50,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:50,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:53:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:50,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-22 16:53:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:50,674 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 177 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 16:53:50,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326338292] [2020-08-22 16:53:50,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652381764] [2020-08-22 16:53:50,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:53:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:50,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 12 conjunts are in the unsatisfiable core [2020-08-22 16:53:50,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:53:50,824 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-08-22 16:53:50,833 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-08-22 16:53:50,835 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-08-22 16:53:50,838 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-08-22 16:53:50,851 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-08-22 16:53:50,854 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-08-22 16:53:50,865 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-08-22 16:53:50,868 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-08-22 16:53:50,875 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-08-22 16:53:50,882 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-08-22 16:53:50,883 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-08-22 16:53:50,884 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-08-22 16:53:50,906 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-08-22 16:53:50,908 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Possible infinite loop detected aux_div_39 already exists [2020-08-22 16:53:50,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:53:50,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 16:53:50,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815215461] [2020-08-22 16:53:50,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 16:53:50,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:50,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 16:53:50,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-08-22 16:53:50,910 INFO L87 Difference]: Start difference. First operand 2813 states and 3394 transitions. Second operand 11 states. [2020-08-22 16:53:53,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:53,751 INFO L93 Difference]: Finished difference Result 5787 states and 7019 transitions. [2020-08-22 16:53:53,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-22 16:53:53,752 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 287 [2020-08-22 16:53:53,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:53,765 INFO L225 Difference]: With dead ends: 5787 [2020-08-22 16:53:53,766 INFO L226 Difference]: Without dead ends: 3123 [2020-08-22 16:53:53,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=186, Invalid=516, Unknown=0, NotChecked=0, Total=702 [2020-08-22 16:53:53,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3123 states. [2020-08-22 16:53:53,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3123 to 3105. [2020-08-22 16:53:53,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3105 states. [2020-08-22 16:53:53,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3105 states to 3105 states and 3711 transitions. [2020-08-22 16:53:53,860 INFO L78 Accepts]: Start accepts. Automaton has 3105 states and 3711 transitions. Word has length 287 [2020-08-22 16:53:53,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:53,860 INFO L479 AbstractCegarLoop]: Abstraction has 3105 states and 3711 transitions. [2020-08-22 16:53:53,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 16:53:53,861 INFO L276 IsEmpty]: Start isEmpty. Operand 3105 states and 3711 transitions. [2020-08-22 16:53:53,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-08-22 16:53:53,870 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:53,871 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 16:53:54,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:53:54,084 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:54,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:54,086 INFO L82 PathProgramCache]: Analyzing trace with hash 273888777, now seen corresponding path program 1 times [2020-08-22 16:53:54,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:54,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487100088] [2020-08-22 16:53:54,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:54,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:54,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:53:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:54,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 16:53:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:54,393 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-08-22 16:53:54,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487100088] [2020-08-22 16:53:54,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273112751] [2020-08-22 16:53:54,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:53:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:54,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 12 conjunts are in the unsatisfiable core [2020-08-22 16:53:54,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:53:54,634 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-08-22 16:53:54,647 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-08-22 16:53:54,650 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-08-22 16:53:54,669 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-08-22 16:53:54,676 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Possible infinite loop detected aux_div_39 already exists [2020-08-22 16:53:54,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:53:54,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-22 16:53:54,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208110178] [2020-08-22 16:53:54,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 16:53:54,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:54,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 16:53:54,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-22 16:53:54,679 INFO L87 Difference]: Start difference. First operand 3105 states and 3711 transitions. Second operand 5 states. [2020-08-22 16:53:55,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:55,724 INFO L93 Difference]: Finished difference Result 6351 states and 7613 transitions. [2020-08-22 16:53:55,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 16:53:55,725 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 306 [2020-08-22 16:53:55,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:55,726 INFO L225 Difference]: With dead ends: 6351 [2020-08-22 16:53:55,726 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 16:53:55,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-08-22 16:53:55,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 16:53:55,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 16:53:55,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 16:53:55,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 16:53:55,740 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 306 [2020-08-22 16:53:55,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:55,740 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 16:53:55,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 16:53:55,740 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 16:53:55,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 16:53:55,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:53:55,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 16:53:56,495 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 119 [2020-08-22 16:53:56,666 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 119 [2020-08-22 16:53:57,902 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 222 DAG size of output: 59 [2020-08-22 16:53:58,353 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 54 [2020-08-22 16:53:58,761 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 54 [2020-08-22 16:53:58,767 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:53:58,767 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-08-22 16:53:58,767 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:53:58,768 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-08-22 16:53:58,768 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,768 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,768 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,768 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,768 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,768 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,769 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-08-22 16:53:58,769 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-08-22 16:53:58,769 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-22 16:53:58,769 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-08-22 16:53:58,769 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-08-22 16:53:58,769 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-08-22 16:53:58,769 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-22 16:53:58,771 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-08-22 16:53:58,771 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-08-22 16:53:58,771 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-08-22 16:53:58,771 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-08-22 16:53:58,772 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,772 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,772 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,772 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,772 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,772 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-08-22 16:53:58,772 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-08-22 16:53:58,772 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-08-22 16:53:58,773 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-08-22 16:53:58,773 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-08-22 16:53:58,773 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-08-22 16:53:58,773 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-08-22 16:53:58,773 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-08-22 16:53:58,773 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-08-22 16:53:58,773 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-08-22 16:53:58,774 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-08-22 16:53:58,775 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-08-22 16:53:58,775 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-08-22 16:53:58,775 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 151) no Hoare annotation was computed. [2020-08-22 16:53:58,776 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-08-22 16:53:58,776 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,776 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,776 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,776 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,776 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,776 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-08-22 16:53:58,778 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-22 16:53:58,778 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-08-22 16:53:58,778 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-08-22 16:53:58,778 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-08-22 16:53:58,778 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-22 16:53:58,778 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-08-22 16:53:58,778 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-08-22 16:53:58,779 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-08-22 16:53:58,779 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-08-22 16:53:58,780 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,780 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,780 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,782 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,782 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,782 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-08-22 16:53:58,782 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-08-22 16:53:58,783 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-08-22 16:53:58,783 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-08-22 16:53:58,783 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-08-22 16:53:58,783 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-22 16:53:58,783 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-08-22 16:53:58,783 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-08-22 16:53:58,783 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-08-22 16:53:58,783 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-08-22 16:53:58,784 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-08-22 16:53:58,784 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-08-22 16:53:58,784 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-08-22 16:53:58,784 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,784 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,784 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,784 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,784 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,784 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-08-22 16:53:58,784 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-08-22 16:53:58,785 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-08-22 16:53:58,785 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-22 16:53:58,785 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-08-22 16:53:58,785 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-08-22 16:53:58,785 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-08-22 16:53:58,785 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-08-22 16:53:58,785 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-08-22 16:53:58,785 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,786 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,786 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,786 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,786 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,786 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,786 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,786 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-08-22 16:53:58,786 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-08-22 16:53:58,786 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-08-22 16:53:58,787 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-08-22 16:53:58,787 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-08-22 16:53:58,787 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-08-22 16:53:58,787 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-22 16:53:58,787 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-08-22 16:53:58,787 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-08-22 16:53:58,787 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-08-22 16:53:58,787 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-08-22 16:53:58,788 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-08-22 16:53:58,790 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-08-22 16:53:58,790 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,790 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,790 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,790 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,791 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-08-22 16:53:58,791 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,791 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,791 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-08-22 16:53:58,791 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-08-22 16:53:58,791 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-08-22 16:53:58,791 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-22 16:53:58,791 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-08-22 16:53:58,791 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-08-22 16:53:58,792 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-08-22 16:53:58,793 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-22 16:53:58,793 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-08-22 16:53:58,793 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-08-22 16:53:58,793 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-08-22 16:53:58,793 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-08-22 16:53:58,794 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-08-22 16:53:58,794 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,794 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,794 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,794 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,794 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,794 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,794 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-08-22 16:53:58,795 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-08-22 16:53:58,795 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-08-22 16:53:58,795 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-08-22 16:53:58,795 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-08-22 16:53:58,795 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-22 16:53:58,795 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-08-22 16:53:58,795 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-08-22 16:53:58,795 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-08-22 16:53:58,795 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-08-22 16:53:58,796 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-08-22 16:53:58,796 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse2 (not (<= |old(~a19~0)| 8))) (.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) (.cse1 (not (<= |old(~a19~0)| 9))) (.cse3 (not (= 14 ~a4~0))) (.cse4 (not (= ~a12~0 0)))) (and (or .cse0 (not (<= |old(~a1~0)| 23)) .cse1 (= 8 |old(~a19~0)|)) (or .cse0 (= 2 |old(~a10~0)|) (not (<= 1 |old(~a10~0)|))) (or (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) .cse0) (or .cse2 .cse0 .cse3 (not (<= 41 |old(~a1~0)|)) .cse4) (or .cse2 .cse0 (not (<= 2 |old(~a10~0)|))) (or .cse0 (not (<= 0 (div (+ |old(~a1~0)| (- 219)) 299890))) .cse1 .cse3 .cse4))) [2020-08-22 16:53:58,796 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-08-22 16:53:58,796 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-08-22 16:53:58,796 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-08-22 16:53:58,796 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,796 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,797 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,797 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,797 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,797 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,797 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-08-22 16:53:58,797 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-22 16:53:58,797 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-08-22 16:53:58,797 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-08-22 16:53:58,797 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-08-22 16:53:58,798 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-08-22 16:53:58,798 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-08-22 16:53:58,798 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-08-22 16:53:58,798 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-08-22 16:53:58,798 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-08-22 16:53:58,799 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-08-22 16:53:58,800 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-08-22 16:53:58,800 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-08-22 16:53:58,800 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,800 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,800 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,800 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,800 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,800 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,801 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-08-22 16:53:58,801 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-08-22 16:53:58,801 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-08-22 16:53:58,801 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-08-22 16:53:58,801 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-08-22 16:53:58,801 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-08-22 16:53:58,801 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-08-22 16:53:58,801 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-08-22 16:53:58,801 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-08-22 16:53:58,802 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-08-22 16:53:58,802 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-08-22 16:53:58,802 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-08-22 16:53:58,802 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,802 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,802 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,802 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,802 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,802 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:58,803 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-08-22 16:53:58,803 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-08-22 16:53:58,803 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-08-22 16:53:58,803 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-08-22 16:53:58,803 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-08-22 16:53:58,803 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-08-22 16:53:58,803 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-08-22 16:53:58,803 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-08-22 16:53:58,803 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-08-22 16:53:58,804 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-08-22 16:53:58,804 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-08-22 16:53:58,804 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-08-22 16:53:58,804 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:53:58,804 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= ~a4~0 14) (<= 23 ~a1~0) (<= 9 ~a19~0) (= ~a12~0 0) (<= ~a19~0 9) (<= ~a1~0 23)) [2020-08-22 16:53:58,804 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 16:53:58,804 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:53:58,805 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (not (= 14 ~a4~0)) (and (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a19~0 9) (<= ~a1~0 23) (= ~a10~0 |old(~a10~0)|)) (not (= ~a12~0 0))) [2020-08-22 16:53:58,805 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-08-22 16:53:58,805 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= 1 ~a10~0)) (.cse2 (<= ~a19~0 9)) (.cse1 (<= ~a19~0 8))) (or (and .cse0 .cse1) (and (<= ~a10~0 0) (<= 9 ~a19~0)) (and (not (= ~a19~0 8)) .cse2 (<= ~a1~0 23)) (and .cse0 (not (= ~a10~0 2))) (not (= ~a12~0 0)) (not (<= 23 |old(~a1~0)|)) (and (<= 0 (div (+ ~a1~0 (- 219)) 299890)) .cse2) (not (<= |old(~a10~0)| 0)) (and (<= 41 ~a1~0) .cse1) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)))) [2020-08-22 16:53:58,805 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-08-22 16:53:58,805 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-08-22 16:53:58,805 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= 1 ~a10~0)) (.cse2 (<= ~a19~0 9)) (.cse1 (<= ~a19~0 8))) (or (and .cse0 .cse1) (and (<= ~a10~0 0) (<= 9 ~a19~0)) (and (not (= ~a19~0 8)) .cse2 (<= ~a1~0 23)) (and .cse0 (not (= ~a10~0 2))) (not (= ~a12~0 0)) (not (<= 23 |old(~a1~0)|)) (and (<= 0 (div (+ ~a1~0 (- 219)) 299890)) .cse2) (not (<= |old(~a10~0)| 0)) (and (<= 41 ~a1~0) .cse1) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)))) [2020-08-22 16:53:58,806 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-08-22 16:53:58,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:53:58 BoogieIcfgContainer [2020-08-22 16:53:58,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:53:58,843 INFO L168 Benchmark]: Toolchain (without parser) took 34015.05 ms. Allocated memory was 141.0 MB in the beginning and 658.0 MB in the end (delta: 516.9 MB). Free memory was 103.2 MB in the beginning and 388.0 MB in the end (delta: -284.8 MB). Peak memory consumption was 491.8 MB. Max. memory is 7.1 GB. [2020-08-22 16:53:58,843 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-22 16:53:58,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.84 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 103.0 MB in the beginning and 169.0 MB in the end (delta: -66.0 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. [2020-08-22 16:53:58,845 INFO L168 Benchmark]: Boogie Preprocessor took 125.01 ms. Allocated memory is still 205.5 MB. Free memory was 169.0 MB in the beginning and 164.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-08-22 16:53:58,846 INFO L168 Benchmark]: RCFGBuilder took 1273.08 ms. Allocated memory was 205.5 MB in the beginning and 235.9 MB in the end (delta: 30.4 MB). Free memory was 164.8 MB in the beginning and 174.2 MB in the end (delta: -9.4 MB). Peak memory consumption was 77.7 MB. Max. memory is 7.1 GB. [2020-08-22 16:53:58,851 INFO L168 Benchmark]: TraceAbstraction took 31907.85 ms. Allocated memory was 235.9 MB in the beginning and 658.0 MB in the end (delta: 422.1 MB). Free memory was 174.2 MB in the beginning and 388.0 MB in the end (delta: -213.8 MB). Peak memory consumption was 468.0 MB. Max. memory is 7.1 GB. [2020-08-22 16:53:58,856 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 703.84 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 103.0 MB in the beginning and 169.0 MB in the end (delta: -66.0 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.01 ms. Allocated memory is still 205.5 MB. Free memory was 169.0 MB in the beginning and 164.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1273.08 ms. Allocated memory was 205.5 MB in the beginning and 235.9 MB in the end (delta: 30.4 MB). Free memory was 164.8 MB in the beginning and 174.2 MB in the end (delta: -9.4 MB). Peak memory consumption was 77.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31907.85 ms. Allocated memory was 235.9 MB in the beginning and 658.0 MB in the end (delta: 422.1 MB). Free memory was 174.2 MB in the beginning and 388.0 MB in the end (delta: -213.8 MB). Peak memory consumption was 468.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 151]: 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: ((((((((((((1 <= a10 && a19 <= 8) || (a10 <= 0 && 9 <= a19)) || ((!(a19 == 8) && a19 <= 9) && a1 <= 23)) || (1 <= a10 && !(a10 == 2))) || !(a12 == 0)) || !(23 <= \old(a1))) || (0 <= (a1 + -219) / 299890 && a19 <= 9)) || !(\old(a10) <= 0)) || (41 <= a1 && a19 <= 8)) || !(9 <= \old(a19))) || !(\old(a1) <= 23)) || !(14 == a4)) || !(\old(a19) <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.9s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 21.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 693 SDtfs, 5807 SDslu, 506 SDs, 0 SdLazy, 13506 SolverSat, 2524 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1441 GetRequests, 1284 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3105occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 1860 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 136 PreInvPairs, 210 NumberOfFragments, 396 HoareAnnotationTreeSize, 136 FomulaSimplifications, 47880 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6627 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 2843 NumberOfCodeBlocks, 2843 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2829 ConstructedInterpolants, 0 QuantifiedInterpolants, 2054076 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1529 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 14 InterpolantComputations, 6 PerfectInterpolantSequences, 1481/1678 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...