/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/Problem02_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 13:36:45,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:36:45,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:36:45,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:36:45,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:36:45,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:36:45,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:36:45,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:36:45,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:36:45,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:36:45,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:36:45,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:36:45,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:36:45,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:36:45,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:36:45,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:36:45,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:36:45,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:36:45,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:36:45,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:36:45,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:36:45,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:36:45,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:36:45,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:36:45,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 13:36:45,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 13:36:45,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 13:36:45,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 13:36:45,320 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-04 13:36:45,348 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:36:45,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:36:45,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:36:45,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:36:45,350 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:36:45,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:36:45,350 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:36:45,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:36:45,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:36:45,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:36:45,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:36:45,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:36:45,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:36:45,352 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:36:45,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:36:45,352 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:36:45,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:36:45,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:36:45,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:36:45,353 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:36:45,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:36:45,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:36:45,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:36:45,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:36:45,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:36:45,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:36:45,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:36:45,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:36:45,355 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:36:45,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:36:45,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:36:45,819 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:36:45,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:36:45,828 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:36:45,828 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:36:45,829 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label40.c [2020-09-04 13:36:45,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/208571ff4/c6ef39f866644d2eb2de52f4b9d1cb97/FLAG55c78c925 [2020-09-04 13:36:46,557 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:36:46,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label40.c [2020-09-04 13:36:46,571 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/208571ff4/c6ef39f866644d2eb2de52f4b9d1cb97/FLAG55c78c925 [2020-09-04 13:36:46,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/208571ff4/c6ef39f866644d2eb2de52f4b9d1cb97 [2020-09-04 13:36:46,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:36:46,793 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:36:46,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:36:46,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:36:46,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:36:46,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:36:46" (1/1) ... [2020-09-04 13:36:46,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d084142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:46, skipping insertion in model container [2020-09-04 13:36:46,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:36:46" (1/1) ... [2020-09-04 13:36:46,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:36:46,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:36:47,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:36:47,311 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:36:47,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:36:47,654 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:36:47,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:47 WrapperNode [2020-09-04 13:36:47,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:36:47,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:36:47,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:36:47,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:36:47,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:47" (1/1) ... [2020-09-04 13:36:47,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:47" (1/1) ... [2020-09-04 13:36:47,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:47" (1/1) ... [2020-09-04 13:36:47,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:47" (1/1) ... [2020-09-04 13:36:47,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:47" (1/1) ... [2020-09-04 13:36:47,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:47" (1/1) ... [2020-09-04 13:36:47,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:47" (1/1) ... [2020-09-04 13:36:47,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:36:47,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:36:47,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:36:47,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:36:47,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:36:47,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:36:47,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:36:47,968 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-04 13:36:47,968 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:36:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-04 13:36:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:36:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 13:36:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 13:36:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:36:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:36:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:36:49,245 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:36:49,245 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 13:36:49,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:36:49 BoogieIcfgContainer [2020-09-04 13:36:49,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:36:49,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:36:49,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:36:49,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:36:49,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:36:46" (1/3) ... [2020-09-04 13:36:49,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5510976b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:36:49, skipping insertion in model container [2020-09-04 13:36:49,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:47" (2/3) ... [2020-09-04 13:36:49,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5510976b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:36:49, skipping insertion in model container [2020-09-04 13:36:49,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:36:49" (3/3) ... [2020-09-04 13:36:49,262 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label40.c [2020-09-04 13:36:49,274 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:36:49,284 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:36:49,306 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:36:49,339 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:36:49,339 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:36:49,339 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:36:49,339 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:36:49,339 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:36:49,340 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:36:49,340 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:36:49,340 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:36:49,366 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-09-04 13:36:49,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-09-04 13:36:49,378 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:36:49,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:36:49,379 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:36:49,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:36:49,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1033095319, now seen corresponding path program 1 times [2020-09-04 13:36:49,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:36:49,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176901761] [2020-09-04 13:36:49,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:36:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:49,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:36:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:49,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:36:49,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176901761] [2020-09-04 13:36:49,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:36:49,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 13:36:49,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333394062] [2020-09-04 13:36:49,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 13:36:49,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:36:50,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 13:36:50,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 13:36:50,006 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 4 states. [2020-09-04 13:36:51,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:36:51,604 INFO L93 Difference]: Finished difference Result 644 states and 1094 transitions. [2020-09-04 13:36:51,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 13:36:51,606 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 95 [2020-09-04 13:36:51,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:36:51,626 INFO L225 Difference]: With dead ends: 644 [2020-09-04 13:36:51,626 INFO L226 Difference]: Without dead ends: 334 [2020-09-04 13:36:51,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:36:51,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-09-04 13:36:51,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 327. [2020-09-04 13:36:51,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2020-09-04 13:36:51,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 478 transitions. [2020-09-04 13:36:51,742 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 478 transitions. Word has length 95 [2020-09-04 13:36:51,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:36:51,743 INFO L479 AbstractCegarLoop]: Abstraction has 327 states and 478 transitions. [2020-09-04 13:36:51,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 13:36:51,743 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 478 transitions. [2020-09-04 13:36:51,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-04 13:36:51,749 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:36:51,750 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:36:51,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:36:51,751 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:36:51,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:36:51,751 INFO L82 PathProgramCache]: Analyzing trace with hash -377311506, now seen corresponding path program 1 times [2020-09-04 13:36:51,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:36:51,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739994287] [2020-09-04 13:36:51,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:36:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:51,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:36:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:51,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:36:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:51,971 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:36:51,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739994287] [2020-09-04 13:36:51,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603999923] [2020-09-04 13:36:51,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:36:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:52,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:36:52,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:36:52,190 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:36:52,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:36:52,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-09-04 13:36:52,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083963957] [2020-09-04 13:36:52,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:36:52,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:36:52,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:36:52,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:36:52,194 INFO L87 Difference]: Start difference. First operand 327 states and 478 transitions. Second operand 3 states. [2020-09-04 13:36:52,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:36:52,878 INFO L93 Difference]: Finished difference Result 943 states and 1397 transitions. [2020-09-04 13:36:52,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:36:52,883 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-09-04 13:36:52,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:36:52,893 INFO L225 Difference]: With dead ends: 943 [2020-09-04 13:36:52,893 INFO L226 Difference]: Without dead ends: 622 [2020-09-04 13:36:52,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:36:52,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2020-09-04 13:36:52,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 621. [2020-09-04 13:36:52,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-09-04 13:36:52,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 878 transitions. [2020-09-04 13:36:52,936 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 878 transitions. Word has length 103 [2020-09-04 13:36:52,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:36:52,936 INFO L479 AbstractCegarLoop]: Abstraction has 621 states and 878 transitions. [2020-09-04 13:36:52,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:36:52,937 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 878 transitions. [2020-09-04 13:36:52,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-09-04 13:36:52,944 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:36:52,944 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:36:53,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-09-04 13:36:53,158 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:36:53,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:36:53,159 INFO L82 PathProgramCache]: Analyzing trace with hash 549151607, now seen corresponding path program 1 times [2020-09-04 13:36:53,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:36:53,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040928598] [2020-09-04 13:36:53,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:36:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:53,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:36:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:53,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:36:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:53,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-04 13:36:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:53,419 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-04 13:36:53,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040928598] [2020-09-04 13:36:53,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770716661] [2020-09-04 13:36:53,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:36:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:53,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:36:53,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:36:53,572 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:36:53,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:36:53,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-09-04 13:36:53,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078042912] [2020-09-04 13:36:53,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 13:36:53,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:36:53,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 13:36:53,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-04 13:36:53,575 INFO L87 Difference]: Start difference. First operand 621 states and 878 transitions. Second operand 11 states. [2020-09-04 13:36:55,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:36:55,299 INFO L93 Difference]: Finished difference Result 1690 states and 2493 transitions. [2020-09-04 13:36:55,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 13:36:55,299 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 113 [2020-09-04 13:36:55,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:36:55,307 INFO L225 Difference]: With dead ends: 1690 [2020-09-04 13:36:55,307 INFO L226 Difference]: Without dead ends: 1075 [2020-09-04 13:36:55,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2020-09-04 13:36:55,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2020-09-04 13:36:55,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 902. [2020-09-04 13:36:55,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 902 states. [2020-09-04 13:36:55,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1243 transitions. [2020-09-04 13:36:55,364 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1243 transitions. Word has length 113 [2020-09-04 13:36:55,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:36:55,364 INFO L479 AbstractCegarLoop]: Abstraction has 902 states and 1243 transitions. [2020-09-04 13:36:55,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 13:36:55,365 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1243 transitions. [2020-09-04 13:36:55,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-09-04 13:36:55,372 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:36:55,372 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:36:55,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:36:55,587 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:36:55,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:36:55,588 INFO L82 PathProgramCache]: Analyzing trace with hash -587723324, now seen corresponding path program 1 times [2020-09-04 13:36:55,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:36:55,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117825647] [2020-09-04 13:36:55,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:36:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:55,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:36:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:55,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:36:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:55,808 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:36:55,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117825647] [2020-09-04 13:36:55,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:36:55,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 13:36:55,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665338305] [2020-09-04 13:36:55,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:36:55,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:36:55,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:36:55,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:36:55,812 INFO L87 Difference]: Start difference. First operand 902 states and 1243 transitions. Second operand 8 states. [2020-09-04 13:36:57,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:36:57,967 INFO L93 Difference]: Finished difference Result 2567 states and 3685 transitions. [2020-09-04 13:36:57,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 13:36:57,968 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 115 [2020-09-04 13:36:57,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:36:57,977 INFO L225 Difference]: With dead ends: 2567 [2020-09-04 13:36:57,978 INFO L226 Difference]: Without dead ends: 1671 [2020-09-04 13:36:57,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-09-04 13:36:57,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2020-09-04 13:36:58,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1358. [2020-09-04 13:36:58,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1358 states. [2020-09-04 13:36:58,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1769 transitions. [2020-09-04 13:36:58,033 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1769 transitions. Word has length 115 [2020-09-04 13:36:58,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:36:58,033 INFO L479 AbstractCegarLoop]: Abstraction has 1358 states and 1769 transitions. [2020-09-04 13:36:58,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:36:58,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1769 transitions. [2020-09-04 13:36:58,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-04 13:36:58,038 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:36:58,038 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:36:58,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 13:36:58,039 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:36:58,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:36:58,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1133854759, now seen corresponding path program 1 times [2020-09-04 13:36:58,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:36:58,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841070895] [2020-09-04 13:36:58,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:36:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:58,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:36:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:58,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:36:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:58,364 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:36:58,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841070895] [2020-09-04 13:36:58,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829426069] [2020-09-04 13:36:58,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:36:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:58,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:36:58,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:36:58,543 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:36:58,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:36:58,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-09-04 13:36:58,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905518854] [2020-09-04 13:36:58,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:36:58,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:36:58,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:36:58,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:36:58,546 INFO L87 Difference]: Start difference. First operand 1358 states and 1769 transitions. Second operand 3 states. [2020-09-04 13:36:59,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:36:59,178 INFO L93 Difference]: Finished difference Result 3144 states and 4111 transitions. [2020-09-04 13:36:59,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:36:59,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-09-04 13:36:59,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:36:59,189 INFO L225 Difference]: With dead ends: 3144 [2020-09-04 13:36:59,189 INFO L226 Difference]: Without dead ends: 1204 [2020-09-04 13:36:59,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:36:59,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2020-09-04 13:36:59,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1204. [2020-09-04 13:36:59,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1204 states. [2020-09-04 13:36:59,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1506 transitions. [2020-09-04 13:36:59,230 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1506 transitions. Word has length 121 [2020-09-04 13:36:59,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:36:59,230 INFO L479 AbstractCegarLoop]: Abstraction has 1204 states and 1506 transitions. [2020-09-04 13:36:59,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:36:59,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1506 transitions. [2020-09-04 13:36:59,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-09-04 13:36:59,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:36:59,234 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:36:59,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:36:59,450 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:36:59,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:36:59,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1603396301, now seen corresponding path program 1 times [2020-09-04 13:36:59,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:36:59,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970982450] [2020-09-04 13:36:59,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:36:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:59,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:36:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:59,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:36:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:59,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-04 13:36:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:59,616 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:36:59,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970982450] [2020-09-04 13:36:59,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948966734] [2020-09-04 13:36:59,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:36:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:59,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-04 13:36:59,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:36:59,785 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-04 13:36:59,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:36:59,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2020-09-04 13:36:59,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263907605] [2020-09-04 13:36:59,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:36:59,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:36:59,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:36:59,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:36:59,787 INFO L87 Difference]: Start difference. First operand 1204 states and 1506 transitions. Second operand 5 states. [2020-09-04 13:37:00,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:37:00,562 INFO L93 Difference]: Finished difference Result 3492 states and 4559 transitions. [2020-09-04 13:37:00,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 13:37:00,563 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-09-04 13:37:00,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:37:00,576 INFO L225 Difference]: With dead ends: 3492 [2020-09-04 13:37:00,576 INFO L226 Difference]: Without dead ends: 2294 [2020-09-04 13:37:00,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-09-04 13:37:00,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2020-09-04 13:37:00,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 2261. [2020-09-04 13:37:00,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2261 states. [2020-09-04 13:37:00,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 2865 transitions. [2020-09-04 13:37:00,656 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 2865 transitions. Word has length 124 [2020-09-04 13:37:00,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:37:00,657 INFO L479 AbstractCegarLoop]: Abstraction has 2261 states and 2865 transitions. [2020-09-04 13:37:00,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:37:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 2865 transitions. [2020-09-04 13:37:00,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-04 13:37:00,664 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:37:00,665 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:37:00,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:37:00,880 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:37:00,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:37:00,881 INFO L82 PathProgramCache]: Analyzing trace with hash -5916666, now seen corresponding path program 1 times [2020-09-04 13:37:00,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:37:00,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849285600] [2020-09-04 13:37:00,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:37:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:01,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:37:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:01,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:37:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:01,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-04 13:37:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:01,100 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:37:01,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849285600] [2020-09-04 13:37:01,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172543223] [2020-09-04 13:37:01,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:37:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:01,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:37:01,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:37:01,294 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-04 13:37:01,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:37:01,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-09-04 13:37:01,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242388335] [2020-09-04 13:37:01,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:37:01,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:37:01,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:37:01,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:37:01,297 INFO L87 Difference]: Start difference. First operand 2261 states and 2865 transitions. Second operand 3 states. [2020-09-04 13:37:02,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:37:02,049 INFO L93 Difference]: Finished difference Result 4518 states and 5734 transitions. [2020-09-04 13:37:02,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:37:02,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2020-09-04 13:37:02,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:37:02,066 INFO L225 Difference]: With dead ends: 4518 [2020-09-04 13:37:02,066 INFO L226 Difference]: Without dead ends: 2263 [2020-09-04 13:37:02,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:37:02,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2020-09-04 13:37:02,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 2261. [2020-09-04 13:37:02,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2261 states. [2020-09-04 13:37:02,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 2835 transitions. [2020-09-04 13:37:02,170 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 2835 transitions. Word has length 146 [2020-09-04 13:37:02,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:37:02,171 INFO L479 AbstractCegarLoop]: Abstraction has 2261 states and 2835 transitions. [2020-09-04 13:37:02,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:37:02,172 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 2835 transitions. [2020-09-04 13:37:02,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-04 13:37:02,183 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:37:02,183 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:37:02,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-09-04 13:37:02,397 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:37:02,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:37:02,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1143201553, now seen corresponding path program 1 times [2020-09-04 13:37:02,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:37:02,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664632454] [2020-09-04 13:37:02,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:37:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:02,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:37:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:02,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:37:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:02,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-04 13:37:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:02,670 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:37:02,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664632454] [2020-09-04 13:37:02,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893891722] [2020-09-04 13:37:02,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:37:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:02,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 7 conjunts are in the unsatisfiable core [2020-09-04 13:37:02,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:37:02,815 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:37:02,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:37:02,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 7 [2020-09-04 13:37:02,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624691973] [2020-09-04 13:37:02,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 13:37:02,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:37:02,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 13:37:02,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:37:02,818 INFO L87 Difference]: Start difference. First operand 2261 states and 2835 transitions. Second operand 7 states. [2020-09-04 13:37:04,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:37:04,058 INFO L93 Difference]: Finished difference Result 5873 states and 7654 transitions. [2020-09-04 13:37:04,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 13:37:04,060 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 162 [2020-09-04 13:37:04,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:37:04,080 INFO L225 Difference]: With dead ends: 5873 [2020-09-04 13:37:04,081 INFO L226 Difference]: Without dead ends: 3618 [2020-09-04 13:37:04,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-04 13:37:04,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3618 states. [2020-09-04 13:37:04,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3618 to 3290. [2020-09-04 13:37:04,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3290 states. [2020-09-04 13:37:04,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 3973 transitions. [2020-09-04 13:37:04,189 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 3973 transitions. Word has length 162 [2020-09-04 13:37:04,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:37:04,189 INFO L479 AbstractCegarLoop]: Abstraction has 3290 states and 3973 transitions. [2020-09-04 13:37:04,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 13:37:04,190 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 3973 transitions. [2020-09-04 13:37:04,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-04 13:37:04,198 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:37:04,198 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:37:04,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:37:04,413 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:37:04,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:37:04,414 INFO L82 PathProgramCache]: Analyzing trace with hash -955310860, now seen corresponding path program 1 times [2020-09-04 13:37:04,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:37:04,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463026271] [2020-09-04 13:37:04,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:37:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:04,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:37:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:04,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:37:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:04,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-04 13:37:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:04,682 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:37:04,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463026271] [2020-09-04 13:37:04,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536415374] [2020-09-04 13:37:04,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:37:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:04,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:37:04,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:37:04,907 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:37:04,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:37:04,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2020-09-04 13:37:04,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683053109] [2020-09-04 13:37:04,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 13:37:04,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:37:04,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 13:37:04,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:37:04,911 INFO L87 Difference]: Start difference. First operand 3290 states and 3973 transitions. Second operand 10 states. [2020-09-04 13:37:07,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:37:07,201 INFO L93 Difference]: Finished difference Result 6315 states and 7683 transitions. [2020-09-04 13:37:07,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-04 13:37:07,202 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 181 [2020-09-04 13:37:07,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:37:07,214 INFO L225 Difference]: With dead ends: 6315 [2020-09-04 13:37:07,214 INFO L226 Difference]: Without dead ends: 3175 [2020-09-04 13:37:07,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-09-04 13:37:07,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3175 states. [2020-09-04 13:37:07,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3175 to 2860. [2020-09-04 13:37:07,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2860 states. [2020-09-04 13:37:07,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 3276 transitions. [2020-09-04 13:37:07,298 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 3276 transitions. Word has length 181 [2020-09-04 13:37:07,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:37:07,298 INFO L479 AbstractCegarLoop]: Abstraction has 2860 states and 3276 transitions. [2020-09-04 13:37:07,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 13:37:07,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 3276 transitions. [2020-09-04 13:37:07,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-09-04 13:37:07,306 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:37:07,307 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:37:07,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:37:07,520 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:37:07,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:37:07,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1874149379, now seen corresponding path program 1 times [2020-09-04 13:37:07,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:37:07,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672583453] [2020-09-04 13:37:07,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:37:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:07,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:37:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:07,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:37:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:07,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-04 13:37:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:07,799 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:37:07,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672583453] [2020-09-04 13:37:07,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745033379] [2020-09-04 13:37:07,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:37:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:07,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 10 conjunts are in the unsatisfiable core [2020-09-04 13:37:07,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:37:07,986 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-04 13:37:07,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:37:07,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2020-09-04 13:37:07,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391178984] [2020-09-04 13:37:07,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 13:37:07,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:37:07,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 13:37:07,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-04 13:37:07,989 INFO L87 Difference]: Start difference. First operand 2860 states and 3276 transitions. Second operand 9 states. [2020-09-04 13:37:11,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:37:11,584 INFO L93 Difference]: Finished difference Result 8728 states and 9922 transitions. [2020-09-04 13:37:11,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-04 13:37:11,588 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 206 [2020-09-04 13:37:11,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:37:11,608 INFO L225 Difference]: With dead ends: 8728 [2020-09-04 13:37:11,608 INFO L226 Difference]: Without dead ends: 5559 [2020-09-04 13:37:11,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=581, Unknown=0, NotChecked=0, Total=756 [2020-09-04 13:37:11,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5559 states. [2020-09-04 13:37:11,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5559 to 5543. [2020-09-04 13:37:11,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5543 states. [2020-09-04 13:37:11,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5543 states to 5543 states and 6084 transitions. [2020-09-04 13:37:11,766 INFO L78 Accepts]: Start accepts. Automaton has 5543 states and 6084 transitions. Word has length 206 [2020-09-04 13:37:11,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:37:11,766 INFO L479 AbstractCegarLoop]: Abstraction has 5543 states and 6084 transitions. [2020-09-04 13:37:11,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 13:37:11,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5543 states and 6084 transitions. [2020-09-04 13:37:11,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-09-04 13:37:11,788 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:37:11,788 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-04 13:37:12,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-09-04 13:37:12,003 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:37:12,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:37:12,003 INFO L82 PathProgramCache]: Analyzing trace with hash -544683209, now seen corresponding path program 1 times [2020-09-04 13:37:12,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:37:12,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679298085] [2020-09-04 13:37:12,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:37:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:12,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:37:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:12,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:37:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:12,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-04 13:37:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:12,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-04 13:37:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:12,282 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 231 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-04 13:37:12,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679298085] [2020-09-04 13:37:12,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8587433] [2020-09-04 13:37:12,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:37:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:12,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:37:12,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:37:12,495 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-09-04 13:37:12,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:37:12,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-09-04 13:37:12,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122240078] [2020-09-04 13:37:12,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:37:12,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:37:12,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:37:12,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:37:12,498 INFO L87 Difference]: Start difference. First operand 5543 states and 6084 transitions. Second operand 3 states. [2020-09-04 13:37:13,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:37:13,149 INFO L93 Difference]: Finished difference Result 9881 states and 10832 transitions. [2020-09-04 13:37:13,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:37:13,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 254 [2020-09-04 13:37:13,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:37:13,151 INFO L225 Difference]: With dead ends: 9881 [2020-09-04 13:37:13,151 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 13:37:13,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:37:13,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 13:37:13,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 13:37:13,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 13:37:13,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 13:37:13,175 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 254 [2020-09-04 13:37:13,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:37:13,175 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 13:37:13,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:37:13,176 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 13:37:13,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 13:37:13,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:37:13,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 13:37:15,801 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 200 [2020-09-04 13:37:16,252 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 200 [2020-09-04 13:37:18,272 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 209 DAG size of output: 79 [2020-09-04 13:37:19,800 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 200 DAG size of output: 71 [2020-09-04 13:37:21,254 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 200 DAG size of output: 71 [2020-09-04 13:37:21,259 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:37:21,260 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-09-04 13:37:21,260 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:37:21,261 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,261 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,261 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,261 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,261 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,261 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-09-04 13:37:21,263 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-09-04 13:37:21,263 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-09-04 13:37:21,263 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-09-04 13:37:21,263 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-09-04 13:37:21,264 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-09-04 13:37:21,264 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-09-04 13:37:21,264 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-09-04 13:37:21,264 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-09-04 13:37:21,264 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-09-04 13:37:21,264 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-09-04 13:37:21,264 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-09-04 13:37:21,264 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-09-04 13:37:21,265 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,265 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,265 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,265 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,265 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-09-04 13:37:21,265 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,265 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-09-04 13:37:21,265 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-09-04 13:37:21,266 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-09-04 13:37:21,266 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-09-04 13:37:21,266 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-09-04 13:37:21,267 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-09-04 13:37:21,267 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-09-04 13:37:21,267 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-09-04 13:37:21,267 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-09-04 13:37:21,267 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-09-04 13:37:21,267 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-09-04 13:37:21,267 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-09-04 13:37:21,268 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-09-04 13:37:21,268 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-09-04 13:37:21,269 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-09-04 13:37:21,269 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,271 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,271 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,271 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,271 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,271 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 439) no Hoare annotation was computed. [2020-09-04 13:37:21,271 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-09-04 13:37:21,271 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-09-04 13:37:21,272 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-09-04 13:37:21,272 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-09-04 13:37:21,272 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-09-04 13:37:21,272 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-09-04 13:37:21,272 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-09-04 13:37:21,272 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-09-04 13:37:21,272 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-09-04 13:37:21,272 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-09-04 13:37:21,273 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-09-04 13:37:21,273 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,273 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,273 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,273 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,273 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,273 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-09-04 13:37:21,273 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-09-04 13:37:21,273 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-09-04 13:37:21,274 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-09-04 13:37:21,274 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-09-04 13:37:21,274 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-09-04 13:37:21,274 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-09-04 13:37:21,274 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-09-04 13:37:21,274 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-09-04 13:37:21,274 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-09-04 13:37:21,274 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-09-04 13:37:21,276 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-09-04 13:37:21,277 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-09-04 13:37:21,277 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,277 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,277 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,277 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,278 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,278 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-09-04 13:37:21,278 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-09-04 13:37:21,278 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-09-04 13:37:21,278 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-09-04 13:37:21,278 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-09-04 13:37:21,278 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-09-04 13:37:21,278 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-09-04 13:37:21,278 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-09-04 13:37:21,279 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-09-04 13:37:21,279 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-09-04 13:37:21,279 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-09-04 13:37:21,279 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-09-04 13:37:21,279 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-09-04 13:37:21,279 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-09-04 13:37:21,279 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-09-04 13:37:21,279 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-09-04 13:37:21,280 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,280 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,280 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,280 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,281 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-09-04 13:37:21,281 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,282 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-09-04 13:37:21,282 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,282 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-09-04 13:37:21,283 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-09-04 13:37:21,283 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-09-04 13:37:21,283 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,283 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,284 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-09-04 13:37:21,284 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-09-04 13:37:21,284 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-09-04 13:37:21,284 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-09-04 13:37:21,284 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-09-04 13:37:21,284 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-09-04 13:37:21,284 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-09-04 13:37:21,284 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-09-04 13:37:21,284 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-09-04 13:37:21,285 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-09-04 13:37:21,285 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-09-04 13:37:21,285 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,285 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,285 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,285 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,285 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,285 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,285 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-09-04 13:37:21,286 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-09-04 13:37:21,286 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-09-04 13:37:21,286 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-09-04 13:37:21,286 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-09-04 13:37:21,286 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-09-04 13:37:21,286 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-09-04 13:37:21,286 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-09-04 13:37:21,286 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-09-04 13:37:21,286 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-09-04 13:37:21,287 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-09-04 13:37:21,287 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,287 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,287 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,287 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,287 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,287 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,287 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-09-04 13:37:21,287 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-09-04 13:37:21,288 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-09-04 13:37:21,288 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-09-04 13:37:21,288 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-09-04 13:37:21,288 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-09-04 13:37:21,288 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-09-04 13:37:21,288 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-09-04 13:37:21,288 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-09-04 13:37:21,288 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-09-04 13:37:21,288 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-09-04 13:37:21,289 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-09-04 13:37:21,289 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-09-04 13:37:21,289 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-09-04 13:37:21,289 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,289 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,289 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,290 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse18 (= ~a17~0 8)) (.cse17 (= ~a25~0 |old(~a25~0)|)) (.cse15 (= ~a28~0 |old(~a28~0)|)) (.cse21 (= ~a17~0 |old(~a17~0)|)) (.cse16 (= ~a11~0 |old(~a11~0)|)) (.cse24 (= ~a25~0 1)) (.cse23 (<= ~a17~0 8)) (.cse22 (= ~a19~0 |old(~a19~0)|))) (let ((.cse4 (and .cse15 .cse21 .cse16 .cse24 .cse23 .cse22)) (.cse1 (not (= |old(~a25~0)| 1))) (.cse7 (and .cse15 .cse21 .cse16 .cse24 .cse22)) (.cse12 (and .cse15 .cse21 .cse16 .cse17 .cse23 .cse22)) (.cse0 (not (<= |old(~a28~0)| 7))) (.cse5 (not (<= |old(~a11~0)| 0))) (.cse11 (= |old(~a11~0)| |old(~a19~0)|)) (.cse6 (not (<= |old(~a19~0)| 0))) (.cse3 (not (= |old(~a19~0)| 1))) (.cse13 (= 10 |old(~a28~0)|)) (.cse20 (and .cse15 .cse16 .cse17 .cse18 .cse22)) (.cse19 (not (= 8 |old(~a17~0)|))) (.cse10 (not (<= |old(~a25~0)| 0))) (.cse2 (not (<= |old(~a17~0)| 8))) (.cse9 (and .cse15 .cse21 .cse16 .cse17 .cse22)) (.cse14 (not (<= |old(~a17~0)| 7))) (.cse8 (not (<= 9 |old(~a28~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse4 .cse6) (or .cse1 .cse2 .cse7 .cse3 .cse8) (or .cse1 .cse2 .cse7 (not (<= 10 |old(~a28~0)|)) .cse5 .cse6 .cse8) (or .cse2 .cse3 .cse9 .cse10 .cse11 .cse8) (or .cse2 .cse12 .cse13 (= 9 |old(~a28~0)|) .cse10 .cse6) (or .cse0 .cse12 .cse14) (or .cse0 .cse3 (and .cse15 .cse16 (= ~a19~0 1) .cse17 .cse18) .cse19 .cse10 .cse5) (or .cse13 .cse20 .cse19 .cse10 .cse11 .cse6) (or .cse3 .cse13 .cse20 .cse19 .cse10 .cse8) (or .cse2 .cse9 .cse14 .cse8)))) [2020-09-04 13:37:21,290 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,290 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,290 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,290 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-09-04 13:37:21,290 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-09-04 13:37:21,290 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-09-04 13:37:21,290 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-09-04 13:37:21,290 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-09-04 13:37:21,291 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-09-04 13:37:21,291 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-09-04 13:37:21,291 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-09-04 13:37:21,291 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-09-04 13:37:21,291 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-09-04 13:37:21,291 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-09-04 13:37:21,291 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-09-04 13:37:21,291 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-09-04 13:37:21,291 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,292 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,292 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,292 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,292 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,292 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,292 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-09-04 13:37:21,292 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-09-04 13:37:21,292 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-09-04 13:37:21,292 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-09-04 13:37:21,293 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-09-04 13:37:21,293 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-09-04 13:37:21,293 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-09-04 13:37:21,293 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-09-04 13:37:21,293 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-09-04 13:37:21,293 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-09-04 13:37:21,293 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-09-04 13:37:21,293 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-09-04 13:37:21,294 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-09-04 13:37:21,294 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-09-04 13:37:21,294 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-09-04 13:37:21,294 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-09-04 13:37:21,294 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,294 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,294 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,295 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,295 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:21,295 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-09-04 13:37:21,295 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-09-04 13:37:21,295 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-09-04 13:37:21,295 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-09-04 13:37:21,295 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-09-04 13:37:21,295 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-09-04 13:37:21,296 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-09-04 13:37:21,296 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-09-04 13:37:21,296 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-09-04 13:37:21,296 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-09-04 13:37:21,296 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-09-04 13:37:21,296 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-09-04 13:37:21,296 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-09-04 13:37:21,297 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-09-04 13:37:21,297 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-09-04 13:37:21,297 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-09-04 13:37:21,297 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-09-04 13:37:21,297 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-09-04 13:37:21,297 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-09-04 13:37:21,297 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:37:21,298 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a11~0 0) (= ~a19~0 1) (= ~a17~0 8) (<= ~a28~0 7) (<= ~a25~0 0)) [2020-09-04 13:37:21,298 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 13:37:21,298 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:37:21,298 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (<= |old(~a11~0)| 0))) [2020-09-04 13:37:21,298 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse5 (= ~a17~0 8)) (.cse7 (not (= ~a28~0 10))) (.cse12 (<= ~a11~0 |old(~a11~0)|)) (.cse6 (<= ~a19~0 0)) (.cse3 (= ~a25~0 1)) (.cse0 (<= 9 ~a28~0)) (.cse1 (= ~a19~0 1)) (.cse8 (not (= ~a11~0 ~a19~0))) (.cse9 (<= ~a25~0 0)) (.cse2 (<= ~a17~0 |old(~a17~0)|)) (.cse4 (<= ~a17~0 8)) (.cse10 (<= ~a28~0 7)) (.cse11 (<= ~a17~0 7))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= |old(~a19~0)| 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) .cse5 (= ~a19~0 |old(~a19~0)|)) (and .cse6 .cse7 .cse5 .cse8 .cse9) (and .cse0 .cse1 .cse7 .cse5 .cse9) (and .cse6 .cse2 .cse3 .cse4 .cse10) (and (not (= ~a28~0 9)) .cse6 .cse2 .cse7 .cse4 .cse9) (not (= 8 |old(~a17~0)|)) (and .cse0 .cse2 .cse4 .cse11) (not (<= |old(~a25~0)| 0)) (not (<= |old(~a28~0)| 7)) (and .cse12 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse10) (and .cse12 .cse6 .cse0 (<= 10 ~a28~0) .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse8 .cse4 .cse9) (and .cse2 .cse4 .cse10 .cse11) (not (<= |old(~a11~0)| 0)))) [2020-09-04 13:37:21,299 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-09-04 13:37:21,299 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-09-04 13:37:21,299 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse5 (= ~a17~0 8)) (.cse7 (not (= ~a28~0 10))) (.cse12 (<= ~a11~0 |old(~a11~0)|)) (.cse6 (<= ~a19~0 0)) (.cse3 (= ~a25~0 1)) (.cse0 (<= 9 ~a28~0)) (.cse1 (= ~a19~0 1)) (.cse8 (not (= ~a11~0 ~a19~0))) (.cse9 (<= ~a25~0 0)) (.cse2 (<= ~a17~0 |old(~a17~0)|)) (.cse4 (<= ~a17~0 8)) (.cse10 (<= ~a28~0 7)) (.cse11 (<= ~a17~0 7))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= |old(~a19~0)| 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) .cse5 (= ~a19~0 |old(~a19~0)|)) (and .cse6 .cse7 .cse5 .cse8 .cse9) (and .cse0 .cse1 .cse7 .cse5 .cse9) (and .cse6 .cse2 .cse3 .cse4 .cse10) (and (not (= ~a28~0 9)) .cse6 .cse2 .cse7 .cse4 .cse9) (not (= 8 |old(~a17~0)|)) (and .cse0 .cse2 .cse4 .cse11) (not (<= |old(~a25~0)| 0)) (not (<= |old(~a28~0)| 7)) (and .cse12 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 .cse10) (and .cse12 .cse6 .cse0 (<= 10 ~a28~0) .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse8 .cse4 .cse9) (and .cse2 .cse4 .cse10 .cse11) (not (<= |old(~a11~0)| 0)))) [2020-09-04 13:37:21,299 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-09-04 13:37:21,299 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-09-04 13:37:21,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:37:21 BoogieIcfgContainer [2020-09-04 13:37:21,351 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 13:37:21,353 INFO L168 Benchmark]: Toolchain (without parser) took 34560.41 ms. Allocated memory was 141.0 MB in the beginning and 622.3 MB in the end (delta: 481.3 MB). Free memory was 101.7 MB in the beginning and 101.9 MB in the end (delta: -254.6 kB). Peak memory consumption was 483.4 MB. Max. memory is 7.1 GB. [2020-09-04 13:37:21,354 INFO L168 Benchmark]: CDTParser took 1.43 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 13:37:21,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 861.80 ms. Allocated memory was 141.0 MB in the beginning and 207.1 MB in the end (delta: 66.1 MB). Free memory was 101.5 MB in the beginning and 173.3 MB in the end (delta: -71.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. [2020-09-04 13:37:21,360 INFO L168 Benchmark]: Boogie Preprocessor took 192.36 ms. Allocated memory is still 207.1 MB. Free memory was 173.3 MB in the beginning and 168.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-09-04 13:37:21,361 INFO L168 Benchmark]: RCFGBuilder took 1403.71 ms. Allocated memory was 207.1 MB in the beginning and 237.5 MB in the end (delta: 30.4 MB). Free memory was 168.4 MB in the beginning and 178.9 MB in the end (delta: -10.5 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2020-09-04 13:37:21,364 INFO L168 Benchmark]: TraceAbstraction took 32097.06 ms. Allocated memory was 237.5 MB in the beginning and 622.3 MB in the end (delta: 384.8 MB). Free memory was 178.9 MB in the beginning and 101.9 MB in the end (delta: 77.0 MB). Peak memory consumption was 464.2 MB. Max. memory is 7.1 GB. [2020-09-04 13:37:21,374 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.43 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 861.80 ms. Allocated memory was 141.0 MB in the beginning and 207.1 MB in the end (delta: 66.1 MB). Free memory was 101.5 MB in the beginning and 173.3 MB in the end (delta: -71.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 192.36 ms. Allocated memory is still 207.1 MB. Free memory was 173.3 MB in the beginning and 168.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1403.71 ms. Allocated memory was 207.1 MB in the beginning and 237.5 MB in the end (delta: 30.4 MB). Free memory was 168.4 MB in the beginning and 178.9 MB in the end (delta: -10.5 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32097.06 ms. Allocated memory was 237.5 MB in the beginning and 622.3 MB in the end (delta: 384.8 MB). Free memory was 178.9 MB in the beginning and 101.9 MB in the end (delta: 77.0 MB). Peak memory consumption was 464.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((((((((((((9 <= a28 && a19 == 1) && a17 <= \old(a17)) && a25 == 1) && a17 <= 8) || !(\old(a19) == 1)) || ((((a28 == \old(a28) && a11 == \old(a11)) && a25 == \old(a25)) && a17 == 8) && a19 == \old(a19))) || ((((a19 <= 0 && !(a28 == 10)) && a17 == 8) && !(a11 == a19)) && a25 <= 0)) || ((((9 <= a28 && a19 == 1) && !(a28 == 10)) && a17 == 8) && a25 <= 0)) || ((((a19 <= 0 && a17 <= \old(a17)) && a25 == 1) && a17 <= 8) && a28 <= 7)) || (((((!(a28 == 9) && a19 <= 0) && a17 <= \old(a17)) && !(a28 == 10)) && a17 <= 8) && a25 <= 0)) || !(8 == \old(a17))) || (((9 <= a28 && a17 <= \old(a17)) && a17 <= 8) && a17 <= 7)) || !(\old(a25) <= 0)) || !(\old(a28) <= 7)) || ((((a11 <= \old(a11) && a19 == 1) && a17 <= \old(a17)) && a25 == 1) && a17 <= 8)) || ((((a19 == 1 && a17 <= \old(a17)) && a25 == 1) && a17 <= 8) && a28 <= 7)) || ((((((a11 <= \old(a11) && a19 <= 0) && 9 <= a28) && 10 <= a28) && a17 <= \old(a17)) && a25 == 1) && a17 <= 8)) || ((((9 <= a28 && a19 == 1) && !(a11 == a19)) && a17 <= 8) && a25 <= 0)) || (((a17 <= \old(a17) && a17 <= 8) && a28 <= 7) && a17 <= 7)) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.0s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 16.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1160 SDtfs, 5859 SDslu, 534 SDs, 0 SdLazy, 8661 SolverSat, 1616 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1589 GetRequests, 1469 SyntacticMatches, 1 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5543occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 1188 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 178 PreInvPairs, 252 NumberOfFragments, 972 HoareAnnotationTreeSize, 178 FomulaSimplifications, 54928 FormulaSimplificationTreeSizeReduction, 2.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 17922 FormulaSimplificationTreeSizeReductionInter, 4.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 3030 NumberOfCodeBlocks, 3030 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3010 ConstructedInterpolants, 0 QuantifiedInterpolants, 1255130 SizeOfPredicates, 15 NumberOfNonLiveVariables, 3625 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 20 InterpolantComputations, 7 PerfectInterpolantSequences, 1262/1383 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...