/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 19:04:44,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 19:04:44,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 19:04:44,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 19:04:44,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 19:04:44,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 19:04:44,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 19:04:44,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 19:04:44,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 19:04:44,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 19:04:44,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 19:04:44,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 19:04:44,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 19:04:44,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 19:04:44,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 19:04:44,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 19:04:44,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 19:04:44,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 19:04:44,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 19:04:44,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 19:04:44,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 19:04:44,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 19:04:44,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 19:04:44,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 19:04:44,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 19:04:44,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 19:04:44,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 19:04:44,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 19:04:44,109 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 19:04:44,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 19:04:44,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 19:04:44,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 19:04:44,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 19:04:44,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 19:04:44,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 19:04:44,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 19:04:44,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 19:04:44,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 19:04:44,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 19:04:44,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 19:04:44,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 19:04:44,118 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 [2020-08-21 19:04:44,159 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 19:04:44,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 19:04:44,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 19:04:44,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 19:04:44,162 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 19:04:44,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 19:04:44,162 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 19:04:44,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 19:04:44,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 19:04:44,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 19:04:44,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 19:04:44,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 19:04:44,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 19:04:44,165 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 19:04:44,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 19:04:44,165 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 19:04:44,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 19:04:44,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 19:04:44,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 19:04:44,166 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 19:04:44,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 19:04:44,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 19:04:44,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 19:04:44,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 19:04:44,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 19:04:44,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 19:04:44,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 19:04:44,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 19:04:44,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 19:04:44,168 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-08-21 19:04:44,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 19:04:44,475 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 19:04:44,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 19:04:44,480 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 19:04:44,480 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 19:04:44,481 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-08-21 19:04:44,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad8889790/763deb9a971346eb9719139b7d93b437/FLAG0c821ba26 [2020-08-21 19:04:44,991 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 19:04:44,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-08-21 19:04:45,006 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad8889790/763deb9a971346eb9719139b7d93b437/FLAG0c821ba26 [2020-08-21 19:04:45,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad8889790/763deb9a971346eb9719139b7d93b437 [2020-08-21 19:04:45,337 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 19:04:45,339 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 19:04:45,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 19:04:45,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 19:04:45,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 19:04:45,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:04:45" (1/1) ... [2020-08-21 19:04:45,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e0386e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:04:45, skipping insertion in model container [2020-08-21 19:04:45,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:04:45" (1/1) ... [2020-08-21 19:04:45,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 19:04:45,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 19:04:45,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:04:45,651 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 19:04:45,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:04:45,708 INFO L208 MainTranslator]: Completed translation [2020-08-21 19:04:45,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:04:45 WrapperNode [2020-08-21 19:04:45,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 19:04:45,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 19:04:45,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 19:04:45,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 19:04:45,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:04:45" (1/1) ... [2020-08-21 19:04:45,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:04:45" (1/1) ... [2020-08-21 19:04:45,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:04:45" (1/1) ... [2020-08-21 19:04:45,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:04:45" (1/1) ... [2020-08-21 19:04:45,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:04:45" (1/1) ... [2020-08-21 19:04:45,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:04:45" (1/1) ... [2020-08-21 19:04:45,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:04:45" (1/1) ... [2020-08-21 19:04:45,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 19:04:45,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 19:04:45,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 19:04:45,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 19:04:45,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:04:45" (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 [2020-08-21 19:04:45,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 19:04:45,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 19:04:45,914 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-21 19:04:45,914 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 19:04:45,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 19:04:45,914 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 19:04:45,914 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-21 19:04:45,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-21 19:04:45,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 19:04:45,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 19:04:45,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 19:04:45,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 19:04:46,344 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 19:04:46,345 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 19:04:46,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:04:46 BoogieIcfgContainer [2020-08-21 19:04:46,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 19:04:46,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 19:04:46,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 19:04:46,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 19:04:46,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 07:04:45" (1/3) ... [2020-08-21 19:04:46,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164444d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:04:46, skipping insertion in model container [2020-08-21 19:04:46,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:04:45" (2/3) ... [2020-08-21 19:04:46,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164444d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:04:46, skipping insertion in model container [2020-08-21 19:04:46,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:04:46" (3/3) ... [2020-08-21 19:04:46,359 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-08-21 19:04:46,369 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 19:04:46,377 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-08-21 19:04:46,391 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-08-21 19:04:46,417 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 19:04:46,417 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 19:04:46,417 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 19:04:46,418 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 19:04:46,418 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 19:04:46,418 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 19:04:46,418 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 19:04:46,418 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 19:04:46,443 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-08-21 19:04:46,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-21 19:04:46,449 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:46,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:04:46,451 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:46,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:46,457 INFO L82 PathProgramCache]: Analyzing trace with hash -2019463306, now seen corresponding path program 1 times [2020-08-21 19:04:46,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:46,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587723192] [2020-08-21 19:04:46,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:46,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:46,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:46,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587723192] [2020-08-21 19:04:46,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:46,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 19:04:46,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933272518] [2020-08-21 19:04:46,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 19:04:46,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:46,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 19:04:46,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 19:04:46,720 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2020-08-21 19:04:46,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:46,849 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2020-08-21 19:04:46,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 19:04:46,851 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-08-21 19:04:46,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:46,863 INFO L225 Difference]: With dead ends: 93 [2020-08-21 19:04:46,863 INFO L226 Difference]: Without dead ends: 80 [2020-08-21 19:04:46,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 19:04:46,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-08-21 19:04:46,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-08-21 19:04:46,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-08-21 19:04:46,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2020-08-21 19:04:46,918 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 19 [2020-08-21 19:04:46,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:46,918 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2020-08-21 19:04:46,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 19:04:46,919 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2020-08-21 19:04:46,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-21 19:04:46,920 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:46,920 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] [2020-08-21 19:04:46,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 19:04:46,921 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:46,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:46,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1821150056, now seen corresponding path program 1 times [2020-08-21 19:04:46,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:46,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1371076063] [2020-08-21 19:04:46,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:47,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:47,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:47,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1371076063] [2020-08-21 19:04:47,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:47,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 19:04:47,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57066954] [2020-08-21 19:04:47,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 19:04:47,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:47,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 19:04:47,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-21 19:04:47,099 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand 7 states. [2020-08-21 19:04:47,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:47,338 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2020-08-21 19:04:47,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 19:04:47,352 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-08-21 19:04:47,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:47,354 INFO L225 Difference]: With dead ends: 80 [2020-08-21 19:04:47,354 INFO L226 Difference]: Without dead ends: 78 [2020-08-21 19:04:47,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-08-21 19:04:47,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-08-21 19:04:47,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-08-21 19:04:47,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-08-21 19:04:47,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2020-08-21 19:04:47,368 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 20 [2020-08-21 19:04:47,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:47,368 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2020-08-21 19:04:47,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 19:04:47,369 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2020-08-21 19:04:47,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-08-21 19:04:47,370 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:47,370 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] [2020-08-21 19:04:47,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 19:04:47,371 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:47,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:47,371 INFO L82 PathProgramCache]: Analyzing trace with hash 2073610827, now seen corresponding path program 1 times [2020-08-21 19:04:47,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:47,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [859411432] [2020-08-21 19:04:47,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:47,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:47,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:47,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [859411432] [2020-08-21 19:04:47,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:47,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 19:04:47,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109516880] [2020-08-21 19:04:47,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 19:04:47,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:47,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 19:04:47,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 19:04:47,458 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand 5 states. [2020-08-21 19:04:47,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:47,657 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2020-08-21 19:04:47,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 19:04:47,658 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-08-21 19:04:47,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:47,660 INFO L225 Difference]: With dead ends: 101 [2020-08-21 19:04:47,661 INFO L226 Difference]: Without dead ends: 99 [2020-08-21 19:04:47,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-21 19:04:47,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-08-21 19:04:47,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 76. [2020-08-21 19:04:47,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-08-21 19:04:47,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2020-08-21 19:04:47,672 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 22 [2020-08-21 19:04:47,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:47,673 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2020-08-21 19:04:47,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 19:04:47,676 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2020-08-21 19:04:47,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-21 19:04:47,677 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:47,677 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] [2020-08-21 19:04:47,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 19:04:47,677 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:47,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:47,678 INFO L82 PathProgramCache]: Analyzing trace with hash -142570686, now seen corresponding path program 1 times [2020-08-21 19:04:47,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:47,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118686787] [2020-08-21 19:04:47,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:47,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:47,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:47,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118686787] [2020-08-21 19:04:47,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:47,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:04:47,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306240707] [2020-08-21 19:04:47,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:47,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:47,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:47,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:47,821 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 6 states. [2020-08-21 19:04:47,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:47,983 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-08-21 19:04:47,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 19:04:47,984 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-08-21 19:04:47,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:47,985 INFO L225 Difference]: With dead ends: 76 [2020-08-21 19:04:47,985 INFO L226 Difference]: Without dead ends: 74 [2020-08-21 19:04:47,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:04:47,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-08-21 19:04:47,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-08-21 19:04:47,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-08-21 19:04:48,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2020-08-21 19:04:48,006 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 23 [2020-08-21 19:04:48,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:48,007 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2020-08-21 19:04:48,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:48,007 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2020-08-21 19:04:48,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-21 19:04:48,008 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:48,008 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] [2020-08-21 19:04:48,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 19:04:48,009 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:48,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:48,010 INFO L82 PathProgramCache]: Analyzing trace with hash 402497124, now seen corresponding path program 1 times [2020-08-21 19:04:48,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:48,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580616727] [2020-08-21 19:04:48,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:48,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:48,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:48,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580616727] [2020-08-21 19:04:48,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:48,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:04:48,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987383493] [2020-08-21 19:04:48,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:48,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:48,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:48,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:48,142 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 6 states. [2020-08-21 19:04:48,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:48,609 INFO L93 Difference]: Finished difference Result 141 states and 147 transitions. [2020-08-21 19:04:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 19:04:48,609 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-08-21 19:04:48,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:48,611 INFO L225 Difference]: With dead ends: 141 [2020-08-21 19:04:48,611 INFO L226 Difference]: Without dead ends: 139 [2020-08-21 19:04:48,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-08-21 19:04:48,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-08-21 19:04:48,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 77. [2020-08-21 19:04:48,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-08-21 19:04:48,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-08-21 19:04:48,622 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 26 [2020-08-21 19:04:48,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:48,622 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-08-21 19:04:48,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:48,623 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-08-21 19:04:48,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-21 19:04:48,624 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:48,624 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] [2020-08-21 19:04:48,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 19:04:48,625 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:48,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:48,625 INFO L82 PathProgramCache]: Analyzing trace with hash 406230933, now seen corresponding path program 1 times [2020-08-21 19:04:48,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:48,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099079102] [2020-08-21 19:04:48,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:48,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:48,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:48,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099079102] [2020-08-21 19:04:48,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:48,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:04:48,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878340372] [2020-08-21 19:04:48,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:48,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:48,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:48,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:48,721 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 6 states. [2020-08-21 19:04:49,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:49,034 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2020-08-21 19:04:49,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 19:04:49,035 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-08-21 19:04:49,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:49,036 INFO L225 Difference]: With dead ends: 108 [2020-08-21 19:04:49,036 INFO L226 Difference]: Without dead ends: 106 [2020-08-21 19:04:49,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-08-21 19:04:49,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-08-21 19:04:49,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 79. [2020-08-21 19:04:49,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-08-21 19:04:49,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-08-21 19:04:49,045 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 26 [2020-08-21 19:04:49,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:49,046 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-08-21 19:04:49,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:49,046 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-08-21 19:04:49,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-21 19:04:49,047 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:49,047 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] [2020-08-21 19:04:49,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 19:04:49,048 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:49,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:49,048 INFO L82 PathProgramCache]: Analyzing trace with hash -407487796, now seen corresponding path program 1 times [2020-08-21 19:04:49,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:49,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857834921] [2020-08-21 19:04:49,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:49,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:49,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:49,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857834921] [2020-08-21 19:04:49,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:49,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:04:49,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246249374] [2020-08-21 19:04:49,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:49,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:49,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:49,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:49,108 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 6 states. [2020-08-21 19:04:49,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:49,386 INFO L93 Difference]: Finished difference Result 121 states and 127 transitions. [2020-08-21 19:04:49,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 19:04:49,386 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-08-21 19:04:49,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:49,388 INFO L225 Difference]: With dead ends: 121 [2020-08-21 19:04:49,389 INFO L226 Difference]: Without dead ends: 119 [2020-08-21 19:04:49,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:04:49,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-08-21 19:04:49,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2020-08-21 19:04:49,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-08-21 19:04:49,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-08-21 19:04:49,397 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 27 [2020-08-21 19:04:49,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:49,397 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-08-21 19:04:49,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:49,397 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-08-21 19:04:49,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-21 19:04:49,398 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:49,398 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] [2020-08-21 19:04:49,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 19:04:49,399 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:49,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:49,399 INFO L82 PathProgramCache]: Analyzing trace with hash -291739827, now seen corresponding path program 1 times [2020-08-21 19:04:49,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:49,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1609992390] [2020-08-21 19:04:49,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:49,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:49,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:49,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1609992390] [2020-08-21 19:04:49,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:49,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:04:49,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276269104] [2020-08-21 19:04:49,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:49,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:49,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:49,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:49,483 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 6 states. [2020-08-21 19:04:49,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:49,654 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-08-21 19:04:49,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 19:04:49,654 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-08-21 19:04:49,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:49,655 INFO L225 Difference]: With dead ends: 77 [2020-08-21 19:04:49,655 INFO L226 Difference]: Without dead ends: 75 [2020-08-21 19:04:49,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:04:49,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-08-21 19:04:49,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-08-21 19:04:49,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-08-21 19:04:49,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2020-08-21 19:04:49,665 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 27 [2020-08-21 19:04:49,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:49,665 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2020-08-21 19:04:49,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:49,665 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2020-08-21 19:04:49,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-08-21 19:04:49,666 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:49,666 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] [2020-08-21 19:04:49,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 19:04:49,667 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:49,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:49,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1188998893, now seen corresponding path program 1 times [2020-08-21 19:04:49,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:49,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687475696] [2020-08-21 19:04:49,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:49,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:49,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:49,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687475696] [2020-08-21 19:04:49,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:49,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 19:04:49,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977490336] [2020-08-21 19:04:49,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 19:04:49,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:49,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 19:04:49,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 19:04:49,718 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 4 states. [2020-08-21 19:04:49,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:49,826 INFO L93 Difference]: Finished difference Result 115 states and 121 transitions. [2020-08-21 19:04:49,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 19:04:49,827 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-08-21 19:04:49,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:49,828 INFO L225 Difference]: With dead ends: 115 [2020-08-21 19:04:49,828 INFO L226 Difference]: Without dead ends: 75 [2020-08-21 19:04:49,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 19:04:49,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-08-21 19:04:49,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-08-21 19:04:49,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-08-21 19:04:49,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2020-08-21 19:04:49,834 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 29 [2020-08-21 19:04:49,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:49,835 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2020-08-21 19:04:49,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 19:04:49,835 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2020-08-21 19:04:49,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-21 19:04:49,836 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:49,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:04:49,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 19:04:49,836 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:49,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:49,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1640998784, now seen corresponding path program 1 times [2020-08-21 19:04:49,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:49,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656892279] [2020-08-21 19:04:49,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:49,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:49,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:49,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656892279] [2020-08-21 19:04:49,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:49,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:04:49,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728500010] [2020-08-21 19:04:49,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:49,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:49,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:49,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:49,913 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand 6 states. [2020-08-21 19:04:50,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:50,065 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-08-21 19:04:50,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 19:04:50,065 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-08-21 19:04:50,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:50,066 INFO L225 Difference]: With dead ends: 76 [2020-08-21 19:04:50,066 INFO L226 Difference]: Without dead ends: 74 [2020-08-21 19:04:50,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-21 19:04:50,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-08-21 19:04:50,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2020-08-21 19:04:50,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-08-21 19:04:50,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2020-08-21 19:04:50,073 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 30 [2020-08-21 19:04:50,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:50,073 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2020-08-21 19:04:50,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:50,073 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2020-08-21 19:04:50,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-21 19:04:50,074 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:50,074 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-21 19:04:50,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 19:04:50,075 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:50,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:50,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1892106755, now seen corresponding path program 1 times [2020-08-21 19:04:50,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:50,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350623446] [2020-08-21 19:04:50,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:50,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:50,155 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 19:04:50,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350623446] [2020-08-21 19:04:50,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:04:50,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 19:04:50,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205899093] [2020-08-21 19:04:50,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:50,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:50,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:50,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:50,158 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 6 states. [2020-08-21 19:04:50,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:50,371 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2020-08-21 19:04:50,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 19:04:50,372 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-08-21 19:04:50,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:50,373 INFO L225 Difference]: With dead ends: 111 [2020-08-21 19:04:50,373 INFO L226 Difference]: Without dead ends: 109 [2020-08-21 19:04:50,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-21 19:04:50,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-08-21 19:04:50,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 70. [2020-08-21 19:04:50,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-08-21 19:04:50,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2020-08-21 19:04:50,383 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 30 [2020-08-21 19:04:50,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:50,383 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2020-08-21 19:04:50,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:50,383 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2020-08-21 19:04:50,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-21 19:04:50,387 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:50,387 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] [2020-08-21 19:04:50,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 19:04:50,388 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:50,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:50,388 INFO L82 PathProgramCache]: Analyzing trace with hash 668648404, now seen corresponding path program 1 times [2020-08-21 19:04:50,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:50,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047028650] [2020-08-21 19:04:50,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:50,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:50,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:50,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047028650] [2020-08-21 19:04:50,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:50,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:04:50,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555203338] [2020-08-21 19:04:50,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:50,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:50,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:50,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:50,471 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand 6 states. [2020-08-21 19:04:50,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:50,610 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-08-21 19:04:50,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 19:04:50,611 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-08-21 19:04:50,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:50,612 INFO L225 Difference]: With dead ends: 70 [2020-08-21 19:04:50,612 INFO L226 Difference]: Without dead ends: 68 [2020-08-21 19:04:50,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:04:50,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-21 19:04:50,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-08-21 19:04:50,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-08-21 19:04:50,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2020-08-21 19:04:50,618 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 31 [2020-08-21 19:04:50,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:50,618 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2020-08-21 19:04:50,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:50,619 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2020-08-21 19:04:50,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-21 19:04:50,622 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:50,622 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-21 19:04:50,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-21 19:04:50,623 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:50,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:50,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1470784207, now seen corresponding path program 1 times [2020-08-21 19:04:50,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:50,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245987102] [2020-08-21 19:04:50,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:50,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:50,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 19:04:50,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245987102] [2020-08-21 19:04:50,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:04:50,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 19:04:50,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449605868] [2020-08-21 19:04:50,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:50,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:50,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:50,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:50,720 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 6 states. [2020-08-21 19:04:50,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:50,831 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2020-08-21 19:04:50,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 19:04:50,832 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-08-21 19:04:50,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:50,832 INFO L225 Difference]: With dead ends: 69 [2020-08-21 19:04:50,833 INFO L226 Difference]: Without dead ends: 67 [2020-08-21 19:04:50,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-21 19:04:50,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-08-21 19:04:50,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 62. [2020-08-21 19:04:50,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-08-21 19:04:50,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2020-08-21 19:04:50,838 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 31 [2020-08-21 19:04:50,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:50,838 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2020-08-21 19:04:50,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:50,839 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2020-08-21 19:04:50,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-08-21 19:04:50,839 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:50,839 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] [2020-08-21 19:04:50,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-21 19:04:50,840 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:50,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:50,841 INFO L82 PathProgramCache]: Analyzing trace with hash -350608983, now seen corresponding path program 1 times [2020-08-21 19:04:50,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:50,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234959259] [2020-08-21 19:04:50,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:50,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:50,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:50,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234959259] [2020-08-21 19:04:50,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:50,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:04:50,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681337414] [2020-08-21 19:04:50,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:50,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:50,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:50,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:50,936 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand 6 states. [2020-08-21 19:04:51,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:51,051 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2020-08-21 19:04:51,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 19:04:51,051 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-08-21 19:04:51,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:51,052 INFO L225 Difference]: With dead ends: 63 [2020-08-21 19:04:51,052 INFO L226 Difference]: Without dead ends: 61 [2020-08-21 19:04:51,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-21 19:04:51,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-08-21 19:04:51,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2020-08-21 19:04:51,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-08-21 19:04:51,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2020-08-21 19:04:51,056 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 34 [2020-08-21 19:04:51,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:51,056 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2020-08-21 19:04:51,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:51,057 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2020-08-21 19:04:51,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-08-21 19:04:51,057 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:51,057 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] [2020-08-21 19:04:51,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-21 19:04:51,058 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:51,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:51,058 INFO L82 PathProgramCache]: Analyzing trace with hash 2016026591, now seen corresponding path program 1 times [2020-08-21 19:04:51,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:51,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756099153] [2020-08-21 19:04:51,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:51,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:51,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:51,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756099153] [2020-08-21 19:04:51,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:51,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 19:04:51,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522713171] [2020-08-21 19:04:51,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 19:04:51,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:51,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 19:04:51,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-21 19:04:51,118 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand 7 states. [2020-08-21 19:04:51,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:51,302 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2020-08-21 19:04:51,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 19:04:51,302 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-08-21 19:04:51,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:51,304 INFO L225 Difference]: With dead ends: 71 [2020-08-21 19:04:51,304 INFO L226 Difference]: Without dead ends: 69 [2020-08-21 19:04:51,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-08-21 19:04:51,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-08-21 19:04:51,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 58. [2020-08-21 19:04:51,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-08-21 19:04:51,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2020-08-21 19:04:51,314 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 35 [2020-08-21 19:04:51,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:51,315 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2020-08-21 19:04:51,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 19:04:51,315 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-08-21 19:04:51,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-08-21 19:04:51,317 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:51,317 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] [2020-08-21 19:04:51,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-21 19:04:51,318 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:51,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:51,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1371399406, now seen corresponding path program 1 times [2020-08-21 19:04:51,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:51,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669848515] [2020-08-21 19:04:51,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:51,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:51,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:51,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669848515] [2020-08-21 19:04:51,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:51,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:04:51,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335741855] [2020-08-21 19:04:51,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:51,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:51,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:51,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:51,407 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 6 states. [2020-08-21 19:04:51,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:51,655 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2020-08-21 19:04:51,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 19:04:51,656 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-08-21 19:04:51,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:51,657 INFO L225 Difference]: With dead ends: 91 [2020-08-21 19:04:51,657 INFO L226 Difference]: Without dead ends: 89 [2020-08-21 19:04:51,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-08-21 19:04:51,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-08-21 19:04:51,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 61. [2020-08-21 19:04:51,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-08-21 19:04:51,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2020-08-21 19:04:51,663 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 38 [2020-08-21 19:04:51,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:51,663 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2020-08-21 19:04:51,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:51,663 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2020-08-21 19:04:51,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-08-21 19:04:51,664 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:51,664 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] [2020-08-21 19:04:51,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-21 19:04:51,664 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:51,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:51,665 INFO L82 PathProgramCache]: Analyzing trace with hash 436294569, now seen corresponding path program 1 times [2020-08-21 19:04:51,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:51,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134177905] [2020-08-21 19:04:51,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:51,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:51,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:51,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [134177905] [2020-08-21 19:04:51,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:51,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:04:51,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739859739] [2020-08-21 19:04:51,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:51,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:51,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:51,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:51,720 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand 6 states. [2020-08-21 19:04:51,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:51,886 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2020-08-21 19:04:51,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 19:04:51,886 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-08-21 19:04:51,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:51,887 INFO L225 Difference]: With dead ends: 61 [2020-08-21 19:04:51,887 INFO L226 Difference]: Without dead ends: 59 [2020-08-21 19:04:51,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:04:51,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-08-21 19:04:51,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-08-21 19:04:51,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-08-21 19:04:51,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-08-21 19:04:51,893 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 39 [2020-08-21 19:04:51,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:51,894 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-08-21 19:04:51,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:51,894 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-08-21 19:04:51,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-08-21 19:04:51,894 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:51,895 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] [2020-08-21 19:04:51,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-21 19:04:51,895 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:51,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:51,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1627614740, now seen corresponding path program 1 times [2020-08-21 19:04:51,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:51,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516237972] [2020-08-21 19:04:51,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:51,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:51,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:51,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516237972] [2020-08-21 19:04:51,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:51,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:04:51,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411833352] [2020-08-21 19:04:51,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:51,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:51,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:51,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:51,949 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 6 states. [2020-08-21 19:04:52,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:52,104 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-08-21 19:04:52,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 19:04:52,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-08-21 19:04:52,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:52,106 INFO L225 Difference]: With dead ends: 70 [2020-08-21 19:04:52,106 INFO L226 Difference]: Without dead ends: 68 [2020-08-21 19:04:52,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:04:52,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-21 19:04:52,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-08-21 19:04:52,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-08-21 19:04:52,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-08-21 19:04:52,114 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 41 [2020-08-21 19:04:52,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:52,114 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-08-21 19:04:52,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:52,115 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-08-21 19:04:52,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-08-21 19:04:52,116 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:52,116 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] [2020-08-21 19:04:52,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-08-21 19:04:52,116 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:52,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:52,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1083553822, now seen corresponding path program 1 times [2020-08-21 19:04:52,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:52,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450899430] [2020-08-21 19:04:52,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:52,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:52,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:52,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1450899430] [2020-08-21 19:04:52,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:52,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:04:52,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188351467] [2020-08-21 19:04:52,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:52,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:52,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:52,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:52,174 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand 6 states. [2020-08-21 19:04:52,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:52,404 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2020-08-21 19:04:52,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 19:04:52,405 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-08-21 19:04:52,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:52,406 INFO L225 Difference]: With dead ends: 68 [2020-08-21 19:04:52,406 INFO L226 Difference]: Without dead ends: 66 [2020-08-21 19:04:52,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:04:52,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-08-21 19:04:52,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2020-08-21 19:04:52,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-08-21 19:04:52,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2020-08-21 19:04:52,412 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 42 [2020-08-21 19:04:52,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:52,412 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2020-08-21 19:04:52,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:52,412 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2020-08-21 19:04:52,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-08-21 19:04:52,413 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:52,413 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] [2020-08-21 19:04:52,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-08-21 19:04:52,414 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:52,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:52,414 INFO L82 PathProgramCache]: Analyzing trace with hash -769566670, now seen corresponding path program 1 times [2020-08-21 19:04:52,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:52,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328532104] [2020-08-21 19:04:52,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:52,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:52,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:52,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328532104] [2020-08-21 19:04:52,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:52,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:04:52,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668078697] [2020-08-21 19:04:52,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:52,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:52,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:52,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:52,498 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 6 states. [2020-08-21 19:04:52,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:52,756 INFO L93 Difference]: Finished difference Result 90 states and 95 transitions. [2020-08-21 19:04:52,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 19:04:52,757 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-08-21 19:04:52,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:52,758 INFO L225 Difference]: With dead ends: 90 [2020-08-21 19:04:52,758 INFO L226 Difference]: Without dead ends: 88 [2020-08-21 19:04:52,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-08-21 19:04:52,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-08-21 19:04:52,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 69. [2020-08-21 19:04:52,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-08-21 19:04:52,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2020-08-21 19:04:52,764 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 43 [2020-08-21 19:04:52,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:52,764 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2020-08-21 19:04:52,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:52,764 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2020-08-21 19:04:52,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-08-21 19:04:52,765 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:52,765 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] [2020-08-21 19:04:52,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-08-21 19:04:52,766 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:52,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:52,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1913240228, now seen corresponding path program 1 times [2020-08-21 19:04:52,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:52,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623314074] [2020-08-21 19:04:52,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:52,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:52,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:52,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623314074] [2020-08-21 19:04:52,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:52,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:04:52,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305699925] [2020-08-21 19:04:52,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:52,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:52,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:52,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:52,828 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand 6 states. [2020-08-21 19:04:53,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:53,002 INFO L93 Difference]: Finished difference Result 75 states and 79 transitions. [2020-08-21 19:04:53,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 19:04:53,002 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-08-21 19:04:53,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:53,003 INFO L225 Difference]: With dead ends: 75 [2020-08-21 19:04:53,003 INFO L226 Difference]: Without dead ends: 73 [2020-08-21 19:04:53,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:04:53,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-08-21 19:04:53,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 67. [2020-08-21 19:04:53,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-08-21 19:04:53,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2020-08-21 19:04:53,010 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 44 [2020-08-21 19:04:53,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:53,010 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2020-08-21 19:04:53,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:53,010 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2020-08-21 19:04:53,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-08-21 19:04:53,011 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:53,011 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:04:53,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-08-21 19:04:53,012 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:53,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:53,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1562566919, now seen corresponding path program 1 times [2020-08-21 19:04:53,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:53,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154627716] [2020-08-21 19:04:53,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:53,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:53,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:04:53,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154627716] [2020-08-21 19:04:53,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:04:53,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 19:04:53,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971640570] [2020-08-21 19:04:53,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:53,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:53,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:53,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:53,084 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand 6 states. [2020-08-21 19:04:53,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:53,197 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2020-08-21 19:04:53,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 19:04:53,199 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-08-21 19:04:53,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:53,200 INFO L225 Difference]: With dead ends: 67 [2020-08-21 19:04:53,201 INFO L226 Difference]: Without dead ends: 65 [2020-08-21 19:04:53,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-21 19:04:53,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-08-21 19:04:53,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-08-21 19:04:53,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-08-21 19:04:53,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2020-08-21 19:04:53,208 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 44 [2020-08-21 19:04:53,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:53,209 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2020-08-21 19:04:53,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:53,209 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2020-08-21 19:04:53,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-08-21 19:04:53,210 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:53,210 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] [2020-08-21 19:04:53,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-08-21 19:04:53,211 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:53,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:53,212 INFO L82 PathProgramCache]: Analyzing trace with hash 790604971, now seen corresponding path program 1 times [2020-08-21 19:04:53,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:53,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398009429] [2020-08-21 19:04:53,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:53,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:53,283 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-21 19:04:53,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398009429] [2020-08-21 19:04:53,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:53,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:04:53,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865741550] [2020-08-21 19:04:53,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:04:53,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:53,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:04:53,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:04:53,286 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 6 states. [2020-08-21 19:04:53,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:53,574 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-08-21 19:04:53,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 19:04:53,575 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-08-21 19:04:53,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:53,576 INFO L225 Difference]: With dead ends: 77 [2020-08-21 19:04:53,576 INFO L226 Difference]: Without dead ends: 75 [2020-08-21 19:04:53,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-08-21 19:04:53,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-08-21 19:04:53,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 55. [2020-08-21 19:04:53,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-08-21 19:04:53,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2020-08-21 19:04:53,584 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 49 [2020-08-21 19:04:53,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:53,584 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2020-08-21 19:04:53,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:04:53,585 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2020-08-21 19:04:53,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-21 19:04:53,585 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:04:53,586 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:04:53,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-08-21 19:04:53,586 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:04:53,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:04:53,587 INFO L82 PathProgramCache]: Analyzing trace with hash 705971477, now seen corresponding path program 1 times [2020-08-21 19:04:53,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:04:53,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627162914] [2020-08-21 19:04:53,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:04:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:53,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:04:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:04:53,634 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-21 19:04:53,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627162914] [2020-08-21 19:04:53,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:04:53,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 19:04:53,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586397626] [2020-08-21 19:04:53,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 19:04:53,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:04:53,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 19:04:53,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 19:04:53,636 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 5 states. [2020-08-21 19:04:53,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:04:53,759 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2020-08-21 19:04:53,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 19:04:53,760 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-08-21 19:04:53,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:04:53,760 INFO L225 Difference]: With dead ends: 60 [2020-08-21 19:04:53,761 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 19:04:53,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-21 19:04:53,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 19:04:53,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 19:04:53,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 19:04:53,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 19:04:53,762 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-08-21 19:04:53,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:04:53,762 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 19:04:53,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 19:04:53,763 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 19:04:53,763 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 19:04:53,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-08-21 19:04:53,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 19:04:54,171 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 35 [2020-08-21 19:04:54,605 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2020-08-21 19:04:54,844 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2020-08-21 19:04:55,146 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2020-08-21 19:04:55,150 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 19:04:55,151 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_375~0 |old(~__return_375~0)|)) [2020-08-21 19:04:55,151 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 19:04:55,151 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 19:04:55,151 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-21 19:04:55,151 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 19:04:55,151 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 19:04:55,151 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-08-21 19:04:55,152 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-08-21 19:04:55,152 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-08-21 19:04:55,152 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-08-21 19:04:55,152 INFO L268 CegarLoopResult]: For program point L192(lines 192 352) no Hoare annotation was computed. [2020-08-21 19:04:55,153 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2020-08-21 19:04:55,153 INFO L268 CegarLoopResult]: For program point L382(lines 382 391) no Hoare annotation was computed. [2020-08-21 19:04:55,153 INFO L268 CegarLoopResult]: For program point L93(lines 93 410) no Hoare annotation was computed. [2020-08-21 19:04:55,153 INFO L268 CegarLoopResult]: For program point L27(lines 27 435) no Hoare annotation was computed. [2020-08-21 19:04:55,153 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 437) no Hoare annotation was computed. [2020-08-21 19:04:55,153 INFO L268 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-08-21 19:04:55,153 INFO L264 CegarLoopResult]: At program point L399(lines 129 400) the Hoare annotation is: (and (< main_~main__cp~0 main_~main__urilen~0) (= main_~__VERIFIER_assert__cond~3 1) (let ((.cse0 (< 0 main_~main__scheme~0)) (.cse1 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse2 (<= 1 main_~main__cp~0)) (.cse3 (not (= main_~__VERIFIER_assert__cond~1 0)))) (or (and .cse0 .cse1 (not (= main_~__VERIFIER_assert__cond~2 0)) (not (= main_~__VERIFIER_assert__cond~16 0)) .cse2 .cse3) (and .cse0 .cse1 (= main_~__VERIFIER_assert__cond~2 1) .cse2 .cse3))) (= |old(~__return_375~0)| ~__return_375~0)) [2020-08-21 19:04:55,154 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 253) no Hoare annotation was computed. [2020-08-21 19:04:55,154 INFO L268 CegarLoopResult]: For program point L102(lines 102 409) no Hoare annotation was computed. [2020-08-21 19:04:55,154 INFO L268 CegarLoopResult]: For program point L69(lines 69 414) no Hoare annotation was computed. [2020-08-21 19:04:55,154 INFO L264 CegarLoopResult]: At program point L325(lines 260 326) the Hoare annotation is: (let ((.cse17 (+ main_~main__cp~0 1))) (let ((.cse0 (not (= main_~__VERIFIER_assert__cond~5 0))) (.cse1 (= main_~__VERIFIER_assert__cond~10 1)) (.cse2 (< 0 main_~main__scheme~0)) (.cse3 (not (= main_~main__urilen~0 .cse17))) (.cse4 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse5 (not (= main_~__VERIFIER_assert__cond~2 0))) (.cse6 (not (= main_~__VERIFIER_assert__cond~11 0))) (.cse7 (= main_~__VERIFIER_assert__cond~3 1)) (.cse8 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse9 (= |old(~__return_375~0)| ~__return_375~0)) (.cse10 (not (= main_~__VERIFIER_assert__cond~8 0))) (.cse11 (<= .cse17 main_~main__urilen~0)) (.cse12 (= main_~__VERIFIER_assert__cond~9 1)) (.cse13 (not (= main_~__VERIFIER_assert__cond~6 0))) (.cse14 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse15 (<= 1 main_~main__cp~0)) (.cse16 (not (= main_~__VERIFIER_assert__cond~1 0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= 1 main_~main__c~0) .cse10 .cse11 .cse12 .cse13 .cse14 (not (= main_~__VERIFIER_assert__cond~15 0)) (not (= main_~__VERIFIER_assert__cond~13 0)) (not (= main_~__VERIFIER_assert__cond~14 0)) .cse15 (not (= main_~__VERIFIER_assert__cond~12 0)) .cse16) (and .cse0 .cse1 .cse2 (<= (+ main_~main__c~0 2) main_~main__tokenlen~0) .cse3 .cse4 .cse5 .cse6 (= main_~main__c~0 0) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16)))) [2020-08-21 19:04:55,155 INFO L268 CegarLoopResult]: For program point L292(lines 292 316) no Hoare annotation was computed. [2020-08-21 19:04:55,155 INFO L268 CegarLoopResult]: For program point L160(lines 160 357) no Hoare annotation was computed. [2020-08-21 19:04:55,155 INFO L268 CegarLoopResult]: For program point L61(lines 61 420) no Hoare annotation was computed. [2020-08-21 19:04:55,155 INFO L268 CegarLoopResult]: For program point L251(lines 251 327) no Hoare annotation was computed. [2020-08-21 19:04:55,155 INFO L268 CegarLoopResult]: For program point L185(lines 185 353) no Hoare annotation was computed. [2020-08-21 19:04:55,155 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-08-21 19:04:55,155 INFO L264 CegarLoopResult]: At program point L408(lines 102 409) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~0 0)) (= |old(~__return_375~0)| ~__return_375~0)) [2020-08-21 19:04:55,156 INFO L268 CegarLoopResult]: For program point L210(lines 210 344) no Hoare annotation was computed. [2020-08-21 19:04:55,157 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-08-21 19:04:55,159 INFO L268 CegarLoopResult]: For program point L45(lines 45 432) no Hoare annotation was computed. [2020-08-21 19:04:55,159 INFO L268 CegarLoopResult]: For program point L268(lines 268 320) no Hoare annotation was computed. [2020-08-21 19:04:55,159 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 294) no Hoare annotation was computed. [2020-08-21 19:04:55,159 INFO L268 CegarLoopResult]: For program point L202(lines 202 351) no Hoare annotation was computed. [2020-08-21 19:04:55,159 INFO L268 CegarLoopResult]: For program point L260(lines 260 326) no Hoare annotation was computed. [2020-08-21 19:04:55,159 INFO L268 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-08-21 19:04:55,159 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-08-21 19:04:55,160 INFO L268 CegarLoopResult]: For program point L153(lines 153 358) no Hoare annotation was computed. [2020-08-21 19:04:55,160 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2020-08-21 19:04:55,160 INFO L268 CegarLoopResult]: For program point L21(lines 21 436) no Hoare annotation was computed. [2020-08-21 19:04:55,160 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 437) no Hoare annotation was computed. [2020-08-21 19:04:55,160 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 282) no Hoare annotation was computed. [2020-08-21 19:04:55,160 INFO L268 CegarLoopResult]: For program point L294(line 294) no Hoare annotation was computed. [2020-08-21 19:04:55,160 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2020-08-21 19:04:55,160 INFO L268 CegarLoopResult]: For program point L63(lines 63 415) no Hoare annotation was computed. [2020-08-21 19:04:55,161 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 437) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2020-08-21 19:04:55,161 INFO L268 CegarLoopResult]: For program point L253(line 253) no Hoare annotation was computed. [2020-08-21 19:04:55,161 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-21 19:04:55,161 INFO L268 CegarLoopResult]: For program point L121(lines 121 401) no Hoare annotation was computed. [2020-08-21 19:04:55,161 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-08-21 19:04:55,161 INFO L268 CegarLoopResult]: For program point L270(line 270) no Hoare annotation was computed. [2020-08-21 19:04:55,162 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 212) no Hoare annotation was computed. [2020-08-21 19:04:55,162 INFO L268 CegarLoopResult]: For program point L39(lines 39 433) no Hoare annotation was computed. [2020-08-21 19:04:55,162 INFO L268 CegarLoopResult]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 372) no Hoare annotation was computed. [2020-08-21 19:04:55,162 INFO L268 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-08-21 19:04:55,162 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-08-21 19:04:55,162 INFO L268 CegarLoopResult]: For program point L370(lines 370 393) no Hoare annotation was computed. [2020-08-21 19:04:55,162 INFO L268 CegarLoopResult]: For program point L81(lines 81 412) no Hoare annotation was computed. [2020-08-21 19:04:55,162 INFO L268 CegarLoopResult]: For program point L304(lines 304 314) no Hoare annotation was computed. [2020-08-21 19:04:55,162 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 306) no Hoare annotation was computed. [2020-08-21 19:04:55,163 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 111) no Hoare annotation was computed. [2020-08-21 19:04:55,163 INFO L268 CegarLoopResult]: For program point L222(lines 222 342) no Hoare annotation was computed. [2020-08-21 19:04:55,163 INFO L268 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-08-21 19:04:55,163 INFO L268 CegarLoopResult]: For program point L57(lines 57 430) no Hoare annotation was computed. [2020-08-21 19:04:55,163 INFO L264 CegarLoopResult]: At program point L313(lines 228 342) the Hoare annotation is: (let ((.cse17 (+ main_~main__cp~0 1))) (let ((.cse4 (not (= main_~__VERIFIER_assert__cond~11 0))) (.cse9 (not (= main_~__VERIFIER_assert__cond~8 0))) (.cse11 (not (= main_~__VERIFIER_assert__cond~10 0))) (.cse0 (not (= main_~__VERIFIER_assert__cond~5 0))) (.cse1 (< 0 main_~main__scheme~0)) (.cse2 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse3 (not (= main_~__VERIFIER_assert__cond~2 0))) (.cse5 (= main_~main__c~0 0)) (.cse6 (= main_~__VERIFIER_assert__cond~3 1)) (.cse7 (not (= main_~__VERIFIER_assert__cond~4 0))) (.cse8 (= |old(~__return_375~0)| ~__return_375~0)) (.cse10 (<= .cse17 main_~main__urilen~0)) (.cse12 (= main_~__VERIFIER_assert__cond~9 1)) (.cse13 (not (= main_~__VERIFIER_assert__cond~6 0))) (.cse14 (not (= main_~__VERIFIER_assert__cond~7 0))) (.cse15 (<= 1 main_~main__cp~0)) (.cse16 (not (= main_~__VERIFIER_assert__cond~1 0)))) (or (and .cse0 .cse1 (<= (+ main_~main__c~0 2) main_~main__tokenlen~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse8 (<= 1 main_~main__c~0) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (not (= main_~__VERIFIER_assert__cond~15 0)) (not (= main_~__VERIFIER_assert__cond~13 0)) (not (= main_~__VERIFIER_assert__cond~14 0)) .cse15 (not (= main_~__VERIFIER_assert__cond~12 0)) .cse16) (and (< .cse17 main_~main__urilen~0) .cse0 .cse1 .cse2 .cse3 .cse5 .cse6 .cse7 .cse8 .cse10 .cse12 .cse13 .cse14 .cse15 (= main_~__VERIFIER_assert__cond~8 1) .cse16)))) [2020-08-21 19:04:55,164 INFO L268 CegarLoopResult]: For program point L280(lines 280 318) no Hoare annotation was computed. [2020-08-21 19:04:55,164 INFO L268 CegarLoopResult]: For program point L239(lines 239 329) no Hoare annotation was computed. [2020-08-21 19:04:55,164 INFO L268 CegarLoopResult]: For program point L173(lines 173 355) no Hoare annotation was computed. [2020-08-21 19:04:55,164 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 241) no Hoare annotation was computed. [2020-08-21 19:04:55,164 INFO L268 CegarLoopResult]: For program point L33(lines 33 434) no Hoare annotation was computed. [2020-08-21 19:04:55,164 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2020-08-21 19:04:55,164 INFO L268 CegarLoopResult]: For program point L372(line 372) no Hoare annotation was computed. [2020-08-21 19:04:55,164 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-08-21 19:04:55,165 INFO L268 CegarLoopResult]: For program point L306(line 306) no Hoare annotation was computed. [2020-08-21 19:04:55,165 INFO L268 CegarLoopResult]: For program point L141(lines 141 360) no Hoare annotation was computed. [2020-08-21 19:04:55,165 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 224) no Hoare annotation was computed. [2020-08-21 19:04:55,165 INFO L268 CegarLoopResult]: For program point L232(lines 232 336) no Hoare annotation was computed. [2020-08-21 19:04:55,165 INFO L268 CegarLoopResult]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2020-08-21 19:04:55,165 INFO L268 CegarLoopResult]: For program point L133(lines 133 395) no Hoare annotation was computed. [2020-08-21 19:04:55,165 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-08-21 19:04:55,165 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 143) no Hoare annotation was computed. [2020-08-21 19:04:55,165 INFO L268 CegarLoopResult]: For program point L59(lines 59 425) no Hoare annotation was computed. [2020-08-21 19:04:55,166 INFO L268 CegarLoopResult]: For program point L282(line 282) no Hoare annotation was computed. [2020-08-21 19:04:55,166 INFO L268 CegarLoopResult]: For program point L51(lines 51 431) no Hoare annotation was computed. [2020-08-21 19:04:55,166 INFO L268 CegarLoopResult]: For program point L241(line 241) no Hoare annotation was computed. [2020-08-21 19:04:55,166 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 270) no Hoare annotation was computed. [2020-08-21 19:04:55,167 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-21 19:04:55,167 INFO L268 CegarLoopResult]: For program point L109(lines 109 403) no Hoare annotation was computed. [2020-08-21 19:04:55,167 INFO L264 CegarLoopResult]: At program point L390(lines 127 401) the Hoare annotation is: (and (let ((.cse0 (< 0 main_~main__scheme~0)) (.cse1 (not (= main_~__VERIFIER_assert__cond~0 0))) (.cse2 (= main_~__VERIFIER_assert__cond~3 1)) (.cse3 (<= 1 main_~main__cp~0)) (.cse4 (not (= main_~__VERIFIER_assert__cond~1 0)))) (or (and .cse0 .cse1 .cse2 (= main_~__VERIFIER_assert__cond~2 1) .cse3 .cse4) (and .cse0 .cse1 (not (= main_~__VERIFIER_assert__cond~2 0)) .cse2 (not (= main_~__VERIFIER_assert__cond~16 0)) (not (= main_~__VERIFIER_assert__cond~17 0)) .cse3 .cse4))) (= |old(~__return_375~0)| ~__return_375~0) (<= (+ main_~main__cp~0 1) main_~main__urilen~0)) [2020-08-21 19:04:55,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 07:04:55 BoogieIcfgContainer [2020-08-21 19:04:55,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 19:04:55,229 INFO L168 Benchmark]: Toolchain (without parser) took 9890.19 ms. Allocated memory was 140.5 MB in the beginning and 324.5 MB in the end (delta: 184.0 MB). Free memory was 103.2 MB in the beginning and 166.4 MB in the end (delta: -63.3 MB). Peak memory consumption was 162.0 MB. Max. memory is 7.1 GB. [2020-08-21 19:04:55,229 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 19:04:55,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.31 ms. Allocated memory is still 140.5 MB. Free memory was 102.8 MB in the beginning and 89.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-08-21 19:04:55,233 INFO L168 Benchmark]: Boogie Preprocessor took 134.85 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 89.9 MB in the beginning and 180.7 MB in the end (delta: -90.8 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-08-21 19:04:55,233 INFO L168 Benchmark]: RCFGBuilder took 505.26 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 152.8 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-08-21 19:04:55,234 INFO L168 Benchmark]: TraceAbstraction took 8875.11 ms. Allocated memory was 203.4 MB in the beginning and 324.5 MB in the end (delta: 121.1 MB). Free memory was 152.2 MB in the beginning and 166.4 MB in the end (delta: -14.3 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2020-08-21 19:04:55,239 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 369.31 ms. Allocated memory is still 140.5 MB. Free memory was 102.8 MB in the beginning and 89.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.85 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 89.9 MB in the beginning and 180.7 MB in the end (delta: -90.8 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 505.26 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 152.8 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8875.11 ms. Allocated memory was 203.4 MB in the beginning and 324.5 MB in the end (delta: 121.1 MB). Free memory was 152.2 MB in the beginning and 166.4 MB in the end (delta: -14.3 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 83]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 306]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 372]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 187]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 212]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 282]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 224]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 241]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 294]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 270]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 143]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 253]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 384]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 111]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 155]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 123]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 95]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (((((((0 < main__scheme && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || (((((((0 < main__scheme && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0))) && \old(__return_375) == __return_375) && main__cp + 1 <= main__urilen - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: !(__VERIFIER_assert__cond == 0) && \old(__return_375) == __return_375 - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: ((((((((((((((((((!(__VERIFIER_assert__cond == 0) && 0 < main__scheme) && main__c + 2 <= main__tokenlen) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__c == 0) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || ((((((((((((((((((((!(__VERIFIER_assert__cond == 0) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && 1 <= main__c) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0))) || (((((((((((((((main__cp + 1 < main__urilen && !(__VERIFIER_assert__cond == 0)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__c == 0) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && main__cp + 1 <= main__urilen) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: ((main__cp < main__urilen && __VERIFIER_assert__cond == 1) && ((((((0 < main__scheme && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) || ((((0 < main__scheme && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)))) && \old(__return_375) == __return_375 - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: (((((((((((((((((((((!(__VERIFIER_assert__cond == 0) && __VERIFIER_assert__cond == 1) && 0 < main__scheme) && !(main__urilen == main__cp + 1)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && 1 <= main__c) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) || ((((((((((((((((((!(__VERIFIER_assert__cond == 0) && __VERIFIER_assert__cond == 1) && 0 < main__scheme) && main__c + 2 <= main__tokenlen) && !(main__urilen == main__cp + 1)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && main__c == 0) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && \old(__return_375) == __return_375) && !(__VERIFIER_assert__cond == 0)) && main__cp + 1 <= main__urilen) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(__VERIFIER_assert__cond == 0)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 91 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.3s, OverallIterations: 24, TraceHistogramMax: 2, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1392 SDtfs, 3840 SDslu, 353 SDs, 0 SdLazy, 2587 SolverSat, 194 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 265 GetRequests, 85 SyntacticMatches, 2 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 24 MinimizatonAttempts, 288 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 17 NumberOfFragments, 503 HoareAnnotationTreeSize, 9 FomulaSimplifications, 76237 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2678 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 801 NumberOfCodeBlocks, 801 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 777 ConstructedInterpolants, 0 QuantifiedInterpolants, 58141 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 21 PerfectInterpolantSequences, 13/19 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...