/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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 [2020-08-22 01:33:08,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 01:33:08,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 01:33:08,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 01:33:08,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 01:33:08,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 01:33:08,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 01:33:08,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 01:33:08,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 01:33:08,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 01:33:08,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 01:33:08,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 01:33:08,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 01:33:08,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 01:33:08,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 01:33:08,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 01:33:08,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 01:33:08,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 01:33:08,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 01:33:08,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 01:33:08,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 01:33:08,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 01:33:08,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 01:33:08,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 01:33:08,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 01:33:08,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 01:33:08,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 01:33:08,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 01:33:08,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 01:33:08,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 01:33:08,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 01:33:08,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 01:33:08,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 01:33:08,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 01:33:08,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 01:33:08,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 01:33:08,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 01:33:08,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 01:33:08,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 01:33:08,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 01:33:08,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 01:33:08,370 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 [2020-08-22 01:33:08,392 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 01:33:08,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 01:33:08,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 01:33:08,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 01:33:08,394 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 01:33:08,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 01:33:08,395 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 01:33:08,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 01:33:08,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 01:33:08,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 01:33:08,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 01:33:08,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 01:33:08,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 01:33:08,396 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 01:33:08,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 01:33:08,397 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 01:33:08,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 01:33:08,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 01:33:08,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 01:33:08,397 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 01:33:08,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 01:33:08,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 01:33:08,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 01:33:08,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 01:33:08,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 01:33:08,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 01:33:08,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 01:33:08,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 01:33:08,399 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 01:33:08,400 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=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-08-22 01:33:08,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 01:33:08,730 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 01:33:08,734 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 01:33:08,735 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 01:33:08,736 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 01:33:08,737 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-08-22 01:33:08,806 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cfe6a0a17/6cf12e7fa1bb484783eb2b48e38461e4/FLAG81ac94841 [2020-08-22 01:33:09,301 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 01:33:09,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-08-22 01:33:09,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cfe6a0a17/6cf12e7fa1bb484783eb2b48e38461e4/FLAG81ac94841 [2020-08-22 01:33:09,676 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cfe6a0a17/6cf12e7fa1bb484783eb2b48e38461e4 [2020-08-22 01:33:09,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 01:33:09,688 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 01:33:09,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 01:33:09,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 01:33:09,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 01:33:09,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:33:09" (1/1) ... [2020-08-22 01:33:09,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@539d990c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:33:09, skipping insertion in model container [2020-08-22 01:33:09,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 01:33:09" (1/1) ... [2020-08-22 01:33:09,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 01:33:09,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 01:33:09,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:33:10,002 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 01:33:10,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 01:33:10,174 INFO L208 MainTranslator]: Completed translation [2020-08-22 01:33:10,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:33:10 WrapperNode [2020-08-22 01:33:10,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 01:33:10,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 01:33:10,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 01:33:10,177 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 01:33:10,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:33:10" (1/1) ... [2020-08-22 01:33:10,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:33:10" (1/1) ... [2020-08-22 01:33:10,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:33:10" (1/1) ... [2020-08-22 01:33:10,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:33:10" (1/1) ... [2020-08-22 01:33:10,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:33:10" (1/1) ... [2020-08-22 01:33:10,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:33:10" (1/1) ... [2020-08-22 01:33:10,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:33:10" (1/1) ... [2020-08-22 01:33:10,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 01:33:10,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 01:33:10,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 01:33:10,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 01:33:10,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:33:10" (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 [2020-08-22 01:33:10,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 01:33:10,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 01:33:10,335 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 01:33:10,336 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 01:33:10,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 01:33:10,336 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 01:33:10,336 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 01:33:10,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 01:33:10,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 01:33:10,337 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 01:33:10,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 01:33:10,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 01:33:10,875 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 01:33:10,875 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 01:33:10,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:33:10 BoogieIcfgContainer [2020-08-22 01:33:10,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 01:33:10,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 01:33:10,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 01:33:10,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 01:33:10,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 01:33:09" (1/3) ... [2020-08-22 01:33:10,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df38f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:33:10, skipping insertion in model container [2020-08-22 01:33:10,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 01:33:10" (2/3) ... [2020-08-22 01:33:10,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df38f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 01:33:10, skipping insertion in model container [2020-08-22 01:33:10,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 01:33:10" (3/3) ... [2020-08-22 01:33:10,889 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-08-22 01:33:10,900 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 01:33:10,908 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-08-22 01:33:10,922 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-08-22 01:33:10,948 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 01:33:10,949 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 01:33:10,949 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 01:33:10,949 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 01:33:10,949 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 01:33:10,949 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 01:33:10,950 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 01:33:10,950 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 01:33:10,973 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-08-22 01:33:10,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-22 01:33:10,979 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:10,980 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 01:33:10,980 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]=== [2020-08-22 01:33:10,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:10,987 INFO L82 PathProgramCache]: Analyzing trace with hash -2019463306, now seen corresponding path program 1 times [2020-08-22 01:33:10,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:10,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79093457] [2020-08-22 01:33:10,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:11,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:11,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:11,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79093457] [2020-08-22 01:33:11,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:11,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 01:33:11,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079037801] [2020-08-22 01:33:11,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 01:33:11,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:11,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 01:33:11,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 01:33:11,254 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2020-08-22 01:33:11,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:11,394 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2020-08-22 01:33:11,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 01:33:11,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-08-22 01:33:11,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:11,408 INFO L225 Difference]: With dead ends: 93 [2020-08-22 01:33:11,408 INFO L226 Difference]: Without dead ends: 80 [2020-08-22 01:33:11,412 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 [2020-08-22 01:33:11,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-08-22 01:33:11,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-08-22 01:33:11,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-08-22 01:33:11,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2020-08-22 01:33:11,464 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 19 [2020-08-22 01:33:11,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:11,464 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2020-08-22 01:33:11,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 01:33:11,465 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2020-08-22 01:33:11,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-22 01:33:11,466 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:11,466 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] [2020-08-22 01:33:11,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 01:33:11,467 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]=== [2020-08-22 01:33:11,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:11,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1821150056, now seen corresponding path program 1 times [2020-08-22 01:33:11,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:11,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752904996] [2020-08-22 01:33:11,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:11,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:11,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:11,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752904996] [2020-08-22 01:33:11,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:11,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 01:33:11,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873718902] [2020-08-22 01:33:11,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 01:33:11,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:11,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 01:33:11,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-22 01:33:11,598 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand 7 states. [2020-08-22 01:33:11,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:11,793 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2020-08-22 01:33:11,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 01:33:11,794 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-08-22 01:33:11,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:11,796 INFO L225 Difference]: With dead ends: 80 [2020-08-22 01:33:11,796 INFO L226 Difference]: Without dead ends: 78 [2020-08-22 01:33:11,797 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 [2020-08-22 01:33:11,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-08-22 01:33:11,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-08-22 01:33:11,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-08-22 01:33:11,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2020-08-22 01:33:11,811 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 20 [2020-08-22 01:33:11,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:11,812 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2020-08-22 01:33:11,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 01:33:11,812 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2020-08-22 01:33:11,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-08-22 01:33:11,813 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:11,813 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] [2020-08-22 01:33:11,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 01:33:11,814 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]=== [2020-08-22 01:33:11,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:11,815 INFO L82 PathProgramCache]: Analyzing trace with hash 2073610827, now seen corresponding path program 1 times [2020-08-22 01:33:11,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:11,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953675274] [2020-08-22 01:33:11,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:11,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:11,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:11,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1953675274] [2020-08-22 01:33:11,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:11,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 01:33:11,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003885145] [2020-08-22 01:33:11,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 01:33:11,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:11,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 01:33:11,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 01:33:11,950 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand 5 states. [2020-08-22 01:33:12,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:12,143 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2020-08-22 01:33:12,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 01:33:12,143 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-08-22 01:33:12,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:12,145 INFO L225 Difference]: With dead ends: 101 [2020-08-22 01:33:12,145 INFO L226 Difference]: Without dead ends: 99 [2020-08-22 01:33:12,146 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 [2020-08-22 01:33:12,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-08-22 01:33:12,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 76. [2020-08-22 01:33:12,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-08-22 01:33:12,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2020-08-22 01:33:12,156 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 22 [2020-08-22 01:33:12,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:12,157 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2020-08-22 01:33:12,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 01:33:12,157 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2020-08-22 01:33:12,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-22 01:33:12,158 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:12,158 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] [2020-08-22 01:33:12,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 01:33:12,159 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]=== [2020-08-22 01:33:12,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:12,159 INFO L82 PathProgramCache]: Analyzing trace with hash -142570686, now seen corresponding path program 1 times [2020-08-22 01:33:12,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:12,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970037599] [2020-08-22 01:33:12,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:12,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:12,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:12,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970037599] [2020-08-22 01:33:12,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:12,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:33:12,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100190102] [2020-08-22 01:33:12,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:12,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:12,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:12,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:12,232 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 6 states. [2020-08-22 01:33:12,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:12,349 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-08-22 01:33:12,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 01:33:12,349 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-08-22 01:33:12,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:12,351 INFO L225 Difference]: With dead ends: 76 [2020-08-22 01:33:12,351 INFO L226 Difference]: Without dead ends: 74 [2020-08-22 01:33:12,352 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 [2020-08-22 01:33:12,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-08-22 01:33:12,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-08-22 01:33:12,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-08-22 01:33:12,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2020-08-22 01:33:12,360 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 23 [2020-08-22 01:33:12,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:12,360 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2020-08-22 01:33:12,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:12,360 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2020-08-22 01:33:12,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-22 01:33:12,361 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:12,361 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] [2020-08-22 01:33:12,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 01:33:12,362 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]=== [2020-08-22 01:33:12,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:12,363 INFO L82 PathProgramCache]: Analyzing trace with hash 402497124, now seen corresponding path program 1 times [2020-08-22 01:33:12,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:12,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640475025] [2020-08-22 01:33:12,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:12,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:12,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:12,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640475025] [2020-08-22 01:33:12,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:12,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:33:12,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214190824] [2020-08-22 01:33:12,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:12,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:12,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:12,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:12,453 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 6 states. [2020-08-22 01:33:12,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:12,898 INFO L93 Difference]: Finished difference Result 141 states and 147 transitions. [2020-08-22 01:33:12,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 01:33:12,899 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-08-22 01:33:12,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:12,901 INFO L225 Difference]: With dead ends: 141 [2020-08-22 01:33:12,901 INFO L226 Difference]: Without dead ends: 139 [2020-08-22 01:33:12,902 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 [2020-08-22 01:33:12,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-08-22 01:33:12,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 77. [2020-08-22 01:33:12,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-08-22 01:33:12,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-08-22 01:33:12,913 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 26 [2020-08-22 01:33:12,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:12,914 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-08-22 01:33:12,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:12,914 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-08-22 01:33:12,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-22 01:33:12,915 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:12,915 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] [2020-08-22 01:33:12,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 01:33:12,916 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]=== [2020-08-22 01:33:12,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:12,917 INFO L82 PathProgramCache]: Analyzing trace with hash 406230933, now seen corresponding path program 1 times [2020-08-22 01:33:12,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:12,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875403752] [2020-08-22 01:33:12,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:13,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:13,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:13,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875403752] [2020-08-22 01:33:13,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:13,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:33:13,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772023211] [2020-08-22 01:33:13,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:13,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:13,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:13,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:13,018 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 6 states. [2020-08-22 01:33:13,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:13,343 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2020-08-22 01:33:13,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 01:33:13,344 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-08-22 01:33:13,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:13,346 INFO L225 Difference]: With dead ends: 108 [2020-08-22 01:33:13,346 INFO L226 Difference]: Without dead ends: 106 [2020-08-22 01:33:13,347 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 [2020-08-22 01:33:13,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-08-22 01:33:13,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 79. [2020-08-22 01:33:13,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-08-22 01:33:13,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-08-22 01:33:13,364 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 26 [2020-08-22 01:33:13,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:13,365 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-08-22 01:33:13,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:13,365 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-08-22 01:33:13,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-22 01:33:13,366 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:13,366 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] [2020-08-22 01:33:13,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 01:33:13,368 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]=== [2020-08-22 01:33:13,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:13,369 INFO L82 PathProgramCache]: Analyzing trace with hash -407487796, now seen corresponding path program 1 times [2020-08-22 01:33:13,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:13,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690090629] [2020-08-22 01:33:13,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:13,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:13,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:13,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690090629] [2020-08-22 01:33:13,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:13,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:33:13,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576611900] [2020-08-22 01:33:13,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:13,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:13,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:13,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:13,493 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 6 states. [2020-08-22 01:33:13,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:13,711 INFO L93 Difference]: Finished difference Result 121 states and 127 transitions. [2020-08-22 01:33:13,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 01:33:13,712 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-08-22 01:33:13,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:13,713 INFO L225 Difference]: With dead ends: 121 [2020-08-22 01:33:13,713 INFO L226 Difference]: Without dead ends: 119 [2020-08-22 01:33:13,714 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 [2020-08-22 01:33:13,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-08-22 01:33:13,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2020-08-22 01:33:13,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-08-22 01:33:13,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-08-22 01:33:13,722 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 27 [2020-08-22 01:33:13,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:13,723 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-08-22 01:33:13,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:13,723 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-08-22 01:33:13,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-22 01:33:13,724 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:13,724 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] [2020-08-22 01:33:13,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 01:33:13,725 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]=== [2020-08-22 01:33:13,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:13,725 INFO L82 PathProgramCache]: Analyzing trace with hash -291739827, now seen corresponding path program 1 times [2020-08-22 01:33:13,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:13,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511690767] [2020-08-22 01:33:13,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:13,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:13,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:13,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [511690767] [2020-08-22 01:33:13,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:13,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:33:13,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673334137] [2020-08-22 01:33:13,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:13,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:13,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:13,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:13,801 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 6 states. [2020-08-22 01:33:13,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:13,980 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-08-22 01:33:13,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 01:33:13,981 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-08-22 01:33:13,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:13,982 INFO L225 Difference]: With dead ends: 77 [2020-08-22 01:33:13,982 INFO L226 Difference]: Without dead ends: 75 [2020-08-22 01:33:13,983 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 [2020-08-22 01:33:13,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-08-22 01:33:14,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-08-22 01:33:14,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-08-22 01:33:14,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2020-08-22 01:33:14,008 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 27 [2020-08-22 01:33:14,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:14,009 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2020-08-22 01:33:14,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:14,009 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2020-08-22 01:33:14,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-08-22 01:33:14,015 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:14,015 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] [2020-08-22 01:33:14,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 01:33:14,015 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]=== [2020-08-22 01:33:14,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:14,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1188998893, now seen corresponding path program 1 times [2020-08-22 01:33:14,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:14,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193151483] [2020-08-22 01:33:14,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:14,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:14,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:14,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193151483] [2020-08-22 01:33:14,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:14,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 01:33:14,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919920498] [2020-08-22 01:33:14,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 01:33:14,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:14,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 01:33:14,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 01:33:14,088 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 4 states. [2020-08-22 01:33:14,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:14,220 INFO L93 Difference]: Finished difference Result 115 states and 121 transitions. [2020-08-22 01:33:14,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 01:33:14,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-08-22 01:33:14,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:14,222 INFO L225 Difference]: With dead ends: 115 [2020-08-22 01:33:14,222 INFO L226 Difference]: Without dead ends: 75 [2020-08-22 01:33:14,223 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 [2020-08-22 01:33:14,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-08-22 01:33:14,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-08-22 01:33:14,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-08-22 01:33:14,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2020-08-22 01:33:14,229 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 29 [2020-08-22 01:33:14,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:14,229 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2020-08-22 01:33:14,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 01:33:14,229 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2020-08-22 01:33:14,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-22 01:33:14,230 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:14,230 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] [2020-08-22 01:33:14,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 01:33:14,231 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]=== [2020-08-22 01:33:14,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:14,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1640998784, now seen corresponding path program 1 times [2020-08-22 01:33:14,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:14,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523628859] [2020-08-22 01:33:14,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:14,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:14,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:14,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523628859] [2020-08-22 01:33:14,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:14,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:33:14,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303960274] [2020-08-22 01:33:14,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:14,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:14,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:14,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:14,353 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand 6 states. [2020-08-22 01:33:14,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:14,502 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-08-22 01:33:14,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 01:33:14,502 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-08-22 01:33:14,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:14,503 INFO L225 Difference]: With dead ends: 76 [2020-08-22 01:33:14,503 INFO L226 Difference]: Without dead ends: 74 [2020-08-22 01:33:14,504 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 [2020-08-22 01:33:14,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-08-22 01:33:14,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2020-08-22 01:33:14,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-08-22 01:33:14,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2020-08-22 01:33:14,510 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 30 [2020-08-22 01:33:14,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:14,510 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2020-08-22 01:33:14,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:14,510 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2020-08-22 01:33:14,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-22 01:33:14,511 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:14,511 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] [2020-08-22 01:33:14,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 01:33:14,512 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]=== [2020-08-22 01:33:14,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:14,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1892106755, now seen corresponding path program 1 times [2020-08-22 01:33:14,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:14,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776881410] [2020-08-22 01:33:14,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:14,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:14,575 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 01:33:14,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776881410] [2020-08-22 01:33:14,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 01:33:14,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-22 01:33:14,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600692708] [2020-08-22 01:33:14,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:14,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:14,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:14,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:14,577 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 6 states. [2020-08-22 01:33:14,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:14,776 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2020-08-22 01:33:14,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 01:33:14,777 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-08-22 01:33:14,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:14,778 INFO L225 Difference]: With dead ends: 111 [2020-08-22 01:33:14,778 INFO L226 Difference]: Without dead ends: 109 [2020-08-22 01:33:14,779 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 [2020-08-22 01:33:14,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-08-22 01:33:14,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 70. [2020-08-22 01:33:14,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-08-22 01:33:14,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2020-08-22 01:33:14,785 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 30 [2020-08-22 01:33:14,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:14,785 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2020-08-22 01:33:14,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:14,785 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2020-08-22 01:33:14,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-22 01:33:14,786 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:14,786 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] [2020-08-22 01:33:14,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 01:33:14,787 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]=== [2020-08-22 01:33:14,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:14,787 INFO L82 PathProgramCache]: Analyzing trace with hash 668648404, now seen corresponding path program 1 times [2020-08-22 01:33:14,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:14,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503226583] [2020-08-22 01:33:14,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:14,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:14,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:14,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1503226583] [2020-08-22 01:33:14,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:14,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:33:14,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26962831] [2020-08-22 01:33:14,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:14,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:14,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:14,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:14,861 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand 6 states. [2020-08-22 01:33:14,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:14,967 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-08-22 01:33:14,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 01:33:14,967 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-08-22 01:33:14,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:14,968 INFO L225 Difference]: With dead ends: 70 [2020-08-22 01:33:14,968 INFO L226 Difference]: Without dead ends: 68 [2020-08-22 01:33:14,971 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 [2020-08-22 01:33:14,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-22 01:33:14,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-08-22 01:33:14,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-08-22 01:33:14,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2020-08-22 01:33:14,977 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 31 [2020-08-22 01:33:14,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:14,977 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2020-08-22 01:33:14,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:14,978 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2020-08-22 01:33:14,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-22 01:33:14,978 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:14,979 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] [2020-08-22 01:33:14,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 01:33:14,979 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]=== [2020-08-22 01:33:14,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:14,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1470784207, now seen corresponding path program 1 times [2020-08-22 01:33:14,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:14,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080951721] [2020-08-22 01:33:14,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:15,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:15,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 01:33:15,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080951721] [2020-08-22 01:33:15,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 01:33:15,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-22 01:33:15,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669375774] [2020-08-22 01:33:15,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:15,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:15,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:15,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:15,055 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 6 states. [2020-08-22 01:33:15,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:15,175 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2020-08-22 01:33:15,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 01:33:15,176 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-08-22 01:33:15,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:15,177 INFO L225 Difference]: With dead ends: 69 [2020-08-22 01:33:15,177 INFO L226 Difference]: Without dead ends: 67 [2020-08-22 01:33:15,178 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 [2020-08-22 01:33:15,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-08-22 01:33:15,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 62. [2020-08-22 01:33:15,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-08-22 01:33:15,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2020-08-22 01:33:15,183 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 31 [2020-08-22 01:33:15,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:15,183 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2020-08-22 01:33:15,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:15,184 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2020-08-22 01:33:15,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-08-22 01:33:15,184 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:15,185 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] [2020-08-22 01:33:15,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-22 01:33:15,185 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]=== [2020-08-22 01:33:15,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:15,186 INFO L82 PathProgramCache]: Analyzing trace with hash -350608983, now seen corresponding path program 1 times [2020-08-22 01:33:15,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:15,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798828024] [2020-08-22 01:33:15,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:15,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:15,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:15,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798828024] [2020-08-22 01:33:15,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:15,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:33:15,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998826118] [2020-08-22 01:33:15,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:15,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:15,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:15,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:15,253 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand 6 states. [2020-08-22 01:33:15,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:15,375 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2020-08-22 01:33:15,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 01:33:15,376 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-08-22 01:33:15,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:15,376 INFO L225 Difference]: With dead ends: 63 [2020-08-22 01:33:15,377 INFO L226 Difference]: Without dead ends: 61 [2020-08-22 01:33:15,377 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 [2020-08-22 01:33:15,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-08-22 01:33:15,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2020-08-22 01:33:15,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-08-22 01:33:15,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2020-08-22 01:33:15,382 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 34 [2020-08-22 01:33:15,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:15,382 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2020-08-22 01:33:15,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:15,382 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2020-08-22 01:33:15,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-08-22 01:33:15,383 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:15,383 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] [2020-08-22 01:33:15,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-22 01:33:15,383 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]=== [2020-08-22 01:33:15,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:15,384 INFO L82 PathProgramCache]: Analyzing trace with hash 2016026591, now seen corresponding path program 1 times [2020-08-22 01:33:15,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:15,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056074612] [2020-08-22 01:33:15,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:15,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:15,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:15,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056074612] [2020-08-22 01:33:15,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:15,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 01:33:15,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654812275] [2020-08-22 01:33:15,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 01:33:15,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:15,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 01:33:15,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-22 01:33:15,437 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand 7 states. [2020-08-22 01:33:15,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:15,584 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2020-08-22 01:33:15,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 01:33:15,584 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-08-22 01:33:15,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:15,585 INFO L225 Difference]: With dead ends: 71 [2020-08-22 01:33:15,585 INFO L226 Difference]: Without dead ends: 69 [2020-08-22 01:33:15,586 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 [2020-08-22 01:33:15,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-08-22 01:33:15,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 58. [2020-08-22 01:33:15,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-08-22 01:33:15,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2020-08-22 01:33:15,590 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 35 [2020-08-22 01:33:15,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:15,591 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2020-08-22 01:33:15,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 01:33:15,591 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-08-22 01:33:15,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-08-22 01:33:15,591 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:15,592 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] [2020-08-22 01:33:15,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-22 01:33:15,592 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]=== [2020-08-22 01:33:15,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:15,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1371399406, now seen corresponding path program 1 times [2020-08-22 01:33:15,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:15,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097950380] [2020-08-22 01:33:15,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:15,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:15,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:15,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097950380] [2020-08-22 01:33:15,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:15,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:33:15,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195489127] [2020-08-22 01:33:15,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:15,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:15,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:15,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:15,648 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 6 states. [2020-08-22 01:33:15,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:15,885 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2020-08-22 01:33:15,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 01:33:15,886 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-08-22 01:33:15,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:15,887 INFO L225 Difference]: With dead ends: 91 [2020-08-22 01:33:15,887 INFO L226 Difference]: Without dead ends: 89 [2020-08-22 01:33:15,888 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 [2020-08-22 01:33:15,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-08-22 01:33:15,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 61. [2020-08-22 01:33:15,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-08-22 01:33:15,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2020-08-22 01:33:15,894 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 38 [2020-08-22 01:33:15,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:15,895 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2020-08-22 01:33:15,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:15,895 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2020-08-22 01:33:15,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-08-22 01:33:15,896 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:15,896 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] [2020-08-22 01:33:15,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-22 01:33:15,896 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]=== [2020-08-22 01:33:15,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:15,897 INFO L82 PathProgramCache]: Analyzing trace with hash 436294569, now seen corresponding path program 1 times [2020-08-22 01:33:15,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:15,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109181540] [2020-08-22 01:33:15,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:15,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:15,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:15,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109181540] [2020-08-22 01:33:15,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:15,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:33:15,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884318293] [2020-08-22 01:33:15,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:15,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:15,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:15,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:15,956 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand 6 states. [2020-08-22 01:33:16,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:16,145 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2020-08-22 01:33:16,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 01:33:16,145 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-08-22 01:33:16,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:16,146 INFO L225 Difference]: With dead ends: 61 [2020-08-22 01:33:16,146 INFO L226 Difference]: Without dead ends: 59 [2020-08-22 01:33:16,147 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 [2020-08-22 01:33:16,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-08-22 01:33:16,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-08-22 01:33:16,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-08-22 01:33:16,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-08-22 01:33:16,151 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 39 [2020-08-22 01:33:16,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:16,152 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-08-22 01:33:16,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:16,152 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-08-22 01:33:16,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-08-22 01:33:16,153 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:16,153 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] [2020-08-22 01:33:16,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-22 01:33:16,153 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]=== [2020-08-22 01:33:16,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:16,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1627614740, now seen corresponding path program 1 times [2020-08-22 01:33:16,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:16,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300499497] [2020-08-22 01:33:16,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:16,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:16,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:16,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300499497] [2020-08-22 01:33:16,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:16,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:33:16,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006185099] [2020-08-22 01:33:16,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:16,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:16,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:16,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:16,209 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 6 states. [2020-08-22 01:33:16,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:16,346 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-08-22 01:33:16,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 01:33:16,347 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-08-22 01:33:16,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:16,348 INFO L225 Difference]: With dead ends: 70 [2020-08-22 01:33:16,348 INFO L226 Difference]: Without dead ends: 68 [2020-08-22 01:33:16,349 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 [2020-08-22 01:33:16,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-22 01:33:16,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-08-22 01:33:16,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-08-22 01:33:16,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-08-22 01:33:16,354 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 41 [2020-08-22 01:33:16,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:16,355 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-08-22 01:33:16,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:16,355 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-08-22 01:33:16,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-08-22 01:33:16,356 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:16,356 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] [2020-08-22 01:33:16,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-08-22 01:33:16,356 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]=== [2020-08-22 01:33:16,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:16,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1083553822, now seen corresponding path program 1 times [2020-08-22 01:33:16,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:16,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614719937] [2020-08-22 01:33:16,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:16,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:16,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:16,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [614719937] [2020-08-22 01:33:16,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:16,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:33:16,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262348766] [2020-08-22 01:33:16,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:16,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:16,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:16,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:16,406 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand 6 states. [2020-08-22 01:33:16,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:16,554 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2020-08-22 01:33:16,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 01:33:16,554 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-08-22 01:33:16,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:16,555 INFO L225 Difference]: With dead ends: 68 [2020-08-22 01:33:16,556 INFO L226 Difference]: Without dead ends: 66 [2020-08-22 01:33:16,556 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 [2020-08-22 01:33:16,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-08-22 01:33:16,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2020-08-22 01:33:16,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-08-22 01:33:16,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2020-08-22 01:33:16,562 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 42 [2020-08-22 01:33:16,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:16,562 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2020-08-22 01:33:16,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:16,562 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2020-08-22 01:33:16,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-08-22 01:33:16,563 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:16,563 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] [2020-08-22 01:33:16,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-08-22 01:33:16,563 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]=== [2020-08-22 01:33:16,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:16,564 INFO L82 PathProgramCache]: Analyzing trace with hash -769566670, now seen corresponding path program 1 times [2020-08-22 01:33:16,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:16,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102302540] [2020-08-22 01:33:16,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:16,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:16,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:16,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102302540] [2020-08-22 01:33:16,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:16,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:33:16,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472222104] [2020-08-22 01:33:16,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:16,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:16,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:16,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:16,645 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 6 states. [2020-08-22 01:33:16,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:16,926 INFO L93 Difference]: Finished difference Result 90 states and 95 transitions. [2020-08-22 01:33:16,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 01:33:16,927 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-08-22 01:33:16,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:16,928 INFO L225 Difference]: With dead ends: 90 [2020-08-22 01:33:16,928 INFO L226 Difference]: Without dead ends: 88 [2020-08-22 01:33:16,929 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 [2020-08-22 01:33:16,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-08-22 01:33:16,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 69. [2020-08-22 01:33:16,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-08-22 01:33:16,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2020-08-22 01:33:16,934 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 43 [2020-08-22 01:33:16,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:16,935 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2020-08-22 01:33:16,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:16,935 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2020-08-22 01:33:16,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-08-22 01:33:16,935 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:16,935 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] [2020-08-22 01:33:16,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-08-22 01:33:16,936 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]=== [2020-08-22 01:33:16,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:16,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1913240228, now seen corresponding path program 1 times [2020-08-22 01:33:16,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:16,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47227085] [2020-08-22 01:33:16,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:17,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:17,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:17,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47227085] [2020-08-22 01:33:17,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:17,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:33:17,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722663798] [2020-08-22 01:33:17,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:17,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:17,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:17,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:17,018 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand 6 states. [2020-08-22 01:33:17,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:17,205 INFO L93 Difference]: Finished difference Result 75 states and 79 transitions. [2020-08-22 01:33:17,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 01:33:17,206 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-08-22 01:33:17,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:17,207 INFO L225 Difference]: With dead ends: 75 [2020-08-22 01:33:17,207 INFO L226 Difference]: Without dead ends: 73 [2020-08-22 01:33:17,207 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 [2020-08-22 01:33:17,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-08-22 01:33:17,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 67. [2020-08-22 01:33:17,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-08-22 01:33:17,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2020-08-22 01:33:17,213 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 44 [2020-08-22 01:33:17,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:17,214 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2020-08-22 01:33:17,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:17,214 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2020-08-22 01:33:17,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-08-22 01:33:17,215 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:17,215 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] [2020-08-22 01:33:17,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-08-22 01:33:17,215 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]=== [2020-08-22 01:33:17,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:17,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1562566919, now seen corresponding path program 1 times [2020-08-22 01:33:17,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:17,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471430370] [2020-08-22 01:33:17,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:17,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:17,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 01:33:17,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471430370] [2020-08-22 01:33:17,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 01:33:17,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-22 01:33:17,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669780592] [2020-08-22 01:33:17,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:17,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:17,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:17,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:17,308 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand 6 states. [2020-08-22 01:33:17,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:17,448 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2020-08-22 01:33:17,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 01:33:17,451 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-08-22 01:33:17,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:17,452 INFO L225 Difference]: With dead ends: 67 [2020-08-22 01:33:17,452 INFO L226 Difference]: Without dead ends: 65 [2020-08-22 01:33:17,453 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 [2020-08-22 01:33:17,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-08-22 01:33:17,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-08-22 01:33:17,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-08-22 01:33:17,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2020-08-22 01:33:17,460 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 44 [2020-08-22 01:33:17,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:17,460 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2020-08-22 01:33:17,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:17,461 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2020-08-22 01:33:17,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-08-22 01:33:17,461 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:17,462 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] [2020-08-22 01:33:17,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-08-22 01:33:17,462 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]=== [2020-08-22 01:33:17,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:17,464 INFO L82 PathProgramCache]: Analyzing trace with hash 790604971, now seen corresponding path program 1 times [2020-08-22 01:33:17,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:17,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1981495760] [2020-08-22 01:33:17,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:17,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:17,535 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-22 01:33:17,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1981495760] [2020-08-22 01:33:17,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:17,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 01:33:17,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101943118] [2020-08-22 01:33:17,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 01:33:17,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:17,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 01:33:17,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 01:33:17,544 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 6 states. [2020-08-22 01:33:17,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:17,820 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-08-22 01:33:17,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 01:33:17,820 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-08-22 01:33:17,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:17,821 INFO L225 Difference]: With dead ends: 77 [2020-08-22 01:33:17,821 INFO L226 Difference]: Without dead ends: 75 [2020-08-22 01:33:17,822 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 [2020-08-22 01:33:17,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-08-22 01:33:17,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 55. [2020-08-22 01:33:17,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-08-22 01:33:17,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2020-08-22 01:33:17,828 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 49 [2020-08-22 01:33:17,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:17,829 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2020-08-22 01:33:17,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 01:33:17,829 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2020-08-22 01:33:17,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-22 01:33:17,829 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 01:33:17,830 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] [2020-08-22 01:33:17,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-08-22 01:33:17,830 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]=== [2020-08-22 01:33:17,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 01:33:17,830 INFO L82 PathProgramCache]: Analyzing trace with hash 705971477, now seen corresponding path program 1 times [2020-08-22 01:33:17,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 01:33:17,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2015194117] [2020-08-22 01:33:17,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 01:33:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:17,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 01:33:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 01:33:17,880 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-22 01:33:17,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2015194117] [2020-08-22 01:33:17,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 01:33:17,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 01:33:17,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937913303] [2020-08-22 01:33:17,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 01:33:17,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 01:33:17,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 01:33:17,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 01:33:17,884 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 5 states. [2020-08-22 01:33:18,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 01:33:18,040 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2020-08-22 01:33:18,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 01:33:18,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-08-22 01:33:18,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 01:33:18,041 INFO L225 Difference]: With dead ends: 60 [2020-08-22 01:33:18,041 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 01:33:18,042 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 [2020-08-22 01:33:18,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 01:33:18,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 01:33:18,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 01:33:18,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 01:33:18,043 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-08-22 01:33:18,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 01:33:18,043 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 01:33:18,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 01:33:18,043 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 01:33:18,043 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 01:33:18,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-08-22 01:33:18,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 01:33:18,475 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 35 [2020-08-22 01:33:18,773 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2020-08-22 01:33:18,975 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2020-08-22 01:33:19,258 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2020-08-22 01:33:19,262 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 01:33:19,262 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)|)) [2020-08-22 01:33:19,262 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 01:33:19,262 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 01:33:19,262 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 01:33:19,262 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 01:33:19,262 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 01:33:19,262 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-08-22 01:33:19,263 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-08-22 01:33:19,263 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-08-22 01:33:19,263 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-08-22 01:33:19,263 INFO L268 CegarLoopResult]: For program point L192(lines 192 352) no Hoare annotation was computed. [2020-08-22 01:33:19,263 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2020-08-22 01:33:19,263 INFO L268 CegarLoopResult]: For program point L382(lines 382 391) no Hoare annotation was computed. [2020-08-22 01:33:19,263 INFO L268 CegarLoopResult]: For program point L93(lines 93 410) no Hoare annotation was computed. [2020-08-22 01:33:19,263 INFO L268 CegarLoopResult]: For program point L27(lines 27 435) no Hoare annotation was computed. [2020-08-22 01:33:19,264 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 437) no Hoare annotation was computed. [2020-08-22 01:33:19,264 INFO L268 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-08-22 01:33:19,264 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)) [2020-08-22 01:33:19,264 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 253) no Hoare annotation was computed. [2020-08-22 01:33:19,264 INFO L268 CegarLoopResult]: For program point L102(lines 102 409) no Hoare annotation was computed. [2020-08-22 01:33:19,264 INFO L268 CegarLoopResult]: For program point L69(lines 69 414) no Hoare annotation was computed. [2020-08-22 01:33:19,265 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)))) [2020-08-22 01:33:19,265 INFO L268 CegarLoopResult]: For program point L292(lines 292 316) no Hoare annotation was computed. [2020-08-22 01:33:19,265 INFO L268 CegarLoopResult]: For program point L160(lines 160 357) no Hoare annotation was computed. [2020-08-22 01:33:19,265 INFO L268 CegarLoopResult]: For program point L61(lines 61 420) no Hoare annotation was computed. [2020-08-22 01:33:19,265 INFO L268 CegarLoopResult]: For program point L251(lines 251 327) no Hoare annotation was computed. [2020-08-22 01:33:19,265 INFO L268 CegarLoopResult]: For program point L185(lines 185 353) no Hoare annotation was computed. [2020-08-22 01:33:19,266 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-08-22 01:33:19,266 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)) [2020-08-22 01:33:19,266 INFO L268 CegarLoopResult]: For program point L210(lines 210 344) no Hoare annotation was computed. [2020-08-22 01:33:19,266 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-08-22 01:33:19,266 INFO L268 CegarLoopResult]: For program point L45(lines 45 432) no Hoare annotation was computed. [2020-08-22 01:33:19,266 INFO L268 CegarLoopResult]: For program point L268(lines 268 320) no Hoare annotation was computed. [2020-08-22 01:33:19,266 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 294) no Hoare annotation was computed. [2020-08-22 01:33:19,266 INFO L268 CegarLoopResult]: For program point L202(lines 202 351) no Hoare annotation was computed. [2020-08-22 01:33:19,267 INFO L268 CegarLoopResult]: For program point L260(lines 260 326) no Hoare annotation was computed. [2020-08-22 01:33:19,267 INFO L268 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-08-22 01:33:19,267 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-08-22 01:33:19,267 INFO L268 CegarLoopResult]: For program point L153(lines 153 358) no Hoare annotation was computed. [2020-08-22 01:33:19,267 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2020-08-22 01:33:19,267 INFO L268 CegarLoopResult]: For program point L21(lines 21 436) no Hoare annotation was computed. [2020-08-22 01:33:19,267 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 437) no Hoare annotation was computed. [2020-08-22 01:33:19,267 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 282) no Hoare annotation was computed. [2020-08-22 01:33:19,268 INFO L268 CegarLoopResult]: For program point L294(line 294) no Hoare annotation was computed. [2020-08-22 01:33:19,268 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2020-08-22 01:33:19,268 INFO L268 CegarLoopResult]: For program point L63(lines 63 415) no Hoare annotation was computed. [2020-08-22 01:33:19,268 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 437) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2020-08-22 01:33:19,268 INFO L268 CegarLoopResult]: For program point L253(line 253) no Hoare annotation was computed. [2020-08-22 01:33:19,268 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-22 01:33:19,268 INFO L268 CegarLoopResult]: For program point L121(lines 121 401) no Hoare annotation was computed. [2020-08-22 01:33:19,268 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-08-22 01:33:19,269 INFO L268 CegarLoopResult]: For program point L270(line 270) no Hoare annotation was computed. [2020-08-22 01:33:19,269 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 212) no Hoare annotation was computed. [2020-08-22 01:33:19,269 INFO L268 CegarLoopResult]: For program point L39(lines 39 433) no Hoare annotation was computed. [2020-08-22 01:33:19,269 INFO L268 CegarLoopResult]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 372) no Hoare annotation was computed. [2020-08-22 01:33:19,269 INFO L268 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-08-22 01:33:19,269 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-08-22 01:33:19,269 INFO L268 CegarLoopResult]: For program point L370(lines 370 393) no Hoare annotation was computed. [2020-08-22 01:33:19,269 INFO L268 CegarLoopResult]: For program point L81(lines 81 412) no Hoare annotation was computed. [2020-08-22 01:33:19,269 INFO L268 CegarLoopResult]: For program point L304(lines 304 314) no Hoare annotation was computed. [2020-08-22 01:33:19,269 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 306) no Hoare annotation was computed. [2020-08-22 01:33:19,270 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 111) no Hoare annotation was computed. [2020-08-22 01:33:19,270 INFO L268 CegarLoopResult]: For program point L222(lines 222 342) no Hoare annotation was computed. [2020-08-22 01:33:19,270 INFO L268 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-08-22 01:33:19,270 INFO L268 CegarLoopResult]: For program point L57(lines 57 430) no Hoare annotation was computed. [2020-08-22 01:33:19,270 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)))) [2020-08-22 01:33:19,270 INFO L268 CegarLoopResult]: For program point L280(lines 280 318) no Hoare annotation was computed. [2020-08-22 01:33:19,271 INFO L268 CegarLoopResult]: For program point L239(lines 239 329) no Hoare annotation was computed. [2020-08-22 01:33:19,271 INFO L268 CegarLoopResult]: For program point L173(lines 173 355) no Hoare annotation was computed. [2020-08-22 01:33:19,271 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 241) no Hoare annotation was computed. [2020-08-22 01:33:19,271 INFO L268 CegarLoopResult]: For program point L33(lines 33 434) no Hoare annotation was computed. [2020-08-22 01:33:19,271 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2020-08-22 01:33:19,271 INFO L268 CegarLoopResult]: For program point L372(line 372) no Hoare annotation was computed. [2020-08-22 01:33:19,271 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-08-22 01:33:19,271 INFO L268 CegarLoopResult]: For program point L306(line 306) no Hoare annotation was computed. [2020-08-22 01:33:19,271 INFO L268 CegarLoopResult]: For program point L141(lines 141 360) no Hoare annotation was computed. [2020-08-22 01:33:19,271 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 224) no Hoare annotation was computed. [2020-08-22 01:33:19,272 INFO L268 CegarLoopResult]: For program point L232(lines 232 336) no Hoare annotation was computed. [2020-08-22 01:33:19,272 INFO L268 CegarLoopResult]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2020-08-22 01:33:19,272 INFO L268 CegarLoopResult]: For program point L133(lines 133 395) no Hoare annotation was computed. [2020-08-22 01:33:19,272 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-08-22 01:33:19,272 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 143) no Hoare annotation was computed. [2020-08-22 01:33:19,272 INFO L268 CegarLoopResult]: For program point L59(lines 59 425) no Hoare annotation was computed. [2020-08-22 01:33:19,272 INFO L268 CegarLoopResult]: For program point L282(line 282) no Hoare annotation was computed. [2020-08-22 01:33:19,272 INFO L268 CegarLoopResult]: For program point L51(lines 51 431) no Hoare annotation was computed. [2020-08-22 01:33:19,272 INFO L268 CegarLoopResult]: For program point L241(line 241) no Hoare annotation was computed. [2020-08-22 01:33:19,272 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 270) no Hoare annotation was computed. [2020-08-22 01:33:19,272 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-22 01:33:19,273 INFO L268 CegarLoopResult]: For program point L109(lines 109 403) no Hoare annotation was computed. [2020-08-22 01:33:19,273 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)) [2020-08-22 01:33:19,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 01:33:19 BoogieIcfgContainer [2020-08-22 01:33:19,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 01:33:19,311 INFO L168 Benchmark]: Toolchain (without parser) took 9622.88 ms. Allocated memory was 137.9 MB in the beginning and 329.3 MB in the end (delta: 191.4 MB). Free memory was 100.8 MB in the beginning and 141.4 MB in the end (delta: -40.7 MB). Peak memory consumption was 201.7 MB. Max. memory is 7.1 GB. [2020-08-22 01:33:19,311 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 01:33:19,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 486.34 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 100.5 MB in the beginning and 180.5 MB in the end (delta: -79.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-08-22 01:33:19,312 INFO L168 Benchmark]: Boogie Preprocessor took 79.35 ms. Allocated memory is still 201.9 MB. Free memory was 180.5 MB in the beginning and 177.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-08-22 01:33:19,313 INFO L168 Benchmark]: RCFGBuilder took 625.14 ms. Allocated memory is still 201.9 MB. Free memory was 177.9 MB in the beginning and 150.3 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2020-08-22 01:33:19,313 INFO L168 Benchmark]: TraceAbstraction took 8426.93 ms. Allocated memory was 201.9 MB in the beginning and 329.3 MB in the end (delta: 127.4 MB). Free memory was 149.6 MB in the beginning and 141.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 186.6 MB. Max. memory is 7.1 GB. [2020-08-22 01:33:19,315 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 486.34 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 100.5 MB in the beginning and 180.5 MB in the end (delta: -79.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 79.35 ms. Allocated memory is still 201.9 MB. Free memory was 180.5 MB in the beginning and 177.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 625.14 ms. Allocated memory is still 201.9 MB. Free memory was 177.9 MB in the beginning and 150.3 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8426.93 ms. Allocated memory was 201.9 MB in the beginning and 329.3 MB in the end (delta: 127.4 MB). Free memory was 149.6 MB in the beginning and 141.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 186.6 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: 7.0s, OverallIterations: 24, TraceHistogramMax: 2, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1392 SDtfs, 3840 SDslu, 353 SDs, 0 SdLazy, 2587 SolverSat, 194 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s 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: 0.2s 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, 0.9s 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...