/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=0.2 --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-get-tag.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 23:06:57,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 23:06:57,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 23:06:57,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 23:06:57,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 23:06:57,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 23:06:57,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 23:06:57,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 23:06:57,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 23:06:57,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 23:06:57,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 23:06:57,771 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 23:06:57,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 23:06:57,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 23:06:57,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 23:06:57,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 23:06:57,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 23:06:57,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 23:06:57,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 23:06:57,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 23:06:57,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 23:06:57,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 23:06:57,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 23:06:57,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 23:06:57,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 23:06:57,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 23:06:57,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 23:06:57,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 23:06:57,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 23:06:57,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 23:06:57,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 23:06:57,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 23:06:57,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 23:06:57,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 23:06:57,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 23:06:57,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 23:06:57,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 23:06:57,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 23:06:57,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 23:06:57,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 23:06:57,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 23:06:57,797 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 23:06:57,819 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 23:06:57,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 23:06:57,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 23:06:57,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 23:06:57,821 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 23:06:57,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 23:06:57,821 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 23:06:57,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 23:06:57,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 23:06:57,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 23:06:57,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 23:06:57,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 23:06:57,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 23:06:57,822 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 23:06:57,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 23:06:57,823 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 23:06:57,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 23:06:57,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 23:06:57,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 23:06:57,823 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 23:06:57,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 23:06:57,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 23:06:57,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 23:06:57,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 23:06:57,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 23:06:57,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 23:06:57,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 23:06:57,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 23:06:57,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 23:06:57,825 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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-08-21 23:06:58,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 23:06:58,125 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 23:06:58,128 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 23:06:58,130 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 23:06:58,130 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 23:06:58,132 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2020-08-21 23:06:58,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5da17b2c4/517f01877d65418c88bbcffeb0fa9f2a/FLAG141a381a9 [2020-08-21 23:06:58,724 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 23:06:58,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2020-08-21 23:06:58,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5da17b2c4/517f01877d65418c88bbcffeb0fa9f2a/FLAG141a381a9 [2020-08-21 23:06:59,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5da17b2c4/517f01877d65418c88bbcffeb0fa9f2a [2020-08-21 23:06:59,039 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 23:06:59,041 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 23:06:59,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 23:06:59,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 23:06:59,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 23:06:59,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:06:59" (1/1) ... [2020-08-21 23:06:59,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243023c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:06:59, skipping insertion in model container [2020-08-21 23:06:59,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:06:59" (1/1) ... [2020-08-21 23:06:59,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 23:06:59,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 23:06:59,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:06:59,361 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 23:06:59,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:06:59,415 INFO L208 MainTranslator]: Completed translation [2020-08-21 23:06:59,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:06:59 WrapperNode [2020-08-21 23:06:59,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 23:06:59,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 23:06:59,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 23:06:59,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 23:06:59,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:06:59" (1/1) ... [2020-08-21 23:06:59,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:06:59" (1/1) ... [2020-08-21 23:06:59,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:06:59" (1/1) ... [2020-08-21 23:06:59,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:06:59" (1/1) ... [2020-08-21 23:06:59,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:06:59" (1/1) ... [2020-08-21 23:06:59,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:06:59" (1/1) ... [2020-08-21 23:06:59,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:06:59" (1/1) ... [2020-08-21 23:06:59,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 23:06:59,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 23:06:59,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 23:06:59,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 23:06:59,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:06:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 23:06:59,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 23:06:59,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 23:06:59,639 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-21 23:06:59,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 23:06:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 23:06:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 23:06:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-21 23:06:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-21 23:06:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 23:06:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 23:06:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 23:06:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 23:07:00,049 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 23:07:00,050 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 23:07:00,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:07:00 BoogieIcfgContainer [2020-08-21 23:07:00,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 23:07:00,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 23:07:00,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 23:07:00,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 23:07:00,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:06:59" (1/3) ... [2020-08-21 23:07:00,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a48b5cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:07:00, skipping insertion in model container [2020-08-21 23:07:00,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:06:59" (2/3) ... [2020-08-21 23:07:00,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a48b5cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:07:00, skipping insertion in model container [2020-08-21 23:07:00,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:07:00" (3/3) ... [2020-08-21 23:07:00,063 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+lhb-reducer.c [2020-08-21 23:07:00,073 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 23:07:00,080 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-08-21 23:07:00,094 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-08-21 23:07:00,120 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 23:07:00,121 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 23:07:00,121 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 23:07:00,121 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 23:07:00,121 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 23:07:00,121 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 23:07:00,121 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 23:07:00,122 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 23:07:00,147 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-08-21 23:07:00,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-08-21 23:07:00,152 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:00,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:00,154 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:00,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:00,160 INFO L82 PathProgramCache]: Analyzing trace with hash -452302183, now seen corresponding path program 1 times [2020-08-21 23:07:00,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:00,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1664967340] [2020-08-21 23:07:00,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:00,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:00,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:00,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1664967340] [2020-08-21 23:07:00,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:00,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 23:07:00,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939479062] [2020-08-21 23:07:00,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:07:00,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:00,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:07:00,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:07:00,523 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 5 states. [2020-08-21 23:07:00,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:00,899 INFO L93 Difference]: Finished difference Result 135 states and 178 transitions. [2020-08-21 23:07:00,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 23:07:00,901 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-08-21 23:07:00,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:00,913 INFO L225 Difference]: With dead ends: 135 [2020-08-21 23:07:00,913 INFO L226 Difference]: Without dead ends: 111 [2020-08-21 23:07:00,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:07:00,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-08-21 23:07:00,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 73. [2020-08-21 23:07:00,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-08-21 23:07:00,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2020-08-21 23:07:00,965 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 12 [2020-08-21 23:07:00,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:00,966 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2020-08-21 23:07:00,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:07:00,966 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2020-08-21 23:07:00,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-08-21 23:07:00,967 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:00,967 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:00,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 23:07:00,968 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:00,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:00,969 INFO L82 PathProgramCache]: Analyzing trace with hash -449131431, now seen corresponding path program 1 times [2020-08-21 23:07:00,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:00,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721281718] [2020-08-21 23:07:00,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:01,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:01,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:01,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721281718] [2020-08-21 23:07:01,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:01,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 23:07:01,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516605226] [2020-08-21 23:07:01,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:07:01,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:01,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:07:01,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:07:01,083 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand 5 states. [2020-08-21 23:07:01,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:01,415 INFO L93 Difference]: Finished difference Result 111 states and 117 transitions. [2020-08-21 23:07:01,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 23:07:01,416 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-08-21 23:07:01,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:01,419 INFO L225 Difference]: With dead ends: 111 [2020-08-21 23:07:01,419 INFO L226 Difference]: Without dead ends: 109 [2020-08-21 23:07:01,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:07:01,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-08-21 23:07:01,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 71. [2020-08-21 23:07:01,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-08-21 23:07:01,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2020-08-21 23:07:01,448 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 12 [2020-08-21 23:07:01,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:01,448 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2020-08-21 23:07:01,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:07:01,449 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2020-08-21 23:07:01,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-21 23:07:01,449 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:01,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:01,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 23:07:01,453 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:01,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:01,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1218997650, now seen corresponding path program 1 times [2020-08-21 23:07:01,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:01,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642656589] [2020-08-21 23:07:01,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:01,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:01,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:01,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642656589] [2020-08-21 23:07:01,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:01,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 23:07:01,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24530713] [2020-08-21 23:07:01,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:07:01,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:01,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:07:01,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:07:01,531 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 6 states. [2020-08-21 23:07:01,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:01,720 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2020-08-21 23:07:01,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:07:01,720 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-08-21 23:07:01,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:01,723 INFO L225 Difference]: With dead ends: 73 [2020-08-21 23:07:01,724 INFO L226 Difference]: Without dead ends: 71 [2020-08-21 23:07:01,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:07:01,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-08-21 23:07:01,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2020-08-21 23:07:01,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-08-21 23:07:01,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2020-08-21 23:07:01,743 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 15 [2020-08-21 23:07:01,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:01,749 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2020-08-21 23:07:01,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:07:01,749 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2020-08-21 23:07:01,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-21 23:07:01,750 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:01,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:01,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 23:07:01,752 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:01,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:01,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1248304044, now seen corresponding path program 1 times [2020-08-21 23:07:01,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:01,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [661640156] [2020-08-21 23:07:01,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:01,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:01,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:01,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [661640156] [2020-08-21 23:07:01,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:01,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 23:07:01,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597030881] [2020-08-21 23:07:01,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:07:01,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:01,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:07:01,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:07:01,855 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand 6 states. [2020-08-21 23:07:02,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:02,024 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2020-08-21 23:07:02,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:07:02,025 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-08-21 23:07:02,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:02,026 INFO L225 Difference]: With dead ends: 71 [2020-08-21 23:07:02,026 INFO L226 Difference]: Without dead ends: 69 [2020-08-21 23:07:02,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:07:02,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-08-21 23:07:02,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2020-08-21 23:07:02,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-08-21 23:07:02,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2020-08-21 23:07:02,035 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 15 [2020-08-21 23:07:02,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:02,035 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2020-08-21 23:07:02,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:07:02,036 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2020-08-21 23:07:02,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-21 23:07:02,037 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:02,037 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:02,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 23:07:02,038 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:02,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:02,038 INFO L82 PathProgramCache]: Analyzing trace with hash 865781601, now seen corresponding path program 1 times [2020-08-21 23:07:02,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:02,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1917695906] [2020-08-21 23:07:02,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:02,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:02,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:02,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1917695906] [2020-08-21 23:07:02,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:02,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 23:07:02,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788681577] [2020-08-21 23:07:02,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:07:02,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:02,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:07:02,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:07:02,093 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand 5 states. [2020-08-21 23:07:02,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:02,248 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2020-08-21 23:07:02,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 23:07:02,248 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-08-21 23:07:02,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:02,250 INFO L225 Difference]: With dead ends: 69 [2020-08-21 23:07:02,250 INFO L226 Difference]: Without dead ends: 65 [2020-08-21 23:07:02,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:07:02,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-08-21 23:07:02,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2020-08-21 23:07:02,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-08-21 23:07:02,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2020-08-21 23:07:02,258 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 16 [2020-08-21 23:07:02,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:02,258 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2020-08-21 23:07:02,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:07:02,259 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2020-08-21 23:07:02,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-21 23:07:02,260 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:02,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:02,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 23:07:02,261 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:02,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:02,261 INFO L82 PathProgramCache]: Analyzing trace with hash -42274612, now seen corresponding path program 1 times [2020-08-21 23:07:02,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:02,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1681693079] [2020-08-21 23:07:02,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:02,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:02,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:02,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1681693079] [2020-08-21 23:07:02,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:02,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 23:07:02,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390807036] [2020-08-21 23:07:02,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:07:02,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:02,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:07:02,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:07:02,356 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand 6 states. [2020-08-21 23:07:02,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:02,582 INFO L93 Difference]: Finished difference Result 108 states and 115 transitions. [2020-08-21 23:07:02,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:07:02,583 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-08-21 23:07:02,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:02,584 INFO L225 Difference]: With dead ends: 108 [2020-08-21 23:07:02,584 INFO L226 Difference]: Without dead ends: 106 [2020-08-21 23:07:02,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:07:02,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-08-21 23:07:02,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 61. [2020-08-21 23:07:02,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-08-21 23:07:02,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2020-08-21 23:07:02,596 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 16 [2020-08-21 23:07:02,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:02,597 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2020-08-21 23:07:02,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:07:02,597 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2020-08-21 23:07:02,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-21 23:07:02,598 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:02,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:02,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 23:07:02,599 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:02,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:02,599 INFO L82 PathProgramCache]: Analyzing trace with hash -42288514, now seen corresponding path program 1 times [2020-08-21 23:07:02,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:02,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520083800] [2020-08-21 23:07:02,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:02,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:02,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:02,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520083800] [2020-08-21 23:07:02,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:02,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 23:07:02,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329322190] [2020-08-21 23:07:02,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:07:02,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:02,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:07:02,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:07:02,654 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand 6 states. [2020-08-21 23:07:02,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:02,854 INFO L93 Difference]: Finished difference Result 93 states and 99 transitions. [2020-08-21 23:07:02,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:07:02,854 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-08-21 23:07:02,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:02,855 INFO L225 Difference]: With dead ends: 93 [2020-08-21 23:07:02,855 INFO L226 Difference]: Without dead ends: 91 [2020-08-21 23:07:02,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:07:02,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-08-21 23:07:02,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 59. [2020-08-21 23:07:02,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-08-21 23:07:02,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2020-08-21 23:07:02,864 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 16 [2020-08-21 23:07:02,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:02,864 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2020-08-21 23:07:02,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:07:02,865 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2020-08-21 23:07:02,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-21 23:07:02,865 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:02,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:02,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 23:07:02,866 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:02,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:02,866 INFO L82 PathProgramCache]: Analyzing trace with hash -42716511, now seen corresponding path program 1 times [2020-08-21 23:07:02,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:02,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [601575167] [2020-08-21 23:07:02,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:02,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:02,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:02,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [601575167] [2020-08-21 23:07:02,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:02,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 23:07:02,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586358106] [2020-08-21 23:07:02,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:07:02,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:02,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:07:02,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:07:02,935 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 5 states. [2020-08-21 23:07:03,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:03,054 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2020-08-21 23:07:03,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 23:07:03,055 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-08-21 23:07:03,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:03,056 INFO L225 Difference]: With dead ends: 61 [2020-08-21 23:07:03,056 INFO L226 Difference]: Without dead ends: 57 [2020-08-21 23:07:03,056 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:07:03,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-08-21 23:07:03,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2020-08-21 23:07:03,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-08-21 23:07:03,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2020-08-21 23:07:03,061 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 16 [2020-08-21 23:07:03,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:03,062 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2020-08-21 23:07:03,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:07:03,062 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2020-08-21 23:07:03,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-21 23:07:03,063 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:03,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:03,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 23:07:03,063 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:03,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:03,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1083648192, now seen corresponding path program 1 times [2020-08-21 23:07:03,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:03,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506053779] [2020-08-21 23:07:03,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:03,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:03,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:03,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506053779] [2020-08-21 23:07:03,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:03,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 23:07:03,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745476076] [2020-08-21 23:07:03,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:07:03,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:03,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:07:03,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:07:03,127 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 6 states. [2020-08-21 23:07:03,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:03,294 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2020-08-21 23:07:03,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:07:03,294 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-08-21 23:07:03,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:03,295 INFO L225 Difference]: With dead ends: 74 [2020-08-21 23:07:03,295 INFO L226 Difference]: Without dead ends: 72 [2020-08-21 23:07:03,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:07:03,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-08-21 23:07:03,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 53. [2020-08-21 23:07:03,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-08-21 23:07:03,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2020-08-21 23:07:03,307 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 17 [2020-08-21 23:07:03,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:03,307 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2020-08-21 23:07:03,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:07:03,307 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2020-08-21 23:07:03,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-21 23:07:03,308 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:03,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:03,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 23:07:03,309 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:03,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:03,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1085187392, now seen corresponding path program 1 times [2020-08-21 23:07:03,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:03,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863747917] [2020-08-21 23:07:03,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:03,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:03,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:03,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863747917] [2020-08-21 23:07:03,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:03,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 23:07:03,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702492415] [2020-08-21 23:07:03,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:07:03,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:03,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:07:03,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:07:03,370 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 6 states. [2020-08-21 23:07:03,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:03,501 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2020-08-21 23:07:03,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:07:03,502 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-08-21 23:07:03,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:03,503 INFO L225 Difference]: With dead ends: 55 [2020-08-21 23:07:03,503 INFO L226 Difference]: Without dead ends: 53 [2020-08-21 23:07:03,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:07:03,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-08-21 23:07:03,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2020-08-21 23:07:03,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-08-21 23:07:03,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2020-08-21 23:07:03,508 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 17 [2020-08-21 23:07:03,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:03,508 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2020-08-21 23:07:03,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:07:03,509 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2020-08-21 23:07:03,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-21 23:07:03,509 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:03,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:03,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 23:07:03,510 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:03,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:03,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1310509752, now seen corresponding path program 1 times [2020-08-21 23:07:03,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:03,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1896779700] [2020-08-21 23:07:03,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:03,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:03,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:03,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:03,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1896779700] [2020-08-21 23:07:03,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:03,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 23:07:03,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877850004] [2020-08-21 23:07:03,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:07:03,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:03,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:07:03,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:07:03,600 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 6 states. [2020-08-21 23:07:03,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:03,817 INFO L93 Difference]: Finished difference Result 86 states and 93 transitions. [2020-08-21 23:07:03,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 23:07:03,817 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-08-21 23:07:03,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:03,818 INFO L225 Difference]: With dead ends: 86 [2020-08-21 23:07:03,818 INFO L226 Difference]: Without dead ends: 84 [2020-08-21 23:07:03,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:07:03,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-08-21 23:07:03,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 49. [2020-08-21 23:07:03,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-08-21 23:07:03,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2020-08-21 23:07:03,823 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 17 [2020-08-21 23:07:03,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:03,824 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2020-08-21 23:07:03,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:07:03,824 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2020-08-21 23:07:03,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-21 23:07:03,825 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:03,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:03,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 23:07:03,825 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:03,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:03,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1310940728, now seen corresponding path program 1 times [2020-08-21 23:07:03,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:03,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806098625] [2020-08-21 23:07:03,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:03,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:03,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:03,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806098625] [2020-08-21 23:07:03,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:03,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 23:07:03,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058011450] [2020-08-21 23:07:03,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:07:03,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:03,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:07:03,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:07:03,904 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 6 states. [2020-08-21 23:07:04,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:04,099 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2020-08-21 23:07:04,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 23:07:04,099 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-08-21 23:07:04,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:04,100 INFO L225 Difference]: With dead ends: 76 [2020-08-21 23:07:04,100 INFO L226 Difference]: Without dead ends: 74 [2020-08-21 23:07:04,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:07:04,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-08-21 23:07:04,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 47. [2020-08-21 23:07:04,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-08-21 23:07:04,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2020-08-21 23:07:04,107 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 17 [2020-08-21 23:07:04,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:04,108 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2020-08-21 23:07:04,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:07:04,109 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-08-21 23:07:04,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-21 23:07:04,111 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:04,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:04,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-21 23:07:04,111 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:04,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:04,112 INFO L82 PathProgramCache]: Analyzing trace with hash -765275888, now seen corresponding path program 1 times [2020-08-21 23:07:04,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:04,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [666824210] [2020-08-21 23:07:04,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:04,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:04,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:04,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [666824210] [2020-08-21 23:07:04,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:04,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 23:07:04,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361003451] [2020-08-21 23:07:04,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:07:04,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:04,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:07:04,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:07:04,198 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 6 states. [2020-08-21 23:07:04,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:04,344 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2020-08-21 23:07:04,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:07:04,344 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-08-21 23:07:04,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:04,345 INFO L225 Difference]: With dead ends: 69 [2020-08-21 23:07:04,346 INFO L226 Difference]: Without dead ends: 67 [2020-08-21 23:07:04,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:07:04,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-08-21 23:07:04,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 45. [2020-08-21 23:07:04,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-08-21 23:07:04,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2020-08-21 23:07:04,351 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 18 [2020-08-21 23:07:04,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:04,351 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2020-08-21 23:07:04,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:07:04,352 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2020-08-21 23:07:04,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-21 23:07:04,352 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:04,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:04,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-21 23:07:04,353 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:04,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:04,353 INFO L82 PathProgramCache]: Analyzing trace with hash -766641308, now seen corresponding path program 1 times [2020-08-21 23:07:04,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:04,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1897463210] [2020-08-21 23:07:04,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:04,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:04,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:04,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1897463210] [2020-08-21 23:07:04,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:04,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 23:07:04,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967847524] [2020-08-21 23:07:04,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:07:04,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:04,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:07:04,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:07:04,432 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 6 states. [2020-08-21 23:07:04,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:04,592 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2020-08-21 23:07:04,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 23:07:04,593 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-08-21 23:07:04,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:04,594 INFO L225 Difference]: With dead ends: 59 [2020-08-21 23:07:04,594 INFO L226 Difference]: Without dead ends: 57 [2020-08-21 23:07:04,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:07:04,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-08-21 23:07:04,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 43. [2020-08-21 23:07:04,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-08-21 23:07:04,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2020-08-21 23:07:04,599 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 18 [2020-08-21 23:07:04,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:04,599 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2020-08-21 23:07:04,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:07:04,599 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2020-08-21 23:07:04,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-21 23:07:04,600 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:04,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:04,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-21 23:07:04,601 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:04,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:04,601 INFO L82 PathProgramCache]: Analyzing trace with hash -718926058, now seen corresponding path program 1 times [2020-08-21 23:07:04,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:04,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051567875] [2020-08-21 23:07:04,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:04,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:04,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:04,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2051567875] [2020-08-21 23:07:04,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:04,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 23:07:04,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740648871] [2020-08-21 23:07:04,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:07:04,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:04,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:07:04,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:07:04,662 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 6 states. [2020-08-21 23:07:04,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:04,793 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2020-08-21 23:07:04,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 23:07:04,794 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-08-21 23:07:04,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:04,795 INFO L225 Difference]: With dead ends: 43 [2020-08-21 23:07:04,795 INFO L226 Difference]: Without dead ends: 39 [2020-08-21 23:07:04,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-08-21 23:07:04,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-08-21 23:07:04,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-08-21 23:07:04,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-08-21 23:07:04,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-08-21 23:07:04,802 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 18 [2020-08-21 23:07:04,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:04,803 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-08-21 23:07:04,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:07:04,804 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-08-21 23:07:04,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-21 23:07:04,806 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:04,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:04,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-21 23:07:04,807 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:04,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:04,809 INFO L82 PathProgramCache]: Analyzing trace with hash 2046254387, now seen corresponding path program 1 times [2020-08-21 23:07:04,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:04,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [329923001] [2020-08-21 23:07:04,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:04,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:04,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:04,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [329923001] [2020-08-21 23:07:04,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:04,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 23:07:04,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460382792] [2020-08-21 23:07:04,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 23:07:04,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:04,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 23:07:04,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 23:07:04,895 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 6 states. [2020-08-21 23:07:05,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:05,040 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2020-08-21 23:07:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 23:07:05,041 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-08-21 23:07:05,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:05,042 INFO L225 Difference]: With dead ends: 54 [2020-08-21 23:07:05,042 INFO L226 Difference]: Without dead ends: 52 [2020-08-21 23:07:05,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:07:05,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-08-21 23:07:05,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 37. [2020-08-21 23:07:05,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-08-21 23:07:05,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2020-08-21 23:07:05,049 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 19 [2020-08-21 23:07:05,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:05,050 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2020-08-21 23:07:05,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 23:07:05,050 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2020-08-21 23:07:05,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-21 23:07:05,050 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:05,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:05,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-21 23:07:05,051 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:05,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:05,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1992174599, now seen corresponding path program 1 times [2020-08-21 23:07:05,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:05,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [108778312] [2020-08-21 23:07:05,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:05,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:05,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:05,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [108778312] [2020-08-21 23:07:05,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:05,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 23:07:05,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370334635] [2020-08-21 23:07:05,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:07:05,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:05,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:07:05,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:07:05,102 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 5 states. [2020-08-21 23:07:05,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:05,180 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2020-08-21 23:07:05,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 23:07:05,181 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-08-21 23:07:05,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:05,182 INFO L225 Difference]: With dead ends: 37 [2020-08-21 23:07:05,182 INFO L226 Difference]: Without dead ends: 35 [2020-08-21 23:07:05,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:07:05,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-08-21 23:07:05,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-08-21 23:07:05,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-08-21 23:07:05,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-08-21 23:07:05,187 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 20 [2020-08-21 23:07:05,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:05,187 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-08-21 23:07:05,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:07:05,188 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-08-21 23:07:05,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-21 23:07:05,188 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:05,188 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] [2020-08-21 23:07:05,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-21 23:07:05,189 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:05,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:05,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1627873548, now seen corresponding path program 1 times [2020-08-21 23:07:05,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:05,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1002308784] [2020-08-21 23:07:05,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:05,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:05,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:05,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1002308784] [2020-08-21 23:07:05,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:05,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 23:07:05,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675128590] [2020-08-21 23:07:05,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:07:05,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:05,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:07:05,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:07:05,254 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 5 states. [2020-08-21 23:07:05,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:05,387 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2020-08-21 23:07:05,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 23:07:05,388 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-08-21 23:07:05,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:05,388 INFO L225 Difference]: With dead ends: 37 [2020-08-21 23:07:05,388 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 23:07:05,390 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:07:05,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 23:07:05,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 23:07:05,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 23:07:05,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 23:07:05,391 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-08-21 23:07:05,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:05,391 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 23:07:05,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:07:05,392 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 23:07:05,392 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 23:07:05,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-08-21 23:07:05,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 23:07:05,740 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 23:07:05,740 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__tmp_383_0~0 |old(~__tmp_383_0~0)|) (= ~__tmp_259_0~0 |old(~__tmp_259_0~0)|) (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_305~0 |old(~__return_305~0)|)) [2020-08-21 23:07:05,740 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 23:07:05,741 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 23:07:05,741 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-21 23:07:05,741 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 23:07:05,741 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 23:07:05,741 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-08-21 23:07:05,742 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-08-21 23:07:05,742 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-08-21 23:07:05,742 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-08-21 23:07:05,742 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2020-08-21 23:07:05,742 INFO L264 CegarLoopResult]: At program point L382(lines 280 389) the Hoare annotation is: (and (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (not (= main_~__VERIFIER_assert__cond~13 0)) (<= 0 main_~main__t~0)) [2020-08-21 23:07:05,743 INFO L264 CegarLoopResult]: At program point L349(lines 30 393) the Hoare annotation is: (and (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (<= 0 main_~main__t~0)) [2020-08-21 23:07:05,743 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 400) no Hoare annotation was computed. [2020-08-21 23:07:05,743 INFO L268 CegarLoopResult]: For program point L184(lines 184 194) no Hoare annotation was computed. [2020-08-21 23:07:05,743 INFO L268 CegarLoopResult]: For program point L374(lines 374 383) no Hoare annotation was computed. [2020-08-21 23:07:05,743 INFO L268 CegarLoopResult]: For program point L341(lines 341 350) no Hoare annotation was computed. [2020-08-21 23:07:05,743 INFO L268 CegarLoopResult]: For program point L110(lines 110 201) no Hoare annotation was computed. [2020-08-21 23:07:05,744 INFO L268 CegarLoopResult]: For program point L234(line 234) no Hoare annotation was computed. [2020-08-21 23:07:05,744 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 276) no Hoare annotation was computed. [2020-08-21 23:07:05,744 INFO L264 CegarLoopResult]: At program point L193(lines 54 251) the Hoare annotation is: (and (<= 1 main_~main__t~0) (<= main_~main__t~0 main_~main__tagbuf_len~0)) [2020-08-21 23:07:05,744 INFO L268 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-08-21 23:07:05,744 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 152) no Hoare annotation was computed. [2020-08-21 23:07:05,745 INFO L268 CegarLoopResult]: For program point L276(line 276) no Hoare annotation was computed. [2020-08-21 23:07:05,745 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 331) no Hoare annotation was computed. [2020-08-21 23:07:05,745 INFO L268 CegarLoopResult]: For program point L103(lines 103 207) no Hoare annotation was computed. [2020-08-21 23:07:05,745 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-21 23:07:05,745 INFO L268 CegarLoopResult]: For program point L37(lines 37 253) no Hoare annotation was computed. [2020-08-21 23:07:05,746 INFO L268 CegarLoopResult]: For program point L293(lines 293 315) no Hoare annotation was computed. [2020-08-21 23:07:05,746 INFO L268 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-08-21 23:07:05,746 INFO L268 CegarLoopResult]: For program point L376(line 376) no Hoare annotation was computed. [2020-08-21 23:07:05,746 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2020-08-21 23:07:05,746 INFO L268 CegarLoopResult]: For program point L343(line 343) no Hoare annotation was computed. [2020-08-21 23:07:05,746 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-21 23:07:05,746 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 400) no Hoare annotation was computed. [2020-08-21 23:07:05,747 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 307) no Hoare annotation was computed. [2020-08-21 23:07:05,747 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 50) no Hoare annotation was computed. [2020-08-21 23:07:05,747 INFO L268 CegarLoopResult]: For program point L30(lines 30 393) no Hoare annotation was computed. [2020-08-21 23:07:05,747 INFO L268 CegarLoopResult]: For program point L286(lines 286 388) no Hoare annotation was computed. [2020-08-21 23:07:05,747 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 13 400) the Hoare annotation is: (and (= |old(~__tmp_259_0~0)| ~__tmp_259_0~0) (= |old(~__return_305~0)| ~__return_305~0) (= |old(~__tmp_383_0~0)| ~__tmp_383_0~0)) [2020-08-21 23:07:05,747 INFO L268 CegarLoopResult]: For program point L220(lines 220 242) no Hoare annotation was computed. [2020-08-21 23:07:05,748 INFO L268 CegarLoopResult]: For program point L22(lines 22 394) no Hoare annotation was computed. [2020-08-21 23:07:05,748 INFO L268 CegarLoopResult]: For program point L80(lines 80 90) no Hoare annotation was computed. [2020-08-21 23:07:05,748 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 186) no Hoare annotation was computed. [2020-08-21 23:07:05,748 INFO L268 CegarLoopResult]: For program point L138(lines 138 160) no Hoare annotation was computed. [2020-08-21 23:07:05,748 INFO L268 CegarLoopResult]: For program point L295(line 295) no Hoare annotation was computed. [2020-08-21 23:07:05,748 INFO L268 CegarLoopResult]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 364) no Hoare annotation was computed. [2020-08-21 23:07:05,748 INFO L268 CegarLoopResult]: For program point L122(lines 122 199) no Hoare annotation was computed. [2020-08-21 23:07:05,748 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 174) no Hoare annotation was computed. [2020-08-21 23:07:05,749 INFO L271 CegarLoopResult]: At program point L312(lines 30 393) the Hoare annotation is: true [2020-08-21 23:07:05,749 INFO L268 CegarLoopResult]: For program point L213(lines 213 248) no Hoare annotation was computed. [2020-08-21 23:07:05,749 INFO L268 CegarLoopResult]: For program point L48(lines 48 251) no Hoare annotation was computed. [2020-08-21 23:07:05,749 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 343) no Hoare annotation was computed. [2020-08-21 23:07:05,749 INFO L268 CegarLoopResult]: For program point L172(lines 172 196) no Hoare annotation was computed. [2020-08-21 23:07:05,749 INFO L268 CegarLoopResult]: For program point L362(lines 362 385) no Hoare annotation was computed. [2020-08-21 23:07:05,749 INFO L268 CegarLoopResult]: For program point L329(lines 329 352) no Hoare annotation was computed. [2020-08-21 23:07:05,749 INFO L268 CegarLoopResult]: For program point L263(lines 263 391) no Hoare annotation was computed. [2020-08-21 23:07:05,749 INFO L268 CegarLoopResult]: For program point L131(lines 131 198) no Hoare annotation was computed. [2020-08-21 23:07:05,750 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2020-08-21 23:07:05,750 INFO L268 CegarLoopResult]: For program point L222(line 222) no Hoare annotation was computed. [2020-08-21 23:07:05,750 INFO L264 CegarLoopResult]: At program point L247(lines 99 249) the Hoare annotation is: (and (<= (+ main_~main__t~0 1) main_~main__tagbuf_len~0) (<= 1 main_~main__t~0)) [2020-08-21 23:07:05,750 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-21 23:07:05,750 INFO L268 CegarLoopResult]: For program point L305(lines 305 313) no Hoare annotation was computed. [2020-08-21 23:07:05,750 INFO L268 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-08-21 23:07:05,750 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 234) no Hoare annotation was computed. [2020-08-21 23:07:05,751 INFO L268 CegarLoopResult]: For program point L99(lines 99 249) no Hoare annotation was computed. [2020-08-21 23:07:05,751 INFO L268 CegarLoopResult]: For program point L322(lines 322 387) no Hoare annotation was computed. [2020-08-21 23:07:05,751 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 70) no Hoare annotation was computed. [2020-08-21 23:07:05,751 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-21 23:07:05,751 INFO L268 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-08-21 23:07:05,751 INFO L268 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-08-21 23:07:05,752 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 222) no Hoare annotation was computed. [2020-08-21 23:07:05,752 INFO L268 CegarLoopResult]: For program point L364(line 364) no Hoare annotation was computed. [2020-08-21 23:07:05,752 INFO L268 CegarLoopResult]: For program point L331(line 331) no Hoare annotation was computed. [2020-08-21 23:07:05,752 INFO L268 CegarLoopResult]: For program point L232(lines 232 240) no Hoare annotation was computed. [2020-08-21 23:07:05,752 INFO L268 CegarLoopResult]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 376) no Hoare annotation was computed. [2020-08-21 23:07:05,753 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2020-08-21 23:07:05,753 INFO L268 CegarLoopResult]: For program point L150(lines 150 158) no Hoare annotation was computed. [2020-08-21 23:07:05,753 INFO L268 CegarLoopResult]: For program point L307(line 307) no Hoare annotation was computed. [2020-08-21 23:07:05,753 INFO L268 CegarLoopResult]: For program point L18(lines 18 399) no Hoare annotation was computed. [2020-08-21 23:07:05,753 INFO L268 CegarLoopResult]: For program point L274(lines 274 389) no Hoare annotation was computed. [2020-08-21 23:07:05,753 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 295) no Hoare annotation was computed. [2020-08-21 23:07:05,754 INFO L268 CegarLoopResult]: For program point L68(lines 68 92) no Hoare annotation was computed. [2020-08-21 23:07:05,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 11:07:05 BoogieIcfgContainer [2020-08-21 23:07:05,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 23:07:05,790 INFO L168 Benchmark]: Toolchain (without parser) took 6745.10 ms. Allocated memory was 137.9 MB in the beginning and 295.2 MB in the end (delta: 157.3 MB). Free memory was 100.9 MB in the beginning and 226.3 MB in the end (delta: -125.4 MB). Peak memory consumption was 167.5 MB. Max. memory is 7.1 GB. [2020-08-21 23:07:05,791 INFO L168 Benchmark]: CDTParser took 0.29 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-21 23:07:05,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.93 ms. Allocated memory is still 137.9 MB. Free memory was 100.7 MB in the beginning and 87.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-08-21 23:07:05,797 INFO L168 Benchmark]: Boogie Preprocessor took 157.10 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 87.7 MB in the beginning and 176.9 MB in the end (delta: -89.2 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-08-21 23:07:05,801 INFO L168 Benchmark]: RCFGBuilder took 481.39 ms. Allocated memory is still 199.8 MB. Free memory was 176.9 MB in the beginning and 150.9 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2020-08-21 23:07:05,802 INFO L168 Benchmark]: TraceAbstraction took 5727.78 ms. Allocated memory was 199.8 MB in the beginning and 295.2 MB in the end (delta: 95.4 MB). Free memory was 150.3 MB in the beginning and 226.3 MB in the end (delta: -76.1 MB). Peak memory consumption was 155.0 MB. Max. memory is 7.1 GB. [2020-08-21 23:07:05,811 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 373.93 ms. Allocated memory is still 137.9 MB. Free memory was 100.7 MB in the beginning and 87.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 157.10 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 87.7 MB in the beginning and 176.9 MB in the end (delta: -89.2 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 481.39 ms. Allocated memory is still 199.8 MB. Free memory was 176.9 MB in the beginning and 150.9 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5727.78 ms. Allocated memory was 199.8 MB in the beginning and 295.2 MB in the end (delta: 95.4 MB). Free memory was 150.3 MB in the beginning and 226.3 MB in the end (delta: -76.1 MB). Peak memory consumption was 155.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 343]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 364]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 174]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 186]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 307]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 222]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 234]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 331]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 295]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 124]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 276]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 376]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 82]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 152]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 140]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 112]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 70]: 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: 54]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: main__t + 1 <= main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: main__t + 1 <= main__tagbuf_len && 0 <= main__t - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 280]: Loop Invariant Derived loop invariant: (main__t + 1 <= main__tagbuf_len && !(__VERIFIER_assert__cond == 0)) && 0 <= main__t - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 84 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 18, TraceHistogramMax: 1, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 838 SDtfs, 1435 SDslu, 856 SDs, 0 SdLazy, 2218 SolverSat, 136 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 67 SyntacticMatches, 7 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 18 MinimizatonAttempts, 295 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 14 NumberOfFragments, 64 HoareAnnotationTreeSize, 9 FomulaSimplifications, 145186 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 6289 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 300 NumberOfCodeBlocks, 300 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 13120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 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...