/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:46:48,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 01:46:48,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 01:46:48,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 01:46:48,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 01:46:48,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 01:46:48,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 01:46:48,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 01:46:48,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 01:46:48,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 01:46:48,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 01:46:48,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 01:46:48,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:46:48,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:46:48,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:46:48,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:46:48,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:46:48,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:46:48,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:46:48,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:46:48,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:46:48,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:46:48,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:46:48,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:46:48,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 01:46:48,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 01:46:48,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 01:46:48,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 01:46:48,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 01:46:48,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 01:46:48,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 01:46:48,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 01:46:48,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 01:46:48,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 01:46:48,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 01:46:48,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 01:46:48,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 01:46:48,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 01:46:48,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:46:48,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:46:48,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:46:48,183 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 01:46:48,211 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:46:48,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:46:48,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:46:48,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:46:48,215 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:46:48,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:46:48,216 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:46:48,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:46:48,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:46:48,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:46:48,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:46:48,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:46:48,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:46:48,219 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:46:48,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:46:48,219 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:46:48,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:46:48,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:46:48,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:46:48,220 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:46:48,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:46:48,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:46:48,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:46:48,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:46:48,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:46:48,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:46:48,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:48,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:46:48,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:46:48,222 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 01:46:48,554 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:46:48,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:46:48,575 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:46:48,577 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:46:48,577 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:46:48,578 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-07-21 01:46:48,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a9389b5b/d3f9dd93e57e462480967bb7ecfda012/FLAG61e2c0cc3 [2020-07-21 01:46:49,146 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:46:49,147 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-07-21 01:46:49,155 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a9389b5b/d3f9dd93e57e462480967bb7ecfda012/FLAG61e2c0cc3 [2020-07-21 01:46:49,528 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a9389b5b/d3f9dd93e57e462480967bb7ecfda012 [2020-07-21 01:46:49,541 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:46:49,544 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:46:49,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:46:49,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:46:49,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:46:49,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:46:49" (1/1) ... [2020-07-21 01:46:49,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3990f262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:46:49, skipping insertion in model container [2020-07-21 01:46:49,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:46:49" (1/1) ... [2020-07-21 01:46:49,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:46:49,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:46:49,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:46:49,834 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:46:49,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:46:49,994 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:46:49,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:46:49 WrapperNode [2020-07-21 01:46:49,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:46:49,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:46:49,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:46:49,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:46:50,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:46:49" (1/1) ... [2020-07-21 01:46:50,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:46:49" (1/1) ... [2020-07-21 01:46:50,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:46:49" (1/1) ... [2020-07-21 01:46:50,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:46:49" (1/1) ... [2020-07-21 01:46:50,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:46:49" (1/1) ... [2020-07-21 01:46:50,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:46:49" (1/1) ... [2020-07-21 01:46:50,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:46:49" (1/1) ... [2020-07-21 01:46:50,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:46:50,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:46:50,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:46:50,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:46:50,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:46:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:46:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:46:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:46:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-21 01:46:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:46:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:46:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-21 01:46:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-21 01:46:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 01:46:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:46:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:46:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:46:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:46:50,655 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:46:50,655 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 01:46:50,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:46:50 BoogieIcfgContainer [2020-07-21 01:46:50,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:46:50,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:46:50,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:46:50,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:46:50,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:46:49" (1/3) ... [2020-07-21 01:46:50,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df85ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:46:50, skipping insertion in model container [2020-07-21 01:46:50,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:46:49" (2/3) ... [2020-07-21 01:46:50,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df85ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:46:50, skipping insertion in model container [2020-07-21 01:46:50,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:46:50" (3/3) ... [2020-07-21 01:46:50,676 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-07-21 01:46:50,688 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:46:50,696 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-07-21 01:46:50,712 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-07-21 01:46:50,740 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:46:50,740 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:46:50,741 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:46:50,741 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:46:50,741 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:46:50,742 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:46:50,742 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:46:50,742 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:46:50,769 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-07-21 01:46:50,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-21 01:46:50,778 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:50,779 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:50,780 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]=== [2020-07-21 01:46:50,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:50,788 INFO L82 PathProgramCache]: Analyzing trace with hash -2019463306, now seen corresponding path program 1 times [2020-07-21 01:46:50,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:50,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779054414] [2020-07-21 01:46:50,800 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:50,905 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:50,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:50,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 01:46:50,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:50,974 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:51,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:51,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:51,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779054414] [2020-07-21 01:46:51,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:51,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:46:51,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172470234] [2020-07-21 01:46:51,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:46:51,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:51,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:46:51,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:46:51,044 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 3 states. [2020-07-21 01:46:51,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:51,088 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2020-07-21 01:46:51,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:46:51,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-07-21 01:46:51,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:51,102 INFO L225 Difference]: With dead ends: 93 [2020-07-21 01:46:51,103 INFO L226 Difference]: Without dead ends: 80 [2020-07-21 01:46:51,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:46:51,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-07-21 01:46:51,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-07-21 01:46:51,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-07-21 01:46:51,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2020-07-21 01:46:51,154 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 19 [2020-07-21 01:46:51,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:51,154 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2020-07-21 01:46:51,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:46:51,155 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2020-07-21 01:46:51,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-21 01:46:51,155 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:51,156 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] [2020-07-21 01:46:51,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:51,358 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]=== [2020-07-21 01:46:51,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:51,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1821150056, now seen corresponding path program 1 times [2020-07-21 01:46:51,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:51,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411011765] [2020-07-21 01:46:51,361 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:51,440 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:51,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:51,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:46:51,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:51,504 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:51,507 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:51,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:51,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:51,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411011765] [2020-07-21 01:46:51,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:51,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 01:46:51,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340086701] [2020-07-21 01:46:51,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:46:51,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:51,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:46:51,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:46:51,537 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand 6 states. [2020-07-21 01:46:51,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:51,665 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2020-07-21 01:46:51,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:46:51,666 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-07-21 01:46:51,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:51,668 INFO L225 Difference]: With dead ends: 80 [2020-07-21 01:46:51,668 INFO L226 Difference]: Without dead ends: 78 [2020-07-21 01:46:51,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:46:51,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-07-21 01:46:51,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-07-21 01:46:51,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-07-21 01:46:51,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2020-07-21 01:46:51,692 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 20 [2020-07-21 01:46:51,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:51,697 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2020-07-21 01:46:51,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:46:51,698 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2020-07-21 01:46:51,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-21 01:46:51,699 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:51,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:51,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:51,914 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]=== [2020-07-21 01:46:51,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:51,915 INFO L82 PathProgramCache]: Analyzing trace with hash 2073610827, now seen corresponding path program 1 times [2020-07-21 01:46:51,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:51,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805345336] [2020-07-21 01:46:51,917 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:51,962 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:51,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:51,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 01:46:51,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:52,004 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:52,009 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:52,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:52,029 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:52,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805345336] [2020-07-21 01:46:52,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:52,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 01:46:52,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572160750] [2020-07-21 01:46:52,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 01:46:52,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:52,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 01:46:52,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 01:46:52,034 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand 4 states. [2020-07-21 01:46:52,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:52,151 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2020-07-21 01:46:52,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 01:46:52,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-07-21 01:46:52,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:52,154 INFO L225 Difference]: With dead ends: 101 [2020-07-21 01:46:52,154 INFO L226 Difference]: Without dead ends: 99 [2020-07-21 01:46:52,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:46:52,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-07-21 01:46:52,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 76. [2020-07-21 01:46:52,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-21 01:46:52,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2020-07-21 01:46:52,165 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 22 [2020-07-21 01:46:52,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:52,165 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2020-07-21 01:46:52,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 01:46:52,165 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2020-07-21 01:46:52,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-21 01:46:52,166 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:52,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:52,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:52,381 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]=== [2020-07-21 01:46:52,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:52,382 INFO L82 PathProgramCache]: Analyzing trace with hash -142570686, now seen corresponding path program 1 times [2020-07-21 01:46:52,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:52,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [367253534] [2020-07-21 01:46:52,383 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:52,436 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:52,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:52,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 01:46:52,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:52,458 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:52,460 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:52,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:52,469 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:52,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [367253534] [2020-07-21 01:46:52,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:52,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:46:52,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895278035] [2020-07-21 01:46:52,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:46:52,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:52,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:46:52,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:46:52,471 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 5 states. [2020-07-21 01:46:52,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:52,558 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-07-21 01:46:52,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 01:46:52,559 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-07-21 01:46:52,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:52,560 INFO L225 Difference]: With dead ends: 76 [2020-07-21 01:46:52,560 INFO L226 Difference]: Without dead ends: 74 [2020-07-21 01:46:52,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:46:52,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-07-21 01:46:52,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-07-21 01:46:52,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-07-21 01:46:52,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2020-07-21 01:46:52,569 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 23 [2020-07-21 01:46:52,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:52,569 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2020-07-21 01:46:52,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:46:52,570 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2020-07-21 01:46:52,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-21 01:46:52,571 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:52,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:52,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:52,772 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]=== [2020-07-21 01:46:52,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:52,773 INFO L82 PathProgramCache]: Analyzing trace with hash 402497124, now seen corresponding path program 1 times [2020-07-21 01:46:52,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:52,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1002564032] [2020-07-21 01:46:52,773 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:52,833 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:52,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:52,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 01:46:52,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:52,866 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:52,871 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:52,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:52,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:52,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1002564032] [2020-07-21 01:46:52,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:52,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 01:46:52,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702026945] [2020-07-21 01:46:52,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 01:46:52,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:52,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 01:46:52,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 01:46:52,892 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 4 states. [2020-07-21 01:46:53,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:53,052 INFO L93 Difference]: Finished difference Result 158 states and 166 transitions. [2020-07-21 01:46:53,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 01:46:53,053 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-07-21 01:46:53,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:53,055 INFO L225 Difference]: With dead ends: 158 [2020-07-21 01:46:53,055 INFO L226 Difference]: Without dead ends: 156 [2020-07-21 01:46:53,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:46:53,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-07-21 01:46:53,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 77. [2020-07-21 01:46:53,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-07-21 01:46:53,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-07-21 01:46:53,085 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 26 [2020-07-21 01:46:53,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:53,086 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-07-21 01:46:53,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 01:46:53,088 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-07-21 01:46:53,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-21 01:46:53,089 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:53,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:53,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:53,305 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]=== [2020-07-21 01:46:53,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:53,306 INFO L82 PathProgramCache]: Analyzing trace with hash 406230933, now seen corresponding path program 1 times [2020-07-21 01:46:53,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:53,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [948049712] [2020-07-21 01:46:53,308 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:53,347 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:53,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:53,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 01:46:53,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:53,366 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:53,368 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:53,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:53,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:53,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [948049712] [2020-07-21 01:46:53,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:53,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 01:46:53,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548414141] [2020-07-21 01:46:53,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 01:46:53,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:53,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 01:46:53,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 01:46:53,392 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 4 states. [2020-07-21 01:46:53,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:53,464 INFO L93 Difference]: Finished difference Result 124 states and 130 transitions. [2020-07-21 01:46:53,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 01:46:53,464 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-07-21 01:46:53,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:53,467 INFO L225 Difference]: With dead ends: 124 [2020-07-21 01:46:53,467 INFO L226 Difference]: Without dead ends: 122 [2020-07-21 01:46:53,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:46:53,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-07-21 01:46:53,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 79. [2020-07-21 01:46:53,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-07-21 01:46:53,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-07-21 01:46:53,486 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 26 [2020-07-21 01:46:53,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:53,488 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-07-21 01:46:53,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 01:46:53,488 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-07-21 01:46:53,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-21 01:46:53,489 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:53,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:53,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:53,702 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]=== [2020-07-21 01:46:53,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:53,703 INFO L82 PathProgramCache]: Analyzing trace with hash -407487796, now seen corresponding path program 1 times [2020-07-21 01:46:53,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:53,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445901747] [2020-07-21 01:46:53,705 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:53,748 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:53,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:53,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 01:46:53,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:53,769 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:53,777 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:53,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:53,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:53,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [445901747] [2020-07-21 01:46:53,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:53,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:46:53,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924316857] [2020-07-21 01:46:53,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:46:53,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:53,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:46:53,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:46:53,799 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 5 states. [2020-07-21 01:46:53,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:53,934 INFO L93 Difference]: Finished difference Result 121 states and 127 transitions. [2020-07-21 01:46:53,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 01:46:53,934 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-07-21 01:46:53,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:53,936 INFO L225 Difference]: With dead ends: 121 [2020-07-21 01:46:53,936 INFO L226 Difference]: Without dead ends: 119 [2020-07-21 01:46:53,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:46:53,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-21 01:46:53,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2020-07-21 01:46:53,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-07-21 01:46:53,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-07-21 01:46:53,961 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 27 [2020-07-21 01:46:53,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:53,961 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-07-21 01:46:53,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:46:53,962 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-07-21 01:46:53,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-21 01:46:53,966 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:53,967 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:54,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:54,182 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]=== [2020-07-21 01:46:54,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:54,183 INFO L82 PathProgramCache]: Analyzing trace with hash -291739827, now seen corresponding path program 1 times [2020-07-21 01:46:54,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:54,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476502480] [2020-07-21 01:46:54,184 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:54,233 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:54,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:54,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 01:46:54,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:54,263 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:54,269 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:54,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:54,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:54,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1476502480] [2020-07-21 01:46:54,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:54,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:46:54,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492037740] [2020-07-21 01:46:54,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:46:54,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:54,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:46:54,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:46:54,286 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 5 states. [2020-07-21 01:46:54,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:54,350 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-07-21 01:46:54,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 01:46:54,350 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-07-21 01:46:54,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:54,352 INFO L225 Difference]: With dead ends: 77 [2020-07-21 01:46:54,352 INFO L226 Difference]: Without dead ends: 75 [2020-07-21 01:46:54,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:46:54,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-07-21 01:46:54,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-07-21 01:46:54,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-07-21 01:46:54,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2020-07-21 01:46:54,364 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 27 [2020-07-21 01:46:54,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:54,364 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2020-07-21 01:46:54,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:46:54,365 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2020-07-21 01:46:54,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-21 01:46:54,367 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:54,367 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:54,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:54,568 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]=== [2020-07-21 01:46:54,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:54,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1188998893, now seen corresponding path program 1 times [2020-07-21 01:46:54,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:54,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1199563226] [2020-07-21 01:46:54,571 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:54,607 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:54,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:54,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 01:46:54,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:54,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:54,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:54,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1199563226] [2020-07-21 01:46:54,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:54,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:46:54,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405976709] [2020-07-21 01:46:54,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:46:54,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:54,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:46:54,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:46:54,632 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 3 states. [2020-07-21 01:46:54,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:54,689 INFO L93 Difference]: Finished difference Result 115 states and 121 transitions. [2020-07-21 01:46:54,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:46:54,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2020-07-21 01:46:54,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:54,691 INFO L225 Difference]: With dead ends: 115 [2020-07-21 01:46:54,691 INFO L226 Difference]: Without dead ends: 75 [2020-07-21 01:46:54,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:46:54,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-07-21 01:46:54,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-07-21 01:46:54,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-07-21 01:46:54,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2020-07-21 01:46:54,698 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 29 [2020-07-21 01:46:54,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:54,698 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2020-07-21 01:46:54,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:46:54,699 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2020-07-21 01:46:54,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-21 01:46:54,699 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:54,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:54,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:54,913 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]=== [2020-07-21 01:46:54,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:54,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1640998784, now seen corresponding path program 1 times [2020-07-21 01:46:54,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:54,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332359702] [2020-07-21 01:46:54,916 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:54,954 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:54,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:54,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:46:54,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:54,980 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:54,982 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:46:55,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:55,013 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:55,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332359702] [2020-07-21 01:46:55,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:55,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:46:55,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997509490] [2020-07-21 01:46:55,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:46:55,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:55,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:46:55,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:46:55,017 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand 5 states. [2020-07-21 01:46:55,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:55,092 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-07-21 01:46:55,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:46:55,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-21 01:46:55,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:55,094 INFO L225 Difference]: With dead ends: 76 [2020-07-21 01:46:55,094 INFO L226 Difference]: Without dead ends: 74 [2020-07-21 01:46:55,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:46:55,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-07-21 01:46:55,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2020-07-21 01:46:55,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-07-21 01:46:55,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2020-07-21 01:46:55,104 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 30 [2020-07-21 01:46:55,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:55,105 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2020-07-21 01:46:55,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:46:55,105 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2020-07-21 01:46:55,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-21 01:46:55,110 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:55,110 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:55,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:55,326 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]=== [2020-07-21 01:46:55,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:55,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1892106755, now seen corresponding path program 1 times [2020-07-21 01:46:55,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:55,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575395561] [2020-07-21 01:46:55,328 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:55,371 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:55,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:55,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:46:55,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:55,403 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:55,405 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:55,412 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 01:46:55,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:46:55,421 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:46:55,463 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 01:46:55,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1575395561] [2020-07-21 01:46:55,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:46:55,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-07-21 01:46:55,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180547079] [2020-07-21 01:46:55,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:46:55,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:55,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:46:55,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:46:55,465 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 5 states. [2020-07-21 01:46:55,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:55,576 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2020-07-21 01:46:55,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:46:55,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-21 01:46:55,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:55,579 INFO L225 Difference]: With dead ends: 111 [2020-07-21 01:46:55,579 INFO L226 Difference]: Without dead ends: 109 [2020-07-21 01:46:55,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 51 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:46:55,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-07-21 01:46:55,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 70. [2020-07-21 01:46:55,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-07-21 01:46:55,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2020-07-21 01:46:55,586 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 30 [2020-07-21 01:46:55,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:55,586 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2020-07-21 01:46:55,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:46:55,586 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2020-07-21 01:46:55,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-21 01:46:55,587 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:55,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:55,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:55,793 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]=== [2020-07-21 01:46:55,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:55,794 INFO L82 PathProgramCache]: Analyzing trace with hash 668648404, now seen corresponding path program 1 times [2020-07-21 01:46:55,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:55,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013019872] [2020-07-21 01:46:55,796 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:55,836 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:55,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:55,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 01:46:55,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:55,854 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:55,855 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:55,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:55,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:55,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1013019872] [2020-07-21 01:46:55,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:55,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:46:55,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202834584] [2020-07-21 01:46:55,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:46:55,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:55,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:46:55,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:46:55,870 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand 5 states. [2020-07-21 01:46:55,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:55,947 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-07-21 01:46:55,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 01:46:55,947 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-07-21 01:46:55,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:55,950 INFO L225 Difference]: With dead ends: 70 [2020-07-21 01:46:55,950 INFO L226 Difference]: Without dead ends: 68 [2020-07-21 01:46:55,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:46:55,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-21 01:46:55,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-07-21 01:46:55,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-07-21 01:46:55,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2020-07-21 01:46:55,956 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 31 [2020-07-21 01:46:55,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:55,958 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2020-07-21 01:46:55,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:46:55,958 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2020-07-21 01:46:55,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-21 01:46:55,970 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:55,970 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:56,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:56,181 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]=== [2020-07-21 01:46:56,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:56,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1470784207, now seen corresponding path program 1 times [2020-07-21 01:46:56,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:56,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [333726449] [2020-07-21 01:46:56,183 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:56,222 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:56,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:56,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:46:56,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:56,264 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:56,269 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:56,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 01:46:56,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:46:56,284 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:46:56,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 01:46:56,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [333726449] [2020-07-21 01:46:56,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:46:56,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-07-21 01:46:56,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917311260] [2020-07-21 01:46:56,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:46:56,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:56,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:46:56,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:46:56,324 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 5 states. [2020-07-21 01:46:56,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:56,402 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2020-07-21 01:46:56,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:46:56,403 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-07-21 01:46:56,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:56,404 INFO L225 Difference]: With dead ends: 69 [2020-07-21 01:46:56,404 INFO L226 Difference]: Without dead ends: 67 [2020-07-21 01:46:56,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:46:56,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-07-21 01:46:56,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 62. [2020-07-21 01:46:56,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-07-21 01:46:56,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2020-07-21 01:46:56,409 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 31 [2020-07-21 01:46:56,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:56,409 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2020-07-21 01:46:56,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:46:56,409 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2020-07-21 01:46:56,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-21 01:46:56,410 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:56,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:56,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:56,611 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]=== [2020-07-21 01:46:56,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:56,612 INFO L82 PathProgramCache]: Analyzing trace with hash -350608983, now seen corresponding path program 1 times [2020-07-21 01:46:56,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:56,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [94175486] [2020-07-21 01:46:56,613 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:56,653 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:56,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:56,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:46:56,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:56,690 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:56,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:56,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:56,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [94175486] [2020-07-21 01:46:56,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:56,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:46:56,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096650586] [2020-07-21 01:46:56,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:46:56,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:56,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:46:56,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:46:56,707 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand 5 states. [2020-07-21 01:46:56,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:56,790 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2020-07-21 01:46:56,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:46:56,791 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-07-21 01:46:56,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:56,792 INFO L225 Difference]: With dead ends: 63 [2020-07-21 01:46:56,792 INFO L226 Difference]: Without dead ends: 61 [2020-07-21 01:46:56,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:46:56,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-07-21 01:46:56,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2020-07-21 01:46:56,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-07-21 01:46:56,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2020-07-21 01:46:56,798 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 34 [2020-07-21 01:46:56,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:56,798 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2020-07-21 01:46:56,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:46:56,799 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2020-07-21 01:46:56,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-21 01:46:56,801 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:56,801 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:57,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:57,002 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]=== [2020-07-21 01:46:57,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:57,002 INFO L82 PathProgramCache]: Analyzing trace with hash 2016026591, now seen corresponding path program 1 times [2020-07-21 01:46:57,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:57,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859228736] [2020-07-21 01:46:57,003 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:57,041 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:57,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:57,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:46:57,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:57,077 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:57,079 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:57,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:57,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:57,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859228736] [2020-07-21 01:46:57,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:57,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 01:46:57,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875809186] [2020-07-21 01:46:57,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:46:57,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:57,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:46:57,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:46:57,091 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand 6 states. [2020-07-21 01:46:57,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:57,190 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2020-07-21 01:46:57,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:46:57,191 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-07-21 01:46:57,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:57,192 INFO L225 Difference]: With dead ends: 71 [2020-07-21 01:46:57,192 INFO L226 Difference]: Without dead ends: 69 [2020-07-21 01:46:57,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:46:57,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-07-21 01:46:57,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 58. [2020-07-21 01:46:57,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-07-21 01:46:57,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2020-07-21 01:46:57,197 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 35 [2020-07-21 01:46:57,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:57,197 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2020-07-21 01:46:57,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:46:57,197 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-07-21 01:46:57,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-21 01:46:57,198 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:57,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:57,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:57,409 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]=== [2020-07-21 01:46:57,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:57,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1371399406, now seen corresponding path program 1 times [2020-07-21 01:46:57,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:57,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648436637] [2020-07-21 01:46:57,410 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:57,448 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:57,448 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:57,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:46:57,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:57,475 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:57,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:57,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:57,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648436637] [2020-07-21 01:46:57,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:57,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:46:57,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128793023] [2020-07-21 01:46:57,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:46:57,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:57,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:46:57,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:46:57,495 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 5 states. [2020-07-21 01:46:57,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:57,570 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2020-07-21 01:46:57,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:46:57,570 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-07-21 01:46:57,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:57,571 INFO L225 Difference]: With dead ends: 60 [2020-07-21 01:46:57,571 INFO L226 Difference]: Without dead ends: 58 [2020-07-21 01:46:57,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:46:57,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-07-21 01:46:57,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-07-21 01:46:57,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-07-21 01:46:57,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2020-07-21 01:46:57,577 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 38 [2020-07-21 01:46:57,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:57,578 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2020-07-21 01:46:57,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:46:57,578 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2020-07-21 01:46:57,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-07-21 01:46:57,579 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:57,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:57,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:57,780 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]=== [2020-07-21 01:46:57,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:57,781 INFO L82 PathProgramCache]: Analyzing trace with hash 436294569, now seen corresponding path program 1 times [2020-07-21 01:46:57,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:57,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477157091] [2020-07-21 01:46:57,782 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:57,839 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:57,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:57,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:46:57,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:57,868 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:57,869 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:57,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:57,879 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:57,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477157091] [2020-07-21 01:46:57,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:57,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 01:46:57,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65523405] [2020-07-21 01:46:57,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:46:57,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:57,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:46:57,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:46:57,883 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand 6 states. [2020-07-21 01:46:57,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:57,990 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-07-21 01:46:57,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:46:57,991 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-07-21 01:46:57,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:57,992 INFO L225 Difference]: With dead ends: 70 [2020-07-21 01:46:57,992 INFO L226 Difference]: Without dead ends: 68 [2020-07-21 01:46:57,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:46:57,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-21 01:46:57,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2020-07-21 01:46:57,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-07-21 01:46:57,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2020-07-21 01:46:57,997 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 39 [2020-07-21 01:46:57,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:57,997 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2020-07-21 01:46:57,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:46:57,998 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2020-07-21 01:46:57,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-07-21 01:46:57,998 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:57,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:58,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:58,211 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]=== [2020-07-21 01:46:58,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:58,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1627614740, now seen corresponding path program 1 times [2020-07-21 01:46:58,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:58,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65797142] [2020-07-21 01:46:58,212 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:58,254 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:58,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:58,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 01:46:58,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:58,270 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:58,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:58,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:58,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65797142] [2020-07-21 01:46:58,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:58,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 01:46:58,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032643738] [2020-07-21 01:46:58,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 01:46:58,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:58,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 01:46:58,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-21 01:46:58,282 INFO L87 Difference]: Start difference. First operand 54 states and 56 transitions. Second operand 4 states. [2020-07-21 01:46:58,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:58,322 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2020-07-21 01:46:58,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 01:46:58,323 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-07-21 01:46:58,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:58,324 INFO L225 Difference]: With dead ends: 65 [2020-07-21 01:46:58,324 INFO L226 Difference]: Without dead ends: 63 [2020-07-21 01:46:58,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:46:58,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-07-21 01:46:58,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 52. [2020-07-21 01:46:58,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-07-21 01:46:58,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2020-07-21 01:46:58,329 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 41 [2020-07-21 01:46:58,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:58,329 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2020-07-21 01:46:58,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 01:46:58,329 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2020-07-21 01:46:58,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-21 01:46:58,330 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:58,330 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:58,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:58,531 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:46:58,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:58,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1083553822, now seen corresponding path program 1 times [2020-07-21 01:46:58,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:58,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880278035] [2020-07-21 01:46:58,532 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:58,574 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:58,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:58,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 01:46:58,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:58,604 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:58,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:58,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:58,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880278035] [2020-07-21 01:46:58,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:58,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:46:58,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363799207] [2020-07-21 01:46:58,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:46:58,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:58,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:46:58,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:46:58,617 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand 5 states. [2020-07-21 01:46:58,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:58,643 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2020-07-21 01:46:58,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 01:46:58,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-07-21 01:46:58,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:58,644 INFO L225 Difference]: With dead ends: 59 [2020-07-21 01:46:58,644 INFO L226 Difference]: Without dead ends: 57 [2020-07-21 01:46:58,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:46:58,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-07-21 01:46:58,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2020-07-21 01:46:58,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-07-21 01:46:58,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2020-07-21 01:46:58,649 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 42 [2020-07-21 01:46:58,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:58,649 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2020-07-21 01:46:58,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:46:58,649 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2020-07-21 01:46:58,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-21 01:46:58,650 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:58,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:58,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:58,860 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:46:58,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:58,861 INFO L82 PathProgramCache]: Analyzing trace with hash -769566670, now seen corresponding path program 1 times [2020-07-21 01:46:58,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:58,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808655524] [2020-07-21 01:46:58,862 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:58,902 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:58,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:58,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 01:46:58,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:58,926 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:58,927 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:46:58,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:58,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:58,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808655524] [2020-07-21 01:46:58,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:58,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:46:58,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365664208] [2020-07-21 01:46:58,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:46:58,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:58,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:46:58,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:46:58,940 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand 5 states. [2020-07-21 01:46:59,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:59,010 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2020-07-21 01:46:59,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:46:59,011 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2020-07-21 01:46:59,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:59,012 INFO L225 Difference]: With dead ends: 59 [2020-07-21 01:46:59,012 INFO L226 Difference]: Without dead ends: 57 [2020-07-21 01:46:59,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:46:59,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-07-21 01:46:59,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 48. [2020-07-21 01:46:59,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-07-21 01:46:59,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2020-07-21 01:46:59,017 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 43 [2020-07-21 01:46:59,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:59,017 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2020-07-21 01:46:59,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:46:59,018 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2020-07-21 01:46:59,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-21 01:46:59,018 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:46:59,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:46:59,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:59,227 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:46:59,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:46:59,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1913240228, now seen corresponding path program 1 times [2020-07-21 01:46:59,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:46:59,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1769348937] [2020-07-21 01:46:59,230 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:59,275 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:46:59,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:46:59,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:46:59,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:46:59,295 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:59,298 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:46:59,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:46:59,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:46:59,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1769348937] [2020-07-21 01:46:59,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:46:59,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 01:46:59,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261518194] [2020-07-21 01:46:59,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:46:59,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:46:59,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:46:59,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:46:59,318 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand 6 states. [2020-07-21 01:46:59,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:46:59,433 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2020-07-21 01:46:59,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:46:59,434 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-07-21 01:46:59,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:46:59,435 INFO L225 Difference]: With dead ends: 68 [2020-07-21 01:46:59,435 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:46:59,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:46:59,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:46:59,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:46:59,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:46:59,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:46:59,437 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2020-07-21 01:46:59,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:46:59,437 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:46:59,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:46:59,437 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:46:59,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:46:59,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:46:59,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:46:59,807 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 27 [2020-07-21 01:46:59,987 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2020-07-21 01:47:00,408 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 46 [2020-07-21 01:47:00,795 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2020-07-21 01:47:00,798 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:47:00,798 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:47:00,799 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:47:00,799 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:47:00,799 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 01:47:00,799 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:47:00,799 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:47:00,799 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-07-21 01:47:00,799 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-21 01:47:00,799 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-07-21 01:47:00,799 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-07-21 01:47:00,799 INFO L268 CegarLoopResult]: For program point L192(lines 192 352) no Hoare annotation was computed. [2020-07-21 01:47:00,799 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2020-07-21 01:47:00,799 INFO L268 CegarLoopResult]: For program point L382(lines 382 391) no Hoare annotation was computed. [2020-07-21 01:47:00,800 INFO L268 CegarLoopResult]: For program point L93(lines 93 410) no Hoare annotation was computed. [2020-07-21 01:47:00,800 INFO L268 CegarLoopResult]: For program point L27(lines 27 435) no Hoare annotation was computed. [2020-07-21 01:47:00,800 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 437) no Hoare annotation was computed. [2020-07-21 01:47:00,800 INFO L268 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-07-21 01:47:00,800 INFO L264 CegarLoopResult]: At program point L399(lines 129 400) the Hoare annotation is: (and (<= 1 main_~__VERIFIER_assert__cond~1) (<= 0 main_~main__scheme~0) (<= (+ main_~main__cp~0 1) main_~main__urilen~0) (<= 1 main_~__VERIFIER_assert__cond~3) (not (= 0 main_~main__scheme~0)) (<= 1 main_~main__cp~0) (<= 1 main_~__VERIFIER_assert__cond~2) (<= 1 main_~__VERIFIER_assert__cond~0)) [2020-07-21 01:47:00,800 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 253) no Hoare annotation was computed. [2020-07-21 01:47:00,800 INFO L268 CegarLoopResult]: For program point L102(lines 102 409) no Hoare annotation was computed. [2020-07-21 01:47:00,800 INFO L268 CegarLoopResult]: For program point L69(lines 69 414) no Hoare annotation was computed. [2020-07-21 01:47:00,800 INFO L264 CegarLoopResult]: At program point L325(lines 260 326) the Hoare annotation is: (and (let ((.cse17 (+ main_~main__cp~0 1))) (let ((.cse0 (<= 0 main_~main__scheme~0)) (.cse1 (not (= .cse17 main_~main__urilen~0))) (.cse2 (<= 1 main_~__VERIFIER_assert__cond~4)) (.cse3 (<= 1 main_~__VERIFIER_assert__cond~3)) (.cse4 (<= 1 main_~__VERIFIER_assert__cond~0)) (.cse5 (<= 1 main_~__VERIFIER_assert__cond~5)) (.cse6 (<= 1 main_~__VERIFIER_assert__cond~1)) (.cse7 (<= 1 main_~__VERIFIER_assert__cond~6)) (.cse8 (<= 1 main_~__VERIFIER_assert__cond~10)) (.cse9 (<= .cse17 main_~main__urilen~0)) (.cse10 (<= 1 main_~__VERIFIER_assert__cond~8)) (.cse11 (not (= 0 main_~main__scheme~0))) (.cse12 (<= 1 main_~main__cp~0)) (.cse13 (<= 1 main_~__VERIFIER_assert__cond~7)) (.cse14 (<= 1 main_~__VERIFIER_assert__cond~2)) (.cse15 (<= 1 main_~__VERIFIER_assert__cond~9)) (.cse16 (<= 1 main_~__VERIFIER_assert__cond~11))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 main_~__VERIFIER_assert__cond~12) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 .cse1 (< (+ main_~main__c~0 1) main_~main__tokenlen~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16)))) (<= 0 main_~main__c~0)) [2020-07-21 01:47:00,801 INFO L268 CegarLoopResult]: For program point L292(lines 292 316) no Hoare annotation was computed. [2020-07-21 01:47:00,801 INFO L268 CegarLoopResult]: For program point L160(lines 160 357) no Hoare annotation was computed. [2020-07-21 01:47:00,801 INFO L268 CegarLoopResult]: For program point L61(lines 61 420) no Hoare annotation was computed. [2020-07-21 01:47:00,801 INFO L268 CegarLoopResult]: For program point L251(lines 251 327) no Hoare annotation was computed. [2020-07-21 01:47:00,801 INFO L268 CegarLoopResult]: For program point L185(lines 185 353) no Hoare annotation was computed. [2020-07-21 01:47:00,801 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-07-21 01:47:00,801 INFO L264 CegarLoopResult]: At program point L408(lines 102 409) the Hoare annotation is: (<= 1 main_~__VERIFIER_assert__cond~0) [2020-07-21 01:47:00,801 INFO L268 CegarLoopResult]: For program point L210(lines 210 344) no Hoare annotation was computed. [2020-07-21 01:47:00,801 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-07-21 01:47:00,801 INFO L268 CegarLoopResult]: For program point L45(lines 45 432) no Hoare annotation was computed. [2020-07-21 01:47:00,802 INFO L268 CegarLoopResult]: For program point L268(lines 268 320) no Hoare annotation was computed. [2020-07-21 01:47:00,802 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 294) no Hoare annotation was computed. [2020-07-21 01:47:00,802 INFO L268 CegarLoopResult]: For program point L202(lines 202 351) no Hoare annotation was computed. [2020-07-21 01:47:00,802 INFO L268 CegarLoopResult]: For program point L260(lines 260 326) no Hoare annotation was computed. [2020-07-21 01:47:00,802 INFO L268 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-07-21 01:47:00,802 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-07-21 01:47:00,802 INFO L268 CegarLoopResult]: For program point L153(lines 153 358) no Hoare annotation was computed. [2020-07-21 01:47:00,802 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2020-07-21 01:47:00,803 INFO L268 CegarLoopResult]: For program point L21(lines 21 436) no Hoare annotation was computed. [2020-07-21 01:47:00,803 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 437) no Hoare annotation was computed. [2020-07-21 01:47:00,803 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 282) no Hoare annotation was computed. [2020-07-21 01:47:00,803 INFO L268 CegarLoopResult]: For program point L294(line 294) no Hoare annotation was computed. [2020-07-21 01:47:00,803 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2020-07-21 01:47:00,803 INFO L268 CegarLoopResult]: For program point L63(lines 63 415) no Hoare annotation was computed. [2020-07-21 01:47:00,804 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 437) the Hoare annotation is: true [2020-07-21 01:47:00,804 INFO L268 CegarLoopResult]: For program point L253(line 253) no Hoare annotation was computed. [2020-07-21 01:47:00,804 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 01:47:00,804 INFO L268 CegarLoopResult]: For program point L121(lines 121 401) no Hoare annotation was computed. [2020-07-21 01:47:00,804 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-07-21 01:47:00,804 INFO L268 CegarLoopResult]: For program point L270(line 270) no Hoare annotation was computed. [2020-07-21 01:47:00,804 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 212) no Hoare annotation was computed. [2020-07-21 01:47:00,804 INFO L268 CegarLoopResult]: For program point L39(lines 39 433) no Hoare annotation was computed. [2020-07-21 01:47:00,805 INFO L268 CegarLoopResult]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 372) no Hoare annotation was computed. [2020-07-21 01:47:00,805 INFO L268 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-07-21 01:47:00,805 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-07-21 01:47:00,805 INFO L268 CegarLoopResult]: For program point L370(lines 370 393) no Hoare annotation was computed. [2020-07-21 01:47:00,805 INFO L268 CegarLoopResult]: For program point L81(lines 81 412) no Hoare annotation was computed. [2020-07-21 01:47:00,805 INFO L268 CegarLoopResult]: For program point L304(lines 304 314) no Hoare annotation was computed. [2020-07-21 01:47:00,805 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 306) no Hoare annotation was computed. [2020-07-21 01:47:00,805 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 111) no Hoare annotation was computed. [2020-07-21 01:47:00,806 INFO L268 CegarLoopResult]: For program point L222(lines 222 342) no Hoare annotation was computed. [2020-07-21 01:47:00,806 INFO L268 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-07-21 01:47:00,806 INFO L268 CegarLoopResult]: For program point L57(lines 57 430) no Hoare annotation was computed. [2020-07-21 01:47:00,806 INFO L264 CegarLoopResult]: At program point L313(lines 228 342) the Hoare annotation is: (let ((.cse0 (+ main_~main__cp~0 1))) (and (<= 0 main_~main__scheme~0) (let ((.cse1 (<= 1 main_~__VERIFIER_assert__cond~3)) (.cse2 (<= 1 main_~__VERIFIER_assert__cond~4)) (.cse3 (<= 1 main_~__VERIFIER_assert__cond~0)) (.cse4 (<= 0 main_~main__cp~0)) (.cse5 (<= 1 main_~__VERIFIER_assert__cond~5)) (.cse6 (<= 1 main_~__VERIFIER_assert__cond~1)) (.cse7 (<= 1 main_~__VERIFIER_assert__cond~6)) (.cse8 (<= 1 main_~__VERIFIER_assert__cond~8)) (.cse9 (not (= 0 main_~main__scheme~0))) (.cse10 (<= 1 main_~__VERIFIER_assert__cond~7)) (.cse11 (<= 1 main_~__VERIFIER_assert__cond~2)) (.cse12 (<= 1 main_~__VERIFIER_assert__cond~9))) (or (and (not (= .cse0 main_~main__urilen~0)) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (<= 1 main_~__VERIFIER_assert__cond~10) .cse8 .cse9 .cse10 .cse11 .cse12))) (<= .cse0 main_~main__urilen~0) (<= 0 main_~main__c~0) (<= 1 main_~main__cp~0))) [2020-07-21 01:47:00,806 INFO L268 CegarLoopResult]: For program point L280(lines 280 318) no Hoare annotation was computed. [2020-07-21 01:47:00,806 INFO L268 CegarLoopResult]: For program point L239(lines 239 329) no Hoare annotation was computed. [2020-07-21 01:47:00,806 INFO L268 CegarLoopResult]: For program point L173(lines 173 355) no Hoare annotation was computed. [2020-07-21 01:47:00,807 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 241) no Hoare annotation was computed. [2020-07-21 01:47:00,807 INFO L268 CegarLoopResult]: For program point L33(lines 33 434) no Hoare annotation was computed. [2020-07-21 01:47:00,807 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2020-07-21 01:47:00,807 INFO L268 CegarLoopResult]: For program point L372(line 372) no Hoare annotation was computed. [2020-07-21 01:47:00,807 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-07-21 01:47:00,807 INFO L268 CegarLoopResult]: For program point L306(line 306) no Hoare annotation was computed. [2020-07-21 01:47:00,807 INFO L268 CegarLoopResult]: For program point L141(lines 141 360) no Hoare annotation was computed. [2020-07-21 01:47:00,807 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 224) no Hoare annotation was computed. [2020-07-21 01:47:00,808 INFO L268 CegarLoopResult]: For program point L232(lines 232 336) no Hoare annotation was computed. [2020-07-21 01:47:00,808 INFO L268 CegarLoopResult]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2020-07-21 01:47:00,808 INFO L268 CegarLoopResult]: For program point L133(lines 133 395) no Hoare annotation was computed. [2020-07-21 01:47:00,808 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-07-21 01:47:00,808 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 143) no Hoare annotation was computed. [2020-07-21 01:47:00,808 INFO L268 CegarLoopResult]: For program point L59(lines 59 425) no Hoare annotation was computed. [2020-07-21 01:47:00,808 INFO L268 CegarLoopResult]: For program point L282(line 282) no Hoare annotation was computed. [2020-07-21 01:47:00,808 INFO L268 CegarLoopResult]: For program point L51(lines 51 431) no Hoare annotation was computed. [2020-07-21 01:47:00,808 INFO L268 CegarLoopResult]: For program point L241(line 241) no Hoare annotation was computed. [2020-07-21 01:47:00,809 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 270) no Hoare annotation was computed. [2020-07-21 01:47:00,809 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 01:47:00,809 INFO L268 CegarLoopResult]: For program point L109(lines 109 403) no Hoare annotation was computed. [2020-07-21 01:47:00,809 INFO L264 CegarLoopResult]: At program point L390(lines 127 401) the Hoare annotation is: (and (<= 1 main_~__VERIFIER_assert__cond~1) (<= 0 main_~main__scheme~0) (<= (+ main_~main__cp~0 1) main_~main__urilen~0) (<= 1 main_~__VERIFIER_assert__cond~3) (not (= 0 main_~main__scheme~0)) (<= 1 main_~main__cp~0) (<= 1 main_~__VERIFIER_assert__cond~2) (<= 1 main_~__VERIFIER_assert__cond~0)) [2020-07-21 01:47:00,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:47:00 BoogieIcfgContainer [2020-07-21 01:47:00,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:47:00,836 INFO L168 Benchmark]: Toolchain (without parser) took 11293.12 ms. Allocated memory was 137.9 MB in the beginning and 278.4 MB in the end (delta: 140.5 MB). Free memory was 102.1 MB in the beginning and 98.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 148.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:47:00,836 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 01:47:00,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.46 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 101.7 MB in the beginning and 180.8 MB in the end (delta: -79.0 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2020-07-21 01:47:00,838 INFO L168 Benchmark]: Boogie Preprocessor took 76.25 ms. Allocated memory is still 202.4 MB. Free memory was 180.8 MB in the beginning and 178.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:47:00,838 INFO L168 Benchmark]: RCFGBuilder took 588.72 ms. Allocated memory is still 202.4 MB. Free memory was 178.6 MB in the beginning and 150.6 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:47:00,839 INFO L168 Benchmark]: TraceAbstraction took 10166.28 ms. Allocated memory was 202.4 MB in the beginning and 278.4 MB in the end (delta: 76.0 MB). Free memory was 150.0 MB in the beginning and 98.8 MB in the end (delta: 51.2 MB). Peak memory consumption was 132.3 MB. Max. memory is 7.1 GB. [2020-07-21 01:47:00,842 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 450.46 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 101.7 MB in the beginning and 180.8 MB in the end (delta: -79.0 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 76.25 ms. Allocated memory is still 202.4 MB. Free memory was 180.8 MB in the beginning and 178.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 588.72 ms. Allocated memory is still 202.4 MB. Free memory was 178.6 MB in the beginning and 150.6 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10166.28 ms. Allocated memory was 202.4 MB in the beginning and 278.4 MB in the end (delta: 76.0 MB). Free memory was 150.0 MB in the beginning and 98.8 MB in the end (delta: 51.2 MB). Peak memory consumption was 132.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 83]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 306]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 372]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 187]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 212]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 282]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 224]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 241]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 294]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 270]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 143]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 253]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 384]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 111]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 155]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 123]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 95]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((((((1 <= __VERIFIER_assert__cond && 0 <= main__scheme) && main__cp + 1 <= main__urilen) && 1 <= __VERIFIER_assert__cond) && !(0 == main__scheme)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: 1 <= __VERIFIER_assert__cond - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: (((0 <= main__scheme && (((((((((((((!(main__cp + 1 == main__urilen) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 0 <= main__cp) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && !(0 == main__scheme)) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) || ((((((((((((1 <= __VERIFIER_assert__cond && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 0 <= main__cp) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && !(0 == main__scheme)) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond))) && main__cp + 1 <= main__urilen) && 0 <= main__c) && 1 <= main__cp - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: ((((((1 <= __VERIFIER_assert__cond && 0 <= main__scheme) && main__cp + 1 <= main__urilen) && 1 <= __VERIFIER_assert__cond) && !(0 == main__scheme)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: ((((((((((((((((((0 <= main__scheme && !(main__cp + 1 == main__urilen)) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && main__cp + 1 <= main__urilen) && 1 <= __VERIFIER_assert__cond) && !(0 == main__scheme)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) || (((((((((((((((((0 <= main__scheme && !(main__cp + 1 == main__urilen)) && main__c + 1 < main__tokenlen) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && main__cp + 1 <= main__urilen) && 1 <= __VERIFIER_assert__cond) && !(0 == main__scheme)) && 1 <= main__cp) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond) && 1 <= __VERIFIER_assert__cond)) && 0 <= main__c - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 91 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.9s, OverallIterations: 21, TraceHistogramMax: 2, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1204 SDtfs, 1986 SDslu, 1311 SDs, 0 SdLazy, 933 SolverSat, 113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 734 GetRequests, 626 SyntacticMatches, 13 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 21 MinimizatonAttempts, 287 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 16 NumberOfFragments, 293 HoareAnnotationTreeSize, 9 FomulaSimplifications, 1698121 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 9 FomulaSimplificationsInter, 52421 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 657 NumberOfCodeBlocks, 657 NumberOfCodeBlocksAsserted, 84 NumberOfCheckSat, 695 ConstructedInterpolants, 0 QuantifiedInterpolants, 62549 SizeOfPredicates, 95 NumberOfNonLiveVariables, 2222 ConjunctsInSsa, 119 ConjunctsInUnsatCore, 23 InterpolantComputations, 19 PerfectInterpolantSequences, 4/10 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...