/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 NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 16:19:28,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 16:19:28,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 16:19:28,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 16:19:28,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 16:19:28,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 16:19:28,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 16:19:28,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 16:19:28,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 16:19:28,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 16:19:28,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 16:19:28,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 16:19:28,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 16:19:28,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 16:19:28,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 16:19:28,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 16:19:28,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 16:19:28,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 16:19:28,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 16:19:28,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 16:19:28,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 16:19:28,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 16:19:28,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 16:19:28,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 16:19:28,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 16:19:28,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 16:19:28,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 16:19:28,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 16:19:28,303 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 16:19:28,353 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:19:28,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:19:28,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:19:28,364 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:19:28,364 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:19:28,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:19:28,365 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:19:28,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:19:28,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:19:28,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:19:28,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:19:28,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:19:28,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:19:28,369 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:19:28,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:19:28,373 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:19:28,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:19:28,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:19:28,374 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:19:28,374 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:19:28,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:19:28,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:19:28,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:19:28,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:19:28,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:19:28,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:19:28,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:19:28,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:19:28,376 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:19:28,378 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 -> NUM_VARIABLES 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 -> 2 [2020-07-21 16:19:28,769 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:19:28,798 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:19:28,804 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:19:28,806 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:19:28,809 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:19:28,812 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test10.c [2020-07-21 16:19:28,932 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d513a906b/ee320a2d1a394421acb03e35dbb1710c/FLAG87d60a12c [2020-07-21 16:19:29,515 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:19:29,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test10.c [2020-07-21 16:19:29,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d513a906b/ee320a2d1a394421acb03e35dbb1710c/FLAG87d60a12c [2020-07-21 16:19:29,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d513a906b/ee320a2d1a394421acb03e35dbb1710c [2020-07-21 16:19:29,862 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:19:29,868 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:19:29,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:19:29,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:19:29,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:19:29,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:19:29" (1/1) ... [2020-07-21 16:19:29,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c4f958d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:29, skipping insertion in model container [2020-07-21 16:19:29,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:19:29" (1/1) ... [2020-07-21 16:19:29,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:19:29,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:19:30,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:19:30,323 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:19:30,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:19:30,394 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:19:30,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:30 WrapperNode [2020-07-21 16:19:30,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:19:30,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:19:30,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:19:30,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:19:30,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:30" (1/1) ... [2020-07-21 16:19:30,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:30" (1/1) ... [2020-07-21 16:19:30,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:30" (1/1) ... [2020-07-21 16:19:30,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:30" (1/1) ... [2020-07-21 16:19:30,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:30" (1/1) ... [2020-07-21 16:19:30,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:30" (1/1) ... [2020-07-21 16:19:30,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:30" (1/1) ... [2020-07-21 16:19:30,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:19:30,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:19:30,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:19:30,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:19:30,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:30" (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 16:19:30,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:19:30,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:19:30,650 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-07-21 16:19:30,650 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:19:30,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:19:30,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 16:19:30,650 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-07-21 16:19:30,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 16:19:30,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 16:19:30,651 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:19:30,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 16:19:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 16:19:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:19:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 16:19:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 16:19:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-21 16:19:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:19:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 16:19:31,134 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:19:31,135 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 16:19:31,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:19:31 BoogieIcfgContainer [2020-07-21 16:19:31,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:19:31,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:19:31,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:19:31,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:19:31,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:19:29" (1/3) ... [2020-07-21 16:19:31,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11aa4f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:19:31, skipping insertion in model container [2020-07-21 16:19:31,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:19:30" (2/3) ... [2020-07-21 16:19:31,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11aa4f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:19:31, skipping insertion in model container [2020-07-21 16:19:31,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:19:31" (3/3) ... [2020-07-21 16:19:31,152 INFO L109 eAbstractionObserver]: Analyzing ICFG test10.c [2020-07-21 16:19:31,168 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:19:31,177 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:19:31,196 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:19:31,232 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:19:31,233 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:19:31,233 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:19:31,233 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:19:31,233 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:19:31,234 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:19:31,234 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:19:31,234 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:19:31,260 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-07-21 16:19:31,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-21 16:19:31,268 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:19:31,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:19:31,270 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:19:31,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:19:31,278 INFO L82 PathProgramCache]: Analyzing trace with hash -320886355, now seen corresponding path program 1 times [2020-07-21 16:19:31,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:19:31,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212261268] [2020-07-21 16:19:31,288 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 16:19:31,687 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:19:31,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:19:31,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 49 conjunts are in the unsatisfiable core [2020-07-21 16:19:31,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:19:31,862 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:31,865 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 96 [2020-07-21 16:19:31,888 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:19:31,892 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:19:31,905 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:19:31,907 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:19:31,910 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:19:31,912 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:19:31,917 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:19:31,919 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:19:31,923 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:32,012 INFO L624 ElimStorePlain]: treesize reduction 110, result has 16.0 percent of original size [2020-07-21 16:19:32,014 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:19:32,014 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:21 [2020-07-21 16:19:32,068 INFO L440 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_32|, |v_#memory_$Pointer$.base_32|], 2=[|v_#memory_$Pointer$.base_26|, |v_#memory_$Pointer$.offset_26|, |v_#memory_$Pointer$.base_27|, |v_#memory_$Pointer$.offset_27|]} [2020-07-21 16:19:32,145 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 15 [2020-07-21 16:19:32,147 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:32,279 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-07-21 16:19:32,280 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:32,346 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 15 [2020-07-21 16:19:32,347 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:32,435 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:32,460 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 16:19:32,466 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:32,561 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:32,580 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 16:19:32,582 INFO L544 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:32,631 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:32,642 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 16:19:32,644 INFO L544 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:32,683 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:32,695 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 16:19:32,697 INFO L544 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:32,728 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:32,728 INFO L544 ElimStorePlain]: Start of recursive call 1: 6 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:19:32,729 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:213, output treesize:55 [2020-07-21 16:19:32,788 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-21 16:19:32,789 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:32,828 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:32,838 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-21 16:19:32,839 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:32,869 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:32,871 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:19:32,871 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:67, output treesize:27 [2020-07-21 16:19:32,974 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 16:19:32,976 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:33,011 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:33,022 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 16:19:33,025 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:33,051 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:33,056 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-21 16:19:33,057 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:79, output treesize:53 [2020-07-21 16:19:33,493 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:19:33,882 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 16:19:33,883 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:19:33,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212261268] [2020-07-21 16:19:33,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:19:33,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 16:19:33,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600434564] [2020-07-21 16:19:33,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 16:19:33,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:19:33,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 16:19:33,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-21 16:19:33,925 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 8 states. [2020-07-21 16:19:34,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:19:34,800 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-07-21 16:19:34,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:19:34,803 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-07-21 16:19:34,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:19:34,819 INFO L225 Difference]: With dead ends: 26 [2020-07-21 16:19:34,819 INFO L226 Difference]: Without dead ends: 15 [2020-07-21 16:19:34,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-07-21 16:19:34,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-21 16:19:34,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-21 16:19:34,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-21 16:19:34,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-07-21 16:19:34,882 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2020-07-21 16:19:34,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:19:34,883 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-07-21 16:19:34,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 16:19:34,884 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-07-21 16:19:34,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-21 16:19:34,885 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:19:34,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:19:35,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:19:35,099 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:19:35,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:19:35,100 INFO L82 PathProgramCache]: Analyzing trace with hash -320884433, now seen corresponding path program 1 times [2020-07-21 16:19:35,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:19:35,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2140560847] [2020-07-21 16:19:35,102 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 16:19:35,415 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:19:35,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:19:35,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 53 conjunts are in the unsatisfiable core [2020-07-21 16:19:35,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:19:35,447 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:35,448 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 122 [2020-07-21 16:19:35,450 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:19:35,454 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:19:35,458 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:19:35,459 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:19:35,463 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 16:19:35,471 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:35,560 INFO L624 ElimStorePlain]: treesize reduction 289, result has 6.8 percent of original size [2020-07-21 16:19:35,560 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:19:35,561 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:21 [2020-07-21 16:19:35,584 INFO L440 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_40|, |v_#memory_$Pointer$.offset_41|], 2=[|v_#memory_$Pointer$.base_35|, |v_#memory_$Pointer$.base_36|, |v_#memory_$Pointer$.offset_36|, |v_#memory_$Pointer$.offset_35|]} [2020-07-21 16:19:35,656 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 15 [2020-07-21 16:19:35,657 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:35,772 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-07-21 16:19:35,773 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:35,793 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 15 [2020-07-21 16:19:35,794 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:35,865 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:35,882 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 16:19:35,884 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:35,945 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:35,955 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 16:19:35,957 INFO L544 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:36,002 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:36,012 INFO L544 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:36,045 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:36,053 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 16:19:36,056 INFO L544 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:36,082 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:36,084 INFO L544 ElimStorePlain]: Start of recursive call 1: 6 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:19:36,084 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:213, output treesize:55 [2020-07-21 16:19:36,148 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-21 16:19:36,149 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:36,186 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:36,195 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-21 16:19:36,196 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:36,227 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:36,229 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:19:36,230 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:67, output treesize:27 [2020-07-21 16:19:36,332 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 16:19:36,333 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:36,378 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:36,386 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2020-07-21 16:19:36,387 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:36,411 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:36,414 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-21 16:19:36,414 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:85, output treesize:59 [2020-07-21 16:19:36,571 INFO L440 ElimStorePlain]: Different costs {0=[|#memory_$Pointer$.offset|, |v_#memory_int_24|], 2=[|v_#memory_$Pointer$.base_37|, |v_#memory_$Pointer$.base_39|, |v_#memory_$Pointer$.base_38|, |v_#memory_$Pointer$.offset_39|, |v_#memory_$Pointer$.offset_38|, |v_#memory_$Pointer$.offset_40|], 6=[|v_#memory_$Pointer$.offset_37|, |v_#memory_$Pointer$.offset_43|, |v_#memory_$Pointer$.base_42|]} [2020-07-21 16:19:36,583 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:36,854 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-07-21 16:19:36,854 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:36,912 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:36,914 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 183 treesize of output 63 [2020-07-21 16:19:36,915 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:37,337 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-07-21 16:19:37,342 INFO L624 ElimStorePlain]: treesize reduction 24, result has 91.2 percent of original size [2020-07-21 16:19:37,352 INFO L544 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-07-21 16:19:37,534 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-07-21 16:19:37,535 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:37,544 INFO L544 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:37,672 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-21 16:19:37,673 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:37,685 INFO L544 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-07-21 16:19:37,801 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-21 16:19:37,801 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:37,807 INFO L544 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:37,882 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:37,887 INFO L544 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-07-21 16:19:37,983 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:37,989 INFO L544 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:38,050 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:38,055 INFO L544 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-07-21 16:19:38,109 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:38,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-21 16:19:38,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-21 16:19:38,131 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 76 [2020-07-21 16:19:38,133 INFO L544 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:38,175 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:19:38,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-21 16:19:38,184 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 58 [2020-07-21 16:19:38,189 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 1] term [2020-07-21 16:19:38,190 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:19:38,191 INFO L544 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2020-07-21 16:19:38,237 INFO L624 ElimStorePlain]: treesize reduction 9, result has 82.7 percent of original size [2020-07-21 16:19:38,238 INFO L544 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 11 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:19:38,239 INFO L244 ElimStorePlain]: Needed 12 recursive calls to eliminate 17 variables, input treesize:428, output treesize:7 [2020-07-21 16:19:38,259 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:19:38,280 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 16:19:38,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:19:38,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2140560847] [2020-07-21 16:19:38,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:19:38,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-21 16:19:38,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849168375] [2020-07-21 16:19:38,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 16:19:38,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:19:38,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 16:19:38,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:19:38,285 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 9 states. [2020-07-21 16:19:38,872 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-07-21 16:19:39,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:19:39,056 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-07-21 16:19:39,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:19:39,057 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2020-07-21 16:19:39,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:19:39,058 INFO L225 Difference]: With dead ends: 15 [2020-07-21 16:19:39,058 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:19:39,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2020-07-21 16:19:39,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:19:39,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:19:39,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:19:39,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:19:39,060 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-07-21 16:19:39,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:19:39,061 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:19:39,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 16:19:39,061 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:19:39,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:19:39,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:19:39,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:19:39,548 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:19:39,549 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:19:39,549 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:19:39,549 INFO L268 CegarLoopResult]: For program point fEXIT(lines 9 14) no Hoare annotation was computed. [2020-07-21 16:19:39,549 INFO L264 CegarLoopResult]: At program point fENTRY(lines 9 14) the Hoare annotation is: (or (and (= ~pp2~0.base |old(~pp2~0.base)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(~pp2~0.offset)| ~pp2~0.offset)) (= |~#b~0.base| |~#p1~0.base|) (= |~#p1~0.base| |old(~pp2~0.base)|) (not (= (select (select |old(#memory_$Pointer$.offset)| |old(~pp2~0.base)|) |old(~pp2~0.offset)|) |~#b~0.offset|)) (not (= (select (select |old(#memory_$Pointer$.offset)| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.offset|)) (= |~#a~0.base| |old(~pp2~0.base)|) (not (= (select (select |old(#memory_$Pointer$.base)| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.base|)) (= |~#p2~0.base| |~#a~0.base|) (not (= |~#p1~0.offset| ~pp1~0.offset)) (= |~#b~0.base| |~#p2~0.base|) (not (= |~#b~0.base| (select (select |old(#memory_$Pointer$.base)| |old(~pp2~0.base)|) |old(~pp2~0.offset)|))) (= |~#p1~0.base| |~#a~0.base|) (= |~#p1~0.base| |~#p2~0.base|) (= |~#b~0.base| |old(~pp2~0.base)|) (not (= |~#p1~0.base| ~pp1~0.base))) [2020-07-21 16:19:39,549 INFO L268 CegarLoopResult]: For program point fFINAL(lines 9 14) no Hoare annotation was computed. [2020-07-21 16:19:39,549 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:19:39,550 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (not (= |~#b~0.base| |~#p1~0.base|)) (not (= |~#p2~0.base| |~#a~0.base|)) (not (= |~#b~0.base| |~#p2~0.base|)) (not (= |~#p1~0.base| |~#p2~0.base|)) (not (= |~#p1~0.base| |~#a~0.base|))) [2020-07-21 16:19:39,550 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:19:39,550 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:19:39,550 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2020-07-21 16:19:39,550 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (or (= |~#p2~0.base| |~#a~0.base|) (= |~#b~0.base| |~#p2~0.base|) (and (not (= ~pp2~0.base |~#a~0.base|)) (= (select (select |#memory_$Pointer$.base| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.base|) (not (= ~pp2~0.base |~#p1~0.base|)) (= |~#b~0.base| (select (select |#memory_$Pointer$.base| ~pp2~0.base) ~pp2~0.offset)) (not (= |~#b~0.base| ~pp2~0.base)) (= |~#p1~0.base| ~pp1~0.base) (= |~#p1~0.offset| ~pp1~0.offset) (= (select (select |#memory_$Pointer$.offset| |~#p1~0.base|) |~#p1~0.offset|) |~#a~0.offset|) (= (select (select |#memory_$Pointer$.offset| ~pp2~0.base) ~pp2~0.offset) |~#b~0.offset|)) (= |~#p1~0.base| |~#a~0.base|) (= |~#p1~0.base| |~#p2~0.base|) (= |~#b~0.base| |~#p1~0.base|)) [2020-07-21 16:19:39,550 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-07-21 16:19:39,550 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 16 49) the Hoare annotation is: true [2020-07-21 16:19:39,550 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 49) no Hoare annotation was computed. [2020-07-21 16:19:39,551 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 49) no Hoare annotation was computed. [2020-07-21 16:19:39,551 INFO L264 CegarLoopResult]: At program point L42(lines 16 49) the Hoare annotation is: (or (= |~#p2~0.base| |~#b~0.base|) (= |~#a~0.base| |~#p1~0.base|) (= |~#p2~0.base| |~#a~0.base|) (= |~#p1~0.base| |~#b~0.base|) (= |~#p2~0.base| |~#p1~0.base|)) [2020-07-21 16:19:39,551 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-07-21 16:19:39,551 INFO L268 CegarLoopResult]: For program point L41-2(lines 41 43) no Hoare annotation was computed. [2020-07-21 16:19:39,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:19:39 BoogieIcfgContainer [2020-07-21 16:19:39,567 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:19:39,569 INFO L168 Benchmark]: Toolchain (without parser) took 9705.06 ms. Allocated memory was 144.7 MB in the beginning and 282.6 MB in the end (delta: 137.9 MB). Free memory was 103.2 MB in the beginning and 172.3 MB in the end (delta: -69.1 MB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. [2020-07-21 16:19:39,570 INFO L168 Benchmark]: CDTParser took 0.92 ms. Allocated memory is still 144.7 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-21 16:19:39,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.19 ms. Allocated memory is still 144.7 MB. Free memory was 102.8 MB in the beginning and 92.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-21 16:19:39,572 INFO L168 Benchmark]: Boogie Preprocessor took 166.28 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 92.8 MB in the beginning and 180.7 MB in the end (delta: -88.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-21 16:19:39,573 INFO L168 Benchmark]: RCFGBuilder took 578.09 ms. Allocated memory is still 202.9 MB. Free memory was 180.7 MB in the beginning and 160.5 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-07-21 16:19:39,574 INFO L168 Benchmark]: TraceAbstraction took 8424.82 ms. Allocated memory was 202.9 MB in the beginning and 282.6 MB in the end (delta: 79.7 MB). Free memory was 159.9 MB in the beginning and 172.3 MB in the end (delta: -12.4 MB). Peak memory consumption was 67.3 MB. Max. memory is 7.1 GB. [2020-07-21 16:19:39,577 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92 ms. Allocated memory is still 144.7 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 518.19 ms. Allocated memory is still 144.7 MB. Free memory was 102.8 MB in the beginning and 92.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 166.28 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 92.8 MB in the beginning and 180.7 MB in the end (delta: -88.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 578.09 ms. Allocated memory is still 202.9 MB. Free memory was 180.7 MB in the beginning and 160.5 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8424.82 ms. Allocated memory was 202.9 MB in the beginning and 282.6 MB in the end (delta: 79.7 MB). Free memory was 159.9 MB in the beginning and 172.3 MB in the end (delta: -12.4 MB). Peak memory consumption was 67.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (((p2 == b || a == p1) || p2 == a) || p1 == b) || p2 == p1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 16 SDslu, 53 SDs, 0 SdLazy, 90 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 181 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 122 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 26 ConstructedInterpolants, 2 QuantifiedInterpolants, 8528 SizeOfPredicates, 34 NumberOfNonLiveVariables, 431 ConjunctsInSsa, 102 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...