/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/loops/array-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 16:43:23,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 16:43:23,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 16:43:23,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 16:43:23,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 16:43:23,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 16:43:23,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 16:43:24,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 16:43:24,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 16:43:24,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 16:43:24,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 16:43:24,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 16:43:24,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 16:43:24,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 16:43:24,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 16:43:24,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 16:43:24,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 16:43:24,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 16:43:24,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 16:43:24,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 16:43:24,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 16:43:24,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 16:43:24,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 16:43:24,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 16:43:24,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 16:43:24,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 16:43:24,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 16:43:24,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 16:43:24,060 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 16:43:24,083 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:43:24,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:43:24,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:43:24,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:43:24,085 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:43:24,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:43:24,086 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:43:24,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:43:24,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:43:24,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:43:24,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:43:24,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:43:24,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:43:24,089 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:43:24,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:43:24,089 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:43:24,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:43:24,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:43:24,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:43:24,090 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:43:24,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:43:24,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:43:24,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:43:24,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:43:24,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:43:24,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:43:24,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:43:24,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:43:24,092 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:43:24,092 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 16:43:24,366 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:43:24,378 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:43:24,382 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:43:24,383 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:43:24,384 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:43:24,384 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/array-1.c [2020-07-21 16:43:24,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd1a610be/95c2ba3483e44160bb73816adf0533b4/FLAGb1a0511fe [2020-07-21 16:43:24,915 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:43:24,917 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/array-1.c [2020-07-21 16:43:24,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd1a610be/95c2ba3483e44160bb73816adf0533b4/FLAGb1a0511fe [2020-07-21 16:43:25,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd1a610be/95c2ba3483e44160bb73816adf0533b4 [2020-07-21 16:43:25,297 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:43:25,300 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:43:25,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:43:25,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:43:25,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:43:25,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:43:25" (1/1) ... [2020-07-21 16:43:25,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74759e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:25, skipping insertion in model container [2020-07-21 16:43:25,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:43:25" (1/1) ... [2020-07-21 16:43:25,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:43:25,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:43:25,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:43:25,537 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:43:25,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:43:25,574 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:43:25,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:25 WrapperNode [2020-07-21 16:43:25,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:43:25,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:43:25,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:43:25,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:43:25,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:25" (1/1) ... [2020-07-21 16:43:25,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:25" (1/1) ... [2020-07-21 16:43:25,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:25" (1/1) ... [2020-07-21 16:43:25,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:25" (1/1) ... [2020-07-21 16:43:25,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:25" (1/1) ... [2020-07-21 16:43:25,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:25" (1/1) ... [2020-07-21 16:43:25,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:25" (1/1) ... [2020-07-21 16:43:25,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:43:25,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:43:25,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:43:25,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:43:25,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:25" (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 16:43:25,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:43:25,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:43:25,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-21 16:43:25,764 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:43:25,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:43:25,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 16:43:25,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 16:43:25,764 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:43:25,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 16:43:25,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 16:43:25,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 16:43:25,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 16:43:25,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:43:25,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:43:25,991 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:43:25,991 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 16:43:25,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:43:25 BoogieIcfgContainer [2020-07-21 16:43:26,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:43:26,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:43:26,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:43:26,022 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:43:26,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:43:25" (1/3) ... [2020-07-21 16:43:26,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727538d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:43:26, skipping insertion in model container [2020-07-21 16:43:26,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:43:25" (2/3) ... [2020-07-21 16:43:26,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727538d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:43:26, skipping insertion in model container [2020-07-21 16:43:26,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:43:25" (3/3) ... [2020-07-21 16:43:26,032 INFO L109 eAbstractionObserver]: Analyzing ICFG array-1.c [2020-07-21 16:43:26,060 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:43:26,075 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:43:26,104 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:43:26,128 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:43:26,129 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:43:26,129 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:43:26,129 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:43:26,129 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:43:26,129 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:43:26,129 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:43:26,130 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:43:26,147 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-07-21 16:43:26,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-21 16:43:26,152 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:43:26,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:43:26,154 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:43:26,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:43:26,159 INFO L82 PathProgramCache]: Analyzing trace with hash 202253298, now seen corresponding path program 1 times [2020-07-21 16:43:26,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:43:26,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549906058] [2020-07-21 16:43:26,168 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 16:43:26,252 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:43:26,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:43:26,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 16:43:26,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:43:26,281 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 16:43:26,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:43:26,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549906058] [2020-07-21 16:43:26,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:43:26,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 16:43:26,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104325122] [2020-07-21 16:43:26,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 16:43:26,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:43:26,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 16:43:26,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 16:43:26,307 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-07-21 16:43:26,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:43:26,330 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2020-07-21 16:43:26,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 16:43:26,331 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-07-21 16:43:26,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:43:26,341 INFO L225 Difference]: With dead ends: 35 [2020-07-21 16:43:26,342 INFO L226 Difference]: Without dead ends: 15 [2020-07-21 16:43:26,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 16:43:26,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-21 16:43:26,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-21 16:43:26,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-21 16:43:26,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-07-21 16:43:26,387 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 12 [2020-07-21 16:43:26,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:43:26,387 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-07-21 16:43:26,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 16:43:26,388 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-07-21 16:43:26,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-21 16:43:26,389 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:43:26,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:43:26,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:43:26,601 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:43:26,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:43:26,603 INFO L82 PathProgramCache]: Analyzing trace with hash -112667363, now seen corresponding path program 1 times [2020-07-21 16:43:26,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:43:26,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145319906] [2020-07-21 16:43:26,604 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 16:43:26,648 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 16:43:26,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:43:26,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 16:43:26,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:43:26,681 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 16:43:26,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:43:26,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145319906] [2020-07-21 16:43:26,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:43:26,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:43:26,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049853337] [2020-07-21 16:43:26,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:43:26,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:43:26,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:43:26,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:43:26,686 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 3 states. [2020-07-21 16:43:26,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:43:26,736 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2020-07-21 16:43:26,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:43:26,737 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-07-21 16:43:26,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:43:26,738 INFO L225 Difference]: With dead ends: 24 [2020-07-21 16:43:26,738 INFO L226 Difference]: Without dead ends: 18 [2020-07-21 16:43:26,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 16:43:26,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-21 16:43:26,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2020-07-21 16:43:26,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-21 16:43:26,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-07-21 16:43:26,747 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 12 [2020-07-21 16:43:26,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:43:26,747 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-07-21 16:43:26,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:43:26,748 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-07-21 16:43:26,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-21 16:43:26,749 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:43:26,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:43:26,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:43:26,962 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:43:26,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:43:26,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1912057964, now seen corresponding path program 1 times [2020-07-21 16:43:26,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:43:26,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636673653] [2020-07-21 16:43:26,967 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 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 16:43:27,029 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:43:27,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:43:27,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 16:43:27,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:43:27,119 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-21 16:43:27,119 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:43:27,143 INFO L624 ElimStorePlain]: treesize reduction 5, result has 82.1 percent of original size [2020-07-21 16:43:27,163 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2020-07-21 16:43:27,165 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 16:43:27,172 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:43:27,173 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 16:43:27,173 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:59, output treesize:5 [2020-07-21 16:43:27,185 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:43:27,246 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:43:27,247 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 21 treesize of output 21 [2020-07-21 16:43:27,250 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:43:27,252 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:43:27,254 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-21 16:43:27,271 INFO L624 ElimStorePlain]: treesize reduction 16, result has 36.0 percent of original size [2020-07-21 16:43:27,273 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:43:27,274 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:31, output treesize:3 [2020-07-21 16:43:27,287 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:43:27,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:43:27,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:43:27,351 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:43:27,373 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:43:27,423 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:43:27,424 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:43:27,429 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:43:27,463 WARN L234 Elim1Store]: Array PQE input equivalent to true [2020-07-21 16:43:27,463 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:43:27,470 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2020-07-21 16:43:27,474 INFO L173 IndexEqualityManager]: detected equality via solver [2020-07-21 16:43:27,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-21 16:43:27,481 INFO L173 IndexEqualityManager]: detected equality via solver [2020-07-21 16:43:27,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-21 16:43:27,488 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-07-21 16:43:27,489 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-21 16:43:27,490 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:43:27,491 INFO L544 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:43:27,497 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2020-07-21 16:43:27,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-21 16:43:27,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-21 16:43:27,513 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2020-07-21 16:43:27,514 INFO L544 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2020-07-21 16:43:27,516 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:43:27,517 INFO L544 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:43:27,520 WARN L234 Elim1Store]: Array PQE input equivalent to true [2020-07-21 16:43:27,521 INFO L544 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2020-07-21 16:43:27,544 INFO L624 ElimStorePlain]: treesize reduction 31, result has 36.7 percent of original size [2020-07-21 16:43:27,545 INFO L544 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-21 16:43:27,546 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:233, output treesize:18 [2020-07-21 16:43:27,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:43:27,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636673653] [2020-07-21 16:43:27,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:43:27,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2020-07-21 16:43:27,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851800224] [2020-07-21 16:43:27,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 16:43:27,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:43:27,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 16:43:27,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-07-21 16:43:27,585 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 11 states. [2020-07-21 16:43:27,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:43:27,807 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2020-07-21 16:43:27,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 16:43:27,807 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15 [2020-07-21 16:43:27,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:43:27,808 INFO L225 Difference]: With dead ends: 24 [2020-07-21 16:43:27,809 INFO L226 Difference]: Without dead ends: 18 [2020-07-21 16:43:27,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-07-21 16:43:27,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-21 16:43:27,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-07-21 16:43:27,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-21 16:43:27,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-07-21 16:43:27,814 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 15 [2020-07-21 16:43:27,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:43:27,815 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-07-21 16:43:27,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 16:43:27,815 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-07-21 16:43:27,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-21 16:43:27,816 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:43:27,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:43:28,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:43:28,017 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:43:28,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:43:28,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1573562706, now seen corresponding path program 1 times [2020-07-21 16:43:28,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:43:28,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606037125] [2020-07-21 16:43:28,020 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 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 16:43:28,055 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:43:28,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:43:28,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 16:43:28,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:43:28,066 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:43:28,068 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:43:28,070 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:43:28,084 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-21 16:43:28,085 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:43:28,091 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-07-21 16:43:28,091 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 16:43:28,120 INFO L624 ElimStorePlain]: treesize reduction 59, result has 37.9 percent of original size [2020-07-21 16:43:28,125 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2020-07-21 16:43:28,126 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-21 16:43:28,135 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:43:28,136 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-07-21 16:43:28,136 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:193, output treesize:19 [2020-07-21 16:43:28,196 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:43:28,196 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 23 [2020-07-21 16:43:28,198 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:43:28,200 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:43:28,201 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-21 16:43:28,215 INFO L624 ElimStorePlain]: treesize reduction 11, result has 50.0 percent of original size [2020-07-21 16:43:28,217 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:43:28,217 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:28, output treesize:5 [2020-07-21 16:43:28,230 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:43:28,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:43:28,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:43:28,295 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:43:28,352 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:43:28,360 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:43:28,363 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:43:28,369 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:43:28,393 WARN L234 Elim1Store]: Array PQE input equivalent to true [2020-07-21 16:43:28,393 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:43:28,399 WARN L234 Elim1Store]: Array PQE input equivalent to true [2020-07-21 16:43:28,400 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 16:43:28,406 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2020-07-21 16:43:28,410 INFO L173 IndexEqualityManager]: detected equality via solver [2020-07-21 16:43:28,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-21 16:43:28,416 INFO L173 IndexEqualityManager]: detected equality via solver [2020-07-21 16:43:28,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-21 16:43:28,423 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2020-07-21 16:43:28,424 INFO L544 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-07-21 16:43:28,426 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:43:28,427 INFO L544 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:43:28,431 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2020-07-21 16:43:28,446 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:43:28,447 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 124 treesize of output 118 [2020-07-21 16:43:28,449 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:43:28,450 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:43:28,457 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:43:28,460 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:43:28,466 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:43:28,467 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:43:28,468 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 16:43:28,470 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:43:28,475 INFO L544 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2020-07-21 16:43:28,496 INFO L624 ElimStorePlain]: treesize reduction 147, result has 5.8 percent of original size [2020-07-21 16:43:28,496 INFO L544 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:43:28,521 INFO L624 ElimStorePlain]: treesize reduction 32, result has 36.0 percent of original size [2020-07-21 16:43:28,522 INFO L544 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-21 16:43:28,522 INFO L244 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:235, output treesize:18 [2020-07-21 16:43:28,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:43:28,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606037125] [2020-07-21 16:43:28,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:43:28,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2020-07-21 16:43:28,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995686135] [2020-07-21 16:43:28,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 16:43:28,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:43:28,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 16:43:28,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-07-21 16:43:28,572 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 12 states. [2020-07-21 16:43:28,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:43:28,730 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-07-21 16:43:28,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:43:28,730 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-07-21 16:43:28,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:43:28,731 INFO L225 Difference]: With dead ends: 17 [2020-07-21 16:43:28,731 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:43:28,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2020-07-21 16:43:28,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:43:28,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:43:28,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:43:28,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:43:28,733 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-07-21 16:43:28,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:43:28,734 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:43:28,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 16:43:28,734 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:43:28,734 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:43:28,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:43:28,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:43:29,106 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:43:29,107 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:43:29,107 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:43:29,107 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:43:29,107 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 16:43:29,107 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:43:29,107 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:43:29,107 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 29) the Hoare annotation is: true [2020-07-21 16:43:29,108 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (and (<= main_~menor~0 |main_#t~mem5|) (= 1 main_~SIZE~0) (exists ((main_~j~0 Int)) (and (<= main_~menor~0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* (mod main_~j~0 4294967296) 4) |main_~#array~0.offset|))) (<= (mod main_~j~0 4294967296) 2147483647) (< (mod main_~j~0 4294967296) 1)))) [2020-07-21 16:43:29,108 INFO L268 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-07-21 16:43:29,108 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 29) no Hoare annotation was computed. [2020-07-21 16:43:29,108 INFO L268 CegarLoopResult]: For program point L22(lines 22 23) no Hoare annotation was computed. [2020-07-21 16:43:29,108 INFO L268 CegarLoopResult]: For program point L19-2(lines 19 24) no Hoare annotation was computed. [2020-07-21 16:43:29,109 INFO L264 CegarLoopResult]: At program point L19-3(lines 19 24) the Hoare annotation is: (let ((.cse0 (= 1 main_~SIZE~0))) (or (and .cse0 (exists ((main_~j~0 Int)) (and (< (mod main_~j~0 4294967296) 1) (<= (mod main_~j~0 4294967296) 2147483647) (<= main_~menor~0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* (mod main_~j~0 4294967296) 4) |main_~#array~0.offset|)))))) (and .cse0 (= 0 main_~j~0)))) [2020-07-21 16:43:29,109 INFO L268 CegarLoopResult]: For program point L19-4(lines 19 24) no Hoare annotation was computed. [2020-07-21 16:43:29,109 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 29) no Hoare annotation was computed. [2020-07-21 16:43:29,109 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-07-21 16:43:29,109 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-07-21 16:43:29,109 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-21 16:43:29,109 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-07-21 16:43:29,110 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-07-21 16:43:29,110 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-07-21 16:43:29,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2020-07-21 16:43:29,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2020-07-21 16:43:29,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2020-07-21 16:43:29,123 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-21 16:43:29,128 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2020-07-21 16:43:29,129 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2020-07-21 16:43:29,129 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2020-07-21 16:43:29,129 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-21 16:43:29,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:43:29 BoogieIcfgContainer [2020-07-21 16:43:29,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:43:29,134 INFO L168 Benchmark]: Toolchain (without parser) took 3835.76 ms. Allocated memory was 146.8 MB in the beginning and 244.3 MB in the end (delta: 97.5 MB). Free memory was 104.8 MB in the beginning and 211.5 MB in the end (delta: -106.7 MB). Peak memory consumption was 105.8 MB. Max. memory is 7.1 GB. [2020-07-21 16:43:29,135 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory is still 122.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 16:43:29,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.17 ms. Allocated memory is still 146.8 MB. Free memory was 104.4 MB in the beginning and 94.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-21 16:43:29,137 INFO L168 Benchmark]: Boogie Preprocessor took 128.94 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 94.3 MB in the beginning and 182.0 MB in the end (delta: -87.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-21 16:43:29,138 INFO L168 Benchmark]: RCFGBuilder took 298.05 ms. Allocated memory is still 204.5 MB. Free memory was 182.0 MB in the beginning and 168.0 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-07-21 16:43:29,139 INFO L168 Benchmark]: TraceAbstraction took 3121.35 ms. Allocated memory was 204.5 MB in the beginning and 244.3 MB in the end (delta: 39.8 MB). Free memory was 167.1 MB in the beginning and 211.5 MB in the end (delta: -44.4 MB). Peak memory consumption was 110.4 MB. Max. memory is 7.1 GB. [2020-07-21 16:43:29,143 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory is still 122.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 274.17 ms. Allocated memory is still 146.8 MB. Free memory was 104.4 MB in the beginning and 94.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.94 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 94.3 MB in the beginning and 182.0 MB in the end (delta: -87.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 298.05 ms. Allocated memory is still 204.5 MB. Free memory was 182.0 MB in the beginning and 168.0 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3121.35 ms. Allocated memory was 204.5 MB in the beginning and 244.3 MB in the end (delta: 39.8 MB). Free memory was 167.1 MB in the beginning and 211.5 MB in the end (delta: -44.4 MB). Peak memory consumption was 110.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 19]: Loop Invariant [2020-07-21 16:43:29,151 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2020-07-21 16:43:29,151 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2020-07-21 16:43:29,151 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2020-07-21 16:43:29,152 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-21 16:43:29,152 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2020-07-21 16:43:29,152 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2020-07-21 16:43:29,153 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2020-07-21 16:43:29,153 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (1 == SIZE && (\exists main_~j~0 : int :: (main_~j~0 % 4294967296 < 1 && main_~j~0 % 4294967296 <= 2147483647) && menor <= unknown-#memory_int-unknown[array][main_~j~0 % 4294967296 * 4 + array])) || (1 == SIZE && 0 == j) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 25 SDslu, 125 SDs, 0 SdLazy, 105 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 56 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 13 NumberOfFragments, 74 HoareAnnotationTreeSize, 10 FomulaSimplifications, 5 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 63 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 54 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 78 ConstructedInterpolants, 9 QuantifiedInterpolants, 5642 SizeOfPredicates, 27 NumberOfNonLiveVariables, 221 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 0/4 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...