java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/array-tiling/mbpr3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:52:45,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:52:45,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:52:45,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:52:45,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:52:45,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:52:45,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:52:45,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:52:45,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:52:45,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:52:45,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:52:45,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:52:45,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:52:45,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:52:45,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:52:45,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:52:45,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:52:45,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:52:45,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:52:45,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:52:45,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:52:45,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:52:45,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:52:45,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:52:45,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:52:45,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:52:45,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:52:45,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:52:45,815 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 [2019-10-14 23:52:45,833 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:52:45,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:52:45,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:52:45,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:52:45,835 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:52:45,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:52:45,835 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:52:45,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:52:45,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:52:45,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:52:45,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:52:45,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:52:45,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:52:45,837 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:52:45,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:52:45,837 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:52:45,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:52:45,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:52:45,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:52:45,838 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:52:45,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:52:45,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:52:45,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:52:45,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:52:45,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:52:45,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:52:45,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:52:45,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:52:45,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-14 23:52:46,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:52:46,097 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:52:46,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:52:46,102 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:52:46,103 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:52:46,103 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/mbpr3.c [2019-10-14 23:52:46,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4b12b448/e956d74235b74f8aa734bf50dec19aa3/FLAG92011576d [2019-10-14 23:52:46,672 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:52:46,673 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/mbpr3.c [2019-10-14 23:52:46,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4b12b448/e956d74235b74f8aa734bf50dec19aa3/FLAG92011576d [2019-10-14 23:52:46,989 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4b12b448/e956d74235b74f8aa734bf50dec19aa3 [2019-10-14 23:52:46,999 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:52:47,000 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:52:47,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:47,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:52:47,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:52:47,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:46" (1/1) ... [2019-10-14 23:52:47,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e7b9634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47, skipping insertion in model container [2019-10-14 23:52:47,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:46" (1/1) ... [2019-10-14 23:52:47,016 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:52:47,037 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:52:47,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:47,266 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:52:47,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:47,413 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:52:47,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47 WrapperNode [2019-10-14 23:52:47,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:47,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:52:47,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:52:47,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:52:47,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (1/1) ... [2019-10-14 23:52:47,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (1/1) ... [2019-10-14 23:52:47,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (1/1) ... [2019-10-14 23:52:47,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (1/1) ... [2019-10-14 23:52:47,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (1/1) ... [2019-10-14 23:52:47,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (1/1) ... [2019-10-14 23:52:47,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (1/1) ... [2019-10-14 23:52:47,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:52:47,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:52:47,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:52:47,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:52:47,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (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 [2019-10-14 23:52:47,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:52:47,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:52:47,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:52:47,537 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:52:47,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:52:47,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:52:47,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:52:47,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:52:47,538 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:52:47,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:52:47,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:52:47,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:52:47,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:52:47,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:52:47,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:52:47,905 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:52:47,906 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-14 23:52:47,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:47 BoogieIcfgContainer [2019-10-14 23:52:47,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:52:47,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:52:47,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:52:47,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:52:47,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:52:46" (1/3) ... [2019-10-14 23:52:47,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6c0ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:47, skipping insertion in model container [2019-10-14 23:52:47,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (2/3) ... [2019-10-14 23:52:47,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6c0ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:47, skipping insertion in model container [2019-10-14 23:52:47,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:47" (3/3) ... [2019-10-14 23:52:47,915 INFO L109 eAbstractionObserver]: Analyzing ICFG mbpr3.c [2019-10-14 23:52:47,928 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:52:47,934 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:52:47,945 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:52:47,969 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:52:47,970 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:52:47,970 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:52:47,970 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:52:47,970 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:52:47,970 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:52:47,970 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:52:47,971 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:52:47,989 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2019-10-14 23:52:47,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-14 23:52:47,996 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:47,997 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:47,999 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:48,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:48,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1164915713, now seen corresponding path program 1 times [2019-10-14 23:52:48,010 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:48,011 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383585247] [2019-10-14 23:52:48,011 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:48,011 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:48,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:48,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:48,184 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383585247] [2019-10-14 23:52:48,185 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:48,185 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-14 23:52:48,186 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163861423] [2019-10-14 23:52:48,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:52:48,193 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:48,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:52:48,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:48,212 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2019-10-14 23:52:48,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:48,240 INFO L93 Difference]: Finished difference Result 68 states and 92 transitions. [2019-10-14 23:52:48,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:52:48,242 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2019-10-14 23:52:48,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:48,252 INFO L225 Difference]: With dead ends: 68 [2019-10-14 23:52:48,252 INFO L226 Difference]: Without dead ends: 34 [2019-10-14 23:52:48,256 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:48,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-10-14 23:52:48,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-10-14 23:52:48,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-10-14 23:52:48,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2019-10-14 23:52:48,300 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 20 [2019-10-14 23:52:48,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:48,301 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2019-10-14 23:52:48,301 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:52:48,302 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2019-10-14 23:52:48,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-14 23:52:48,303 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:48,303 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:48,304 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:48,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:48,305 INFO L82 PathProgramCache]: Analyzing trace with hash 208061977, now seen corresponding path program 1 times [2019-10-14 23:52:48,305 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:48,305 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350442279] [2019-10-14 23:52:48,306 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:48,306 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:48,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:48,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:48,481 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350442279] [2019-10-14 23:52:48,481 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:48,485 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:52:48,485 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715761164] [2019-10-14 23:52:48,487 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:52:48,488 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:48,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:52:48,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:52:48,491 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 5 states. [2019-10-14 23:52:48,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:48,575 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2019-10-14 23:52:48,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-14 23:52:48,576 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-10-14 23:52:48,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:48,578 INFO L225 Difference]: With dead ends: 42 [2019-10-14 23:52:48,580 INFO L226 Difference]: Without dead ends: 40 [2019-10-14 23:52:48,581 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:52:48,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-14 23:52:48,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2019-10-14 23:52:48,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-14 23:52:48,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2019-10-14 23:52:48,597 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 20 [2019-10-14 23:52:48,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:48,598 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2019-10-14 23:52:48,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:52:48,599 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2019-10-14 23:52:48,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-14 23:52:48,602 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:48,602 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:48,603 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:48,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:48,604 INFO L82 PathProgramCache]: Analyzing trace with hash 209909019, now seen corresponding path program 1 times [2019-10-14 23:52:48,605 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:48,605 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854159290] [2019-10-14 23:52:48,605 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:48,606 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:48,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:48,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:48,965 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854159290] [2019-10-14 23:52:48,965 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:48,965 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:52:48,965 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625135568] [2019-10-14 23:52:48,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:52:48,968 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:48,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:52:48,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:52:48,970 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand 6 states. [2019-10-14 23:52:49,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:49,146 INFO L93 Difference]: Finished difference Result 70 states and 84 transitions. [2019-10-14 23:52:49,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:52:49,146 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-10-14 23:52:49,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:49,150 INFO L225 Difference]: With dead ends: 70 [2019-10-14 23:52:49,150 INFO L226 Difference]: Without dead ends: 43 [2019-10-14 23:52:49,151 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:52:49,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-10-14 23:52:49,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2019-10-14 23:52:49,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-14 23:52:49,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2019-10-14 23:52:49,163 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 20 [2019-10-14 23:52:49,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:49,163 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2019-10-14 23:52:49,163 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:52:49,164 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2019-10-14 23:52:49,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-14 23:52:49,165 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:49,165 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:49,165 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:49,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:49,166 INFO L82 PathProgramCache]: Analyzing trace with hash 2624448, now seen corresponding path program 1 times [2019-10-14 23:52:49,166 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:49,166 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841962035] [2019-10-14 23:52:49,166 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:49,167 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:49,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:49,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:49,323 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841962035] [2019-10-14 23:52:49,323 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979343318] [2019-10-14 23:52:49,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:49,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-14 23:52:49,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:52:49,419 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:52:49,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:49,461 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:52:49,517 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:52:49,528 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:52:49,529 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:52:49,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:49,575 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1748852591] [2019-10-14 23:52:49,582 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 25 [2019-10-14 23:52:49,621 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-14 23:52:49,621 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 23:52:49,700 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-14 23:52:49,701 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 22 root evaluator evaluations with a maximum evaluation depth of 2. Performed 22 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Never found a fixpoint. Largest state had 28 variables. [2019-10-14 23:52:49,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:49,706 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-14 23:52:49,746 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 96.67% of their original sizes. [2019-10-14 23:52:49,747 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-14 23:52:49,757 INFO L553 sIntCurrentIteration]: We unified 23 AI predicates to 23 [2019-10-14 23:52:49,757 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-14 23:52:49,758 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-14 23:52:49,758 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 5] total 9 [2019-10-14 23:52:49,758 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504968079] [2019-10-14 23:52:49,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:52:49,759 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:49,760 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-14 23:52:49,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:52:49,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:52:49,760 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand 3 states. [2019-10-14 23:52:49,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:49,765 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2019-10-14 23:52:49,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:52:49,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-14 23:52:49,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:49,765 INFO L225 Difference]: With dead ends: 40 [2019-10-14 23:52:49,765 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:52:49,766 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:52:49,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:52:49,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:52:49,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:52:49,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:52:49,767 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2019-10-14 23:52:49,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:49,768 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:52:49,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:52:49,768 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:52:49,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:52:49,972 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:49,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:52:50,034 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:50,034 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:50,034 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:50,034 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:50,035 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~CELLCOUNT~0 2147483647) (<= 0 (+ ~CELLCOUNT~0 2147483648))) [2019-10-14 23:52:50,035 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:50,035 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:50,035 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 8 71) no Hoare annotation was computed. [2019-10-14 23:52:50,035 INFO L443 ceAbstractionStarter]: For program point L23-2(lines 23 35) no Hoare annotation was computed. [2019-10-14 23:52:50,035 INFO L439 ceAbstractionStarter]: At program point L23-3(lines 23 35) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:50,035 INFO L443 ceAbstractionStarter]: For program point L23-4(lines 23 35) no Hoare annotation was computed. [2019-10-14 23:52:50,036 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 69) no Hoare annotation was computed. [2019-10-14 23:52:50,036 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 11 69) no Hoare annotation was computed. [2019-10-14 23:52:50,036 INFO L443 ceAbstractionStarter]: For program point L65-2(lines 65 68) no Hoare annotation was computed. [2019-10-14 23:52:50,036 INFO L439 ceAbstractionStarter]: At program point L65-3(lines 65 68) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:50,036 INFO L443 ceAbstractionStarter]: For program point L65-4(lines 65 68) no Hoare annotation was computed. [2019-10-14 23:52:50,036 INFO L443 ceAbstractionStarter]: For program point L53(lines 53 60) no Hoare annotation was computed. [2019-10-14 23:52:50,036 INFO L443 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-10-14 23:52:50,036 INFO L443 ceAbstractionStarter]: For program point L53-2(lines 53 60) no Hoare annotation was computed. [2019-10-14 23:52:50,036 INFO L443 ceAbstractionStarter]: For program point L37-2(lines 37 49) no Hoare annotation was computed. [2019-10-14 23:52:50,037 INFO L439 ceAbstractionStarter]: At program point L37-3(lines 37 49) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:50,037 INFO L443 ceAbstractionStarter]: For program point L37-4(lines 37 49) no Hoare annotation was computed. [2019-10-14 23:52:50,037 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 32) no Hoare annotation was computed. [2019-10-14 23:52:50,037 INFO L443 ceAbstractionStarter]: For program point L25-2(lines 25 32) no Hoare annotation was computed. [2019-10-14 23:52:50,037 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 8 71) no Hoare annotation was computed. [2019-10-14 23:52:50,037 INFO L443 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2019-10-14 23:52:50,038 INFO L439 ceAbstractionStarter]: At program point L67-2(line 67) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:50,038 INFO L443 ceAbstractionStarter]: For program point L67-3(line 67) no Hoare annotation was computed. [2019-10-14 23:52:50,038 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 8 71) the Hoare annotation is: (or (and (<= ~CELLCOUNT~0 2147483647) (<= 0 (+ ~CELLCOUNT~0 2147483648))) (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:50,038 INFO L443 ceAbstractionStarter]: For program point L51-2(lines 51 63) no Hoare annotation was computed. [2019-10-14 23:52:50,038 INFO L439 ceAbstractionStarter]: At program point L51-3(lines 51 63) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:50,038 INFO L443 ceAbstractionStarter]: For program point L51-4(lines 51 63) no Hoare annotation was computed. [2019-10-14 23:52:50,038 INFO L443 ceAbstractionStarter]: For program point L39(lines 39 46) no Hoare annotation was computed. [2019-10-14 23:52:50,038 INFO L443 ceAbstractionStarter]: For program point L39-2(lines 39 46) no Hoare annotation was computed. [2019-10-14 23:52:50,038 INFO L443 ceAbstractionStarter]: For program point L3-3(line 3) no Hoare annotation was computed. [2019-10-14 23:52:50,039 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2019-10-14 23:52:50,039 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2019-10-14 23:52:50,039 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2019-10-14 23:52:50,039 INFO L443 ceAbstractionStarter]: For program point L3(line 3) no Hoare annotation was computed. [2019-10-14 23:52:50,039 INFO L443 ceAbstractionStarter]: For program point L3-1(line 3) no Hoare annotation was computed. [2019-10-14 23:52:50,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:52:50 BoogieIcfgContainer [2019-10-14 23:52:50,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:52:50,065 INFO L168 Benchmark]: Toolchain (without parser) took 3062.22 ms. Allocated memory was 144.7 MB in the beginning and 234.9 MB in the end (delta: 90.2 MB). Free memory was 101.6 MB in the beginning and 151.6 MB in the end (delta: -50.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:50,066 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.7 MB. Free memory is still 119.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-14 23:52:50,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.45 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 101.6 MB in the beginning and 182.0 MB in the end (delta: -80.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:50,069 INFO L168 Benchmark]: Boogie Preprocessor took 54.26 ms. Allocated memory is still 202.9 MB. Free memory was 182.0 MB in the beginning and 178.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:50,075 INFO L168 Benchmark]: RCFGBuilder took 436.59 ms. Allocated memory is still 202.9 MB. Free memory was 178.7 MB in the beginning and 159.9 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:50,076 INFO L168 Benchmark]: TraceAbstraction took 2151.30 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 159.9 MB in the beginning and 151.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:50,087 INFO L335 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 144.7 MB. Free memory is still 119.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 414.45 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 101.6 MB in the beginning and 182.0 MB in the end (delta: -80.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.26 ms. Allocated memory is still 202.9 MB. Free memory was 182.0 MB in the beginning and 178.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 436.59 ms. Allocated memory is still 202.9 MB. Free memory was 178.7 MB in the beginning and 159.9 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2151.30 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 159.9 MB in the beginning and 151.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 37]: Loop Invariant Derived loop invariant: !(\old(CELLCOUNT) <= 2147483647) || !(0 <= \old(CELLCOUNT) + 2147483648) - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: !(\old(CELLCOUNT) <= 2147483647) || !(0 <= \old(CELLCOUNT) + 2147483648) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: !(\old(CELLCOUNT) <= 2147483647) || !(0 <= \old(CELLCOUNT) + 2147483648) - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: !(\old(CELLCOUNT) <= 2147483647) || !(0 <= \old(CELLCOUNT) + 2147483648) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 40 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 123 SDtfs, 51 SDslu, 147 SDs, 0 SdLazy, 72 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 14 PreInvPairs, 14 NumberOfFragments, 87 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 6649 SizeOfPredicates, 4 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 125, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9420289855072462, AVG_VARS_REMOVED_DURING_WEAKENING: 1.0, AVG_WEAKENED_CONJUNCTS: 0.6956521739130435, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...