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-multidimensional/transpose-u.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:53:46,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:53:46,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:53:46,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:53:46,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:53:46,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:53:46,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:53:46,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:53:46,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:53:46,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:53:46,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:53:46,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:53:46,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:53:46,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:53:46,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:53:46,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:53:46,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:53:46,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:53:46,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:53:46,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:53:46,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:53:46,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:53:46,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:53:46,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:53:46,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 19:53:46,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:53:46,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:53:46,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:53:46,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:53:46,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:53:46,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:53:46,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:53:46,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:53:46,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:53:46,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:53:46,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:53:46,822 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 [2019-10-13 19:53:46,842 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:53:46,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:53:46,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:53:46,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:53:46,845 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:53:46,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:53:46,846 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:53:46,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:53:46,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:53:46,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:53:46,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:53:46,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:53:46,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:53:46,848 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:53:46,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:53:46,849 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:53:46,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:53:46,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:53:46,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:53:46,850 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:53:46,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:53:46,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:46,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:53:46,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:53:46,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:53:46,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:53:46,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:53:46,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:53:46,852 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 [2019-10-13 19:53:47,148 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:53:47,163 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:53:47,166 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:53:47,168 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:53:47,168 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:53:47,169 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/transpose-u.c [2019-10-13 19:53:47,233 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a73f719/93eafb200c6e45e1b464315f3d0e4042/FLAGd3974611c [2019-10-13 19:53:47,704 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:53:47,704 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/transpose-u.c [2019-10-13 19:53:47,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a73f719/93eafb200c6e45e1b464315f3d0e4042/FLAGd3974611c [2019-10-13 19:53:48,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a73f719/93eafb200c6e45e1b464315f3d0e4042 [2019-10-13 19:53:48,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:53:48,124 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:53:48,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:48,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:53:48,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:53:48,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:48" (1/1) ... [2019-10-13 19:53:48,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2066b6ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:48, skipping insertion in model container [2019-10-13 19:53:48,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:48" (1/1) ... [2019-10-13 19:53:48,144 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:53:48,161 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:53:48,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:48,388 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:53:48,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:48,523 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:53:48,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:48 WrapperNode [2019-10-13 19:53:48,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:48,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:53:48,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:53:48,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:53:48,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:48" (1/1) ... [2019-10-13 19:53:48,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:48" (1/1) ... [2019-10-13 19:53:48,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:48" (1/1) ... [2019-10-13 19:53:48,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:48" (1/1) ... [2019-10-13 19:53:48,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:48" (1/1) ... [2019-10-13 19:53:48,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:48" (1/1) ... [2019-10-13 19:53:48,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:48" (1/1) ... [2019-10-13 19:53:48,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:53:48,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:53:48,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:53:48,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:53:48,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:48" (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 [2019-10-13 19:53:48,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:53:48,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:53:48,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:53:48,636 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:53:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:53:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:53:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:53:48,636 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:53:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:53:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:53:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:53:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:53:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:53:48,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:53:48,921 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:53:48,922 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-13 19:53:48,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:48 BoogieIcfgContainer [2019-10-13 19:53:48,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:53:48,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:53:48,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:53:48,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:53:48,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:48" (1/3) ... [2019-10-13 19:53:48,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bffe9fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:48, skipping insertion in model container [2019-10-13 19:53:48,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:48" (2/3) ... [2019-10-13 19:53:48,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bffe9fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:48, skipping insertion in model container [2019-10-13 19:53:48,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:48" (3/3) ... [2019-10-13 19:53:48,931 INFO L109 eAbstractionObserver]: Analyzing ICFG transpose-u.c [2019-10-13 19:53:48,943 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:53:48,956 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:53:48,984 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:53:49,010 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:53:49,010 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:53:49,010 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:53:49,011 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:53:49,011 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:53:49,011 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:53:49,011 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:53:49,011 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:53:49,031 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-10-13 19:53:49,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-13 19:53:49,038 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:49,039 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:49,041 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:49,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:49,047 INFO L82 PathProgramCache]: Analyzing trace with hash -869876316, now seen corresponding path program 1 times [2019-10-13 19:53:49,056 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:49,057 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565045555] [2019-10-13 19:53:49,057 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:49,057 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:49,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:49,141 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 19:53:49,142 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [206040327] [2019-10-13 19:53:49,142 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 [2019-10-13 19:53:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:49,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 19:53:49,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:49,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:49,255 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:49,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:49,310 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565045555] [2019-10-13 19:53:49,310 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 19:53:49,311 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206040327] [2019-10-13 19:53:49,311 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:49,312 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-13 19:53:49,312 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579845052] [2019-10-13 19:53:49,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:53:49,319 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:49,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:53:49,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:53:49,339 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 4 states. [2019-10-13 19:53:49,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:49,456 INFO L93 Difference]: Finished difference Result 63 states and 94 transitions. [2019-10-13 19:53:49,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:53:49,460 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-10-13 19:53:49,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:49,475 INFO L225 Difference]: With dead ends: 63 [2019-10-13 19:53:49,476 INFO L226 Difference]: Without dead ends: 32 [2019-10-13 19:53:49,483 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:53:49,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-10-13 19:53:49,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-10-13 19:53:49,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-10-13 19:53:49,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2019-10-13 19:53:49,525 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 16 [2019-10-13 19:53:49,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:49,525 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2019-10-13 19:53:49,525 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:53:49,526 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2019-10-13 19:53:49,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-13 19:53:49,527 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:49,527 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:49,728 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:49,729 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:49,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:49,730 INFO L82 PathProgramCache]: Analyzing trace with hash 75613188, now seen corresponding path program 1 times [2019-10-13 19:53:49,731 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:49,731 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460584891] [2019-10-13 19:53:49,732 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:49,732 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:49,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:49,759 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 19:53:49,760 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1712582989] [2019-10-13 19:53:49,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:49,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 19:53:49,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:49,833 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 19:53:49,833 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:49,870 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 19:53:49,871 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460584891] [2019-10-13 19:53:49,871 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 19:53:49,872 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712582989] [2019-10-13 19:53:49,872 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:49,872 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-13 19:53:49,872 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247152294] [2019-10-13 19:53:49,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 19:53:49,875 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:49,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 19:53:49,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:53:49,876 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 6 states. [2019-10-13 19:53:49,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:49,999 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2019-10-13 19:53:49,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:53:50,000 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-10-13 19:53:50,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:50,003 INFO L225 Difference]: With dead ends: 71 [2019-10-13 19:53:50,003 INFO L226 Difference]: Without dead ends: 48 [2019-10-13 19:53:50,004 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:53:50,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-10-13 19:53:50,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2019-10-13 19:53:50,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-13 19:53:50,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2019-10-13 19:53:50,018 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 22 [2019-10-13 19:53:50,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:50,018 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2019-10-13 19:53:50,019 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 19:53:50,019 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2019-10-13 19:53:50,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-13 19:53:50,020 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:50,020 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:50,223 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:50,224 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:50,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:50,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1877024764, now seen corresponding path program 1 times [2019-10-13 19:53:50,226 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:50,227 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203509214] [2019-10-13 19:53:50,227 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:50,228 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:50,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:50,238 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 19:53:50,238 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [408340861] [2019-10-13 19:53:50,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:50,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-13 19:53:50,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:50,364 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 19:53:50,365 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:50,426 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 19:53:50,427 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203509214] [2019-10-13 19:53:50,427 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 19:53:50,427 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408340861] [2019-10-13 19:53:50,427 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1435767545] [2019-10-13 19:53:50,434 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 31 [2019-10-13 19:53:50,475 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 19:53:50,475 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 19:53:50,547 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 19:53:50,549 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 17 root evaluator evaluations with a maximum evaluation depth of 0. Performed 17 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 26 variables. [2019-10-13 19:53:50,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:50,553 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 19:53:50,587 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 19:53:50,588 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 19:53:50,590 INFO L553 sIntCurrentIteration]: We unified 29 AI predicates to 29 [2019-10-13 19:53:50,590 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 19:53:50,590 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 19:53:50,591 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6, 6] total 10 [2019-10-13 19:53:50,591 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992775962] [2019-10-13 19:53:50,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:50,592 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:50,592 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 19:53:50,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:50,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:50,593 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand 2 states. [2019-10-13 19:53:50,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:50,597 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2019-10-13 19:53:50,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:50,598 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 30 [2019-10-13 19:53:50,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:50,598 INFO L225 Difference]: With dead ends: 45 [2019-10-13 19:53:50,598 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:53:50,599 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:50,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:53:50,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:53:50,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:53:50,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:53:50,600 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2019-10-13 19:53:50,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:50,600 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:53:50,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:50,601 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:53:50,601 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:53:50,804 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:50,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:53:50,850 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:50,851 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:50,851 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:50,851 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:50,851 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:53:50,851 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:50,851 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:50,852 INFO L443 ceAbstractionStarter]: For program point L35-2(lines 35 37) no Hoare annotation was computed. [2019-10-13 19:53:50,852 INFO L439 ceAbstractionStarter]: At program point L35-3(lines 35 37) the Hoare annotation is: false [2019-10-13 19:53:50,852 INFO L439 ceAbstractionStarter]: At program point L27-2(lines 27 30) the Hoare annotation is: false [2019-10-13 19:53:50,852 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 4 40) no Hoare annotation was computed. [2019-10-13 19:53:50,852 INFO L443 ceAbstractionStarter]: For program point L27-3(lines 27 30) no Hoare annotation was computed. [2019-10-13 19:53:50,852 INFO L443 ceAbstractionStarter]: For program point L15-2(lines 15 19) no Hoare annotation was computed. [2019-10-13 19:53:50,853 INFO L439 ceAbstractionStarter]: At program point L15-3(lines 15 19) the Hoare annotation is: false [2019-10-13 19:53:50,853 INFO L443 ceAbstractionStarter]: For program point L15-4(lines 15 19) no Hoare annotation was computed. [2019-10-13 19:53:50,853 INFO L439 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: false [2019-10-13 19:53:50,853 INFO L443 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed. [2019-10-13 19:53:50,853 INFO L443 ceAbstractionStarter]: For program point L16-2(lines 16 18) no Hoare annotation was computed. [2019-10-13 19:53:50,853 INFO L439 ceAbstractionStarter]: At program point L16-3(lines 16 18) the Hoare annotation is: false [2019-10-13 19:53:50,854 INFO L439 ceAbstractionStarter]: At program point L25-2(lines 25 32) the Hoare annotation is: false [2019-10-13 19:53:50,854 INFO L443 ceAbstractionStarter]: For program point L25-3(lines 25 32) no Hoare annotation was computed. [2019-10-13 19:53:50,854 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 4 40) no Hoare annotation was computed. [2019-10-13 19:53:50,854 INFO L443 ceAbstractionStarter]: For program point L34-2(lines 34 38) no Hoare annotation was computed. [2019-10-13 19:53:50,854 INFO L439 ceAbstractionStarter]: At program point L34-3(lines 34 38) the Hoare annotation is: false [2019-10-13 19:53:50,854 INFO L443 ceAbstractionStarter]: For program point L34-4(lines 34 38) no Hoare annotation was computed. [2019-10-13 19:53:50,855 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 4 40) the Hoare annotation is: true [2019-10-13 19:53:50,855 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-13 19:53:50,855 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-13 19:53:50,855 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-13 19:53:50,855 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-13 19:53:50,855 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-13 19:53:50,856 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-13 19:53:50,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:50 BoogieIcfgContainer [2019-10-13 19:53:50,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:53:50,868 INFO L168 Benchmark]: Toolchain (without parser) took 2742.87 ms. Allocated memory was 137.9 MB in the beginning and 234.4 MB in the end (delta: 96.5 MB). Free memory was 102.8 MB in the beginning and 176.9 MB in the end (delta: -74.1 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:50,869 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-13 19:53:50,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.65 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 102.6 MB in the beginning and 180.8 MB in the end (delta: -78.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:50,871 INFO L168 Benchmark]: Boogie Preprocessor took 50.47 ms. Allocated memory is still 201.9 MB. Free memory was 180.8 MB in the beginning and 178.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:50,872 INFO L168 Benchmark]: RCFGBuilder took 348.04 ms. Allocated memory is still 201.9 MB. Free memory was 178.4 MB in the beginning and 162.6 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:50,873 INFO L168 Benchmark]: TraceAbstraction took 1940.54 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 161.9 MB in the beginning and 176.9 MB in the end (delta: -15.0 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:50,877 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 396.65 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 102.6 MB in the beginning and 180.8 MB in the end (delta: -78.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.47 ms. Allocated memory is still 201.9 MB. Free memory was 180.8 MB in the beginning and 178.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 348.04 ms. Allocated memory is still 201.9 MB. Free memory was 178.4 MB in the beginning and 162.6 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1940.54 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 161.9 MB in the beginning and 176.9 MB in the end (delta: -15.0 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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: 15]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 32 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 42 SDslu, 71 SDs, 0 SdLazy, 63 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=2, 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 15 PreInvPairs, 15 NumberOfFragments, 12 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 4894 SizeOfPredicates, 6 NumberOfNonLiveVariables, 264 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 52/60 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 119, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9224137931034483, AVG_VARS_REMOVED_DURING_WEAKENING: 0.9310344827586207, AVG_WEAKENED_CONJUNCTS: 0.20689655172413793, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...