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/copy-partial-2-n-u.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:52:36,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:52:36,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:52:36,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:52:36,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:52:36,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:52:36,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:52:36,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:52:36,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:52:36,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:52:36,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:52:36,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:52:36,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:52:36,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:52:36,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:52:36,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:52:36,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:52:36,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:52:36,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:52:36,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:52:36,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:52:36,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:52:36,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:52:36,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:52:36,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:52:36,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:52:36,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:52:36,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:52:36,980 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 23:52:36,994 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:52:36,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:52:36,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:52:36,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:52:36,996 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:52:36,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:52:36,996 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:52:36,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:52:36,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:52:36,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:52:36,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:52:36,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:52:36,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:52:36,997 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:52:36,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:52:36,998 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:52:36,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:52:36,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:52:36,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:52:36,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:52:36,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:52:36,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:52:36,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:52:36,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:52:37,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:52:37,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:52:37,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:52:37,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:52:37,000 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 23:52:37,325 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:52:37,341 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:52:37,347 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:52:37,349 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:52:37,349 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:52:37,350 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/copy-partial-2-n-u.c [2019-10-14 23:52:37,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f777d13d5/28988430275b42ffb386c70b6d4b234c/FLAGdc3d13aa6 [2019-10-14 23:52:37,929 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:52:37,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/copy-partial-2-n-u.c [2019-10-14 23:52:37,938 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f777d13d5/28988430275b42ffb386c70b6d4b234c/FLAGdc3d13aa6 [2019-10-14 23:52:38,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f777d13d5/28988430275b42ffb386c70b6d4b234c [2019-10-14 23:52:38,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:52:38,254 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:52:38,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:38,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:52:38,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:52:38,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:38" (1/1) ... [2019-10-14 23:52:38,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c66bfa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:38, skipping insertion in model container [2019-10-14 23:52:38,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:38" (1/1) ... [2019-10-14 23:52:38,270 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:52:38,289 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:52:38,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:38,478 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:52:38,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:38,525 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:52:38,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:38 WrapperNode [2019-10-14 23:52:38,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:38,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:52:38,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:52:38,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:52:38,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:38" (1/1) ... [2019-10-14 23:52:38,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:38" (1/1) ... [2019-10-14 23:52:38,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:38" (1/1) ... [2019-10-14 23:52:38,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:38" (1/1) ... [2019-10-14 23:52:38,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:38" (1/1) ... [2019-10-14 23:52:38,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:38" (1/1) ... [2019-10-14 23:52:38,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:38" (1/1) ... [2019-10-14 23:52:38,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:52:38,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:52:38,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:52:38,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:52:38,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:38" (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 23:52:38,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:52:38,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:52:38,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:52:38,701 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:52:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:52:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:52:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:52:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:52:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:52:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:52:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:52:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:52:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:52:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:52:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:52:39,009 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:52:39,009 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-14 23:52:39,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:39 BoogieIcfgContainer [2019-10-14 23:52:39,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:52:39,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:52:39,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:52:39,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:52:39,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:52:38" (1/3) ... [2019-10-14 23:52:39,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158ae1ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:39, skipping insertion in model container [2019-10-14 23:52:39,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:38" (2/3) ... [2019-10-14 23:52:39,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158ae1ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:39, skipping insertion in model container [2019-10-14 23:52:39,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:39" (3/3) ... [2019-10-14 23:52:39,022 INFO L109 eAbstractionObserver]: Analyzing ICFG copy-partial-2-n-u.c [2019-10-14 23:52:39,035 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:52:39,048 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:52:39,064 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:52:39,092 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:52:39,093 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:52:39,093 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:52:39,093 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:52:39,094 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:52:39,094 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:52:39,094 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:52:39,094 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:52:39,113 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-10-14 23:52:39,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-14 23:52:39,120 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:39,122 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:39,124 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:39,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:39,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1035913628, now seen corresponding path program 1 times [2019-10-14 23:52:39,149 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:39,149 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030564862] [2019-10-14 23:52:39,149 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:39,150 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:39,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:39,235 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-14 23:52:39,236 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1662878119] [2019-10-14 23:52:39,236 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 23:52:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:39,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:52:39,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:52:39,352 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 23:52:39,353 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:52:39,380 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 23:52:39,381 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030564862] [2019-10-14 23:52:39,381 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-14 23:52:39,382 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662878119] [2019-10-14 23:52:39,383 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:39,383 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-14 23:52:39,383 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732110528] [2019-10-14 23:52:39,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:52:39,390 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:39,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:52:39,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:52:39,409 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2019-10-14 23:52:39,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:39,505 INFO L93 Difference]: Finished difference Result 58 states and 89 transitions. [2019-10-14 23:52:39,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:52:39,507 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-10-14 23:52:39,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:39,518 INFO L225 Difference]: With dead ends: 58 [2019-10-14 23:52:39,518 INFO L226 Difference]: Without dead ends: 29 [2019-10-14 23:52:39,521 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 [2019-10-14 23:52:39,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-14 23:52:39,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-10-14 23:52:39,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-14 23:52:39,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2019-10-14 23:52:39,568 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 16 [2019-10-14 23:52:39,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:39,569 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2019-10-14 23:52:39,569 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:52:39,569 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2019-10-14 23:52:39,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-14 23:52:39,570 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:39,571 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:39,775 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:39,775 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:39,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:39,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1916059548, now seen corresponding path program 1 times [2019-10-14 23:52:39,777 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:39,778 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703738123] [2019-10-14 23:52:39,778 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:39,778 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:39,778 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:39,803 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-14 23:52:39,803 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1799079742] [2019-10-14 23:52:39,804 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 [2019-10-14 23:52:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:39,880 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:52:39,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:52:39,908 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-14 23:52:39,908 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:52:39,932 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-14 23:52:39,933 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703738123] [2019-10-14 23:52:39,933 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-14 23:52:39,933 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799079742] [2019-10-14 23:52:39,934 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:39,934 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-14 23:52:39,934 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875984701] [2019-10-14 23:52:39,936 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:52:39,936 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:39,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:52:39,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:52:39,937 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand 6 states. [2019-10-14 23:52:40,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:40,056 INFO L93 Difference]: Finished difference Result 72 states and 95 transitions. [2019-10-14 23:52:40,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:52:40,057 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-10-14 23:52:40,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:40,060 INFO L225 Difference]: With dead ends: 72 [2019-10-14 23:52:40,061 INFO L226 Difference]: Without dead ends: 51 [2019-10-14 23:52:40,062 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 [2019-10-14 23:52:40,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-10-14 23:52:40,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 33. [2019-10-14 23:52:40,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-10-14 23:52:40,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2019-10-14 23:52:40,077 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 22 [2019-10-14 23:52:40,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:40,078 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2019-10-14 23:52:40,078 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:52:40,078 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2019-10-14 23:52:40,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-14 23:52:40,079 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:40,079 INFO L380 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:40,284 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:40,284 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:40,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:40,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1522481052, now seen corresponding path program 1 times [2019-10-14 23:52:40,286 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:40,287 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47780702] [2019-10-14 23:52:40,287 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:40,287 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:40,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:40,299 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-14 23:52:40,299 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1064227764] [2019-10-14 23:52:40,299 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 [2019-10-14 23:52:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:40,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-14 23:52:40,356 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:52:40,409 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-14 23:52:40,409 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:52:40,451 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-14 23:52:40,452 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47780702] [2019-10-14 23:52:40,452 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-14 23:52:40,452 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064227764] [2019-10-14 23:52:40,453 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1187696276] [2019-10-14 23:52:40,459 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 27 [2019-10-14 23:52:40,498 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-14 23:52:40,498 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 23:52:40,550 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-14 23:52:40,552 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 25 variables. [2019-10-14 23:52:40,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:40,555 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-14 23:52:40,589 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-14 23:52:40,590 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-14 23:52:40,591 INFO L553 sIntCurrentIteration]: We unified 25 AI predicates to 25 [2019-10-14 23:52:40,591 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-14 23:52:40,592 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:52:40,592 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6, 6] total 10 [2019-10-14 23:52:40,593 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868046354] [2019-10-14 23:52:40,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:52:40,594 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:40,594 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-14 23:52:40,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:52:40,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:40,595 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand 2 states. [2019-10-14 23:52:40,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:40,597 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-10-14 23:52:40,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:52:40,598 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2019-10-14 23:52:40,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:40,598 INFO L225 Difference]: With dead ends: 33 [2019-10-14 23:52:40,598 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:52:40,599 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 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 23:52:40,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:52:40,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:52:40,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:52:40,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:52:40,600 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2019-10-14 23:52:40,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:40,600 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:52:40,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:52:40,601 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:52:40,601 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:52:40,805 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:40,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:52:40,843 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:40,843 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:40,843 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:40,843 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:40,844 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-14 23:52:40,844 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:40,844 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:40,844 INFO L439 ceAbstractionStarter]: At program point L60(line 60) the Hoare annotation is: false [2019-10-14 23:52:40,844 INFO L443 ceAbstractionStarter]: For program point L60-1(line 60) no Hoare annotation was computed. [2019-10-14 23:52:40,844 INFO L439 ceAbstractionStarter]: At program point L27-2(lines 27 36) the Hoare annotation is: false [2019-10-14 23:52:40,844 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 69) no Hoare annotation was computed. [2019-10-14 23:52:40,845 INFO L443 ceAbstractionStarter]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2019-10-14 23:52:40,845 INFO L439 ceAbstractionStarter]: At program point L56-2(lines 56 65) the Hoare annotation is: false [2019-10-14 23:52:40,845 INFO L443 ceAbstractionStarter]: For program point L56-3(lines 56 65) no Hoare annotation was computed. [2019-10-14 23:52:40,845 INFO L439 ceAbstractionStarter]: At program point L40-2(lines 40 49) the Hoare annotation is: false [2019-10-14 23:52:40,845 INFO L443 ceAbstractionStarter]: For program point L40-3(lines 40 49) no Hoare annotation was computed. [2019-10-14 23:52:40,845 INFO L439 ceAbstractionStarter]: At program point L29-2(lines 29 34) the Hoare annotation is: false [2019-10-14 23:52:40,846 INFO L443 ceAbstractionStarter]: For program point L29-3(lines 29 34) no Hoare annotation was computed. [2019-10-14 23:52:40,846 INFO L439 ceAbstractionStarter]: At program point L58-2(lines 58 63) the Hoare annotation is: false [2019-10-14 23:52:40,846 INFO L443 ceAbstractionStarter]: For program point L58-3(lines 58 63) no Hoare annotation was computed. [2019-10-14 23:52:40,846 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 11 69) no Hoare annotation was computed. [2019-10-14 23:52:40,846 INFO L439 ceAbstractionStarter]: At program point L42-2(lines 42 47) the Hoare annotation is: false [2019-10-14 23:52:40,846 INFO L443 ceAbstractionStarter]: For program point L42-3(lines 42 47) no Hoare annotation was computed. [2019-10-14 23:52:40,847 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 11 69) the Hoare annotation is: true [2019-10-14 23:52:40,847 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-14 23:52:40,847 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-14 23:52:40,847 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-14 23:52:40,847 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-14 23:52:40,847 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-14 23:52:40,848 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-14 23:52:40,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:52:40 BoogieIcfgContainer [2019-10-14 23:52:40,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:52:40,860 INFO L168 Benchmark]: Toolchain (without parser) took 2604.78 ms. Allocated memory was 138.4 MB in the beginning and 233.3 MB in the end (delta: 94.9 MB). Free memory was 103.2 MB in the beginning and 177.4 MB in the end (delta: -74.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:40,861 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-14 23:52:40,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.82 ms. Allocated memory is still 138.4 MB. Free memory was 103.0 MB in the beginning and 92.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:40,863 INFO L168 Benchmark]: Boogie Preprocessor took 116.87 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 92.5 MB in the beginning and 176.9 MB in the end (delta: -84.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:40,864 INFO L168 Benchmark]: RCFGBuilder took 368.01 ms. Allocated memory is still 199.2 MB. Free memory was 176.9 MB in the beginning and 160.6 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:40,865 INFO L168 Benchmark]: TraceAbstraction took 1844.72 ms. Allocated memory was 199.2 MB in the beginning and 233.3 MB in the end (delta: 34.1 MB). Free memory was 160.0 MB in the beginning and 177.4 MB in the end (delta: -17.5 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:40,869 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 270.82 ms. Allocated memory is still 138.4 MB. Free memory was 103.0 MB in the beginning and 92.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.87 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 92.5 MB in the beginning and 176.9 MB in the end (delta: -84.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 368.01 ms. Allocated memory is still 199.2 MB. Free memory was 176.9 MB in the beginning and 160.6 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1844.72 ms. Allocated memory was 199.2 MB in the beginning and 233.3 MB in the end (delta: 34.1 MB). Free memory was 160.0 MB in the beginning and 177.4 MB in the end (delta: -17.5 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 30 locations, 1 error locations. Result: SAFE, OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 54 SDslu, 82 SDs, 0 SdLazy, 53 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 14 PreInvPairs, 14 NumberOfFragments, 12 HoareAnnotationTreeSize, 14 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, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 3754 SizeOfPredicates, 6 NumberOfNonLiveVariables, 294 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 42/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 96, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9, AVG_VARS_REMOVED_DURING_WEAKENING: 0.92, AVG_WEAKENED_CONJUNCTS: 0.24, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...