/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:11:43,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:11:43,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:11:43,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:11:43,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:11:43,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:11:43,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:11:43,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:11:43,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:11:43,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:11:43,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:11:43,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:11:43,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:11:43,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:11:43,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:11:43,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:11:43,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:11:43,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:11:43,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:11:43,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:11:43,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:11:43,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:11:43,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:11:43,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:11:43,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:11:43,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:11:43,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:11:43,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:11:43,305 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 11:11:43,348 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:11:43,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:11:43,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:11:43,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:11:43,352 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:11:43,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:11:43,352 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:11:43,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:11:43,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:11:43,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:11:43,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:11:43,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:11:43,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:11:43,353 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:11:43,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:11:43,353 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:11:43,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:11:43,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:11:43,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:11:43,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:11:43,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:11:43,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:11:43,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:11:43,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:11:43,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:11:43,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:11:43,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:11:43,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:11:43,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:11:43,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:11:43,672 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:11:43,686 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:11:43,690 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:11:43,692 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:11:43,693 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:11:43,693 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c [2020-07-21 11:11:43,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c94668353/761b129facc7482e804ac6248a6189f1/FLAG411588e2b [2020-07-21 11:11:44,294 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:11:44,295 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c [2020-07-21 11:11:44,303 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c94668353/761b129facc7482e804ac6248a6189f1/FLAG411588e2b [2020-07-21 11:11:44,629 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c94668353/761b129facc7482e804ac6248a6189f1 [2020-07-21 11:11:44,639 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:11:44,642 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:11:44,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:11:44,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:11:44,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:11:44,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:11:44" (1/1) ... [2020-07-21 11:11:44,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15875eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:44, skipping insertion in model container [2020-07-21 11:11:44,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:11:44" (1/1) ... [2020-07-21 11:11:44,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:11:44,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:11:44,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:11:44,855 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:11:44,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:11:44,887 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:11:44,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:44 WrapperNode [2020-07-21 11:11:44,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:11:44,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:11:44,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:11:44,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:11:44,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:44" (1/1) ... [2020-07-21 11:11:44,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:44" (1/1) ... [2020-07-21 11:11:45,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:44" (1/1) ... [2020-07-21 11:11:45,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:44" (1/1) ... [2020-07-21 11:11:45,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:44" (1/1) ... [2020-07-21 11:11:45,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:44" (1/1) ... [2020-07-21 11:11:45,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:44" (1/1) ... [2020-07-21 11:11:45,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:11:45,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:11:45,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:11:45,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:11:45,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:11:45,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:11:45,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:11:45,079 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2020-07-21 11:11:45,079 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-07-21 11:11:45,079 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:11:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:11:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-07-21 11:11:45,079 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2020-07-21 11:11:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 11:11:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 11:11:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:11:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 11:11:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 11:11:45,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 11:11:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:11:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:11:45,326 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:11:45,326 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 11:11:45,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:11:45 BoogieIcfgContainer [2020-07-21 11:11:45,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:11:45,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:11:45,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:11:45,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:11:45,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:11:44" (1/3) ... [2020-07-21 11:11:45,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e837e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:11:45, skipping insertion in model container [2020-07-21 11:11:45,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:44" (2/3) ... [2020-07-21 11:11:45,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e837e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:11:45, skipping insertion in model container [2020-07-21 11:11:45,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:11:45" (3/3) ... [2020-07-21 11:11:45,340 INFO L109 eAbstractionObserver]: Analyzing ICFG simple-recursive.c [2020-07-21 11:11:45,356 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:11:45,366 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:11:45,385 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:11:45,428 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:11:45,428 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:11:45,428 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:11:45,428 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:11:45,429 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:11:45,429 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:11:45,429 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:11:45,429 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:11:45,486 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-07-21 11:11:45,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-21 11:11:45,493 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:11:45,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:11:45,495 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:11:45,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:11:45,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1703201428, now seen corresponding path program 1 times [2020-07-21 11:11:45,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:11:45,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [29603377] [2020-07-21 11:11:45,508 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:11:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:11:45,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-21 11:11:45,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:11:45,677 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-07-21 11:11:45,678 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:11:45,697 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 11:11:45,698 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 11:11:45,698 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-07-21 11:11:45,795 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2020-07-21 11:11:45,798 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:11:45,803 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 11:11:45,803 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 11:11:45,804 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:1 [2020-07-21 11:11:45,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:11:45,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:11:45,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [29603377] [2020-07-21 11:11:45,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:11:45,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:11:45,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871806292] [2020-07-21 11:11:45,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:11:45,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:11:45,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:11:45,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:11:45,835 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-07-21 11:11:45,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:11:45,930 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2020-07-21 11:11:45,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:11:45,933 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-21 11:11:45,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:11:45,943 INFO L225 Difference]: With dead ends: 39 [2020-07-21 11:11:45,943 INFO L226 Difference]: Without dead ends: 18 [2020-07-21 11:11:45,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:11:45,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-21 11:11:45,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-07-21 11:11:45,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-21 11:11:45,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-07-21 11:11:45,987 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 11 [2020-07-21 11:11:45,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:11:45,988 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-07-21 11:11:45,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:11:45,988 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-07-21 11:11:45,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-21 11:11:45,989 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:11:45,989 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:11:46,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:11:46,204 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:11:46,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:11:46,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1207469216, now seen corresponding path program 1 times [2020-07-21 11:11:46,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:11:46,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886545118] [2020-07-21 11:11:46,206 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:11:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:11:46,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 11:11:46,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:11:46,296 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-07-21 11:11:46,297 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:11:46,300 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 11:11:46,301 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 11:11:46,301 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-07-21 11:11:46,351 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-07-21 11:11:46,353 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:11:46,356 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 11:11:46,356 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 11:11:46,357 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:7 [2020-07-21 11:11:46,416 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2020-07-21 11:11:46,418 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:11:46,420 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 11:11:46,420 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 11:11:46,421 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:1 [2020-07-21 11:11:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:11:46,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:11:46,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:11:46,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886545118] [2020-07-21 11:11:46,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:11:46,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2020-07-21 11:11:46,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857367406] [2020-07-21 11:11:46,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-21 11:11:46,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:11:46,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-21 11:11:46,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2020-07-21 11:11:46,687 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 17 states. [2020-07-21 11:11:47,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:11:47,002 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2020-07-21 11:11:47,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 11:11:47,002 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 16 [2020-07-21 11:11:47,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:11:47,003 INFO L225 Difference]: With dead ends: 32 [2020-07-21 11:11:47,004 INFO L226 Difference]: Without dead ends: 28 [2020-07-21 11:11:47,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2020-07-21 11:11:47,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-21 11:11:47,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2020-07-21 11:11:47,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-07-21 11:11:47,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2020-07-21 11:11:47,013 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 16 [2020-07-21 11:11:47,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:11:47,014 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2020-07-21 11:11:47,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-21 11:11:47,014 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2020-07-21 11:11:47,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-21 11:11:47,015 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:11:47,015 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:11:47,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:11:47,231 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:11:47,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:11:47,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1116654880, now seen corresponding path program 2 times [2020-07-21 11:11:47,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:11:47,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [599556961] [2020-07-21 11:11:47,233 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:11:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:11:47,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 39 conjunts are in the unsatisfiable core [2020-07-21 11:11:47,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:11:47,313 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2020-07-21 11:11:47,314 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:11:47,321 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 11:11:47,322 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 11:11:47,322 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:1 [2020-07-21 11:11:47,349 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-07-21 11:11:47,350 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:11:47,353 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 11:11:47,353 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 11:11:47,354 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:7 [2020-07-21 11:11:47,392 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2020-07-21 11:11:47,393 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:11:47,398 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 11:11:47,399 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 11:11:47,399 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:7 [2020-07-21 11:11:47,417 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-21 11:11:47,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:11:47,493 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-21 11:11:47,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [599556961] [2020-07-21 11:11:47,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:11:47,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-07-21 11:11:47,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530441932] [2020-07-21 11:11:47,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 11:11:47,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:11:47,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 11:11:47,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-07-21 11:11:47,497 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 11 states. [2020-07-21 11:11:47,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:11:47,607 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2020-07-21 11:11:47,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 11:11:47,607 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2020-07-21 11:11:47,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:11:47,608 INFO L225 Difference]: With dead ends: 27 [2020-07-21 11:11:47,608 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:11:47,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-07-21 11:11:47,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:11:47,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:11:47,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:11:47,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:11:47,611 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2020-07-21 11:11:47,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:11:47,611 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:11:47,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 11:11:47,612 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:11:47,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:11:47,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:11:47,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:11:48,214 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:11:48,215 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:11:48,215 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:11:48,215 INFO L268 CegarLoopResult]: For program point fooEXIT(lines 9 18) no Hoare annotation was computed. [2020-07-21 11:11:48,216 INFO L264 CegarLoopResult]: At program point fooENTRY(lines 9 18) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse1 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (or (not (= 10 .cse0)) (= 10 .cse1)) (or (= 11 .cse1) (not (= 11 .cse0))) (or (not (<= .cse0 20)) (<= .cse1 20)))) [2020-07-21 11:11:48,216 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-07-21 11:11:48,216 INFO L268 CegarLoopResult]: For program point fooErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-07-21 11:11:48,216 INFO L268 CegarLoopResult]: For program point L12(lines 12 17) no Hoare annotation was computed. [2020-07-21 11:11:48,217 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| foo_~p.base) foo_~p.offset)) (.cse2 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (or (not (= 10 .cse0)) (and (= 10 .cse1) (= 10 .cse2))) (or (not (<= .cse0 20)) (and (<= .cse1 19) (<= .cse2 20))) (or (= 11 .cse2) (not (= 11 .cse0))))) [2020-07-21 11:11:48,217 INFO L268 CegarLoopResult]: For program point L10(lines 10 17) no Hoare annotation was computed. [2020-07-21 11:11:48,217 INFO L268 CegarLoopResult]: For program point L10-1(lines 9 18) no Hoare annotation was computed. [2020-07-21 11:11:48,217 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:11:48,217 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 11:11:48,218 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:11:48,218 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:11:48,218 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 20 26) the Hoare annotation is: true [2020-07-21 11:11:48,218 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 20 26) no Hoare annotation was computed. [2020-07-21 11:11:48,218 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (= 10 (select (select |#memory_int| main_~p~0.base) main_~p~0.offset)) [2020-07-21 11:11:48,219 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 20 26) no Hoare annotation was computed. [2020-07-21 11:11:48,219 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-07-21 11:11:48,219 INFO L268 CegarLoopResult]: For program point plusFINAL(lines 4 7) no Hoare annotation was computed. [2020-07-21 11:11:48,219 INFO L264 CegarLoopResult]: At program point plusENTRY(lines 4 7) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse1 (select (select |#memory_int| |plus_#in~p.base|) |plus_#in~p.offset|))) (and (or (not (= 10 .cse0)) (= 10 .cse1)) (or (not (<= .cse0 19)) (< .cse1 19) (= 19 .cse1)))) [2020-07-21 11:11:48,219 INFO L268 CegarLoopResult]: For program point plusEXIT(lines 4 7) no Hoare annotation was computed. [2020-07-21 11:11:48,220 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse1 (select (select |#memory_int| plus_~p.base) plus_~p.offset))) (and (or (not (= 10 .cse0)) (and (= 11 .cse1) (let ((.cse2 (select (select |#memory_int| |plus_#in~p.base|) |plus_#in~p.offset|))) (or (< .cse2 19) (= 19 .cse2))))) (or (< .cse1 20) (not (<= .cse0 19)) (= 20 .cse1)))) [2020-07-21 11:11:48,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:11:48 BoogieIcfgContainer [2020-07-21 11:11:48,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:11:48,229 INFO L168 Benchmark]: Toolchain (without parser) took 3587.82 ms. Allocated memory was 136.8 MB in the beginning and 250.6 MB in the end (delta: 113.8 MB). Free memory was 101.8 MB in the beginning and 219.6 MB in the end (delta: -117.8 MB). Peak memory consumption was 118.6 MB. Max. memory is 7.1 GB. [2020-07-21 11:11:48,230 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-21 11:11:48,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.09 ms. Allocated memory is still 136.8 MB. Free memory was 101.4 MB in the beginning and 91.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-21 11:11:48,232 INFO L168 Benchmark]: Boogie Preprocessor took 127.07 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 178.8 MB in the end (delta: -87.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-07-21 11:11:48,233 INFO L168 Benchmark]: RCFGBuilder took 315.37 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 164.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2020-07-21 11:11:48,234 INFO L168 Benchmark]: TraceAbstraction took 2893.79 ms. Allocated memory was 200.8 MB in the beginning and 250.6 MB in the end (delta: 49.8 MB). Free memory was 164.2 MB in the beginning and 219.6 MB in the end (delta: -55.4 MB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. [2020-07-21 11:11:48,238 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 245.09 ms. Allocated memory is still 136.8 MB. Free memory was 101.4 MB in the beginning and 91.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.07 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 178.8 MB in the end (delta: -87.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 315.37 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 164.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2893.79 ms. Allocated memory was 200.8 MB in the beginning and 250.6 MB in the end (delta: 49.8 MB). Free memory was 164.2 MB in the beginning and 219.6 MB in the end (delta: -55.4 MB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 7 SDslu, 202 SDs, 0 SdLazy, 221 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 62 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 19 PreInvPairs, 19 NumberOfFragments, 221 HoareAnnotationTreeSize, 19 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 266 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 7250 SizeOfPredicates, 30 NumberOfNonLiveVariables, 309 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 40/46 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...