/usr/bin/java -ea -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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test_while_int.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 16:24:53,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 16:24:53,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 16:24:53,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 16:24:53,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 16:24:53,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 16:24:53,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 16:24:53,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 16:24:53,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 16:24:53,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 16:24:53,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 16:24:53,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 16:24:53,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 16:24:53,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 16:24:53,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 16:24:53,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 16:24:53,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 16:24:53,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 16:24:53,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 16:24:53,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 16:24:53,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 16:24:53,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 16:24:53,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 16:24:53,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 16:24:53,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 16:24:53,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 16:24:53,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 16:24:53,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 16:24:53,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 16:24:53,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 16:24:53,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 16:24:53,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 16:24:53,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 16:24:53,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 16:24:53,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 16:24:53,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 16:24:53,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 16:24:53,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 16:24:53,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 16:24:53,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 16:24:53,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 16:24:53,243 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 16:24:53,254 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 16:24:53,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 16:24:53,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 16:24:53,256 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 16:24:53,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 16:24:53,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 16:24:53,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 16:24:53,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 16:24:53,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 16:24:53,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 16:24:53,259 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 16:24:53,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 16:24:53,259 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 16:24:53,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 16:24:53,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 16:24:53,260 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 16:24:53,260 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 16:24:53,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 16:24:53,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 16:24:53,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 16:24:53,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 16:24:53,261 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 16:24:53,262 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 16:24:53,521 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 16:24:53,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 16:24:53,541 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 16:24:53,543 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 16:24:53,544 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 16:24:53,545 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_while_int.i [2020-07-08 16:24:53,624 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5036d3759/377fec006ad34554a4d6480c5581916c/FLAGea999a85d [2020-07-08 16:24:54,090 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 16:24:54,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_while_int.i [2020-07-08 16:24:54,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5036d3759/377fec006ad34554a4d6480c5581916c/FLAGea999a85d [2020-07-08 16:24:54,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5036d3759/377fec006ad34554a4d6480c5581916c [2020-07-08 16:24:54,451 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 16:24:54,453 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 16:24:54,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 16:24:54,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 16:24:54,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 16:24:54,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:24:54" (1/1) ... [2020-07-08 16:24:54,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62444b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:54, skipping insertion in model container [2020-07-08 16:24:54,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:24:54" (1/1) ... [2020-07-08 16:24:54,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 16:24:54,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 16:24:54,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:24:54,653 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 16:24:54,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:24:54,683 INFO L208 MainTranslator]: Completed translation [2020-07-08 16:24:54,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:54 WrapperNode [2020-07-08 16:24:54,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 16:24:54,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 16:24:54,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 16:24:54,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 16:24:54,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:54" (1/1) ... [2020-07-08 16:24:54,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:54" (1/1) ... [2020-07-08 16:24:54,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:54" (1/1) ... [2020-07-08 16:24:54,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:54" (1/1) ... [2020-07-08 16:24:54,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:54" (1/1) ... [2020-07-08 16:24:54,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:54" (1/1) ... [2020-07-08 16:24:54,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:54" (1/1) ... [2020-07-08 16:24:54,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 16:24:54,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 16:24:54,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 16:24:54,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 16:24:54,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:54" (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 [2020-07-08 16:24:54,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 16:24:54,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 16:24:54,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-08 16:24:54,873 INFO L138 BoogieDeclarations]: Found implementation of procedure check_error [2020-07-08 16:24:54,873 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 16:24:54,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 16:24:54,873 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-08 16:24:54,873 INFO L130 BoogieDeclarations]: Found specification of procedure check_error [2020-07-08 16:24:54,873 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 16:24:54,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 16:24:54,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 16:24:55,063 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 16:24:55,063 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-08 16:24:55,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:24:55 BoogieIcfgContainer [2020-07-08 16:24:55,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 16:24:55,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 16:24:55,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 16:24:55,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 16:24:55,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 04:24:54" (1/3) ... [2020-07-08 16:24:55,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44726e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:24:55, skipping insertion in model container [2020-07-08 16:24:55,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:24:54" (2/3) ... [2020-07-08 16:24:55,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44726e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:24:55, skipping insertion in model container [2020-07-08 16:24:55,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:24:55" (3/3) ... [2020-07-08 16:24:55,076 INFO L109 eAbstractionObserver]: Analyzing ICFG test_while_int.i [2020-07-08 16:24:55,090 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 16:24:55,099 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 16:24:55,118 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 16:24:55,164 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 16:24:55,165 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 16:24:55,165 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 16:24:55,165 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 16:24:55,165 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 16:24:55,165 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 16:24:55,166 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 16:24:55,166 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 16:24:55,186 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-07-08 16:24:55,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-08 16:24:55,197 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:24:55,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:24:55,199 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:24:55,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:24:55,206 INFO L82 PathProgramCache]: Analyzing trace with hash -459927168, now seen corresponding path program 1 times [2020-07-08 16:24:55,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:24:55,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532396239] [2020-07-08 16:24:55,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:24:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:24:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:24:55,522 INFO L280 TraceCheckUtils]: 0: Hoare triple {27#true} assume true; {27#true} is VALID [2020-07-08 16:24:55,529 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {27#true} {27#true} #38#return; {27#true} is VALID [2020-07-08 16:24:55,532 INFO L263 TraceCheckUtils]: 0: Hoare triple {27#true} call ULTIMATE.init(); {27#true} is VALID [2020-07-08 16:24:55,533 INFO L280 TraceCheckUtils]: 1: Hoare triple {27#true} assume true; {27#true} is VALID [2020-07-08 16:24:55,534 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {27#true} {27#true} #38#return; {27#true} is VALID [2020-07-08 16:24:55,534 INFO L263 TraceCheckUtils]: 3: Hoare triple {27#true} call #t~ret1 := main(); {27#true} is VALID [2020-07-08 16:24:55,538 INFO L280 TraceCheckUtils]: 4: Hoare triple {27#true} ~i~0 := 0; {31#(<= main_~i~0 0)} is VALID [2020-07-08 16:24:55,547 INFO L280 TraceCheckUtils]: 5: Hoare triple {31#(<= main_~i~0 0)} assume !!(~i~0 < 5); {31#(<= main_~i~0 0)} is VALID [2020-07-08 16:24:55,550 INFO L280 TraceCheckUtils]: 6: Hoare triple {31#(<= main_~i~0 0)} #t~post0 := ~i~0; {32#(<= |main_#t~post0| 0)} is VALID [2020-07-08 16:24:55,553 INFO L280 TraceCheckUtils]: 7: Hoare triple {32#(<= |main_#t~post0| 0)} ~i~0 := 1 + #t~post0; {33#(<= main_~i~0 1)} is VALID [2020-07-08 16:24:55,558 INFO L280 TraceCheckUtils]: 8: Hoare triple {33#(<= main_~i~0 1)} havoc #t~post0; {33#(<= main_~i~0 1)} is VALID [2020-07-08 16:24:55,561 INFO L263 TraceCheckUtils]: 9: Hoare triple {33#(<= main_~i~0 1)} call check_error((if 3 != ~i~0 then 1 else 0)); {34#(not (= 0 |check_error_#in~b|))} is VALID [2020-07-08 16:24:55,563 INFO L280 TraceCheckUtils]: 10: Hoare triple {34#(not (= 0 |check_error_#in~b|))} ~b := #in~b; {35#(not (= 0 check_error_~b))} is VALID [2020-07-08 16:24:55,564 INFO L280 TraceCheckUtils]: 11: Hoare triple {35#(not (= 0 check_error_~b))} assume !(0 != ~b); {28#false} is VALID [2020-07-08 16:24:55,564 INFO L263 TraceCheckUtils]: 12: Hoare triple {28#false} call __blast_assert(); {28#false} is VALID [2020-07-08 16:24:55,565 INFO L280 TraceCheckUtils]: 13: Hoare triple {28#false} assume !false; {28#false} is VALID [2020-07-08 16:24:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:24:55,568 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:24:55,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532396239] [2020-07-08 16:24:55,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:24:55,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-08 16:24:55,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026627221] [2020-07-08 16:24:55,581 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-07-08 16:24:55,585 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:24:55,589 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-08 16:24:55,625 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:24:55,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-08 16:24:55,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:24:55,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-08 16:24:55,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-08 16:24:55,640 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 7 states. [2020-07-08 16:24:56,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:24:56,012 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2020-07-08 16:24:56,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-08 16:24:56,013 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-07-08 16:24:56,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:24:56,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 16:24:56,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 65 transitions. [2020-07-08 16:24:56,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 16:24:56,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 65 transitions. [2020-07-08 16:24:56,034 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 65 transitions. [2020-07-08 16:24:56,150 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:24:56,163 INFO L225 Difference]: With dead ends: 53 [2020-07-08 16:24:56,163 INFO L226 Difference]: Without dead ends: 29 [2020-07-08 16:24:56,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-08 16:24:56,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-07-08 16:24:56,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2020-07-08 16:24:56,234 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:24:56,235 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand 26 states. [2020-07-08 16:24:56,236 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 26 states. [2020-07-08 16:24:56,236 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 26 states. [2020-07-08 16:24:56,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:24:56,241 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-07-08 16:24:56,241 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2020-07-08 16:24:56,242 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:24:56,242 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:24:56,242 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 29 states. [2020-07-08 16:24:56,242 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 29 states. [2020-07-08 16:24:56,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:24:56,246 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-07-08 16:24:56,247 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2020-07-08 16:24:56,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:24:56,247 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:24:56,248 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:24:56,248 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:24:56,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-07-08 16:24:56,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2020-07-08 16:24:56,253 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 14 [2020-07-08 16:24:56,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:24:56,253 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2020-07-08 16:24:56,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-08 16:24:56,253 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 26 states and 26 transitions. [2020-07-08 16:24:56,290 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:24:56,290 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2020-07-08 16:24:56,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-08 16:24:56,291 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:24:56,291 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:24:56,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 16:24:56,292 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:24:56,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:24:56,293 INFO L82 PathProgramCache]: Analyzing trace with hash 299235803, now seen corresponding path program 1 times [2020-07-08 16:24:56,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:24:56,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705602378] [2020-07-08 16:24:56,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:24:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:24:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:24:56,461 INFO L280 TraceCheckUtils]: 0: Hoare triple {260#true} assume true; {260#true} is VALID [2020-07-08 16:24:56,461 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {260#true} {260#true} #38#return; {260#true} is VALID [2020-07-08 16:24:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:24:56,471 INFO L280 TraceCheckUtils]: 0: Hoare triple {260#true} ~b := #in~b; {260#true} is VALID [2020-07-08 16:24:56,472 INFO L280 TraceCheckUtils]: 1: Hoare triple {260#true} assume 0 != ~b; {260#true} is VALID [2020-07-08 16:24:56,472 INFO L280 TraceCheckUtils]: 2: Hoare triple {260#true} assume true; {260#true} is VALID [2020-07-08 16:24:56,473 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {260#true} {266#(<= main_~i~0 1)} #42#return; {266#(<= main_~i~0 1)} is VALID [2020-07-08 16:24:56,474 INFO L263 TraceCheckUtils]: 0: Hoare triple {260#true} call ULTIMATE.init(); {260#true} is VALID [2020-07-08 16:24:56,474 INFO L280 TraceCheckUtils]: 1: Hoare triple {260#true} assume true; {260#true} is VALID [2020-07-08 16:24:56,474 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {260#true} {260#true} #38#return; {260#true} is VALID [2020-07-08 16:24:56,475 INFO L263 TraceCheckUtils]: 3: Hoare triple {260#true} call #t~ret1 := main(); {260#true} is VALID [2020-07-08 16:24:56,475 INFO L280 TraceCheckUtils]: 4: Hoare triple {260#true} ~i~0 := 0; {264#(<= main_~i~0 0)} is VALID [2020-07-08 16:24:56,476 INFO L280 TraceCheckUtils]: 5: Hoare triple {264#(<= main_~i~0 0)} assume !!(~i~0 < 5); {264#(<= main_~i~0 0)} is VALID [2020-07-08 16:24:56,477 INFO L280 TraceCheckUtils]: 6: Hoare triple {264#(<= main_~i~0 0)} #t~post0 := ~i~0; {265#(<= |main_#t~post0| 0)} is VALID [2020-07-08 16:24:56,478 INFO L280 TraceCheckUtils]: 7: Hoare triple {265#(<= |main_#t~post0| 0)} ~i~0 := 1 + #t~post0; {266#(<= main_~i~0 1)} is VALID [2020-07-08 16:24:56,479 INFO L280 TraceCheckUtils]: 8: Hoare triple {266#(<= main_~i~0 1)} havoc #t~post0; {266#(<= main_~i~0 1)} is VALID [2020-07-08 16:24:56,479 INFO L263 TraceCheckUtils]: 9: Hoare triple {266#(<= main_~i~0 1)} call check_error((if 3 != ~i~0 then 1 else 0)); {260#true} is VALID [2020-07-08 16:24:56,479 INFO L280 TraceCheckUtils]: 10: Hoare triple {260#true} ~b := #in~b; {260#true} is VALID [2020-07-08 16:24:56,480 INFO L280 TraceCheckUtils]: 11: Hoare triple {260#true} assume 0 != ~b; {260#true} is VALID [2020-07-08 16:24:56,480 INFO L280 TraceCheckUtils]: 12: Hoare triple {260#true} assume true; {260#true} is VALID [2020-07-08 16:24:56,481 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {260#true} {266#(<= main_~i~0 1)} #42#return; {266#(<= main_~i~0 1)} is VALID [2020-07-08 16:24:56,482 INFO L280 TraceCheckUtils]: 14: Hoare triple {266#(<= main_~i~0 1)} assume !!(~i~0 < 5); {266#(<= main_~i~0 1)} is VALID [2020-07-08 16:24:56,482 INFO L280 TraceCheckUtils]: 15: Hoare triple {266#(<= main_~i~0 1)} #t~post0 := ~i~0; {271#(<= |main_#t~post0| 1)} is VALID [2020-07-08 16:24:56,483 INFO L280 TraceCheckUtils]: 16: Hoare triple {271#(<= |main_#t~post0| 1)} ~i~0 := 1 + #t~post0; {272#(<= main_~i~0 2)} is VALID [2020-07-08 16:24:56,484 INFO L280 TraceCheckUtils]: 17: Hoare triple {272#(<= main_~i~0 2)} havoc #t~post0; {272#(<= main_~i~0 2)} is VALID [2020-07-08 16:24:56,485 INFO L263 TraceCheckUtils]: 18: Hoare triple {272#(<= main_~i~0 2)} call check_error((if 3 != ~i~0 then 1 else 0)); {273#(not (= 0 |check_error_#in~b|))} is VALID [2020-07-08 16:24:56,486 INFO L280 TraceCheckUtils]: 19: Hoare triple {273#(not (= 0 |check_error_#in~b|))} ~b := #in~b; {274#(not (= 0 check_error_~b))} is VALID [2020-07-08 16:24:56,487 INFO L280 TraceCheckUtils]: 20: Hoare triple {274#(not (= 0 check_error_~b))} assume !(0 != ~b); {261#false} is VALID [2020-07-08 16:24:56,487 INFO L263 TraceCheckUtils]: 21: Hoare triple {261#false} call __blast_assert(); {261#false} is VALID [2020-07-08 16:24:56,488 INFO L280 TraceCheckUtils]: 22: Hoare triple {261#false} assume !false; {261#false} is VALID [2020-07-08 16:24:56,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:24:56,490 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:24:56,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705602378] [2020-07-08 16:24:56,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:24:56,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-08 16:24:56,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844139176] [2020-07-08 16:24:56,492 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-07-08 16:24:56,492 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:24:56,492 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-08 16:24:56,518 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:24:56,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-08 16:24:56,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:24:56,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-08 16:24:56,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-08 16:24:56,520 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 9 states. [2020-07-08 16:24:56,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:24:56,813 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2020-07-08 16:24:56,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-08 16:24:56,814 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-07-08 16:24:56,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:24:56,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 16:24:56,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 38 transitions. [2020-07-08 16:24:56,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 16:24:56,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 38 transitions. [2020-07-08 16:24:56,821 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 38 transitions. [2020-07-08 16:24:56,890 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:24:56,893 INFO L225 Difference]: With dead ends: 41 [2020-07-08 16:24:56,893 INFO L226 Difference]: Without dead ends: 38 [2020-07-08 16:24:56,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-07-08 16:24:56,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-07-08 16:24:56,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2020-07-08 16:24:56,951 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:24:56,952 INFO L82 GeneralOperation]: Start isEquivalent. First operand 38 states. Second operand 35 states. [2020-07-08 16:24:56,952 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 35 states. [2020-07-08 16:24:56,952 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 35 states. [2020-07-08 16:24:56,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:24:56,958 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2020-07-08 16:24:56,958 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2020-07-08 16:24:56,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:24:56,960 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:24:56,960 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 38 states. [2020-07-08 16:24:56,960 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 38 states. [2020-07-08 16:24:56,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:24:56,965 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2020-07-08 16:24:56,965 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2020-07-08 16:24:56,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:24:56,966 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:24:56,966 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:24:56,966 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:24:56,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-08 16:24:56,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2020-07-08 16:24:56,976 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 23 [2020-07-08 16:24:56,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:24:56,977 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2020-07-08 16:24:56,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-08 16:24:56,977 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 35 states and 35 transitions. [2020-07-08 16:24:57,021 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:24:57,021 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2020-07-08 16:24:57,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-08 16:24:57,023 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:24:57,024 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 16:24:57,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 16:24:57,024 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:24:57,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:24:57,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1072281632, now seen corresponding path program 2 times [2020-07-08 16:24:57,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:24:57,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201403928] [2020-07-08 16:24:57,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:24:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 16:24:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 16:24:57,137 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:24:57,137 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-08 16:24:57,137 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-08 16:24:57,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 16:24:57,153 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 16:24:57,154 WARN L170 areAnnotationChecker]: check_errorENTRY has no Hoare annotation [2020-07-08 16:24:57,154 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 16:24:57,154 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 16:24:57,154 WARN L170 areAnnotationChecker]: __blast_assertENTRY has no Hoare annotation [2020-07-08 16:24:57,154 WARN L170 areAnnotationChecker]: __blast_assertENTRY has no Hoare annotation [2020-07-08 16:24:57,154 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-08 16:24:57,155 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 16:24:57,155 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-08 16:24:57,155 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-08 16:24:57,155 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 16:24:57,155 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 16:24:57,155 WARN L170 areAnnotationChecker]: __blast_assertFINAL has no Hoare annotation [2020-07-08 16:24:57,156 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-08 16:24:57,156 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-08 16:24:57,156 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-08 16:24:57,156 WARN L170 areAnnotationChecker]: L18-3 has no Hoare annotation [2020-07-08 16:24:57,156 WARN L170 areAnnotationChecker]: L18-2 has no Hoare annotation [2020-07-08 16:24:57,156 WARN L170 areAnnotationChecker]: L18-2 has no Hoare annotation [2020-07-08 16:24:57,156 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 16:24:57,157 WARN L170 areAnnotationChecker]: __blast_assertEXIT has no Hoare annotation [2020-07-08 16:24:57,157 WARN L170 areAnnotationChecker]: L24-2 has no Hoare annotation [2020-07-08 16:24:57,157 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-08 16:24:57,157 WARN L170 areAnnotationChecker]: check_errorEXIT has no Hoare annotation [2020-07-08 16:24:57,157 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 16:24:57,157 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2020-07-08 16:24:57,157 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 16:24:57,158 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2020-07-08 16:24:57,158 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-08 16:24:57,158 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-08 16:24:57,158 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 16:24:57,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 04:24:57 BoogieIcfgContainer [2020-07-08 16:24:57,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 16:24:57,165 INFO L168 Benchmark]: Toolchain (without parser) took 2711.50 ms. Allocated memory was 139.5 MB in the beginning and 234.4 MB in the end (delta: 94.9 MB). Free memory was 103.3 MB in the beginning and 87.4 MB in the end (delta: 15.9 MB). Peak memory consumption was 110.8 MB. Max. memory is 7.1 GB. [2020-07-08 16:24:57,166 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-08 16:24:57,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.43 ms. Allocated memory is still 139.5 MB. Free memory was 103.1 MB in the beginning and 93.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-07-08 16:24:57,168 INFO L168 Benchmark]: Boogie Preprocessor took 116.11 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 93.8 MB in the beginning and 184.7 MB in the end (delta: -90.9 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2020-07-08 16:24:57,169 INFO L168 Benchmark]: RCFGBuilder took 265.97 ms. Allocated memory is still 204.5 MB. Free memory was 184.7 MB in the beginning and 169.8 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2020-07-08 16:24:57,170 INFO L168 Benchmark]: TraceAbstraction took 2093.51 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 169.8 MB in the beginning and 87.4 MB in the end (delta: 82.3 MB). Peak memory consumption was 112.2 MB. Max. memory is 7.1 GB. [2020-07-08 16:24:57,181 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 230.43 ms. Allocated memory is still 139.5 MB. Free memory was 103.1 MB in the beginning and 93.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.11 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 93.8 MB in the beginning and 184.7 MB in the end (delta: -90.9 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 265.97 ms. Allocated memory is still 204.5 MB. Free memory was 184.7 MB in the beginning and 169.8 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2093.51 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 169.8 MB in the beginning and 87.4 MB in the end (delta: 82.3 MB). Peak memory consumption was 112.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L23] int i=0; [L24] COND TRUE i<5 [L25] i++ [L29] CALL check_error(i!=3) [L18] (b) ? (0) : __blast_assert () [L29] RET check_error(i!=3) [L24] COND TRUE i<5 [L25] i++ [L29] CALL check_error(i!=3) [L18] (b) ? (0) : __blast_assert () [L29] RET check_error(i!=3) [L24] COND TRUE i<5 [L25] i++ [L29] CALL check_error(i!=3) [L18] (b) ? (0) : __blast_assert () [L18] CALL __blast_assert () [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 25 SDslu, 121 SDs, 0 SdLazy, 86 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 incorrect! Received shutdown request...