/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/loop-invgen/id_trans.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 20:24:13,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 20:24:13,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 20:24:13,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 20:24:13,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 20:24:13,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 20:24:13,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 20:24:13,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 20:24:13,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 20:24:13,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 20:24:13,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 20:24:13,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 20:24:13,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 20:24:13,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 20:24:13,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 20:24:13,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 20:24:13,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 20:24:13,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 20:24:13,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 20:24:13,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 20:24:13,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 20:24:13,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 20:24:13,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 20:24:13,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 20:24:13,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 20:24:13,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 20:24:13,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 20:24:13,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 20:24:13,220 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 20:24:13,249 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 20:24:13,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 20:24:13,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 20:24:13,253 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 20:24:13,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 20:24:13,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 20:24:13,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 20:24:13,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 20:24:13,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 20:24:13,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 20:24:13,255 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 20:24:13,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 20:24:13,255 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 20:24:13,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 20:24:13,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 20:24:13,259 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 20:24:13,259 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 20:24:13,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 20:24:13,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 20:24:13,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 20:24:13,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 20:24:13,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 20:24:13,260 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 20:24:13,543 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 20:24:13,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 20:24:13,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 20:24:13,562 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 20:24:13,563 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 20:24:13,564 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_trans.i [2020-07-10 20:24:13,628 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9d13d000/32d52611ed5e4daca60669ece8ba4ca5/FLAGedc081877 [2020-07-10 20:24:14,088 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 20:24:14,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_trans.i [2020-07-10 20:24:14,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9d13d000/32d52611ed5e4daca60669ece8ba4ca5/FLAGedc081877 [2020-07-10 20:24:14,428 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9d13d000/32d52611ed5e4daca60669ece8ba4ca5 [2020-07-10 20:24:14,439 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 20:24:14,441 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 20:24:14,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 20:24:14,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 20:24:14,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 20:24:14,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 08:24:14" (1/1) ... [2020-07-10 20:24:14,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf275e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:14, skipping insertion in model container [2020-07-10 20:24:14,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 08:24:14" (1/1) ... [2020-07-10 20:24:14,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 20:24:14,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 20:24:14,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 20:24:14,659 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 20:24:14,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 20:24:14,696 INFO L208 MainTranslator]: Completed translation [2020-07-10 20:24:14,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:14 WrapperNode [2020-07-10 20:24:14,697 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 20:24:14,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 20:24:14,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 20:24:14,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 20:24:14,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:14" (1/1) ... [2020-07-10 20:24:14,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:14" (1/1) ... [2020-07-10 20:24:14,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:14" (1/1) ... [2020-07-10 20:24:14,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:14" (1/1) ... [2020-07-10 20:24:14,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:14" (1/1) ... [2020-07-10 20:24:14,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:14" (1/1) ... [2020-07-10 20:24:14,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:14" (1/1) ... [2020-07-10 20:24:14,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 20:24:14,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 20:24:14,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 20:24:14,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 20:24:14,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:14" (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 [2020-07-10 20:24:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 20:24:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 20:24:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-10 20:24:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 20:24:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 20:24:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 20:24:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 20:24:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-10 20:24:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 20:24:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 20:24:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 20:24:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 20:24:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 20:24:15,292 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 20:24:15,292 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-10 20:24:15,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 08:24:15 BoogieIcfgContainer [2020-07-10 20:24:15,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 20:24:15,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 20:24:15,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 20:24:15,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 20:24:15,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 08:24:14" (1/3) ... [2020-07-10 20:24:15,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232ddcc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 08:24:15, skipping insertion in model container [2020-07-10 20:24:15,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:14" (2/3) ... [2020-07-10 20:24:15,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232ddcc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 08:24:15, skipping insertion in model container [2020-07-10 20:24:15,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 08:24:15" (3/3) ... [2020-07-10 20:24:15,306 INFO L109 eAbstractionObserver]: Analyzing ICFG id_trans.i [2020-07-10 20:24:15,317 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 20:24:15,325 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 20:24:15,340 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 20:24:15,363 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 20:24:15,364 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 20:24:15,364 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 20:24:15,364 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 20:24:15,364 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 20:24:15,364 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 20:24:15,365 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 20:24:15,365 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 20:24:15,382 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-10 20:24:15,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-10 20:24:15,394 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:24:15,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 20:24:15,395 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:24:15,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:24:15,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1049898450, now seen corresponding path program 1 times [2020-07-10 20:24:15,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:24:15,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184805955] [2020-07-10 20:24:15,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:24:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:15,717 INFO L280 TraceCheckUtils]: 0: Hoare triple {43#true} assume true; {43#true} is VALID [2020-07-10 20:24:15,718 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {43#true} {43#true} #66#return; {43#true} is VALID [2020-07-10 20:24:15,720 INFO L263 TraceCheckUtils]: 0: Hoare triple {43#true} call ULTIMATE.init(); {43#true} is VALID [2020-07-10 20:24:15,720 INFO L280 TraceCheckUtils]: 1: Hoare triple {43#true} assume true; {43#true} is VALID [2020-07-10 20:24:15,720 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {43#true} {43#true} #66#return; {43#true} is VALID [2020-07-10 20:24:15,721 INFO L263 TraceCheckUtils]: 3: Hoare triple {43#true} call #t~ret4 := main(); {43#true} is VALID [2020-07-10 20:24:15,721 INFO L280 TraceCheckUtils]: 4: Hoare triple {43#true} havoc ~idBitLength~0; {43#true} is VALID [2020-07-10 20:24:15,721 INFO L280 TraceCheckUtils]: 5: Hoare triple {43#true} havoc ~material_length~0; {43#true} is VALID [2020-07-10 20:24:15,722 INFO L280 TraceCheckUtils]: 6: Hoare triple {43#true} havoc ~nlen~0; {43#true} is VALID [2020-07-10 20:24:15,722 INFO L280 TraceCheckUtils]: 7: Hoare triple {43#true} havoc ~j~0; {43#true} is VALID [2020-07-10 20:24:15,722 INFO L280 TraceCheckUtils]: 8: Hoare triple {43#true} havoc ~k~0; {43#true} is VALID [2020-07-10 20:24:15,723 INFO L280 TraceCheckUtils]: 9: Hoare triple {43#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {43#true} is VALID [2020-07-10 20:24:15,723 INFO L280 TraceCheckUtils]: 10: Hoare triple {43#true} ~nlen~0 := #t~nondet0; {43#true} is VALID [2020-07-10 20:24:15,724 INFO L280 TraceCheckUtils]: 11: Hoare triple {43#true} havoc #t~nondet0; {43#true} is VALID [2020-07-10 20:24:15,724 INFO L280 TraceCheckUtils]: 12: Hoare triple {43#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {43#true} is VALID [2020-07-10 20:24:15,725 INFO L280 TraceCheckUtils]: 13: Hoare triple {43#true} ~idBitLength~0 := #t~nondet1; {43#true} is VALID [2020-07-10 20:24:15,725 INFO L280 TraceCheckUtils]: 14: Hoare triple {43#true} havoc #t~nondet1; {43#true} is VALID [2020-07-10 20:24:15,726 INFO L280 TraceCheckUtils]: 15: Hoare triple {43#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {43#true} is VALID [2020-07-10 20:24:15,726 INFO L280 TraceCheckUtils]: 16: Hoare triple {43#true} ~material_length~0 := #t~nondet2; {43#true} is VALID [2020-07-10 20:24:15,727 INFO L280 TraceCheckUtils]: 17: Hoare triple {43#true} havoc #t~nondet2; {43#true} is VALID [2020-07-10 20:24:15,727 INFO L280 TraceCheckUtils]: 18: Hoare triple {43#true} assume !!(~nlen~0 == (if ~idBitLength~0 < 0 && 0 != ~idBitLength~0 % 32 then 1 + ~idBitLength~0 / 32 else ~idBitLength~0 / 32)); {43#true} is VALID [2020-07-10 20:24:15,729 INFO L280 TraceCheckUtils]: 19: Hoare triple {43#true} ~j~0 := 0; {47#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:15,730 INFO L280 TraceCheckUtils]: 20: Hoare triple {47#(<= 0 main_~j~0)} assume !!(~j~0 < (if ~idBitLength~0 < 0 && 0 != ~idBitLength~0 % 8 then 1 + ~idBitLength~0 / 8 else ~idBitLength~0 / 8) && ~j~0 < ~material_length~0); {47#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:15,732 INFO L263 TraceCheckUtils]: 21: Hoare triple {47#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {48#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-10 20:24:15,734 INFO L280 TraceCheckUtils]: 22: Hoare triple {48#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {49#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:24:15,735 INFO L280 TraceCheckUtils]: 23: Hoare triple {49#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {44#false} is VALID [2020-07-10 20:24:15,735 INFO L280 TraceCheckUtils]: 24: Hoare triple {44#false} assume !false; {44#false} is VALID [2020-07-10 20:24:15,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 20:24:15,740 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:24:15,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [184805955] [2020-07-10 20:24:15,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:24:15,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 20:24:15,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145525590] [2020-07-10 20:24:15,752 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-10 20:24:15,756 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:24:15,760 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 20:24:15,809 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:15,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 20:24:15,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:24:15,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 20:24:15,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 20:24:15,823 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 5 states. [2020-07-10 20:24:16,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:16,261 INFO L93 Difference]: Finished difference Result 73 states and 98 transitions. [2020-07-10 20:24:16,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 20:24:16,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-10 20:24:16,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:24:16,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 20:24:16,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2020-07-10 20:24:16,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 20:24:16,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2020-07-10 20:24:16,285 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 98 transitions. [2020-07-10 20:24:16,429 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 98 edges. 98 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:16,444 INFO L225 Difference]: With dead ends: 73 [2020-07-10 20:24:16,444 INFO L226 Difference]: Without dead ends: 45 [2020-07-10 20:24:16,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-10 20:24:16,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-07-10 20:24:16,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2020-07-10 20:24:16,523 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:24:16,523 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand 42 states. [2020-07-10 20:24:16,524 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 42 states. [2020-07-10 20:24:16,524 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 42 states. [2020-07-10 20:24:16,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:16,533 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2020-07-10 20:24:16,533 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2020-07-10 20:24:16,534 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:24:16,534 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:24:16,535 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 45 states. [2020-07-10 20:24:16,535 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 45 states. [2020-07-10 20:24:16,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:16,541 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2020-07-10 20:24:16,541 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2020-07-10 20:24:16,542 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:24:16,542 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:24:16,543 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:24:16,543 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:24:16,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-10 20:24:16,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2020-07-10 20:24:16,549 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 25 [2020-07-10 20:24:16,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:24:16,550 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2020-07-10 20:24:16,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 20:24:16,550 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 42 states and 47 transitions. [2020-07-10 20:24:16,608 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:16,609 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2020-07-10 20:24:16,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-10 20:24:16,610 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:24:16,610 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 20:24:16,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 20:24:16,611 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:24:16,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:24:16,612 INFO L82 PathProgramCache]: Analyzing trace with hash 56397381, now seen corresponding path program 1 times [2020-07-10 20:24:16,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:24:16,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133507989] [2020-07-10 20:24:16,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:24:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:16,796 INFO L280 TraceCheckUtils]: 0: Hoare triple {374#true} assume true; {374#true} is VALID [2020-07-10 20:24:16,797 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {374#true} {374#true} #66#return; {374#true} is VALID [2020-07-10 20:24:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:16,833 INFO L280 TraceCheckUtils]: 0: Hoare triple {374#true} ~cond := #in~cond; {374#true} is VALID [2020-07-10 20:24:16,834 INFO L280 TraceCheckUtils]: 1: Hoare triple {374#true} assume !(0 == ~cond); {374#true} is VALID [2020-07-10 20:24:16,834 INFO L280 TraceCheckUtils]: 2: Hoare triple {374#true} assume true; {374#true} is VALID [2020-07-10 20:24:16,836 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {374#true} {378#(< main_~j~0 main_~material_length~0)} #70#return; {378#(< main_~j~0 main_~material_length~0)} is VALID [2020-07-10 20:24:16,836 INFO L263 TraceCheckUtils]: 0: Hoare triple {374#true} call ULTIMATE.init(); {374#true} is VALID [2020-07-10 20:24:16,837 INFO L280 TraceCheckUtils]: 1: Hoare triple {374#true} assume true; {374#true} is VALID [2020-07-10 20:24:16,837 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {374#true} {374#true} #66#return; {374#true} is VALID [2020-07-10 20:24:16,837 INFO L263 TraceCheckUtils]: 3: Hoare triple {374#true} call #t~ret4 := main(); {374#true} is VALID [2020-07-10 20:24:16,838 INFO L280 TraceCheckUtils]: 4: Hoare triple {374#true} havoc ~idBitLength~0; {374#true} is VALID [2020-07-10 20:24:16,838 INFO L280 TraceCheckUtils]: 5: Hoare triple {374#true} havoc ~material_length~0; {374#true} is VALID [2020-07-10 20:24:16,839 INFO L280 TraceCheckUtils]: 6: Hoare triple {374#true} havoc ~nlen~0; {374#true} is VALID [2020-07-10 20:24:16,839 INFO L280 TraceCheckUtils]: 7: Hoare triple {374#true} havoc ~j~0; {374#true} is VALID [2020-07-10 20:24:16,839 INFO L280 TraceCheckUtils]: 8: Hoare triple {374#true} havoc ~k~0; {374#true} is VALID [2020-07-10 20:24:16,840 INFO L280 TraceCheckUtils]: 9: Hoare triple {374#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {374#true} is VALID [2020-07-10 20:24:16,840 INFO L280 TraceCheckUtils]: 10: Hoare triple {374#true} ~nlen~0 := #t~nondet0; {374#true} is VALID [2020-07-10 20:24:16,841 INFO L280 TraceCheckUtils]: 11: Hoare triple {374#true} havoc #t~nondet0; {374#true} is VALID [2020-07-10 20:24:16,842 INFO L280 TraceCheckUtils]: 12: Hoare triple {374#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {374#true} is VALID [2020-07-10 20:24:16,842 INFO L280 TraceCheckUtils]: 13: Hoare triple {374#true} ~idBitLength~0 := #t~nondet1; {374#true} is VALID [2020-07-10 20:24:16,843 INFO L280 TraceCheckUtils]: 14: Hoare triple {374#true} havoc #t~nondet1; {374#true} is VALID [2020-07-10 20:24:16,845 INFO L280 TraceCheckUtils]: 15: Hoare triple {374#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {374#true} is VALID [2020-07-10 20:24:16,845 INFO L280 TraceCheckUtils]: 16: Hoare triple {374#true} ~material_length~0 := #t~nondet2; {374#true} is VALID [2020-07-10 20:24:16,849 INFO L280 TraceCheckUtils]: 17: Hoare triple {374#true} havoc #t~nondet2; {374#true} is VALID [2020-07-10 20:24:16,849 INFO L280 TraceCheckUtils]: 18: Hoare triple {374#true} assume !!(~nlen~0 == (if ~idBitLength~0 < 0 && 0 != ~idBitLength~0 % 32 then 1 + ~idBitLength~0 / 32 else ~idBitLength~0 / 32)); {374#true} is VALID [2020-07-10 20:24:16,850 INFO L280 TraceCheckUtils]: 19: Hoare triple {374#true} ~j~0 := 0; {374#true} is VALID [2020-07-10 20:24:16,852 INFO L280 TraceCheckUtils]: 20: Hoare triple {374#true} assume !!(~j~0 < (if ~idBitLength~0 < 0 && 0 != ~idBitLength~0 % 8 then 1 + ~idBitLength~0 / 8 else ~idBitLength~0 / 8) && ~j~0 < ~material_length~0); {378#(< main_~j~0 main_~material_length~0)} is VALID [2020-07-10 20:24:16,852 INFO L263 TraceCheckUtils]: 21: Hoare triple {378#(< main_~j~0 main_~material_length~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {374#true} is VALID [2020-07-10 20:24:16,853 INFO L280 TraceCheckUtils]: 22: Hoare triple {374#true} ~cond := #in~cond; {374#true} is VALID [2020-07-10 20:24:16,853 INFO L280 TraceCheckUtils]: 23: Hoare triple {374#true} assume !(0 == ~cond); {374#true} is VALID [2020-07-10 20:24:16,853 INFO L280 TraceCheckUtils]: 24: Hoare triple {374#true} assume true; {374#true} is VALID [2020-07-10 20:24:16,854 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {374#true} {378#(< main_~j~0 main_~material_length~0)} #70#return; {378#(< main_~j~0 main_~material_length~0)} is VALID [2020-07-10 20:24:16,856 INFO L263 TraceCheckUtils]: 26: Hoare triple {378#(< main_~j~0 main_~material_length~0)} call __VERIFIER_assert((if ~j~0 < ~material_length~0 then 1 else 0)); {383#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-10 20:24:16,857 INFO L280 TraceCheckUtils]: 27: Hoare triple {383#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {384#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:24:16,858 INFO L280 TraceCheckUtils]: 28: Hoare triple {384#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {375#false} is VALID [2020-07-10 20:24:16,858 INFO L280 TraceCheckUtils]: 29: Hoare triple {375#false} assume !false; {375#false} is VALID [2020-07-10 20:24:16,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 20:24:16,860 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:24:16,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [133507989] [2020-07-10 20:24:16,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:24:16,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 20:24:16,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287304034] [2020-07-10 20:24:16,863 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-10 20:24:16,863 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:24:16,863 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 20:24:16,905 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:16,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 20:24:16,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:24:16,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 20:24:16,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 20:24:16,907 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand 5 states. [2020-07-10 20:24:17,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:17,144 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2020-07-10 20:24:17,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 20:24:17,144 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-10 20:24:17,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:24:17,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 20:24:17,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 42 transitions. [2020-07-10 20:24:17,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 20:24:17,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 42 transitions. [2020-07-10 20:24:17,150 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 42 transitions. [2020-07-10 20:24:17,213 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:17,216 INFO L225 Difference]: With dead ends: 48 [2020-07-10 20:24:17,216 INFO L226 Difference]: Without dead ends: 46 [2020-07-10 20:24:17,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-10 20:24:17,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-07-10 20:24:17,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-07-10 20:24:17,276 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:24:17,276 INFO L82 GeneralOperation]: Start isEquivalent. First operand 46 states. Second operand 46 states. [2020-07-10 20:24:17,276 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 46 states. [2020-07-10 20:24:17,277 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 46 states. [2020-07-10 20:24:17,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:17,281 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-07-10 20:24:17,282 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-07-10 20:24:17,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:24:17,283 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:24:17,283 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 46 states. [2020-07-10 20:24:17,284 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 46 states. [2020-07-10 20:24:17,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:17,288 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-07-10 20:24:17,288 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-07-10 20:24:17,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:24:17,289 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:24:17,290 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:24:17,290 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:24:17,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-07-10 20:24:17,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2020-07-10 20:24:17,294 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 30 [2020-07-10 20:24:17,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:24:17,294 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2020-07-10 20:24:17,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 20:24:17,295 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 46 states and 50 transitions. [2020-07-10 20:24:17,373 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:17,373 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-07-10 20:24:17,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-10 20:24:17,375 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:24:17,375 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 20:24:17,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 20:24:17,376 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:24:17,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:24:17,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1292887515, now seen corresponding path program 1 times [2020-07-10 20:24:17,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:24:17,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197283345] [2020-07-10 20:24:17,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:24:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 20:24:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 20:24:17,460 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:24:17,461 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-10 20:24:17,461 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 20:24:17,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-10 20:24:17,478 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 20:24:17,478 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 20:24:17,478 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 20:24:17,478 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-10 20:24:17,478 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 20:24:17,479 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-10 20:24:17,479 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 20:24:17,479 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 20:24:17,479 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 20:24:17,479 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 20:24:17,479 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 20:24:17,479 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-10 20:24:17,479 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-10 20:24:17,480 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-10 20:24:17,480 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 20:24:17,480 WARN L170 areAnnotationChecker]: L4-1 has no Hoare annotation [2020-07-10 20:24:17,480 WARN L170 areAnnotationChecker]: L4-3 has no Hoare annotation [2020-07-10 20:24:17,480 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-10 20:24:17,480 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-10 20:24:17,481 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-10 20:24:17,481 WARN L170 areAnnotationChecker]: L7-2 has no Hoare annotation [2020-07-10 20:24:17,481 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-10 20:24:17,481 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 20:24:17,481 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 20:24:17,481 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 20:24:17,482 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 20:24:17,482 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2020-07-10 20:24:17,482 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-10 20:24:17,482 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-10 20:24:17,482 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 20:24:17,482 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 20:24:17,482 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 20:24:17,482 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 20:24:17,483 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-10 20:24:17,483 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-10 20:24:17,483 WARN L170 areAnnotationChecker]: L20-3 has no Hoare annotation [2020-07-10 20:24:17,483 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-10 20:24:17,483 WARN L170 areAnnotationChecker]: L20-4 has no Hoare annotation [2020-07-10 20:24:17,483 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-10 20:24:17,484 WARN L170 areAnnotationChecker]: L20-5 has no Hoare annotation [2020-07-10 20:24:17,484 WARN L170 areAnnotationChecker]: L20-5 has no Hoare annotation [2020-07-10 20:24:17,484 WARN L170 areAnnotationChecker]: L20-5 has no Hoare annotation [2020-07-10 20:24:17,484 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-10 20:24:17,484 WARN L170 areAnnotationChecker]: L20-6 has no Hoare annotation [2020-07-10 20:24:17,484 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-10 20:24:17,484 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-10 20:24:17,485 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-10 20:24:17,485 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 20:24:17,485 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-10 20:24:17,485 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 20:24:17,485 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-10 20:24:17,485 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2020-07-10 20:24:17,485 WARN L170 areAnnotationChecker]: L18-2 has no Hoare annotation [2020-07-10 20:24:17,485 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-10 20:24:17,486 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-10 20:24:17,486 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-10 20:24:17,486 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-10 20:24:17,486 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. [2020-07-10 20:24:17,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 08:24:17 BoogieIcfgContainer [2020-07-10 20:24:17,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 20:24:17,493 INFO L168 Benchmark]: Toolchain (without parser) took 3051.61 ms. Allocated memory was 138.9 MB in the beginning and 243.3 MB in the end (delta: 104.3 MB). Free memory was 103.2 MB in the beginning and 199.8 MB in the end (delta: -96.6 MB). Peak memory consumption was 7.7 MB. Max. memory is 7.1 GB. [2020-07-10 20:24:17,494 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 138.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-10 20:24:17,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.17 ms. Allocated memory is still 138.9 MB. Free memory was 103.0 MB in the beginning and 93.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-10 20:24:17,496 INFO L168 Benchmark]: Boogie Preprocessor took 37.88 ms. Allocated memory is still 138.9 MB. Free memory was 93.2 MB in the beginning and 91.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2020-07-10 20:24:17,497 INFO L168 Benchmark]: RCFGBuilder took 561.44 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 91.6 MB in the beginning and 161.3 MB in the end (delta: -69.7 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-10 20:24:17,498 INFO L168 Benchmark]: TraceAbstraction took 2191.24 ms. Allocated memory was 203.9 MB in the beginning and 243.3 MB in the end (delta: 39.3 MB). Free memory was 161.3 MB in the beginning and 199.8 MB in the end (delta: -38.5 MB). Peak memory consumption was 860.7 kB. Max. memory is 7.1 GB. [2020-07-10 20:24:17,502 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 0.32 ms. Allocated memory is still 138.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 255.17 ms. Allocated memory is still 138.9 MB. Free memory was 103.0 MB in the beginning and 93.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.88 ms. Allocated memory is still 138.9 MB. Free memory was 93.2 MB in the beginning and 91.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 561.44 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 91.6 MB in the beginning and 161.3 MB in the end (delta: -69.7 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2191.24 ms. Allocated memory was 203.9 MB in the beginning and 243.3 MB in the end (delta: 39.3 MB). Free memory was 161.3 MB in the beginning and 199.8 MB in the end (delta: -38.5 MB). Peak memory consumption was 860.7 kB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int idBitLength, material_length, nlen; [L15] int j, k; [L16] nlen = __VERIFIER_nondet_int() [L17] idBitLength = __VERIFIER_nondet_int() [L18] material_length = __VERIFIER_nondet_int() [L19] COND FALSE !(!( nlen == idBitLength / 32 )) [L20] j = 0 [L20] COND TRUE (j < idBitLength / 8) && (j < material_length) [L21] CALL __VERIFIER_assert( 0 <= j) [L7] COND FALSE !(!(cond)) [L21] RET __VERIFIER_assert( 0 <= j) [L22] CALL __VERIFIER_assert( j < material_length ) [L7] COND FALSE !(!(cond)) [L22] RET __VERIFIER_assert( j < material_length ) [L23] CALL __VERIFIER_assert( 0 <= j/4 ) [L7] COND FALSE !(!(cond)) [L23] RET __VERIFIER_assert( 0 <= j/4 ) [L24] CALL __VERIFIER_assert( j/4 < nlen) [L7] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 79 SDtfs, 15 SDslu, 206 SDs, 0 SdLazy, 52 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 3 StatesRemovedByMinimization, 1 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...