/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_trans.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:28:49,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:28:49,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:28:49,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:28:49,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:28:49,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:28:49,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:28:49,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:28:49,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:28:49,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:28:49,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:28:49,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:28:49,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:28:49,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:28:49,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:28:49,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:28:49,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:28:49,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:28:49,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:28:49,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:28:49,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:28:49,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:28:49,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:28:49,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:28:49,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-10 15:28:49,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-10 15:28:49,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-10 15:28:49,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-10 15:28:49,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-10 15:28:49,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-10 15:28:49,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-10 15:28:49,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-10 15:28:49,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-10 15:28:49,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-10 15:28:49,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-10 15:28:49,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-10 15:28:49,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-10 15:28:49,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-10 15:28:49,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:28:49,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:28:49,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:28:49,430 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-10 15:28:49,446 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:28:49,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:28:49,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:28:49,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:28:49,448 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:28:49,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:28:49,449 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:28:49,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:28:49,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:28:49,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:28:49,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:28:49,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:28:49,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:28:49,450 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:28:49,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:28:49,450 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:28:49,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:28:49,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:28:49,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:28:49,451 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:28:49,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:28:49,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:28:49,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:28:49,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:28:49,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:28:49,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:28:49,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:28:49,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:28:49,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:28:49,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:28:49,745 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:28:49,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:28:49,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:28:49,763 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:28:49,763 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:28:49,764 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_trans.i [2020-07-10 15:28:49,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d53b2a1b/adce4d92d4784b5a85a6fb9fb2c000e0/FLAG5fdac17ee [2020-07-10 15:28:50,333 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:28:50,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_trans.i [2020-07-10 15:28:50,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d53b2a1b/adce4d92d4784b5a85a6fb9fb2c000e0/FLAG5fdac17ee [2020-07-10 15:28:50,699 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d53b2a1b/adce4d92d4784b5a85a6fb9fb2c000e0 [2020-07-10 15:28:50,708 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:28:50,710 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:28:50,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:28:50,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:28:50,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:28:50,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:28:50" (1/1) ... [2020-07-10 15:28:50,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d89720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:50, skipping insertion in model container [2020-07-10 15:28:50,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:28:50" (1/1) ... [2020-07-10 15:28:50,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:28:50,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:28:50,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:28:50,926 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:28:50,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:28:50,962 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:28:50,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:50 WrapperNode [2020-07-10 15:28:50,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:28:50,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:28:50,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:28:50,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:28:50,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:50" (1/1) ... [2020-07-10 15:28:50,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:50" (1/1) ... [2020-07-10 15:28:50,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:50" (1/1) ... [2020-07-10 15:28:50,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:50" (1/1) ... [2020-07-10 15:28:50,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:50" (1/1) ... [2020-07-10 15:28:50,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:50" (1/1) ... [2020-07-10 15:28:50,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:50" (1/1) ... [2020-07-10 15:28:51,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:28:51,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:28:51,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:28:51,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:28:51,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:50" (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 15:28:51,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:28:51,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:28:51,177 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-10 15:28:51,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 15:28:51,177 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:28:51,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:28:51,177 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 15:28:51,178 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-10 15:28:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 15:28:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 15:28:51,179 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:28:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:28:51,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:28:51,489 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:28:51,490 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-10 15:28:51,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:28:51 BoogieIcfgContainer [2020-07-10 15:28:51,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:28:51,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:28:51,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:28:51,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:28:51,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:28:50" (1/3) ... [2020-07-10 15:28:51,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f20e920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:28:51, skipping insertion in model container [2020-07-10 15:28:51,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:50" (2/3) ... [2020-07-10 15:28:51,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f20e920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:28:51, skipping insertion in model container [2020-07-10 15:28:51,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:28:51" (3/3) ... [2020-07-10 15:28:51,505 INFO L109 eAbstractionObserver]: Analyzing ICFG id_trans.i [2020-07-10 15:28:51,518 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:28:51,525 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:28:51,541 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:28:51,565 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:28:51,566 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:28:51,566 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:28:51,566 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:28:51,566 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:28:51,567 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:28:51,567 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:28:51,567 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:28:51,589 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-07-10 15:28:51,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-10 15:28:51,595 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:28:51,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:28:51,597 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:28:51,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:28:51,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1541464652, now seen corresponding path program 1 times [2020-07-10 15:28:51,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:28:51,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3427056] [2020-07-10 15:28:51,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:28:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:28:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:28:51,890 INFO L280 TraceCheckUtils]: 0: Hoare triple {26#true} assume true; {26#true} is VALID [2020-07-10 15:28:51,890 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {26#true} {26#true} #48#return; {26#true} is VALID [2020-07-10 15:28:51,893 INFO L263 TraceCheckUtils]: 0: Hoare triple {26#true} call ULTIMATE.init(); {26#true} is VALID [2020-07-10 15:28:51,893 INFO L280 TraceCheckUtils]: 1: Hoare triple {26#true} assume true; {26#true} is VALID [2020-07-10 15:28:51,894 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {26#true} {26#true} #48#return; {26#true} is VALID [2020-07-10 15:28:51,894 INFO L263 TraceCheckUtils]: 3: Hoare triple {26#true} call #t~ret4 := main(); {26#true} is VALID [2020-07-10 15:28:51,895 INFO L280 TraceCheckUtils]: 4: Hoare triple {26#true} havoc ~idBitLength~0;havoc ~material_length~0;havoc ~nlen~0;havoc ~j~0;havoc ~k~0;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~nlen~0 := #t~nondet0;havoc #t~nondet0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~idBitLength~0 := #t~nondet1;havoc #t~nondet1;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;~material_length~0 := #t~nondet2;havoc #t~nondet2; {26#true} is VALID [2020-07-10 15:28:51,897 INFO L280 TraceCheckUtils]: 5: Hoare triple {26#true} assume !!(~nlen~0 == (if ~idBitLength~0 < 0 && 0 != ~idBitLength~0 % 32 then 1 + ~idBitLength~0 / 32 else ~idBitLength~0 / 32));~j~0 := 0; {30#(<= 0 main_~j~0)} is VALID [2020-07-10 15:28:51,898 INFO L280 TraceCheckUtils]: 6: Hoare triple {30#(<= 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); {30#(<= 0 main_~j~0)} is VALID [2020-07-10 15:28:51,900 INFO L263 TraceCheckUtils]: 7: Hoare triple {30#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {31#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-10 15:28:51,901 INFO L280 TraceCheckUtils]: 8: Hoare triple {31#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {32#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 15:28:51,902 INFO L280 TraceCheckUtils]: 9: Hoare triple {32#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {27#false} is VALID [2020-07-10 15:28:51,903 INFO L280 TraceCheckUtils]: 10: Hoare triple {27#false} assume !false; {27#false} is VALID [2020-07-10 15:28:51,904 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 15:28:51,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3427056] [2020-07-10 15:28:51,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:28:51,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 15:28:51,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092457127] [2020-07-10 15:28:51,914 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-10 15:28:51,918 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:28:51,922 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 15:28:51,946 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:28:51,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 15:28:51,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:28:51,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 15:28:51,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 15:28:51,960 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2020-07-10 15:28:52,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:52,302 INFO L93 Difference]: Finished difference Result 46 states and 61 transitions. [2020-07-10 15:28:52,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 15:28:52,302 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-10 15:28:52,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:28:52,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:28:52,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 61 transitions. [2020-07-10 15:28:52,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:28:52,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 61 transitions. [2020-07-10 15:28:52,324 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 61 transitions. [2020-07-10 15:28:52,429 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:28:52,442 INFO L225 Difference]: With dead ends: 46 [2020-07-10 15:28:52,443 INFO L226 Difference]: Without dead ends: 22 [2020-07-10 15:28:52,448 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 15:28:52,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-07-10 15:28:52,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-07-10 15:28:52,502 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:28:52,503 INFO L82 GeneralOperation]: Start isEquivalent. First operand 22 states. Second operand 22 states. [2020-07-10 15:28:52,503 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 22 states. [2020-07-10 15:28:52,504 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 22 states. [2020-07-10 15:28:52,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:52,510 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2020-07-10 15:28:52,510 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-07-10 15:28:52,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:28:52,511 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:28:52,511 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 22 states. [2020-07-10 15:28:52,512 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 22 states. [2020-07-10 15:28:52,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:52,516 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2020-07-10 15:28:52,516 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-07-10 15:28:52,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:28:52,532 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:28:52,532 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:28:52,532 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:28:52,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-07-10 15:28:52,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2020-07-10 15:28:52,538 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 11 [2020-07-10 15:28:52,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:28:52,538 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2020-07-10 15:28:52,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 15:28:52,538 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-07-10 15:28:52,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-10 15:28:52,539 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:28:52,540 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:28:52,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:28:52,540 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:28:52,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:28:52,542 INFO L82 PathProgramCache]: Analyzing trace with hash -621797359, now seen corresponding path program 1 times [2020-07-10 15:28:52,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:28:52,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023630534] [2020-07-10 15:28:52,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:28:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:28:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:28:52,642 INFO L280 TraceCheckUtils]: 0: Hoare triple {177#true} assume true; {177#true} is VALID [2020-07-10 15:28:52,643 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {177#true} {177#true} #48#return; {177#true} is VALID [2020-07-10 15:28:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:28:52,653 INFO L280 TraceCheckUtils]: 0: Hoare triple {177#true} ~cond := #in~cond; {177#true} is VALID [2020-07-10 15:28:52,654 INFO L280 TraceCheckUtils]: 1: Hoare triple {177#true} assume !(0 == ~cond); {177#true} is VALID [2020-07-10 15:28:52,654 INFO L280 TraceCheckUtils]: 2: Hoare triple {177#true} assume true; {177#true} is VALID [2020-07-10 15:28:52,655 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {177#true} {181#(<= (+ main_~j~0 1) main_~material_length~0)} #52#return; {181#(<= (+ main_~j~0 1) main_~material_length~0)} is VALID [2020-07-10 15:28:52,655 INFO L263 TraceCheckUtils]: 0: Hoare triple {177#true} call ULTIMATE.init(); {177#true} is VALID [2020-07-10 15:28:52,656 INFO L280 TraceCheckUtils]: 1: Hoare triple {177#true} assume true; {177#true} is VALID [2020-07-10 15:28:52,656 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {177#true} {177#true} #48#return; {177#true} is VALID [2020-07-10 15:28:52,656 INFO L263 TraceCheckUtils]: 3: Hoare triple {177#true} call #t~ret4 := main(); {177#true} is VALID [2020-07-10 15:28:52,657 INFO L280 TraceCheckUtils]: 4: Hoare triple {177#true} havoc ~idBitLength~0;havoc ~material_length~0;havoc ~nlen~0;havoc ~j~0;havoc ~k~0;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~nlen~0 := #t~nondet0;havoc #t~nondet0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~idBitLength~0 := #t~nondet1;havoc #t~nondet1;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;~material_length~0 := #t~nondet2;havoc #t~nondet2; {177#true} is VALID [2020-07-10 15:28:52,657 INFO L280 TraceCheckUtils]: 5: Hoare triple {177#true} assume !!(~nlen~0 == (if ~idBitLength~0 < 0 && 0 != ~idBitLength~0 % 32 then 1 + ~idBitLength~0 / 32 else ~idBitLength~0 / 32));~j~0 := 0; {177#true} is VALID [2020-07-10 15:28:52,658 INFO L280 TraceCheckUtils]: 6: Hoare triple {177#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); {181#(<= (+ main_~j~0 1) main_~material_length~0)} is VALID [2020-07-10 15:28:52,659 INFO L263 TraceCheckUtils]: 7: Hoare triple {181#(<= (+ main_~j~0 1) main_~material_length~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {177#true} is VALID [2020-07-10 15:28:52,659 INFO L280 TraceCheckUtils]: 8: Hoare triple {177#true} ~cond := #in~cond; {177#true} is VALID [2020-07-10 15:28:52,659 INFO L280 TraceCheckUtils]: 9: Hoare triple {177#true} assume !(0 == ~cond); {177#true} is VALID [2020-07-10 15:28:52,660 INFO L280 TraceCheckUtils]: 10: Hoare triple {177#true} assume true; {177#true} is VALID [2020-07-10 15:28:52,661 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {177#true} {181#(<= (+ main_~j~0 1) main_~material_length~0)} #52#return; {181#(<= (+ main_~j~0 1) main_~material_length~0)} is VALID [2020-07-10 15:28:52,662 INFO L263 TraceCheckUtils]: 12: Hoare triple {181#(<= (+ main_~j~0 1) main_~material_length~0)} call __VERIFIER_assert((if ~j~0 < ~material_length~0 then 1 else 0)); {186#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-10 15:28:52,663 INFO L280 TraceCheckUtils]: 13: Hoare triple {186#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {187#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 15:28:52,664 INFO L280 TraceCheckUtils]: 14: Hoare triple {187#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {178#false} is VALID [2020-07-10 15:28:52,664 INFO L280 TraceCheckUtils]: 15: Hoare triple {178#false} assume !false; {178#false} is VALID [2020-07-10 15:28:52,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:28:52,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023630534] [2020-07-10 15:28:52,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:28:52,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 15:28:52,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562147688] [2020-07-10 15:28:52,669 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-07-10 15:28:52,669 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:28:52,670 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 15:28:52,690 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:28:52,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 15:28:52,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:28:52,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 15:28:52,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 15:28:52,692 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 5 states. [2020-07-10 15:28:52,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:52,837 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-07-10 15:28:52,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 15:28:52,837 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-07-10 15:28:52,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:28:52,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:28:52,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 26 transitions. [2020-07-10 15:28:52,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:28:52,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 26 transitions. [2020-07-10 15:28:52,852 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 26 transitions. [2020-07-10 15:28:52,892 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:28:52,895 INFO L225 Difference]: With dead ends: 28 [2020-07-10 15:28:52,895 INFO L226 Difference]: Without dead ends: 26 [2020-07-10 15:28:52,897 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 15:28:52,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-10 15:28:52,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-07-10 15:28:52,918 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:28:52,918 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand 26 states. [2020-07-10 15:28:52,918 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-10 15:28:52,919 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-10 15:28:52,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:52,922 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-07-10 15:28:52,922 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-07-10 15:28:52,923 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:28:52,924 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:28:52,925 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-10 15:28:52,925 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-10 15:28:52,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:52,931 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-07-10 15:28:52,931 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-07-10 15:28:52,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:28:52,932 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:28:52,932 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:28:52,932 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:28:52,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-07-10 15:28:52,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-07-10 15:28:52,936 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 16 [2020-07-10 15:28:52,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:28:52,936 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-07-10 15:28:52,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 15:28:52,937 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-07-10 15:28:52,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-10 15:28:52,939 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:28:52,940 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:28:52,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 15:28:52,940 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:28:52,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:28:52,941 INFO L82 PathProgramCache]: Analyzing trace with hash -561745487, now seen corresponding path program 1 times [2020-07-10 15:28:52,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:28:52,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955064848] [2020-07-10 15:28:52,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:28:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:28:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:28:53,044 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 15:28:53,044 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 15:28:53,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-10 15:28:53,070 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:28:53,070 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:28:53,071 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:28:53,071 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-10 15:28:53,071 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 15:28:53,071 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-10 15:28:53,071 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:28:53,071 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:28:53,071 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:28:53,072 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 15:28:53,072 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 15:28:53,072 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-10 15:28:53,072 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-10 15:28:53,072 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-10 15:28:53,072 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-10 15:28:53,072 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:28:53,073 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2020-07-10 15:28:53,073 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:28:53,073 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-10 15:28:53,073 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-10 15:28:53,073 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-10 15:28:53,073 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-10 15:28:53,073 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-10 15:28:53,073 WARN L170 areAnnotationChecker]: L7-2 has no Hoare annotation [2020-07-10 15:28:53,074 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:28:53,074 WARN L170 areAnnotationChecker]: L20-3 has no Hoare annotation [2020-07-10 15:28:53,074 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-10 15:28:53,074 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-10 15:28:53,074 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:28:53,074 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:28:53,074 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:28:53,075 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:28:53,075 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-10 15:28:53,075 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-10 15:28:53,075 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 15:28:53,075 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 15:28:53,075 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 15:28:53,075 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 15:28:53,075 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-10 15:28:53,076 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 15:28:53,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:28:53 BoogieIcfgContainer [2020-07-10 15:28:53,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:28:53,083 INFO L168 Benchmark]: Toolchain (without parser) took 2371.65 ms. Allocated memory was 145.2 MB in the beginning and 235.4 MB in the end (delta: 90.2 MB). Free memory was 103.1 MB in the beginning and 150.9 MB in the end (delta: -47.8 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2020-07-10 15:28:53,084 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 15:28:53,085 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.01 ms. Allocated memory is still 145.2 MB. Free memory was 102.9 MB in the beginning and 93.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:28:53,086 INFO L168 Benchmark]: Boogie Preprocessor took 132.30 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 93.1 MB in the beginning and 182.5 MB in the end (delta: -89.3 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2020-07-10 15:28:53,087 INFO L168 Benchmark]: RCFGBuilder took 398.28 ms. Allocated memory is still 202.4 MB. Free memory was 182.5 MB in the beginning and 161.6 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:28:53,087 INFO L168 Benchmark]: TraceAbstraction took 1582.44 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 161.6 MB in the beginning and 150.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 43.7 MB. Max. memory is 7.1 GB. [2020-07-10 15:28:53,091 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 0.24 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 252.01 ms. Allocated memory is still 145.2 MB. Free memory was 102.9 MB in the beginning and 93.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.30 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 93.1 MB in the beginning and 182.5 MB in the end (delta: -89.3 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 398.28 ms. Allocated memory is still 202.4 MB. Free memory was 182.5 MB in the beginning and 161.6 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1582.44 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 161.6 MB in the beginning and 150.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 43.7 MB. 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 VAL [idBitLength=9, j=0, material_length=2, nlen=0] [L20] COND TRUE (j < idBitLength / 8) && (j < material_length) VAL [idBitLength=9, j=0, material_length=2, nlen=0] [L21] CALL __VERIFIER_assert( 0 <= j) VAL [\old(cond)=1] [L7] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L21] RET __VERIFIER_assert( 0 <= j) VAL [idBitLength=9, j=0, material_length=2, nlen=0] [L22] CALL __VERIFIER_assert( j < material_length ) VAL [\old(cond)=1] [L7] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L22] RET __VERIFIER_assert( j < material_length ) VAL [idBitLength=9, j=0, material_length=2, nlen=0] [L23] CALL __VERIFIER_assert( 0 <= j/4 ) VAL [\old(cond)=1] [L7] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L23] RET __VERIFIER_assert( 0 <= j/4 ) VAL [idBitLength=9, j=0, material_length=2, nlen=0] [L24] CALL __VERIFIER_assert( j/4 < nlen) VAL [\old(cond)=0] [L7] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 13 SDslu, 98 SDs, 0 SdLazy, 44 SolverSat, 4 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=26occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 635 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...