/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_trans.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 23:39:54,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 23:39:54,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 23:39:54,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 23:39:54,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 23:39:54,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 23:39:54,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 23:39:54,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 23:39:54,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 23:39:54,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 23:39:54,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 23:39:54,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 23:39:54,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 23:39:54,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 23:39:54,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 23:39:54,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 23:39:54,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 23:39:54,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 23:39:54,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 23:39:54,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 23:39:54,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 23:39:54,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 23:39:54,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 23:39:54,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 23:39:54,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 23:39:54,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 23:39:54,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 23:39:54,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 23:39:54,963 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 23:39:54,992 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 23:39:54,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 23:39:54,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 23:39:54,997 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 23:39:54,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 23:39:54,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 23:39:54,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 23:39:54,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 23:39:54,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 23:39:54,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 23:39:55,000 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 23:39:55,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 23:39:55,001 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 23:39:55,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 23:39:55,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 23:39:55,001 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 23:39:55,002 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 23:39:55,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 23:39:55,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 23:39:55,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 23:39:55,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 23:39:55,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 23:39:55,003 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-08 23:39:55,320 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 23:39:55,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 23:39:55,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 23:39:55,349 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 23:39:55,350 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 23:39:55,351 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_trans.i [2020-07-08 23:39:55,446 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a081ce30/992e814abfad4160a90ae323725a2a64/FLAG9d09b4767 [2020-07-08 23:39:55,981 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 23:39:55,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_trans.i [2020-07-08 23:39:55,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a081ce30/992e814abfad4160a90ae323725a2a64/FLAG9d09b4767 [2020-07-08 23:39:56,325 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a081ce30/992e814abfad4160a90ae323725a2a64 [2020-07-08 23:39:56,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 23:39:56,340 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 23:39:56,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 23:39:56,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 23:39:56,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 23:39:56,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 11:39:56" (1/1) ... [2020-07-08 23:39:56,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ab1d360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:39:56, skipping insertion in model container [2020-07-08 23:39:56,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 11:39:56" (1/1) ... [2020-07-08 23:39:56,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 23:39:56,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 23:39:56,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 23:39:56,570 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 23:39:56,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 23:39:56,611 INFO L208 MainTranslator]: Completed translation [2020-07-08 23:39:56,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:39:56 WrapperNode [2020-07-08 23:39:56,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 23:39:56,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 23:39:56,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 23:39:56,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 23:39:56,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:39:56" (1/1) ... [2020-07-08 23:39:56,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:39:56" (1/1) ... [2020-07-08 23:39:56,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:39:56" (1/1) ... [2020-07-08 23:39:56,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:39:56" (1/1) ... [2020-07-08 23:39:56,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:39:56" (1/1) ... [2020-07-08 23:39:56,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:39:56" (1/1) ... [2020-07-08 23:39:56,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:39:56" (1/1) ... [2020-07-08 23:39:56,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 23:39:56,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 23:39:56,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 23:39:56,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 23:39:56,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:39:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 23:39:56,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 23:39:56,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 23:39:56,824 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-08 23:39:56,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-08 23:39:56,824 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 23:39:56,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 23:39:56,825 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 23:39:56,825 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-08 23:39:56,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-08 23:39:56,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 23:39:56,825 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 23:39:56,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 23:39:56,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 23:39:57,215 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 23:39:57,216 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-08 23:39:57,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 11:39:57 BoogieIcfgContainer [2020-07-08 23:39:57,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 23:39:57,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 23:39:57,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 23:39:57,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 23:39:57,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 11:39:56" (1/3) ... [2020-07-08 23:39:57,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23032ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 11:39:57, skipping insertion in model container [2020-07-08 23:39:57,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:39:56" (2/3) ... [2020-07-08 23:39:57,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23032ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 11:39:57, skipping insertion in model container [2020-07-08 23:39:57,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 11:39:57" (3/3) ... [2020-07-08 23:39:57,244 INFO L109 eAbstractionObserver]: Analyzing ICFG id_trans.i [2020-07-08 23:39:57,260 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 23:39:57,271 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 23:39:57,306 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 23:39:57,330 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 23:39:57,331 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 23:39:57,331 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-08 23:39:57,331 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 23:39:57,331 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 23:39:57,332 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 23:39:57,332 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 23:39:57,332 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 23:39:57,350 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-08 23:39:57,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-08 23:39:57,363 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:39:57,364 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] [2020-07-08 23:39:57,365 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:39:57,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:39:57,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1049898450, now seen corresponding path program 1 times [2020-07-08 23:39:57,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:39:57,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670349645] [2020-07-08 23:39:57,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:39:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:57,731 INFO L280 TraceCheckUtils]: 0: Hoare triple {43#true} assume true; {43#true} is VALID [2020-07-08 23:39:57,732 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {43#true} {43#true} #66#return; {43#true} is VALID [2020-07-08 23:39:57,735 INFO L263 TraceCheckUtils]: 0: Hoare triple {43#true} call ULTIMATE.init(); {43#true} is VALID [2020-07-08 23:39:57,736 INFO L280 TraceCheckUtils]: 1: Hoare triple {43#true} assume true; {43#true} is VALID [2020-07-08 23:39:57,737 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {43#true} {43#true} #66#return; {43#true} is VALID [2020-07-08 23:39:57,738 INFO L263 TraceCheckUtils]: 3: Hoare triple {43#true} call #t~ret4 := main(); {43#true} is VALID [2020-07-08 23:39:57,740 INFO L280 TraceCheckUtils]: 4: Hoare triple {43#true} havoc ~idBitLength~0; {43#true} is VALID [2020-07-08 23:39:57,741 INFO L280 TraceCheckUtils]: 5: Hoare triple {43#true} havoc ~material_length~0; {43#true} is VALID [2020-07-08 23:39:57,741 INFO L280 TraceCheckUtils]: 6: Hoare triple {43#true} havoc ~nlen~0; {43#true} is VALID [2020-07-08 23:39:57,742 INFO L280 TraceCheckUtils]: 7: Hoare triple {43#true} havoc ~j~0; {43#true} is VALID [2020-07-08 23:39:57,742 INFO L280 TraceCheckUtils]: 8: Hoare triple {43#true} havoc ~k~0; {43#true} is VALID [2020-07-08 23:39:57,743 INFO L280 TraceCheckUtils]: 9: Hoare triple {43#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {43#true} is VALID [2020-07-08 23:39:57,743 INFO L280 TraceCheckUtils]: 10: Hoare triple {43#true} ~nlen~0 := #t~nondet0; {43#true} is VALID [2020-07-08 23:39:57,744 INFO L280 TraceCheckUtils]: 11: Hoare triple {43#true} havoc #t~nondet0; {43#true} is VALID [2020-07-08 23:39:57,744 INFO L280 TraceCheckUtils]: 12: Hoare triple {43#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {43#true} is VALID [2020-07-08 23:39:57,744 INFO L280 TraceCheckUtils]: 13: Hoare triple {43#true} ~idBitLength~0 := #t~nondet1; {43#true} is VALID [2020-07-08 23:39:57,745 INFO L280 TraceCheckUtils]: 14: Hoare triple {43#true} havoc #t~nondet1; {43#true} is VALID [2020-07-08 23:39:57,745 INFO L280 TraceCheckUtils]: 15: Hoare triple {43#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {43#true} is VALID [2020-07-08 23:39:57,746 INFO L280 TraceCheckUtils]: 16: Hoare triple {43#true} ~material_length~0 := #t~nondet2; {43#true} is VALID [2020-07-08 23:39:57,746 INFO L280 TraceCheckUtils]: 17: Hoare triple {43#true} havoc #t~nondet2; {43#true} is VALID [2020-07-08 23:39:57,747 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 [2020-07-08 23:39:57,752 INFO L280 TraceCheckUtils]: 19: Hoare triple {43#true} ~j~0 := 0; {47#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:57,754 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 [2020-07-08 23:39:57,756 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 [2020-07-08 23:39:57,758 INFO L280 TraceCheckUtils]: 22: Hoare triple {48#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {49#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:39:57,760 INFO L280 TraceCheckUtils]: 23: Hoare triple {49#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {44#false} is VALID [2020-07-08 23:39:57,761 INFO L280 TraceCheckUtils]: 24: Hoare triple {44#false} assume !false; {44#false} is VALID [2020-07-08 23:39:57,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 23:39:57,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670349645] [2020-07-08 23:39:57,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:39:57,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 23:39:57,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98999658] [2020-07-08 23:39:57,786 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-08 23:39:57,789 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:39:57,794 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 23:39:57,858 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:57,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 23:39:57,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:39:57,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 23:39:57,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 23:39:57,876 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 5 states. [2020-07-08 23:39:58,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:58,433 INFO L93 Difference]: Finished difference Result 73 states and 98 transitions. [2020-07-08 23:39:58,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 23:39:58,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-08 23:39:58,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:39:58,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:39:58,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2020-07-08 23:39:58,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:39:58,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2020-07-08 23:39:58,459 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 98 transitions. [2020-07-08 23:39:58,628 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 98 edges. 98 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:58,645 INFO L225 Difference]: With dead ends: 73 [2020-07-08 23:39:58,645 INFO L226 Difference]: Without dead ends: 45 [2020-07-08 23:39:58,651 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 [2020-07-08 23:39:58,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-07-08 23:39:58,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2020-07-08 23:39:58,739 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:39:58,740 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand 42 states. [2020-07-08 23:39:58,741 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 42 states. [2020-07-08 23:39:58,742 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 42 states. [2020-07-08 23:39:58,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:58,753 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2020-07-08 23:39:58,753 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2020-07-08 23:39:58,754 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:39:58,755 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:39:58,755 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 45 states. [2020-07-08 23:39:58,755 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 45 states. [2020-07-08 23:39:58,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:58,763 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2020-07-08 23:39:58,763 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2020-07-08 23:39:58,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:39:58,765 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:39:58,766 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:39:58,766 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:39:58,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-08 23:39:58,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2020-07-08 23:39:58,774 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 25 [2020-07-08 23:39:58,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:39:58,775 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2020-07-08 23:39:58,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 23:39:58,775 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 42 states and 47 transitions. [2020-07-08 23:39:58,860 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:58,861 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2020-07-08 23:39:58,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-08 23:39:58,862 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:39:58,862 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] [2020-07-08 23:39:58,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 23:39:58,863 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:39:58,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:39:58,864 INFO L82 PathProgramCache]: Analyzing trace with hash 56397381, now seen corresponding path program 1 times [2020-07-08 23:39:58,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:39:58,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486420866] [2020-07-08 23:39:58,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:39:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:58,979 INFO L280 TraceCheckUtils]: 0: Hoare triple {374#true} assume true; {374#true} is VALID [2020-07-08 23:39:58,980 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {374#true} {374#true} #66#return; {374#true} is VALID [2020-07-08 23:39:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:59,006 INFO L280 TraceCheckUtils]: 0: Hoare triple {374#true} ~cond := #in~cond; {374#true} is VALID [2020-07-08 23:39:59,006 INFO L280 TraceCheckUtils]: 1: Hoare triple {374#true} assume !(0 == ~cond); {374#true} is VALID [2020-07-08 23:39:59,007 INFO L280 TraceCheckUtils]: 2: Hoare triple {374#true} assume true; {374#true} is VALID [2020-07-08 23:39:59,009 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 [2020-07-08 23:39:59,010 INFO L263 TraceCheckUtils]: 0: Hoare triple {374#true} call ULTIMATE.init(); {374#true} is VALID [2020-07-08 23:39:59,011 INFO L280 TraceCheckUtils]: 1: Hoare triple {374#true} assume true; {374#true} is VALID [2020-07-08 23:39:59,011 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {374#true} {374#true} #66#return; {374#true} is VALID [2020-07-08 23:39:59,012 INFO L263 TraceCheckUtils]: 3: Hoare triple {374#true} call #t~ret4 := main(); {374#true} is VALID [2020-07-08 23:39:59,012 INFO L280 TraceCheckUtils]: 4: Hoare triple {374#true} havoc ~idBitLength~0; {374#true} is VALID [2020-07-08 23:39:59,013 INFO L280 TraceCheckUtils]: 5: Hoare triple {374#true} havoc ~material_length~0; {374#true} is VALID [2020-07-08 23:39:59,013 INFO L280 TraceCheckUtils]: 6: Hoare triple {374#true} havoc ~nlen~0; {374#true} is VALID [2020-07-08 23:39:59,013 INFO L280 TraceCheckUtils]: 7: Hoare triple {374#true} havoc ~j~0; {374#true} is VALID [2020-07-08 23:39:59,014 INFO L280 TraceCheckUtils]: 8: Hoare triple {374#true} havoc ~k~0; {374#true} is VALID [2020-07-08 23:39:59,015 INFO L280 TraceCheckUtils]: 9: Hoare triple {374#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {374#true} is VALID [2020-07-08 23:39:59,015 INFO L280 TraceCheckUtils]: 10: Hoare triple {374#true} ~nlen~0 := #t~nondet0; {374#true} is VALID [2020-07-08 23:39:59,016 INFO L280 TraceCheckUtils]: 11: Hoare triple {374#true} havoc #t~nondet0; {374#true} is VALID [2020-07-08 23:39:59,016 INFO L280 TraceCheckUtils]: 12: Hoare triple {374#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {374#true} is VALID [2020-07-08 23:39:59,018 INFO L280 TraceCheckUtils]: 13: Hoare triple {374#true} ~idBitLength~0 := #t~nondet1; {374#true} is VALID [2020-07-08 23:39:59,019 INFO L280 TraceCheckUtils]: 14: Hoare triple {374#true} havoc #t~nondet1; {374#true} is VALID [2020-07-08 23:39:59,020 INFO L280 TraceCheckUtils]: 15: Hoare triple {374#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {374#true} is VALID [2020-07-08 23:39:59,020 INFO L280 TraceCheckUtils]: 16: Hoare triple {374#true} ~material_length~0 := #t~nondet2; {374#true} is VALID [2020-07-08 23:39:59,024 INFO L280 TraceCheckUtils]: 17: Hoare triple {374#true} havoc #t~nondet2; {374#true} is VALID [2020-07-08 23:39:59,025 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 [2020-07-08 23:39:59,025 INFO L280 TraceCheckUtils]: 19: Hoare triple {374#true} ~j~0 := 0; {374#true} is VALID [2020-07-08 23:39:59,026 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 [2020-07-08 23:39:59,027 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 [2020-07-08 23:39:59,027 INFO L280 TraceCheckUtils]: 22: Hoare triple {374#true} ~cond := #in~cond; {374#true} is VALID [2020-07-08 23:39:59,028 INFO L280 TraceCheckUtils]: 23: Hoare triple {374#true} assume !(0 == ~cond); {374#true} is VALID [2020-07-08 23:39:59,028 INFO L280 TraceCheckUtils]: 24: Hoare triple {374#true} assume true; {374#true} is VALID [2020-07-08 23:39:59,031 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 [2020-07-08 23:39:59,033 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 [2020-07-08 23:39:59,034 INFO L280 TraceCheckUtils]: 27: Hoare triple {383#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {384#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:39:59,035 INFO L280 TraceCheckUtils]: 28: Hoare triple {384#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {375#false} is VALID [2020-07-08 23:39:59,036 INFO L280 TraceCheckUtils]: 29: Hoare triple {375#false} assume !false; {375#false} is VALID [2020-07-08 23:39:59,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 23:39:59,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486420866] [2020-07-08 23:39:59,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:39:59,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 23:39:59,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989562516] [2020-07-08 23:39:59,049 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-08 23:39:59,050 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:39:59,050 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 23:39:59,099 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:59,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 23:39:59,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:39:59,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 23:39:59,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 23:39:59,102 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand 5 states. [2020-07-08 23:39:59,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:59,370 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2020-07-08 23:39:59,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 23:39:59,371 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-08 23:39:59,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:39:59,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:39:59,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 42 transitions. [2020-07-08 23:39:59,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:39:59,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 42 transitions. [2020-07-08 23:39:59,379 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 42 transitions. [2020-07-08 23:39:59,449 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:59,452 INFO L225 Difference]: With dead ends: 48 [2020-07-08 23:39:59,452 INFO L226 Difference]: Without dead ends: 46 [2020-07-08 23:39:59,454 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 [2020-07-08 23:39:59,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-07-08 23:39:59,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-07-08 23:39:59,512 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:39:59,513 INFO L82 GeneralOperation]: Start isEquivalent. First operand 46 states. Second operand 46 states. [2020-07-08 23:39:59,513 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 46 states. [2020-07-08 23:39:59,513 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 46 states. [2020-07-08 23:39:59,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:59,519 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-07-08 23:39:59,520 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-07-08 23:39:59,521 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:39:59,522 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:39:59,522 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 46 states. [2020-07-08 23:39:59,522 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 46 states. [2020-07-08 23:39:59,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:59,528 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-07-08 23:39:59,528 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-07-08 23:39:59,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:39:59,529 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:39:59,530 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:39:59,530 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:39:59,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-07-08 23:39:59,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2020-07-08 23:39:59,535 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 30 [2020-07-08 23:39:59,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:39:59,535 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2020-07-08 23:39:59,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 23:39:59,536 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 46 states and 50 transitions. [2020-07-08 23:39:59,645 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:59,646 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-07-08 23:39:59,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-08 23:39:59,648 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:39:59,648 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] [2020-07-08 23:39:59,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 23:39:59,649 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:39:59,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:39:59,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1292887515, now seen corresponding path program 1 times [2020-07-08 23:39:59,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:39:59,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1937576900] [2020-07-08 23:39:59,650 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:39:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 23:39:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 23:39:59,743 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-08 23:39:59,744 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-08 23:39:59,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 23:39:59,773 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 23:39:59,774 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 23:39:59,774 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 23:39:59,774 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-08 23:39:59,774 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-08 23:39:59,774 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-08 23:39:59,774 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 23:39:59,775 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 23:39:59,775 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 23:39:59,775 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-08 23:39:59,775 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-08 23:39:59,775 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-08 23:39:59,775 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-08 23:39:59,776 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-08 23:39:59,776 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 23:39:59,776 WARN L170 areAnnotationChecker]: L4-1 has no Hoare annotation [2020-07-08 23:39:59,776 WARN L170 areAnnotationChecker]: L4-3 has no Hoare annotation [2020-07-08 23:39:59,776 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-08 23:39:59,776 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-08 23:39:59,777 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-08 23:39:59,777 WARN L170 areAnnotationChecker]: L7-2 has no Hoare annotation [2020-07-08 23:39:59,777 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-08 23:39:59,777 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-08 23:39:59,777 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-08 23:39:59,777 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-08 23:39:59,778 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-08 23:39:59,778 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2020-07-08 23:39:59,778 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-08 23:39:59,778 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-08 23:39:59,778 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-08 23:39:59,778 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-08 23:39:59,778 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-08 23:39:59,779 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-08 23:39:59,779 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-08 23:39:59,779 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-08 23:39:59,779 WARN L170 areAnnotationChecker]: L20-3 has no Hoare annotation [2020-07-08 23:39:59,779 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-08 23:39:59,779 WARN L170 areAnnotationChecker]: L20-4 has no Hoare annotation [2020-07-08 23:39:59,780 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-08 23:39:59,780 WARN L170 areAnnotationChecker]: L20-5 has no Hoare annotation [2020-07-08 23:39:59,780 WARN L170 areAnnotationChecker]: L20-5 has no Hoare annotation [2020-07-08 23:39:59,780 WARN L170 areAnnotationChecker]: L20-5 has no Hoare annotation [2020-07-08 23:39:59,780 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-08 23:39:59,780 WARN L170 areAnnotationChecker]: L20-6 has no Hoare annotation [2020-07-08 23:39:59,780 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-08 23:39:59,781 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-08 23:39:59,781 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-08 23:39:59,781 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 23:39:59,781 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-08 23:39:59,781 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 23:39:59,781 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-08 23:39:59,782 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2020-07-08 23:39:59,782 WARN L170 areAnnotationChecker]: L18-2 has no Hoare annotation [2020-07-08 23:39:59,782 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-08 23:39:59,782 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-08 23:39:59,782 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-08 23:39:59,782 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-08 23:39:59,782 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 23:39:59,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 11:39:59 BoogieIcfgContainer [2020-07-08 23:39:59,787 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 23:39:59,791 INFO L168 Benchmark]: Toolchain (without parser) took 3450.13 ms. Allocated memory was 138.9 MB in the beginning and 244.8 MB in the end (delta: 105.9 MB). Free memory was 104.1 MB in the beginning and 206.3 MB in the end (delta: -102.2 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2020-07-08 23:39:59,792 INFO L168 Benchmark]: CDTParser took 1.05 ms. Allocated memory is still 138.9 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-08 23:39:59,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.33 ms. Allocated memory is still 138.9 MB. Free memory was 103.9 MB in the beginning and 94.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-08 23:39:59,794 INFO L168 Benchmark]: Boogie Preprocessor took 137.15 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 94.1 MB in the beginning and 182.2 MB in the end (delta: -88.1 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2020-07-08 23:39:59,795 INFO L168 Benchmark]: RCFGBuilder took 472.41 ms. Allocated memory is still 202.9 MB. Free memory was 182.2 MB in the beginning and 159.9 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-07-08 23:39:59,796 INFO L168 Benchmark]: TraceAbstraction took 2553.81 ms. Allocated memory was 202.9 MB in the beginning and 244.8 MB in the end (delta: 41.9 MB). Free memory was 159.3 MB in the beginning and 206.3 MB in the end (delta: -47.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-08 23:39:59,800 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 1.05 ms. Allocated memory is still 138.9 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 270.33 ms. Allocated memory is still 138.9 MB. Free memory was 103.9 MB in the beginning and 94.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.15 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 94.1 MB in the beginning and 182.2 MB in the end (delta: -88.1 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 472.41 ms. Allocated memory is still 202.9 MB. Free memory was 182.2 MB in the beginning and 159.9 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2553.81 ms. Allocated memory was 202.9 MB in the beginning and 244.8 MB in the end (delta: 41.9 MB). Free memory was 159.3 MB in the beginning and 206.3 MB in the end (delta: -47.1 MB). There was no memory consumed. 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() VAL [__VERIFIER_nondet_int()=0, nlen=0] [L17] idBitLength = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=9, idBitLength=9, nlen=0] [L18] material_length = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, idBitLength=9, material_length=1, nlen=0] [L19] COND FALSE !(!( nlen == idBitLength / 32 )) VAL [idBitLength=9, material_length=1, nlen=0] [L20] j = 0 VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L20] COND TRUE (j < idBitLength / 8) && (j < material_length) VAL [idBitLength=9, j=0, material_length=1, 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=1, 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=1, 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=1, 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, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 1.1s, 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, 0.1s 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1947 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...