/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/loops/trex03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 06:35:37,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 06:35:37,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 06:35:37,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 06:35:37,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 06:35:37,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 06:35:37,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 06:35:37,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 06:35:37,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 06:35:37,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 06:35:37,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 06:35:37,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 06:35:37,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 06:35:37,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 06:35:37,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 06:35:37,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 06:35:37,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 06:35:37,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 06:35:37,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 06:35:37,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 06:35:37,696 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 06:35:37,709 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 06:35:37,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 06:35:37,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 06:35:37,712 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 06:35:37,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 06:35:37,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 06:35:37,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 06:35:37,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 06:35:37,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 06:35:37,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 06:35:37,713 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 06:35:37,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 06:35:37,714 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 06:35:37,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 06:35:37,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 06:35:37,714 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 06:35:37,715 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 06:35:37,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 06:35:37,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 06:35:37,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 06:35:37,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 06:35:37,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 06:35:37,716 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 06:35:38,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 06:35:38,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 06:35:38,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 06:35:38,185 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 06:35:38,186 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 06:35:38,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex03-2.c [2020-11-07 06:35:38,283 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa2c266e4/652b3db0b8ef464b9ae569e7eab86fe0/FLAGe31fcc843 [2020-11-07 06:35:38,986 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 06:35:38,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex03-2.c [2020-11-07 06:35:38,996 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa2c266e4/652b3db0b8ef464b9ae569e7eab86fe0/FLAGe31fcc843 [2020-11-07 06:35:39,349 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa2c266e4/652b3db0b8ef464b9ae569e7eab86fe0 [2020-11-07 06:35:39,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 06:35:39,359 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 06:35:39,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 06:35:39,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 06:35:39,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 06:35:39,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:35:39" (1/1) ... [2020-11-07 06:35:39,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@236866f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:39, skipping insertion in model container [2020-11-07 06:35:39,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:35:39" (1/1) ... [2020-11-07 06:35:39,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 06:35:39,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 06:35:39,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:35:39,585 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 06:35:39,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:35:39,637 INFO L208 MainTranslator]: Completed translation [2020-11-07 06:35:39,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:39 WrapperNode [2020-11-07 06:35:39,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 06:35:39,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 06:35:39,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 06:35:39,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 06:35:39,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:39" (1/1) ... [2020-11-07 06:35:39,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:39" (1/1) ... [2020-11-07 06:35:39,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:39" (1/1) ... [2020-11-07 06:35:39,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:39" (1/1) ... [2020-11-07 06:35:39,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:39" (1/1) ... [2020-11-07 06:35:39,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:39" (1/1) ... [2020-11-07 06:35:39,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:39" (1/1) ... [2020-11-07 06:35:39,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 06:35:39,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 06:35:39,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 06:35:39,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 06:35:39,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:39" (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 [2020-11-07 06:35:39,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 06:35:39,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 06:35:39,829 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 06:35:39,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-07 06:35:39,830 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 06:35:39,831 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 06:35:39,831 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 06:35:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 06:35:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 06:35:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-07 06:35:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-11-07 06:35:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-11-07 06:35:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 06:35:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 06:35:39,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 06:35:39,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 06:35:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 06:35:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 06:35:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 06:35:40,439 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 06:35:40,440 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 06:35:40,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:35:40 BoogieIcfgContainer [2020-11-07 06:35:40,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 06:35:40,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 06:35:40,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 06:35:40,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 06:35:40,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:35:39" (1/3) ... [2020-11-07 06:35:40,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b91ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:35:40, skipping insertion in model container [2020-11-07 06:35:40,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:39" (2/3) ... [2020-11-07 06:35:40,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b91ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:35:40, skipping insertion in model container [2020-11-07 06:35:40,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:35:40" (3/3) ... [2020-11-07 06:35:40,453 INFO L111 eAbstractionObserver]: Analyzing ICFG trex03-2.c [2020-11-07 06:35:40,471 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 06:35:40,475 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 06:35:40,491 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 06:35:40,522 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 06:35:40,522 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 06:35:40,522 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 06:35:40,522 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 06:35:40,523 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 06:35:40,523 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 06:35:40,523 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 06:35:40,523 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 06:35:40,543 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2020-11-07 06:35:40,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-07 06:35:40,556 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:35:40,558 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, 1, 1, 1, 1, 1, 1] [2020-11-07 06:35:40,558 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:35:40,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:35:40,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1306844323, now seen corresponding path program 1 times [2020-11-07 06:35:40,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:35:40,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800117185] [2020-11-07 06:35:40,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:35:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:35:41,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:35:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:35:41,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:35:41,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800117185] [2020-11-07 06:35:41,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:35:41,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 06:35:41,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371791413] [2020-11-07 06:35:41,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 06:35:41,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:35:41,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 06:35:41,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 06:35:41,068 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 6 states. [2020-11-07 06:35:41,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:35:41,610 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2020-11-07 06:35:41,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 06:35:41,613 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-11-07 06:35:41,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:35:41,620 INFO L225 Difference]: With dead ends: 61 [2020-11-07 06:35:41,621 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 06:35:41,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-07 06:35:41,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 06:35:41,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 06:35:41,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 06:35:41,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 06:35:41,656 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2020-11-07 06:35:41,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:35:41,671 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 06:35:41,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 06:35:41,672 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 06:35:41,672 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 06:35:41,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 06:35:41,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 06:35:42,279 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-11-07 06:35:42,279 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-07 06:35:42,279 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-11-07 06:35:42,280 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-11-07 06:35:42,280 INFO L269 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-11-07 06:35:42,280 INFO L269 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-11-07 06:35:42,281 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 06:35:42,281 INFO L269 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-11-07 06:35:42,281 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 06:35:42,281 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2020-11-07 06:35:42,282 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-11-07 06:35:42,282 INFO L269 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-11-07 06:35:42,282 INFO L269 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-11-07 06:35:42,282 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 06:35:42,282 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 06:35:42,282 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 06:35:42,283 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 06:35:42,283 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 06:35:42,283 INFO L262 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (or (= (* (div main_~x3~0 4294967296) 4294967296) main_~x3~0) (= main_~x2~0 (* (div main_~x2~0 4294967296) 4294967296)) (= (* (div main_~x1~0 4294967296) 4294967296) main_~x1~0)) [2020-11-07 06:35:42,283 INFO L269 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2020-11-07 06:35:42,283 INFO L262 CegarLoopResult]: At program point mainEXIT(lines 14 31) the Hoare annotation is: (or (= (* (div main_~x3~0 4294967296) 4294967296) main_~x3~0) (= main_~x2~0 (* (div main_~x2~0 4294967296) 4294967296)) (= (* (div main_~x1~0 4294967296) 4294967296) main_~x1~0)) [2020-11-07 06:35:42,284 INFO L269 CegarLoopResult]: At program point L23(lines 23 24) the Hoare annotation is: true [2020-11-07 06:35:42,284 INFO L269 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: true [2020-11-07 06:35:42,284 INFO L269 CegarLoopResult]: At program point L23-3(lines 22 24) the Hoare annotation is: true [2020-11-07 06:35:42,284 INFO L269 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-11-07 06:35:42,284 INFO L269 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: true [2020-11-07 06:35:42,284 INFO L269 CegarLoopResult]: At program point L17-2(line 17) the Hoare annotation is: true [2020-11-07 06:35:42,285 INFO L262 CegarLoopResult]: At program point mainFINAL(lines 14 31) the Hoare annotation is: (or (= (* (div main_~x3~0 4294967296) 4294967296) main_~x3~0) (= main_~x2~0 (* (div main_~x2~0 4294967296) 4294967296)) (= (* (div main_~x1~0 4294967296) 4294967296) main_~x1~0)) [2020-11-07 06:35:42,285 INFO L269 CegarLoopResult]: At program point mainENTRY(lines 14 31) the Hoare annotation is: true [2020-11-07 06:35:42,285 INFO L269 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: true [2020-11-07 06:35:42,285 INFO L269 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: true [2020-11-07 06:35:42,285 INFO L269 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: true [2020-11-07 06:35:42,285 INFO L269 CegarLoopResult]: At program point L22(lines 22 24) the Hoare annotation is: true [2020-11-07 06:35:42,285 INFO L269 CegarLoopResult]: At program point L22-1(line 22) the Hoare annotation is: true [2020-11-07 06:35:42,286 INFO L269 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-11-07 06:35:42,286 INFO L269 CegarLoopResult]: At program point L20-2(lines 20 27) the Hoare annotation is: true [2020-11-07 06:35:42,286 INFO L269 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: true [2020-11-07 06:35:42,286 INFO L262 CegarLoopResult]: At program point L20-3(lines 20 27) the Hoare annotation is: (or (= (* (div main_~x3~0 4294967296) 4294967296) main_~x3~0) (= main_~x2~0 (* (div main_~x2~0 4294967296) 4294967296)) (= (* (div main_~x1~0 4294967296) 4294967296) main_~x1~0)) [2020-11-07 06:35:42,286 INFO L269 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-11-07 06:35:42,287 INFO L269 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: true [2020-11-07 06:35:42,287 INFO L269 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: true [2020-11-07 06:35:42,287 INFO L269 CegarLoopResult]: At program point L18-3(line 18) the Hoare annotation is: true [2020-11-07 06:35:42,287 INFO L269 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: true [2020-11-07 06:35:42,287 INFO L269 CegarLoopResult]: At program point L16-3(line 16) the Hoare annotation is: true [2020-11-07 06:35:42,287 INFO L269 CegarLoopResult]: At program point L16-4(line 16) the Hoare annotation is: true [2020-11-07 06:35:42,288 INFO L269 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2020-11-07 06:35:42,288 INFO L262 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 5 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-11-07 06:35:42,288 INFO L262 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-11-07 06:35:42,288 INFO L262 CegarLoopResult]: At program point L6(lines 6 8) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-11-07 06:35:42,288 INFO L262 CegarLoopResult]: At program point L7-1(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-11-07 06:35:42,289 INFO L262 CegarLoopResult]: At program point L6-2(lines 5 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-11-07 06:35:42,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:35:42 BoogieIcfgContainer [2020-11-07 06:35:42,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 06:35:42,313 INFO L168 Benchmark]: Toolchain (without parser) took 2957.17 ms. Allocated memory is still 155.2 MB. Free memory was 132.1 MB in the beginning and 73.0 MB in the end (delta: 59.1 MB). Peak memory consumption was 60.2 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:42,314 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 155.2 MB. Free memory was 129.7 MB in the beginning and 129.5 MB in the end (delta: 120.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 06:35:42,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.50 ms. Allocated memory is still 155.2 MB. Free memory was 131.4 MB in the beginning and 121.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:42,316 INFO L168 Benchmark]: Boogie Preprocessor took 73.23 ms. Allocated memory is still 155.2 MB. Free memory was 121.6 MB in the beginning and 120.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 06:35:42,317 INFO L168 Benchmark]: RCFGBuilder took 725.24 ms. Allocated memory is still 155.2 MB. Free memory was 120.1 MB in the beginning and 136.3 MB in the end (delta: -16.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:42,319 INFO L168 Benchmark]: TraceAbstraction took 1865.78 ms. Allocated memory is still 155.2 MB. Free memory was 135.8 MB in the beginning and 73.0 MB in the end (delta: 62.8 MB). Peak memory consumption was 62.8 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:42,323 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 155.2 MB. Free memory was 129.7 MB in the beginning and 129.5 MB in the end (delta: 120.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 277.50 ms. Allocated memory is still 155.2 MB. Free memory was 131.4 MB in the beginning and 121.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 73.23 ms. Allocated memory is still 155.2 MB. Free memory was 121.6 MB in the beginning and 120.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 725.24 ms. Allocated memory is still 155.2 MB. Free memory was 120.1 MB in the beginning and 136.3 MB in the end (delta: -16.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1865.78 ms. Allocated memory is still 155.2 MB. Free memory was 135.8 MB in the beginning and 73.0 MB in the end (delta: 62.8 MB). Peak memory consumption was 62.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for main Derived contract for procedure main: (x3 / 4294967296 * 4294967296 == x3 || x2 == x2 / 4294967296 * 4294967296) || x1 / 4294967296 * 4294967296 == x1 - ProcedureContractResult [Line: 5]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 44 SDtfs, 38 SDslu, 48 SDs, 0 SdLazy, 97 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 51 LocationsWithAnnotation, 57 PreInvPairs, 65 NumberOfFragments, 190 HoareAnnotationTreeSize, 57 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 51 FomulaSimplificationsInter, 957 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 2610 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...