/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test15.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:52:43,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:52:43,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:52:43,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 00:52:43,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:52:43,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:52:43,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:52:43,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:52:43,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:52:43,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:52:43,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:52:43,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:52:43,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:52:43,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:52:43,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:52:43,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:52:43,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 00:52:43,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:52:43,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:52:43,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:52:43,240 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 00:52:43,261 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:52:43,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:52:43,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:52:43,265 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:52:43,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:52:43,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:52:43,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:52:43,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:52:43,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:52:43,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:52:43,268 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:52:43,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:52:43,269 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:52:43,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:52:43,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:52:43,270 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:52:43,270 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:52:43,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:52:43,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:52:43,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:52:43,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:52:43,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:52:43,272 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:52:43,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:52:43,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:52:43,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:52:43,736 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:52:43,736 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:52:43,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test15.c [2020-11-07 00:52:43,842 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7143f5e2e/92becc1c69474bdf9a9c1d1b15fdf3b5/FLAGbf25c2e8e [2020-11-07 00:52:44,557 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:52:44,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test15.c [2020-11-07 00:52:44,567 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7143f5e2e/92becc1c69474bdf9a9c1d1b15fdf3b5/FLAGbf25c2e8e [2020-11-07 00:52:44,900 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7143f5e2e/92becc1c69474bdf9a9c1d1b15fdf3b5 [2020-11-07 00:52:44,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:52:44,911 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:52:44,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:52:44,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:52:44,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:52:44,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:52:44" (1/1) ... [2020-11-07 00:52:44,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2acbae04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:44, skipping insertion in model container [2020-11-07 00:52:44,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:52:44" (1/1) ... [2020-11-07 00:52:44,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:52:44,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:52:45,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:52:45,130 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:52:45,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:52:45,170 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:52:45,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:45 WrapperNode [2020-11-07 00:52:45,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:52:45,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:52:45,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:52:45,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:52:45,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:45" (1/1) ... [2020-11-07 00:52:45,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:45" (1/1) ... [2020-11-07 00:52:45,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:45" (1/1) ... [2020-11-07 00:52:45,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:45" (1/1) ... [2020-11-07 00:52:45,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:45" (1/1) ... [2020-11-07 00:52:45,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:45" (1/1) ... [2020-11-07 00:52:45,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:45" (1/1) ... [2020-11-07 00:52:45,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:52:45,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:52:45,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:52:45,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:52:45,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:45" (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 00:52:45,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:52:45,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:52:45,298 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:52:45,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2020-11-07 00:52:45,298 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:52:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:52:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:52:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:52:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:52:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:52:45,300 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2020-11-07 00:52:45,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:52:45,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:52:45,300 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:52:45,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:52:45,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:52:45,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:52:45,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:52:45,648 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:52:45,648 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 00:52:45,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:52:45 BoogieIcfgContainer [2020-11-07 00:52:45,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:52:45,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:52:45,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:52:45,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:52:45,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:52:44" (1/3) ... [2020-11-07 00:52:45,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671a3ba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:52:45, skipping insertion in model container [2020-11-07 00:52:45,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:45" (2/3) ... [2020-11-07 00:52:45,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671a3ba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:52:45, skipping insertion in model container [2020-11-07 00:52:45,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:52:45" (3/3) ... [2020-11-07 00:52:45,663 INFO L111 eAbstractionObserver]: Analyzing ICFG test15.c [2020-11-07 00:52:45,693 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:52:45,698 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:52:45,720 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:52:45,754 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:52:45,755 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:52:45,755 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:52:45,756 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:52:45,756 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:52:45,756 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:52:45,756 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:52:45,756 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:52:45,786 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-11-07 00:52:45,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-07 00:52:45,814 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:52:45,815 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, 1] [2020-11-07 00:52:45,819 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:52:45,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:52:45,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1720099643, now seen corresponding path program 1 times [2020-11-07 00:52:45,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:52:45,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303951898] [2020-11-07 00:52:45,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:52:46,024 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:52:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:46,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:52:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:46,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-11-07 00:52:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:52:46,724 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 00:52:46,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303951898] [2020-11-07 00:52:46,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:52:46,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-07 00:52:46,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434718251] [2020-11-07 00:52:46,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 00:52:46,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:52:46,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 00:52:46,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-11-07 00:52:46,776 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 13 states. [2020-11-07 00:52:47,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:52:47,801 INFO L93 Difference]: Finished difference Result 56 states and 55 transitions. [2020-11-07 00:52:47,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 00:52:47,804 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 32 [2020-11-07 00:52:47,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:52:47,812 INFO L225 Difference]: With dead ends: 56 [2020-11-07 00:52:47,812 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 00:52:47,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2020-11-07 00:52:47,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 00:52:47,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 00:52:47,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 00:52:47,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 00:52:47,851 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2020-11-07 00:52:47,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:52:47,851 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 00:52:47,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 00:52:47,852 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 00:52:47,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 00:52:47,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:52:47,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 00:52:48,469 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-11-07 00:52:48,469 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-07 00:52:48,469 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-11-07 00:52:48,470 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-11-07 00:52:48,470 INFO L269 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-11-07 00:52:48,470 INFO L269 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-11-07 00:52:48,470 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 00:52:48,470 INFO L269 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-11-07 00:52:48,471 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 00:52:48,471 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2020-11-07 00:52:48,471 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |old(#t~string4.offset)| |#t~string4.offset|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-11-07 00:52:48,471 INFO L269 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-11-07 00:52:48,471 INFO L269 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-11-07 00:52:48,472 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 00:52:48,472 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 00:52:48,472 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 00:52:48,472 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 00:52:48,472 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 00:52:48,473 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 11 23) the Hoare annotation is: true [2020-11-07 00:52:48,473 INFO L262 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: false [2020-11-07 00:52:48,473 INFO L262 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))) [2020-11-07 00:52:48,474 INFO L262 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|))) (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= .cse0 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)) (= .cse0 |main_#t~mem9|))) [2020-11-07 00:52:48,474 INFO L262 CegarLoopResult]: At program point L15-1(lines 15 17) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|))) (and (= |main_#t~mem10| |main_#t~mem9|) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= .cse0 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)) (= .cse0 |main_#t~mem9|))) [2020-11-07 00:52:48,474 INFO L262 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= |#memory_int| |old(#memory_int)|) (= (select |#valid| |main_~#a~0.base|) 1)) [2020-11-07 00:52:48,474 INFO L262 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: false [2020-11-07 00:52:48,475 INFO L269 CegarLoopResult]: At program point mainFINAL(lines 11 23) the Hoare annotation is: true [2020-11-07 00:52:48,475 INFO L262 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1)) [2020-11-07 00:52:48,475 INFO L262 CegarLoopResult]: At program point L15-3(line 15) the Hoare annotation is: false [2020-11-07 00:52:48,475 INFO L262 CegarLoopResult]: At program point L15-4(line 15) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|))) (and (= |main_#t~mem10| |main_#t~mem9|) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= .cse0 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)) (= .cse0 |main_#t~mem9|))) [2020-11-07 00:52:48,476 INFO L262 CegarLoopResult]: At program point L15-5(line 15) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))) [2020-11-07 00:52:48,476 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 11 23) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-11-07 00:52:48,476 INFO L262 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: false [2020-11-07 00:52:48,476 INFO L262 CegarLoopResult]: At program point L16(lines 11 23) the Hoare annotation is: false [2020-11-07 00:52:48,476 INFO L262 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1)) [2020-11-07 00:52:48,477 INFO L262 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))) [2020-11-07 00:52:48,477 INFO L262 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= (select |#valid| |main_~#a~0.base|) 1)) [2020-11-07 00:52:48,477 INFO L262 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= |#memory_int| |old(#memory_int)|) (= (select |#valid| |main_~#a~0.base|) 1)) [2020-11-07 00:52:48,477 INFO L262 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))) [2020-11-07 00:52:48,478 INFO L262 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))) [2020-11-07 00:52:48,478 INFO L269 CegarLoopResult]: At program point L12-4(line 12) the Hoare annotation is: true [2020-11-07 00:52:48,478 INFO L269 CegarLoopResult]: At program point L12-5(line 12) the Hoare annotation is: true [2020-11-07 00:52:48,478 INFO L262 CegarLoopResult]: At program point L12-6(line 12) the Hoare annotation is: false [2020-11-07 00:52:48,478 INFO L262 CegarLoopResult]: At program point L12-7(line 12) the Hoare annotation is: false [2020-11-07 00:52:48,479 INFO L262 CegarLoopResult]: At program point L12-8(line 12) the Hoare annotation is: false [2020-11-07 00:52:48,479 INFO L262 CegarLoopResult]: At program point L12-9(line 12) the Hoare annotation is: false [2020-11-07 00:52:48,479 INFO L262 CegarLoopResult]: At program point assignEXIT(lines 7 9) the Hoare annotation is: (and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pb.base |assign_#in~pb.base|) (or (= |assign_#in~pa.base| |assign_#in~pb.base|) (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pb.base|) |assign_#in~pb.offset|))) (= assign_~pa.offset |assign_#in~pa.offset|) (= assign_~pb.offset |assign_#in~pb.offset|)) [2020-11-07 00:52:48,479 INFO L262 CegarLoopResult]: At program point assignENTRY(lines 7 9) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-11-07 00:52:48,480 INFO L262 CegarLoopResult]: At program point assignFINAL(lines 7 9) the Hoare annotation is: (and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pb.base |assign_#in~pb.base|) (or (= |assign_#in~pa.base| |assign_#in~pb.base|) (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pb.base|) |assign_#in~pb.offset|))) (= assign_~pa.offset |assign_#in~pa.offset|) (= assign_~pb.offset |assign_#in~pb.offset|)) [2020-11-07 00:52:48,480 INFO L262 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pb.base |assign_#in~pb.base|) (= |#memory_int| |old(#memory_int)|) (= assign_~pa.offset |assign_#in~pa.offset|) (= assign_~pb.offset |assign_#in~pb.offset|)) [2020-11-07 00:52:48,480 INFO L262 CegarLoopResult]: At program point L7(lines 7 9) the Hoare annotation is: (and (= assign_~pa.base |assign_#in~pa.base|) (= |#memory_int| |old(#memory_int)|) (= assign_~pa.offset |assign_#in~pa.offset|)) [2020-11-07 00:52:48,480 INFO L262 CegarLoopResult]: At program point L8-1(line 8) the Hoare annotation is: (and (or (= |assign_#in~pa.base| |assign_#in~pb.base|) (= |assign_#t~mem7| (select (select (store |#memory_int| assign_~pa.base (store (select |#memory_int| assign_~pa.base) assign_~pa.offset |assign_#t~mem7|)) |assign_#in~pb.base|) |assign_#in~pb.offset|))) (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pb.base |assign_#in~pb.base|) (= |#memory_int| |old(#memory_int)|) (= assign_~pa.offset |assign_#in~pa.offset|) (= assign_~pb.offset |assign_#in~pb.offset|)) [2020-11-07 00:52:48,481 INFO L262 CegarLoopResult]: At program point L8-2(line 8) the Hoare annotation is: (let ((.cse0 (= |assign_#in~pa.base| |assign_#in~pb.base|))) (and (or .cse0 (= |assign_#t~mem7| (select (select (store |#memory_int| assign_~pa.base (store (select |#memory_int| assign_~pa.base) assign_~pa.offset |assign_#t~mem7|)) |assign_#in~pb.base|) |assign_#in~pb.offset|))) (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pb.base |assign_#in~pb.base|) (or .cse0 (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pb.base|) |assign_#in~pb.offset|))) (= assign_~pa.offset |assign_#in~pa.offset|) (= assign_~pb.offset |assign_#in~pb.offset|))) [2020-11-07 00:52:48,499 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 00:52:48,500 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 00:52:48,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:52:48 BoogieIcfgContainer [2020-11-07 00:52:48,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:52:48,511 INFO L168 Benchmark]: Toolchain (without parser) took 3603.54 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 128.2 MB in the beginning and 80.7 MB in the end (delta: 47.5 MB). Peak memory consumption was 80.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:48,513 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 99.0 MB in the beginning and 98.9 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:52:48,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.13 ms. Allocated memory is still 151.0 MB. Free memory was 127.6 MB in the beginning and 118.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:48,515 INFO L168 Benchmark]: Boogie Preprocessor took 39.36 ms. Allocated memory is still 151.0 MB. Free memory was 118.5 MB in the beginning and 117.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:48,516 INFO L168 Benchmark]: RCFGBuilder took 437.65 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 127.6 MB in the end (delta: -10.5 MB). Peak memory consumption was 11.8 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:48,518 INFO L168 Benchmark]: TraceAbstraction took 2855.32 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.2 MB in the beginning and 80.7 MB in the end (delta: 46.5 MB). Peak memory consumption was 77.8 MB. Max. memory is 8.0 GB. [2020-11-07 00:52:48,522 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 99.0 MB in the beginning and 98.9 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 258.13 ms. Allocated memory is still 151.0 MB. Free memory was 127.6 MB in the beginning and 118.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.36 ms. Allocated memory is still 151.0 MB. Free memory was 118.5 MB in the beginning and 117.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 437.65 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 127.6 MB in the end (delta: -10.5 MB). Peak memory consumption was 11.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2855.32 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.2 MB in the beginning and 80.7 MB in the end (delta: 46.5 MB). Peak memory consumption was 77.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * 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: 11]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 11]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 7]: Procedure Contract for assign [2020-11-07 00:52:48,532 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 00:52:48,533 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 00:52:48,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 00:52:48,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure assign: (((pa == pa && pb == pb) && (pa == pb || unknown-#memory_int-unknown[pa][pa] == unknown-#memory_int-unknown[pb][pb])) && pa == pa) && pb == pb - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 48 SDslu, 99 SDs, 0 SdLazy, 219 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred 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, 52 LocationsWithAnnotation, 52 PreInvPairs, 56 NumberOfFragments, 483 HoareAnnotationTreeSize, 52 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 52 FomulaSimplificationsInter, 256 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...