/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/n.c40.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 06:35:07,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 06:35:07,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 06:35:07,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 06:35:07,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 06:35:07,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 06:35:07,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 06:35:07,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 06:35:07,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 06:35:07,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 06:35:07,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 06:35:07,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 06:35:07,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 06:35:07,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 06:35:07,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 06:35:07,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 06:35:07,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 06:35:07,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 06:35:07,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 06:35:07,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 06:35:08,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 06:35:08,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 06:35:08,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 06:35:08,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 06:35:08,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 06:35:08,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 06:35:08,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 06:35:08,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 06:35:08,039 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 06:35:08,052 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 06:35:08,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 06:35:08,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 06:35:08,054 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 06:35:08,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 06:35:08,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 06:35:08,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 06:35:08,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 06:35:08,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 06:35:08,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 06:35:08,056 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 06:35:08,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 06:35:08,056 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 06:35:08,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 06:35:08,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 06:35:08,057 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 06:35:08,057 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 06:35:08,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 06:35:08,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 06:35:08,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 06:35:08,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 06:35:08,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 06:35:08,059 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 06:35:08,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 06:35:08,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 06:35:08,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 06:35:08,608 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 06:35:08,609 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 06:35:08,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/n.c40.c [2020-11-07 06:35:08,691 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb2d13b6a/8d13214b7d974b27bbb203832cf92e6d/FLAG6651647a1 [2020-11-07 06:35:09,285 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 06:35:09,286 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c40.c [2020-11-07 06:35:09,293 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb2d13b6a/8d13214b7d974b27bbb203832cf92e6d/FLAG6651647a1 [2020-11-07 06:35:09,683 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb2d13b6a/8d13214b7d974b27bbb203832cf92e6d [2020-11-07 06:35:09,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 06:35:09,694 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 06:35:09,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 06:35:09,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 06:35:09,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 06:35:09,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:35:09" (1/1) ... [2020-11-07 06:35:09,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@421cce31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:09, skipping insertion in model container [2020-11-07 06:35:09,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:35:09" (1/1) ... [2020-11-07 06:35:09,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 06:35:09,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 06:35:09,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:35:09,929 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 06:35:09,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:35:09,965 INFO L208 MainTranslator]: Completed translation [2020-11-07 06:35:09,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:09 WrapperNode [2020-11-07 06:35:09,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 06:35:09,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 06:35:09,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 06:35:09,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 06:35:09,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:09" (1/1) ... [2020-11-07 06:35:09,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:09" (1/1) ... [2020-11-07 06:35:09,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:09" (1/1) ... [2020-11-07 06:35:09,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:09" (1/1) ... [2020-11-07 06:35:10,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:09" (1/1) ... [2020-11-07 06:35:10,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:09" (1/1) ... [2020-11-07 06:35:10,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:09" (1/1) ... [2020-11-07 06:35:10,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 06:35:10,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 06:35:10,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 06:35:10,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 06:35:10,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:09" (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 06:35:10,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 06:35:10,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 06:35:10,098 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 06:35:10,098 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 06:35:10,098 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 06:35:10,098 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 06:35:10,099 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 06:35:10,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 06:35:10,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 06:35:10,100 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 06:35:10,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 06:35:10,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 06:35:10,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 06:35:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 06:35:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 06:35:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 06:35:10,651 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 06:35:10,651 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 06:35:10,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:35:10 BoogieIcfgContainer [2020-11-07 06:35:10,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 06:35:10,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 06:35:10,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 06:35:10,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 06:35:10,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:35:09" (1/3) ... [2020-11-07 06:35:10,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c49e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:35:10, skipping insertion in model container [2020-11-07 06:35:10,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:35:09" (2/3) ... [2020-11-07 06:35:10,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c49e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:35:10, skipping insertion in model container [2020-11-07 06:35:10,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:35:10" (3/3) ... [2020-11-07 06:35:10,672 INFO L111 eAbstractionObserver]: Analyzing ICFG n.c40.c [2020-11-07 06:35:10,691 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 06:35:10,695 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 06:35:10,711 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 06:35:10,758 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 06:35:10,758 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 06:35:10,758 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 06:35:10,760 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 06:35:10,761 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 06:35:10,761 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 06:35:10,761 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 06:35:10,761 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 06:35:10,785 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-11-07 06:35:10,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-07 06:35:10,799 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:35:10,800 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 06:35:10,800 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:35:10,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:35:10,812 INFO L82 PathProgramCache]: Analyzing trace with hash -880520726, now seen corresponding path program 1 times [2020-11-07 06:35:10,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:35:10,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1355620180] [2020-11-07 06:35:10,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:35:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:35:11,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:35:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:35:11,337 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 06:35:11,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1355620180] [2020-11-07 06:35:11,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:35:11,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 06:35:11,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836581878] [2020-11-07 06:35:11,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 06:35:11,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:35:11,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 06:35:11,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 06:35:11,367 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 3 states. [2020-11-07 06:35:11,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:35:11,536 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2020-11-07 06:35:11,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 06:35:11,539 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-11-07 06:35:11,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:35:11,550 INFO L225 Difference]: With dead ends: 64 [2020-11-07 06:35:11,552 INFO L226 Difference]: Without dead ends: 41 [2020-11-07 06:35:11,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 06:35:11,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-07 06:35:11,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-11-07 06:35:11,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-07 06:35:11,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2020-11-07 06:35:11,638 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 31 [2020-11-07 06:35:11,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:35:11,639 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2020-11-07 06:35:11,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 06:35:11,639 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2020-11-07 06:35:11,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-07 06:35:11,640 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:35:11,641 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, 1] [2020-11-07 06:35:11,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 06:35:11,641 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:35:11,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:35:11,642 INFO L82 PathProgramCache]: Analyzing trace with hash 921500056, now seen corresponding path program 1 times [2020-11-07 06:35:11,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:35:11,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1030564151] [2020-11-07 06:35:11,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:35:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:35:11,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:35:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:35:11,794 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 06:35:11,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1030564151] [2020-11-07 06:35:11,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:35:11,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 06:35:11,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392116116] [2020-11-07 06:35:11,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 06:35:11,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:35:11,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 06:35:11,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 06:35:11,799 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 4 states. [2020-11-07 06:35:11,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:35:11,993 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2020-11-07 06:35:11,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 06:35:11,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-11-07 06:35:11,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:35:11,996 INFO L225 Difference]: With dead ends: 58 [2020-11-07 06:35:11,996 INFO L226 Difference]: Without dead ends: 49 [2020-11-07 06:35:11,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 06:35:11,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-11-07 06:35:12,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2020-11-07 06:35:12,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-11-07 06:35:12,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2020-11-07 06:35:12,010 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 33 [2020-11-07 06:35:12,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:35:12,011 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2020-11-07 06:35:12,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 06:35:12,011 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2020-11-07 06:35:12,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-07 06:35:12,013 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:35:12,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:35:12,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 06:35:12,013 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:35:12,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:35:12,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1192450142, now seen corresponding path program 1 times [2020-11-07 06:35:12,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:35:12,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714915569] [2020-11-07 06:35:12,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:35:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:35:12,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:35:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:35:12,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:35:12,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1714915569] [2020-11-07 06:35:12,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:35:12,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-07 06:35:12,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172314010] [2020-11-07 06:35:12,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 06:35:12,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:35:12,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 06:35:12,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-07 06:35:12,266 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 5 states. [2020-11-07 06:35:12,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:35:12,395 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2020-11-07 06:35:12,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 06:35:12,396 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-11-07 06:35:12,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:35:12,396 INFO L225 Difference]: With dead ends: 43 [2020-11-07 06:35:12,396 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 06:35:12,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:35:12,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 06:35:12,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 06:35:12,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 06:35:12,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 06:35:12,399 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2020-11-07 06:35:12,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:35:12,399 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 06:35:12,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 06:35:12,399 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 06:35:12,399 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 06:35:12,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 06:35:12,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 06:35:12,822 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-11-07 06:35:12,823 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-07 06:35:12,823 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-11-07 06:35:12,823 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-11-07 06:35:12,823 INFO L269 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-11-07 06:35:12,823 INFO L269 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-11-07 06:35:12,824 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 06:35:12,824 INFO L269 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-11-07 06:35:12,824 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 06:35:12,824 INFO L269 CegarLoopResult]: At program point L3-5(line 3) the Hoare annotation is: true [2020-11-07 06:35:12,824 INFO L262 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= ~i~0 0)) [2020-11-07 06:35:12,825 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~j~0 |old(~j~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#memory_int| |old(#memory_int)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= |~#x~0.offset| |old(~#x~0.offset)|) (= |~#y~0.offset| |old(~#y~0.offset)|) (= ~i~0 |old(~i~0)|) (= ~k~0 |old(~k~0)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#y~0.base| |old(~#y~0.base)|)) [2020-11-07 06:35:12,825 INFO L262 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) [2020-11-07 06:35:12,825 INFO L269 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: true [2020-11-07 06:35:12,825 INFO L262 CegarLoopResult]: At program point L8-1(line 8) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= ~i~0 0)) [2020-11-07 06:35:12,826 INFO L262 CegarLoopResult]: At program point L7-1(line 7) the Hoare annotation is: (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) [2020-11-07 06:35:12,826 INFO L262 CegarLoopResult]: At program point L8-2(line 8) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= ~i~0 0)) [2020-11-07 06:35:12,826 INFO L262 CegarLoopResult]: At program point L7-2(line 7) the Hoare annotation is: (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) [2020-11-07 06:35:12,826 INFO L269 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-11-07 06:35:12,826 INFO L269 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-11-07 06:35:12,827 INFO L262 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= ~i~0 0)) [2020-11-07 06:35:12,827 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 06:35:12,827 INFO L262 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= (select |#memory_int| |~#x~0.base|) ((as const (Array Int Int)) 0)) (= ~i~0 0)) [2020-11-07 06:35:12,827 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 06:35:12,827 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 06:35:12,827 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 10 25) the Hoare annotation is: true [2020-11-07 06:35:12,828 INFO L262 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-11-07 06:35:12,828 INFO L262 CegarLoopResult]: At program point L21-1(lines 21 22) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-11-07 06:35:12,828 INFO L262 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-11-07 06:35:12,828 INFO L269 CegarLoopResult]: At program point L21-4(line 21) the Hoare annotation is: true [2020-11-07 06:35:12,828 INFO L262 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-11-07 06:35:12,829 INFO L262 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-11-07 06:35:12,829 INFO L262 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (= |old(~i~0)| 0)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (and (= (select |#memory_int| |~#x~0.base|) .cse0) (= ~i~0 0)))) [2020-11-07 06:35:12,829 INFO L262 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-11-07 06:35:12,829 INFO L269 CegarLoopResult]: At program point mainFINAL(lines 10 25) the Hoare annotation is: true [2020-11-07 06:35:12,830 INFO L262 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (and (= ~k~0 |old(~k~0)|) (= |#memory_int| |old(#memory_int)|) (= ~i~0 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-11-07 06:35:12,830 INFO L262 CegarLoopResult]: At program point L11-1(line 11) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (= |old(~i~0)| 0)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (and (= (select |#memory_int| |~#x~0.base|) .cse0) (= ~i~0 0)))) [2020-11-07 06:35:12,830 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 10 25) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (and (= ~k~0 |old(~k~0)|) (= |#memory_int| |old(#memory_int)|) (= ~i~0 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-11-07 06:35:12,830 INFO L262 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-11-07 06:35:12,831 INFO L262 CegarLoopResult]: At program point L22-1(line 22) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-11-07 06:35:12,831 INFO L269 CegarLoopResult]: At program point L20(lines 20 22) the Hoare annotation is: true [2020-11-07 06:35:12,831 INFO L262 CegarLoopResult]: At program point L18(lines 10 25) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (= ~i~0 0) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-11-07 06:35:12,831 INFO L262 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-11-07 06:35:12,831 INFO L262 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-11-07 06:35:12,832 INFO L262 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-11-07 06:35:12,832 INFO L262 CegarLoopResult]: At program point L14-1(lines 14 17) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (= |old(~i~0)| 0)) (and (= (select |#memory_int| |~#x~0.base|) .cse0) (= |main_#t~mem8| 0) (= ~i~0 0)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))))) [2020-11-07 06:35:12,832 INFO L262 CegarLoopResult]: At program point L14-2(line 14) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (= ~i~0 0) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-11-07 06:35:12,832 INFO L262 CegarLoopResult]: At program point L14-4(line 14) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-11-07 06:35:12,833 INFO L262 CegarLoopResult]: At program point L14-5(lines 14 17) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (= |old(~i~0)| 0)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (and (= (select |#memory_int| |~#x~0.base|) .cse0) (= ~i~0 0)))) [2020-11-07 06:35:12,833 INFO L262 CegarLoopResult]: At program point L14-6(lines 14 17) the Hoare annotation is: (or (not (= |old(~i~0)| 0)) (= ~i~0 0) (not (= ((as const (Array Int Int)) 0) (select |old(#memory_int)| |~#x~0.base|)))) [2020-11-07 06:35:12,843 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:797) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:239) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-07 06:35:12,848 INFO L168 Benchmark]: Toolchain (without parser) took 3157.52 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.3 MB in the beginning and 124.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 70.7 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:12,849 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 06:35:12,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.69 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 117.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:12,851 INFO L168 Benchmark]: Boogie Preprocessor took 42.06 ms. Allocated memory is still 151.0 MB. Free memory was 117.3 MB in the beginning and 115.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:12,852 INFO L168 Benchmark]: RCFGBuilder took 648.79 ms. Allocated memory is still 151.0 MB. Free memory was 115.8 MB in the beginning and 132.8 MB in the end (delta: -16.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:12,853 INFO L168 Benchmark]: TraceAbstraction took 2184.20 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 132.2 MB in the beginning and 124.4 MB in the end (delta: 7.8 MB). Peak memory consumption was 74.4 MB. Max. memory is 8.0 GB. [2020-11-07 06:35:12,857 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 151.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 269.69 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 117.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 42.06 ms. Allocated memory is still 151.0 MB. Free memory was 117.3 MB in the beginning and 115.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 648.79 ms. Allocated memory is still 151.0 MB. Free memory was 115.8 MB in the beginning and 132.8 MB in the end (delta: -16.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2184.20 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 132.2 MB in the beginning and 124.4 MB in the end (delta: 7.8 MB). Peak memory consumption was 74.4 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 - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...