/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/ldv-regression/test16.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 01:04:49,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 01:04:49,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 01:04:49,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 01:04:49,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 01:04:49,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 01:04:49,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 01:04:49,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 01:04:49,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 01:04:49,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 01:04:49,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 01:04:49,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 01:04:49,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 01:04:49,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 01:04:49,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 01:04:49,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 01:04:49,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 01:04:49,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 01:04:49,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 01:04:49,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 01:04:49,816 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 01:04:49,837 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 01:04:49,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 01:04:49,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 01:04:49,841 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 01:04:49,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 01:04:49,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 01:04:49,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 01:04:49,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 01:04:49,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 01:04:49,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 01:04:49,845 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 01:04:49,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 01:04:49,845 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 01:04:49,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 01:04:49,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 01:04:49,846 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 01:04:49,847 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 01:04:49,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 01:04:49,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 01:04:49,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 01:04:49,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 01:04:49,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 01:04:49,849 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 01:04:50,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 01:04:50,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 01:04:50,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 01:04:50,265 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 01:04:50,268 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 01:04:50,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test16.c [2020-10-24 01:04:50,368 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d76586f4/9e0b60f43e4a4cf7825a47c432bc284a/FLAG025343ca3 [2020-10-24 01:04:50,964 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 01:04:50,965 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test16.c [2020-10-24 01:04:50,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d76586f4/9e0b60f43e4a4cf7825a47c432bc284a/FLAG025343ca3 [2020-10-24 01:04:51,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d76586f4/9e0b60f43e4a4cf7825a47c432bc284a [2020-10-24 01:04:51,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 01:04:51,337 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 01:04:51,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 01:04:51,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 01:04:51,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 01:04:51,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:04:51" (1/1) ... [2020-10-24 01:04:51,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4ea45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:51, skipping insertion in model container [2020-10-24 01:04:51,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:04:51" (1/1) ... [2020-10-24 01:04:51,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 01:04:51,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 01:04:51,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:04:51,548 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 01:04:51,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:04:51,579 INFO L208 MainTranslator]: Completed translation [2020-10-24 01:04:51,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:51 WrapperNode [2020-10-24 01:04:51,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 01:04:51,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 01:04:51,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 01:04:51,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 01:04:51,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:51" (1/1) ... [2020-10-24 01:04:51,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:51" (1/1) ... [2020-10-24 01:04:51,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:51" (1/1) ... [2020-10-24 01:04:51,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:51" (1/1) ... [2020-10-24 01:04:51,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:51" (1/1) ... [2020-10-24 01:04:51,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:51" (1/1) ... [2020-10-24 01:04:51,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:51" (1/1) ... [2020-10-24 01:04:51,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 01:04:51,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 01:04:51,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 01:04:51,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 01:04:51,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:51" (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 [2020-10-24 01:04:51,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 01:04:51,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 01:04:51,704 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 01:04:51,704 INFO L138 BoogieDeclarations]: Found implementation of procedure equal [2020-10-24 01:04:51,704 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 01:04:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 01:04:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 01:04:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 01:04:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 01:04:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure equal [2020-10-24 01:04:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 01:04:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 01:04:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 01:04:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 01:04:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 01:04:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 01:04:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 01:04:52,077 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 01:04:52,077 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-24 01:04:52,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:04:52 BoogieIcfgContainer [2020-10-24 01:04:52,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 01:04:52,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 01:04:52,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 01:04:52,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 01:04:52,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:04:51" (1/3) ... [2020-10-24 01:04:52,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd84793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:04:52, skipping insertion in model container [2020-10-24 01:04:52,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:04:51" (2/3) ... [2020-10-24 01:04:52,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd84793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:04:52, skipping insertion in model container [2020-10-24 01:04:52,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:04:52" (3/3) ... [2020-10-24 01:04:52,089 INFO L111 eAbstractionObserver]: Analyzing ICFG test16.c [2020-10-24 01:04:52,102 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 01:04:52,108 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 01:04:52,123 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 01:04:52,147 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 01:04:52,147 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 01:04:52,147 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 01:04:52,147 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 01:04:52,148 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 01:04:52,148 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 01:04:52,148 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 01:04:52,148 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 01:04:52,166 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2020-10-24 01:04:52,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-24 01:04:52,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:04:52,177 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, 1, 1] [2020-10-24 01:04:52,177 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:04:52,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:04:52,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1289643105, now seen corresponding path program 1 times [2020-10-24 01:04:52,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:04:52,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [223364372] [2020-10-24 01:04:52,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:04:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:52,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:04:52,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:04:52,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:04:52,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [223364372] [2020-10-24 01:04:52,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:04:52,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-24 01:04:52,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834397447] [2020-10-24 01:04:53,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-24 01:04:53,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:04:53,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-24 01:04:53,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-24 01:04:53,031 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 14 states. [2020-10-24 01:04:54,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:04:54,209 INFO L93 Difference]: Finished difference Result 55 states and 54 transitions. [2020-10-24 01:04:54,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-24 01:04:54,211 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 35 [2020-10-24 01:04:54,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:04:54,219 INFO L225 Difference]: With dead ends: 55 [2020-10-24 01:04:54,219 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 01:04:54,224 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2020-10-24 01:04:54,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 01:04:54,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 01:04:54,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 01:04:54,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 01:04:54,258 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2020-10-24 01:04:54,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:04:54,258 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 01:04:54,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-24 01:04:54,259 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 01:04:54,259 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 01:04:54,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 01:04:54,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 01:04:54,901 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 55 [2020-10-24 01:04:55,527 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 51 [2020-10-24 01:04:55,714 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-10-24 01:04:55,714 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-24 01:04:55,714 INFO L277 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-10-24 01:04:55,714 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-10-24 01:04:55,715 INFO L270 CegarLoopResult]: At program point L7-6(line 7) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|))) (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= ~pa~0.base |~#a~0.base|)) (let ((.cse0 (select (select |#memory_int| equal_~a.base) equal_~a.offset))) (and (= .cse0 (select (select |#memory_int| equal_~b.base) equal_~b.offset)) (= .cse0 .cse1))) (not (= .cse1 (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~pb~0.base)) (not (= ~pa~0.offset |~#a~0.offset|)) (= ~pa~0.base ~pb~0.base))) [2020-10-24 01:04:55,715 INFO L270 CegarLoopResult]: At program point equalEXIT(lines 6 14) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|))) (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= ~pa~0.base |~#a~0.base|)) (let ((.cse0 (select (select |#memory_int| equal_~a.base) equal_~a.offset))) (and (= .cse0 (select (select |#memory_int| equal_~b.base) equal_~b.offset)) (= .cse0 .cse1))) (not (= .cse1 (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~pb~0.base)) (not (= ~pa~0.offset |~#a~0.offset|)) (= ~pa~0.base ~pb~0.base))) [2020-10-24 01:04:55,715 INFO L277 CegarLoopResult]: At program point equalENTRY(lines 6 14) the Hoare annotation is: true [2020-10-24 01:04:55,716 INFO L270 CegarLoopResult]: At program point equalFINAL(lines 6 14) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|))) (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= ~pa~0.base |~#a~0.base|)) (let ((.cse0 (select (select |#memory_int| equal_~a.base) equal_~a.offset))) (and (= .cse0 (select (select |#memory_int| equal_~b.base) equal_~b.offset)) (= .cse0 .cse1))) (not (= .cse1 (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~pb~0.base)) (not (= ~pa~0.offset |~#a~0.offset|)) (= ~pa~0.base ~pb~0.base))) [2020-10-24 01:04:55,716 INFO L270 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: (or (not (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|))) (not (= |~#a~0.offset| ~pa~0.offset)) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= ~pb~0.base |~#b~0.base|)) (not (= |~#a~0.base| ~pa~0.base)) (= ~pb~0.base ~pa~0.base) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|) (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|)))) [2020-10-24 01:04:55,717 INFO L270 CegarLoopResult]: At program point L8(lines 6 14) the Hoare annotation is: (or (not (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|))) (not (= |~#a~0.offset| ~pa~0.offset)) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= ~pb~0.base |~#b~0.base|)) (not (= |~#a~0.base| ~pa~0.base)) (= ~pb~0.base ~pa~0.base) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|) (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|)))) [2020-10-24 01:04:55,717 INFO L270 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|))) (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= ~pa~0.base |~#a~0.base|)) (let ((.cse0 (select (select |#memory_int| equal_~a.base) equal_~a.offset))) (and (= .cse0 (select (select |#memory_int| equal_~b.base) equal_~b.offset)) (= .cse0 .cse1))) (not (= .cse1 (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~pb~0.base)) (not (= ~pa~0.offset |~#a~0.offset|)) (= ~pa~0.base ~pb~0.base))) [2020-10-24 01:04:55,717 INFO L270 CegarLoopResult]: At program point L6(lines 6 14) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|))) (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= ~pa~0.base |~#a~0.base|)) (not (= .cse0 (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~pb~0.base)) (not (= ~pa~0.offset |~#a~0.offset|)) (= (select (select |#memory_int| equal_~a.base) equal_~a.offset) .cse0) (= ~pa~0.base ~pb~0.base))) [2020-10-24 01:04:55,717 INFO L270 CegarLoopResult]: At program point L7-1(line 7) the Hoare annotation is: (let ((.cse2 (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|))) (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= ~pa~0.base |~#a~0.base|)) (let ((.cse0 (select (select |#memory_int| equal_~a.base) equal_~a.offset)) (.cse1 (select (select |#memory_int| equal_~b.base) equal_~b.offset))) (and (= .cse0 .cse1) (= .cse0 .cse2) (= .cse1 |equal_#t~mem7|))) (not (= .cse2 (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~pb~0.base)) (not (= ~pa~0.offset |~#a~0.offset|)) (= ~pa~0.base ~pb~0.base))) [2020-10-24 01:04:55,718 INFO L270 CegarLoopResult]: At program point L7-2(lines 7 9) the Hoare annotation is: (let ((.cse2 (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|))) (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)) (let ((.cse0 (select (select |#memory_int| equal_~a.base) equal_~a.offset)) (.cse1 (select (select |#memory_int| equal_~b.base) equal_~b.offset))) (and (= |equal_#t~mem8| |equal_#t~mem7|) (= .cse0 .cse1) (= .cse0 .cse2) (= .cse1 |equal_#t~mem7|))) (not (= ~pa~0.base |~#a~0.base|)) (not (= .cse2 (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~pb~0.base)) (not (= ~pa~0.offset |~#a~0.offset|)) (= ~pa~0.base ~pb~0.base))) [2020-10-24 01:04:55,718 INFO L270 CegarLoopResult]: At program point L7-3(line 7) the Hoare annotation is: (or (not (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|))) (not (= |~#a~0.offset| ~pa~0.offset)) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= ~pb~0.base |~#b~0.base|)) (not (= |~#a~0.base| ~pa~0.base)) (= ~pb~0.base ~pa~0.base) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|) (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|)))) [2020-10-24 01:04:55,718 INFO L270 CegarLoopResult]: At program point L7-4(line 7) the Hoare annotation is: (or (not (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|))) (not (= |~#a~0.offset| ~pa~0.offset)) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= ~pb~0.base |~#b~0.base|)) (not (= |~#a~0.base| ~pa~0.base)) (= ~pb~0.base ~pa~0.base) (not (= (select |#valid| |~#a~0.base|) 1)) (not (= (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|) (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|)))) [2020-10-24 01:04:55,719 INFO L270 CegarLoopResult]: At program point L7-5(line 7) the Hoare annotation is: (let ((.cse2 (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|))) (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)) (let ((.cse0 (select (select |#memory_int| equal_~a.base) equal_~a.offset)) (.cse1 (select (select |#memory_int| equal_~b.base) equal_~b.offset))) (and (= |equal_#t~mem8| |equal_#t~mem7|) (= .cse0 .cse1) (= .cse0 .cse2) (= .cse1 |equal_#t~mem7|))) (not (= ~pa~0.base |~#a~0.base|)) (not (= .cse2 (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= |~#b~0.base| ~pb~0.base)) (not (= ~pa~0.offset |~#a~0.offset|)) (= ~pa~0.base ~pb~0.base))) [2020-10-24 01:04:55,719 INFO L277 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-10-24 01:04:55,719 INFO L277 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-10-24 01:04:55,719 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 01:04:55,719 INFO L277 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-10-24 01:04:55,719 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-24 01:04:55,720 INFO L277 CegarLoopResult]: At program point L3-5(line 3) the Hoare annotation is: true [2020-10-24 01:04:55,720 INFO L270 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-10-24 01:04:55,720 INFO L270 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-10-24 01:04:55,720 INFO L270 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (= (select |#valid| |~#a~0.base|) 1) [2020-10-24 01:04:55,720 INFO L270 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (= (select |#valid| |~#a~0.base|) 1) [2020-10-24 01:04:55,721 INFO L270 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-10-24 01:04:55,721 INFO L270 CegarLoopResult]: At program point L16-3(line 16) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-10-24 01:04:55,721 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= ~pa~0.base |old(~pa~0.base)|) (= ~pa~0.offset |old(~pa~0.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~pb~0.base |old(~pb~0.base)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~pb~0.offset |old(~pb~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-10-24 01:04:55,721 INFO L277 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-10-24 01:04:55,721 INFO L277 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-10-24 01:04:55,722 INFO L270 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-10-24 01:04:55,722 INFO L270 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= (select |#valid| |~#a~0.base|) 1) (= ~pa~0.offset |~#a~0.offset|) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)) (not (= ~pa~0.base ~pb~0.base)) (= ~pb~0.offset |~#b~0.offset|)) [2020-10-24 01:04:55,722 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-10-24 01:04:55,722 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-24 01:04:55,722 INFO L270 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= (select |#valid| |~#a~0.base|) 1) (= ~pa~0.offset |~#a~0.offset|) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)) (not (= ~pa~0.base ~pb~0.base)) (= ~pb~0.offset |~#b~0.offset|)) [2020-10-24 01:04:55,723 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 19 30) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~pa~0.base |old(~pa~0.base)|) (= |old(~pa~0.offset)| ~pa~0.offset) (= |old(~pb~0.base)| ~pb~0.base) (= |old(~pb~0.offset)| ~pb~0.offset)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-24 01:04:55,723 INFO L270 CegarLoopResult]: At program point mainFINAL(lines 19 30) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)) (= ~pb~0.offset |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-24 01:04:55,723 INFO L270 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)) (= ~pb~0.offset |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-24 01:04:55,723 INFO L270 CegarLoopResult]: At program point L28-1(line 28) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)) (= ~pb~0.offset |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-24 01:04:55,723 INFO L270 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= |main_#t~mem9| (select (select (store |#memory_int| ~pa~0.base (store (select |#memory_int| ~pa~0.base) ~pa~0.offset |main_#t~mem9|)) |~#b~0.base|) |~#b~0.offset|)) (= ~pb~0.offset |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-24 01:04:55,724 INFO L270 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)) (= |main_#t~mem9| (select (select (store |#memory_int| ~pa~0.base (store (select |#memory_int| ~pa~0.base) ~pa~0.offset |main_#t~mem9|)) |~#b~0.base|) |~#b~0.offset|)) (= ~pb~0.offset |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-24 01:04:55,724 INFO L270 CegarLoopResult]: At program point mainEXIT(lines 19 30) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)) (= ~pb~0.offset |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-24 01:04:55,724 INFO L270 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= ~pb~0.offset |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-24 01:04:55,724 INFO L270 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= ~pb~0.offset |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-24 01:04:55,725 INFO L270 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= ~pb~0.offset |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-24 01:04:55,725 INFO L270 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-24 01:04:55,738 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,739 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,747 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,747 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,750 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,750 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,750 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,751 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,751 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,751 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,753 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,753 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:04:55 BoogieIcfgContainer [2020-10-24 01:04:55,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 01:04:55,758 INFO L168 Benchmark]: Toolchain (without parser) took 4426.03 ms. Allocated memory was 164.6 MB in the beginning and 201.3 MB in the end (delta: 36.7 MB). Free memory was 140.2 MB in the beginning and 139.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 111.0 MB. Max. memory is 8.0 GB. [2020-10-24 01:04:55,759 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 164.6 MB. Free memory is still 138.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 01:04:55,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.32 ms. Allocated memory is still 164.6 MB. Free memory was 139.6 MB in the beginning and 130.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-24 01:04:55,762 INFO L168 Benchmark]: Boogie Preprocessor took 33.53 ms. Allocated memory is still 164.6 MB. Free memory was 130.5 MB in the beginning and 129.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-24 01:04:55,763 INFO L168 Benchmark]: RCFGBuilder took 463.06 ms. Allocated memory is still 164.6 MB. Free memory was 129.0 MB in the beginning and 113.5 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-10-24 01:04:55,764 INFO L168 Benchmark]: TraceAbstraction took 3674.69 ms. Allocated memory was 164.6 MB in the beginning and 201.3 MB in the end (delta: 36.7 MB). Free memory was 113.1 MB in the beginning and 139.1 MB in the end (delta: -26.0 MB). Peak memory consumption was 83.7 MB. Max. memory is 8.0 GB. [2020-10-24 01:04:55,769 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 164.6 MB. Free memory is still 138.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 242.32 ms. Allocated memory is still 164.6 MB. Free memory was 139.6 MB in the beginning and 130.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.53 ms. Allocated memory is still 164.6 MB. Free memory was 130.5 MB in the beginning and 129.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 463.06 ms. Allocated memory is still 164.6 MB. Free memory was 129.0 MB in the beginning and 113.5 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3674.69 ms. Allocated memory was 164.6 MB in the beginning and 201.3 MB in the end (delta: 36.7 MB). Free memory was 113.1 MB in the beginning and 139.1 MB in the end (delta: -26.0 MB). Peak memory consumption was 83.7 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 - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - 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: 6]: Loop Invariant [2020-10-24 01:04:55,780 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,780 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,781 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,781 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,783 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((!(unknown-#memory_int-unknown[b][b] == unknown-#memory_int-unknown[a][a]) || !(a == pa)) || !(pb == b)) || !(pb == b)) || !(a == pa)) || pb == pa) || !(\valid[a] == 1)) || !(unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[b][b]) - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for equal [2020-10-24 01:04:55,784 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,784 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,784 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,785 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,785 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,785 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,785 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,786 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,787 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,787 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,787 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,787 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure equal: (((((((!(unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[b][b]) || !(\valid[a] == 1)) || !(pa == a)) || (unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[b][b] && unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[b][b])) || !(unknown-#memory_int-unknown[b][b] == unknown-#memory_int-unknown[a][a])) || !(pb == b)) || !(b == pb)) || !(pa == a)) || pa == pb - ProcedureContractResult [Line: 19]: Procedure Contract for main [2020-10-24 01:04:55,789 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,790 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,791 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 01:04:55,791 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure main: (!(\valid[a] == 1) || ((((b == pb && pa == a) && pa == a) && unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[b][b]) && pb == b)) || b == a - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 108 SDslu, 130 SDs, 0 SdLazy, 167 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred 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, 48 LocationsWithAnnotation, 48 PreInvPairs, 55 NumberOfFragments, 1336 HoareAnnotationTreeSize, 48 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 48 FomulaSimplificationsInter, 1065 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 8636 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...