/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 13:37:15,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:37:15,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:37:15,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 13:37:15,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:37:16,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:37:16,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:37:16,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-23 13:37:16,062 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:37:16,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:37:16,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:37:16,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:37:16,067 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:37:16,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:37:16,068 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:37:16,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:37:16,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:37:16,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:37:16,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:37:16,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:37:16,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:37:16,070 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:37:16,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:37:16,071 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:37:16,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:37:16,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:37:16,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:37:16,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:37:16,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:37:16,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:37:16,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:37:16,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:37:16,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:37:16,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:37:16,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:37:16,073 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:37:16,074 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:37:16,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:37:16,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:37:16,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:37:16,532 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:37:16,532 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:37:16,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test05.c [2021-02-23 13:37:16,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c4a73ae3/3bad16653a654b4eaa0f20741b46dcc3/FLAGf1ebf68ea [2021-02-23 13:37:17,339 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:37:17,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test05.c [2021-02-23 13:37:17,347 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c4a73ae3/3bad16653a654b4eaa0f20741b46dcc3/FLAGf1ebf68ea [2021-02-23 13:37:17,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c4a73ae3/3bad16653a654b4eaa0f20741b46dcc3 [2021-02-23 13:37:17,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:37:17,729 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:37:17,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:37:17,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:37:17,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:37:17,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:37:17" (1/1) ... [2021-02-23 13:37:17,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cee16ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:37:17, skipping insertion in model container [2021-02-23 13:37:17,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:37:17" (1/1) ... [2021-02-23 13:37:17,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:37:17,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:37:17,936 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test05.c[710,723] [2021-02-23 13:37:17,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:37:17,956 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:37:17,983 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test05.c[710,723] [2021-02-23 13:37:17,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:37:18,013 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:37:18,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:37:18 WrapperNode [2021-02-23 13:37:18,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:37:18,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:37:18,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:37:18,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:37:18,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:37:18" (1/1) ... [2021-02-23 13:37:18,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:37:18" (1/1) ... [2021-02-23 13:37:18,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:37:18" (1/1) ... [2021-02-23 13:37:18,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:37:18" (1/1) ... [2021-02-23 13:37:18,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:37:18" (1/1) ... [2021-02-23 13:37:18,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:37:18" (1/1) ... [2021-02-23 13:37:18,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:37:18" (1/1) ... [2021-02-23 13:37:18,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:37:18,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:37:18,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:37:18,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:37:18,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:37:18" (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 [2021-02-23 13:37:18,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:37:18,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:37:18,260 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:37:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-02-23 13:37:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-02-23 13:37:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:37:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:37:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:37:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:37:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:37:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-02-23 13:37:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 13:37:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 13:37:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:37:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-02-23 13:37:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:37:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:37:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:37:18,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:37:18,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:37:18,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:37:18,976 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:37:18,977 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 13:37:18,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:37:18 BoogieIcfgContainer [2021-02-23 13:37:18,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:37:18,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:37:18,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:37:18,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:37:18,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:37:17" (1/3) ... [2021-02-23 13:37:18,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ffe40fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:37:18, skipping insertion in model container [2021-02-23 13:37:18,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:37:18" (2/3) ... [2021-02-23 13:37:18,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ffe40fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:37:18, skipping insertion in model container [2021-02-23 13:37:18,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:37:18" (3/3) ... [2021-02-23 13:37:18,997 INFO L111 eAbstractionObserver]: Analyzing ICFG test05.c [2021-02-23 13:37:19,006 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:37:19,012 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 13:37:19,035 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 13:37:19,081 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:37:19,082 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:37:19,082 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:37:19,082 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:37:19,082 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:37:19,082 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:37:19,083 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:37:19,083 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:37:19,107 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2021-02-23 13:37:19,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-23 13:37:19,115 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:37:19,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:37:19,117 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:37:19,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:37:19,129 INFO L82 PathProgramCache]: Analyzing trace with hash -461259240, now seen corresponding path program 1 times [2021-02-23 13:37:19,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:37:19,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355943924] [2021-02-23 13:37:19,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:37:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:37:19,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:19,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:37:19,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:19,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:37:19,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:19,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:37:19,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:37:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:37:19,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:19,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:37:19,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 13:37:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:37:19,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:19,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:37:19,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:19,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:37:19,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:37:19,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355943924] [2021-02-23 13:37:19,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:37:19,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 13:37:19,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144238741] [2021-02-23 13:37:19,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 13:37:19,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:37:19,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 13:37:19,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-23 13:37:19,690 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 7 states. [2021-02-23 13:37:20,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:37:20,050 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2021-02-23 13:37:20,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 13:37:20,052 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2021-02-23 13:37:20,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:37:20,061 INFO L225 Difference]: With dead ends: 36 [2021-02-23 13:37:20,062 INFO L226 Difference]: Without dead ends: 21 [2021-02-23 13:37:20,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-02-23 13:37:20,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-02-23 13:37:20,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-02-23 13:37:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-02-23 13:37:20,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-02-23 13:37:20,109 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 14 [2021-02-23 13:37:20,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:37:20,113 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-02-23 13:37:20,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 13:37:20,113 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-02-23 13:37:20,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-02-23 13:37:20,114 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:37:20,114 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:37:20,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:37:20,115 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:37:20,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:37:20,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1821975188, now seen corresponding path program 1 times [2021-02-23 13:37:20,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:37:20,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996188578] [2021-02-23 13:37:20,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:37:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:37:20,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:20,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:37:20,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:20,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:37:20,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:20,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:37:20,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:20,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:37:20,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:37:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:37:20,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:20,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:37:20,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 13:37:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:37:20,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:20,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:37:20,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:20,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 13:37:20,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 13:37:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:37:20,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:20,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:37:20,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:37:20,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996188578] [2021-02-23 13:37:20,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:37:20,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 13:37:20,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615804738] [2021-02-23 13:37:20,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 13:37:20,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:37:20,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 13:37:20,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-23 13:37:20,348 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 7 states. [2021-02-23 13:37:20,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:37:20,597 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-02-23 13:37:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-23 13:37:20,598 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2021-02-23 13:37:20,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:37:20,599 INFO L225 Difference]: With dead ends: 23 [2021-02-23 13:37:20,599 INFO L226 Difference]: Without dead ends: 21 [2021-02-23 13:37:20,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-02-23 13:37:20,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-02-23 13:37:20,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-02-23 13:37:20,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-02-23 13:37:20,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2021-02-23 13:37:20,608 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 19 [2021-02-23 13:37:20,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:37:20,608 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2021-02-23 13:37:20,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 13:37:20,609 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2021-02-23 13:37:20,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-02-23 13:37:20,609 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:37:20,610 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] [2021-02-23 13:37:20,610 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 13:37:20,610 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:37:20,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:37:20,611 INFO L82 PathProgramCache]: Analyzing trace with hash 646657834, now seen corresponding path program 1 times [2021-02-23 13:37:20,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:37:20,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124515804] [2021-02-23 13:37:20,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:37:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:37:20,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:20,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:37:20,818 WARN L141 QuantifierPusher]: treesize reduction 8, result has 82.6 percent of original size [2021-02-23 13:37:20,822 WARN L147 QuantifierPusher]: treesize reduction 8, result has 82.6 percent of original size 38 [2021-02-23 13:37:20,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:20,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-23 13:37:20,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:20,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-23 13:37:20,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:20,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:37:20,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:20,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:37:20,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:37:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:37:20,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:20,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:37:20,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 13:37:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:37:21,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:21,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-23 13:37:21,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:21,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-23 13:37:21,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 13:37:21,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:37:21,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:37:21,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-23 13:37:21,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:37:21,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124515804] [2021-02-23 13:37:21,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:37:21,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-23 13:37:21,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115155853] [2021-02-23 13:37:21,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 13:37:21,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:37:21,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 13:37:21,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-02-23 13:37:21,137 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 11 states. [2021-02-23 13:37:21,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:37:21,608 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2021-02-23 13:37:21,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 13:37:21,608 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2021-02-23 13:37:21,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:37:21,609 INFO L225 Difference]: With dead ends: 21 [2021-02-23 13:37:21,609 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 13:37:21,610 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-02-23 13:37:21,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 13:37:21,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 13:37:21,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 13:37:21,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 13:37:21,611 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-02-23 13:37:21,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:37:21,611 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 13:37:21,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 13:37:21,612 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 13:37:21,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 13:37:21,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 13:37:21,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 13:37:21,875 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 13:37:21,875 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 13:37:21,875 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 13:37:21,875 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-23 13:37:21,876 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |#t~string5.base| |old(#t~string5.base)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |old(#t~string4.offset)| |#t~string4.offset|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-23 13:37:21,876 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-23 13:37:21,876 INFO L185 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |f_#in~a| f_~a) (= |#memory_int| |old(#memory_int)|) (= |f_#in~p2.base| f_~p2.base) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= f_~p1.offset |f_#in~p1.offset|) (= |f_#in~p1.base| f_~p1.base) (= f_~p2.offset |f_#in~p2.offset|)) [2021-02-23 13:37:21,876 INFO L189 CegarLoopUtils]: For program point L14(lines 14 19) no Hoare annotation was computed. [2021-02-23 13:37:21,877 INFO L189 CegarLoopUtils]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-02-23 13:37:21,877 INFO L189 CegarLoopUtils]: For program point fEXIT(lines 13 20) no Hoare annotation was computed. [2021-02-23 13:37:21,877 INFO L185 CegarLoopUtils]: At program point fENTRY(lines 13 20) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2021-02-23 13:37:21,877 INFO L189 CegarLoopUtils]: For program point fFINAL(lines 13 20) no Hoare annotation was computed. [2021-02-23 13:37:21,877 INFO L189 CegarLoopUtils]: For program point gEXIT(lines 6 11) no Hoare annotation was computed. [2021-02-23 13:37:21,877 INFO L189 CegarLoopUtils]: For program point gFINAL(lines 6 11) no Hoare annotation was computed. [2021-02-23 13:37:21,878 INFO L185 CegarLoopUtils]: At program point gENTRY(lines 6 11) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2021-02-23 13:37:21,878 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-23 13:37:21,878 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 13:37:21,878 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 13:37:21,878 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-23 13:37:21,878 INFO L189 CegarLoopUtils]: For program point L34-1(line 34) no Hoare annotation was computed. [2021-02-23 13:37:21,879 INFO L189 CegarLoopUtils]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2021-02-23 13:37:21,879 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 22 48) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2021-02-23 13:37:21,879 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 22 48) no Hoare annotation was computed. [2021-02-23 13:37:21,879 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 22 48) no Hoare annotation was computed. [2021-02-23 13:37:21,879 INFO L185 CegarLoopUtils]: At program point L41(lines 22 48) the Hoare annotation is: false [2021-02-23 13:37:21,879 INFO L189 CegarLoopUtils]: For program point L40(lines 40 42) no Hoare annotation was computed. [2021-02-23 13:37:21,880 INFO L189 CegarLoopUtils]: For program point L36(lines 36 38) no Hoare annotation was computed. [2021-02-23 13:37:21,880 INFO L185 CegarLoopUtils]: At program point L34(line 34) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#p2~0.base|) |main_~#p2~0.offset|))) (and (not (= .cse0 |main_~#a~0.base|)) (= |main_#t~mem11| 4) (not (= |main_~#p2~0.base| |main_~#a~0.base|)) (not (= |main_~#p1~0.base| |main_~#a~0.base|)) (not (= |main_~#p1~0.base| |main_~#p2~0.base|)) (not (= .cse0 |main_~#p1~0.base|)))) [2021-02-23 13:37:21,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 01:37:21 BoogieIcfgContainer [2021-02-23 13:37:21,891 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 13:37:21,893 INFO L168 Benchmark]: Toolchain (without parser) took 4175.20 ms. Allocated memory was 153.1 MB in the beginning and 204.5 MB in the end (delta: 51.4 MB). Free memory was 128.9 MB in the beginning and 105.4 MB in the end (delta: 23.6 MB). Peak memory consumption was 75.6 MB. Max. memory is 8.0 GB. [2021-02-23 13:37:21,894 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 153.1 MB. Free memory is still 127.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:37:21,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.80 ms. Allocated memory is still 153.1 MB. Free memory was 127.9 MB in the beginning and 118.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 13:37:21,901 INFO L168 Benchmark]: Boogie Preprocessor took 80.44 ms. Allocated memory is still 153.1 MB. Free memory was 118.4 MB in the beginning and 116.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-23 13:37:21,902 INFO L168 Benchmark]: RCFGBuilder took 881.07 ms. Allocated memory is still 153.1 MB. Free memory was 116.6 MB in the beginning and 130.8 MB in the end (delta: -14.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-02-23 13:37:21,907 INFO L168 Benchmark]: TraceAbstraction took 2905.21 ms. Allocated memory was 153.1 MB in the beginning and 204.5 MB in the end (delta: 51.4 MB). Free memory was 130.3 MB in the beginning and 105.4 MB in the end (delta: 24.9 MB). Peak memory consumption was 76.8 MB. Max. memory is 8.0 GB. [2021-02-23 13:37:21,913 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 153.1 MB. Free memory is still 127.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 283.80 ms. Allocated memory is still 153.1 MB. Free memory was 127.9 MB in the beginning and 118.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 80.44 ms. Allocated memory is still 153.1 MB. Free memory was 118.4 MB in the beginning and 116.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 881.07 ms. Allocated memory is still 153.1 MB. Free memory was 116.6 MB in the beginning and 130.8 MB in the end (delta: -14.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2905.21 ms. Allocated memory was 153.1 MB in the beginning and 204.5 MB in the end (delta: 51.4 MB). Free memory was 130.3 MB in the beginning and 105.4 MB in the end (delta: 24.9 MB). Peak memory consumption was 76.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 46]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 44 SDtfs, 34 SDslu, 88 SDs, 0 SdLazy, 239 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 127 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 123 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 8704 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...