/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/test18.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 05:16:47,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 05:16:47,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 05:16:47,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 05:16:47,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 05:16:47,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 05:16:47,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 05:16:47,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 05:16:47,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 05:16:47,817 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 05:16:47,818 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 05:16:47,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 05:16:47,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 05:16:47,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 05:16:47,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 05:16:47,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 05:16:47,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 05:16:47,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 05:16:47,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 05:16:47,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 05:16:47,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 05:16:47,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 05:16:47,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 05:16:47,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 05:16:47,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 05:16:47,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 05:16:47,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 05:16:47,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 05:16:47,862 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 05:16:47,874 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 05:16:47,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 05:16:47,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 05:16:47,876 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 05:16:47,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 05:16:47,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 05:16:47,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 05:16:47,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 05:16:47,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 05:16:47,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 05:16:47,877 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 05:16:47,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 05:16:47,877 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 05:16:47,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 05:16:47,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 05:16:47,878 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 05:16:47,878 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 05:16:47,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 05:16:47,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:16:47,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 05:16:47,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 05:16:47,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 05:16:47,879 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 05:16:48,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 05:16:48,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 05:16:48,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 05:16:48,268 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 05:16:48,269 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 05:16:48,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test18.c [2020-11-07 05:16:48,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59f43a17d/2b4e54317afa41fa8cbb187b7cd84c9c/FLAG5dc731dd6 [2020-11-07 05:16:48,919 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 05:16:48,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test18.c [2020-11-07 05:16:48,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59f43a17d/2b4e54317afa41fa8cbb187b7cd84c9c/FLAG5dc731dd6 [2020-11-07 05:16:49,307 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59f43a17d/2b4e54317afa41fa8cbb187b7cd84c9c [2020-11-07 05:16:49,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 05:16:49,321 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 05:16:49,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 05:16:49,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 05:16:49,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 05:16:49,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:16:49" (1/1) ... [2020-11-07 05:16:49,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c6c749b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:49, skipping insertion in model container [2020-11-07 05:16:49,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:16:49" (1/1) ... [2020-11-07 05:16:49,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 05:16:49,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 05:16:49,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:16:49,517 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 05:16:49,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:16:49,555 INFO L208 MainTranslator]: Completed translation [2020-11-07 05:16:49,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:49 WrapperNode [2020-11-07 05:16:49,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 05:16:49,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 05:16:49,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 05:16:49,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 05:16:49,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:49" (1/1) ... [2020-11-07 05:16:49,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:49" (1/1) ... [2020-11-07 05:16:49,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:49" (1/1) ... [2020-11-07 05:16:49,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:49" (1/1) ... [2020-11-07 05:16:49,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:49" (1/1) ... [2020-11-07 05:16:49,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:49" (1/1) ... [2020-11-07 05:16:49,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:49" (1/1) ... [2020-11-07 05:16:49,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 05:16:49,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 05:16:49,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 05:16:49,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 05:16:49,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:16:49,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 05:16:49,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 05:16:49,734 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 05:16:49,734 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-11-07 05:16:49,734 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-11-07 05:16:49,734 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 05:16:49,735 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 05:16:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 05:16:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 05:16:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 05:16:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-11-07 05:16:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 05:16:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 05:16:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-11-07 05:16:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 05:16:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 05:16:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 05:16:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 05:16:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 05:16:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 05:16:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 05:16:50,235 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 05:16:50,236 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 05:16:50,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:16:50 BoogieIcfgContainer [2020-11-07 05:16:50,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 05:16:50,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 05:16:50,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 05:16:50,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 05:16:50,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:16:49" (1/3) ... [2020-11-07 05:16:50,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4790f675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:16:50, skipping insertion in model container [2020-11-07 05:16:50,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:16:49" (2/3) ... [2020-11-07 05:16:50,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4790f675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:16:50, skipping insertion in model container [2020-11-07 05:16:50,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:16:50" (3/3) ... [2020-11-07 05:16:50,247 INFO L111 eAbstractionObserver]: Analyzing ICFG test18.c [2020-11-07 05:16:50,265 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 05:16:50,269 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 05:16:50,284 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 05:16:50,309 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 05:16:50,309 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 05:16:50,309 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 05:16:50,309 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 05:16:50,309 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 05:16:50,309 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 05:16:50,310 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 05:16:50,310 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 05:16:50,326 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2020-11-07 05:16:50,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-07 05:16:50,338 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:16:50,339 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, 1, 1, 1, 1, 1, 1] [2020-11-07 05:16:50,339 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:16:50,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:16:50,346 INFO L82 PathProgramCache]: Analyzing trace with hash -2064385046, now seen corresponding path program 1 times [2020-11-07 05:16:50,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:16:50,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700724791] [2020-11-07 05:16:50,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:16:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:16:50,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:16:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:16:50,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 05:16:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:16:51,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 05:16:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:16:51,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:16:51,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700724791] [2020-11-07 05:16:51,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:16:51,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-11-07 05:16:51,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038523402] [2020-11-07 05:16:51,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-07 05:16:51,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:16:51,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-07 05:16:51,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-11-07 05:16:51,320 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 15 states. [2020-11-07 05:16:52,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:16:52,104 INFO L93 Difference]: Finished difference Result 64 states and 63 transitions. [2020-11-07 05:16:52,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 05:16:52,106 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 41 [2020-11-07 05:16:52,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:16:52,113 INFO L225 Difference]: With dead ends: 64 [2020-11-07 05:16:52,113 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 05:16:52,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2020-11-07 05:16:52,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 05:16:52,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 05:16:52,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 05:16:52,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 05:16:52,144 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2020-11-07 05:16:52,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:16:52,145 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 05:16:52,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-07 05:16:52,145 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 05:16:52,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 05:16:52,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 05:16:52,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 05:16:52,737 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-11-07 05:16:52,737 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-07 05:16:52,738 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-11-07 05:16:52,738 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-11-07 05:16:52,738 INFO L269 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-11-07 05:16:52,738 INFO L269 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-11-07 05:16:52,738 INFO L262 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 05:16:52,739 INFO L269 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-11-07 05:16:52,739 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 05:16:52,739 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2020-11-07 05:16:52,739 INFO L262 CegarLoopResult]: 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|)) [2020-11-07 05:16:52,739 INFO L269 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-11-07 05:16:52,740 INFO L269 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-11-07 05:16:52,740 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 05:16:52,740 INFO L262 CegarLoopResult]: At program point fFINAL(lines 10 13) the Hoare annotation is: (= (select (select |#memory_int| |f_#in~pb.base|) |f_#in~pb.offset|) 0) [2020-11-07 05:16:52,740 INFO L262 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: (and (= |f_#in~pb.base| (select (select |#memory_$Pointer$.base| |f_~#pa.base|) |f_~#pa.offset|)) (= |f_#in~pb.base| |f_#t~mem8.base|) (= |f_#t~mem8.offset| |f_#in~pb.offset|) (= (select (select |#memory_$Pointer$.offset| |f_~#pa.base|) |f_~#pa.offset|) |f_#in~pb.offset|)) [2020-11-07 05:16:52,740 INFO L262 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (and (= |f_#in~pb.base| (select (select |#memory_$Pointer$.base| |f_~#pa.base|) |f_~#pa.offset|)) (= (select (select |#memory_$Pointer$.offset| |f_~#pa.base|) |f_~#pa.offset|) |f_#in~pb.offset|)) [2020-11-07 05:16:52,741 INFO L262 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: (and (= |f_#in~pb.base| |f_#t~mem8.base|) (= |f_#t~mem8.offset| |f_#in~pb.offset|) (= (select (select |#memory_int| |f_#in~pb.base|) |f_#in~pb.offset|) 0)) [2020-11-07 05:16:52,741 INFO L262 CegarLoopResult]: At program point L10(lines 10 13) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-11-07 05:16:52,741 INFO L269 CegarLoopResult]: At program point L10-1(lines 10 13) the Hoare annotation is: true [2020-11-07 05:16:52,741 INFO L269 CegarLoopResult]: At program point L10-2(lines 10 13) the Hoare annotation is: true [2020-11-07 05:16:52,741 INFO L262 CegarLoopResult]: At program point fEXIT(lines 10 13) the Hoare annotation is: (= (select (select |#memory_int| |f_#in~pb.base|) |f_#in~pb.offset|) 0) [2020-11-07 05:16:52,742 INFO L262 CegarLoopResult]: At program point L10-3(lines 10 13) the Hoare annotation is: (and (= (select (select |#memory_$Pointer$.offset| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.offset|) (= (select (select |#memory_$Pointer$.base| |f_~#pb.base|) |f_~#pb.offset|) |f_#in~pb.base|)) [2020-11-07 05:16:52,742 INFO L262 CegarLoopResult]: At program point L10-4(lines 10 13) the Hoare annotation is: (= (select (select |#memory_int| |f_#in~pb.base|) |f_#in~pb.offset|) 0) [2020-11-07 05:16:52,742 INFO L262 CegarLoopResult]: At program point fENTRY(lines 10 13) 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|)) [2020-11-07 05:16:52,742 INFO L262 CegarLoopResult]: At program point L10-5(lines 10 13) the Hoare annotation is: (= (select (select |#memory_int| |f_#in~pb.base|) |f_#in~pb.offset|) 0) [2020-11-07 05:16:52,743 INFO L262 CegarLoopResult]: At program point L10-6(lines 10 13) the Hoare annotation is: (= (select (select |#memory_int| |f_#in~pb.base|) |f_#in~pb.offset|) 0) [2020-11-07 05:16:52,743 INFO L262 CegarLoopResult]: At program point L10-7(lines 10 13) the Hoare annotation is: (= (select (select |#memory_int| |f_#in~pb.base|) |f_#in~pb.offset|) 0) [2020-11-07 05:16:52,743 INFO L262 CegarLoopResult]: At program point gEXIT(lines 6 8) the Hoare annotation is: (and (= (select (select |#memory_$Pointer$.offset| |g_#in~ppa.base|) |g_#in~ppa.offset|) (select (select |old(#memory_$Pointer$.offset)| |g_#in~ppb.base|) |g_#in~ppb.offset|)) (= (select (select |old(#memory_$Pointer$.base)| |g_#in~ppb.base|) |g_#in~ppb.offset|) (select (select |#memory_$Pointer$.base| |g_#in~ppa.base|) |g_#in~ppa.offset|))) [2020-11-07 05:16:52,743 INFO L262 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (and (= g_~ppb.offset |g_#in~ppb.offset|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |g_#in~ppa.offset| g_~ppa.offset) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |g_#in~ppb.base| g_~ppb.base) (= |g_#in~ppa.base| g_~ppa.base)) [2020-11-07 05:16:52,743 INFO L262 CegarLoopResult]: At program point L6(lines 6 8) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |g_#in~ppa.offset| g_~ppa.offset) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |g_#in~ppa.base| g_~ppa.base)) [2020-11-07 05:16:52,744 INFO L262 CegarLoopResult]: At program point L7-1(line 7) the Hoare annotation is: (and (= g_~ppb.offset |g_#in~ppb.offset|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |g_#in~ppa.offset| g_~ppa.offset) (= |#memory_int| |old(#memory_int)|) (= (select (select |#memory_$Pointer$.base| |g_#in~ppb.base|) |g_#in~ppb.offset|) |g_#t~mem7.base|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |g_#in~ppb.base| g_~ppb.base) (= (select (select |#memory_$Pointer$.offset| |g_#in~ppb.base|) |g_#in~ppb.offset|) |g_#t~mem7.offset|) (= |g_#in~ppa.base| g_~ppa.base)) [2020-11-07 05:16:52,744 INFO L262 CegarLoopResult]: At program point L7-2(line 7) the Hoare annotation is: (and (= (select (select |#memory_$Pointer$.offset| |g_#in~ppa.base|) |g_#in~ppa.offset|) (select (select |old(#memory_$Pointer$.offset)| |g_#in~ppb.base|) |g_#in~ppb.offset|)) (= (select (select |old(#memory_$Pointer$.base)| |g_#in~ppb.base|) |g_#in~ppb.offset|) (select (select |#memory_$Pointer$.base| |g_#in~ppa.base|) |g_#in~ppa.offset|))) [2020-11-07 05:16:52,744 INFO L262 CegarLoopResult]: At program point gFINAL(lines 6 8) the Hoare annotation is: (and (= (select (select |#memory_$Pointer$.offset| |g_#in~ppa.base|) |g_#in~ppa.offset|) (select (select |old(#memory_$Pointer$.offset)| |g_#in~ppb.base|) |g_#in~ppb.offset|)) (= (select (select |old(#memory_$Pointer$.base)| |g_#in~ppb.base|) |g_#in~ppb.offset|) (select (select |#memory_$Pointer$.base| |g_#in~ppa.base|) |g_#in~ppa.offset|))) [2020-11-07 05:16:52,744 INFO L262 CegarLoopResult]: At program point gENTRY(lines 6 8) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-11-07 05:16:52,745 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 05:16:52,745 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 05:16:52,745 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 05:16:52,745 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 05:16:52,745 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 15 26) 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|)) [2020-11-07 05:16:52,746 INFO L262 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: false [2020-11-07 05:16:52,746 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 15 26) the Hoare annotation is: true [2020-11-07 05:16:52,746 INFO L262 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: false [2020-11-07 05:16:52,746 INFO L262 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) 0) [2020-11-07 05:16:52,746 INFO L262 CegarLoopResult]: At program point L19(lines 15 26) the Hoare annotation is: false [2020-11-07 05:16:52,746 INFO L262 CegarLoopResult]: At program point L18(lines 18 20) the Hoare annotation is: (and (= |main_#t~mem9| 0) (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) 0)) [2020-11-07 05:16:52,747 INFO L262 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) 0) [2020-11-07 05:16:52,747 INFO L262 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: false [2020-11-07 05:16:52,747 INFO L262 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-11-07 05:16:52,747 INFO L262 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: (and (= |main_#t~mem9| 0) (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) 0)) [2020-11-07 05:16:52,747 INFO L262 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-11-07 05:16:52,748 INFO L262 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) 0) [2020-11-07 05:16:52,748 INFO L262 CegarLoopResult]: At program point L16-3(line 16) the Hoare annotation is: (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) 0) [2020-11-07 05:16:52,748 INFO L269 CegarLoopResult]: At program point mainFINAL(lines 15 26) the Hoare annotation is: true [2020-11-07 05:16:52,748 INFO L262 CegarLoopResult]: At program point L16-4(line 16) the Hoare annotation is: (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) 0) [2020-11-07 05:16:52,748 INFO L262 CegarLoopResult]: At program point L16-5(line 16) the Hoare annotation is: (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) 0) [2020-11-07 05:16:52,748 INFO L262 CegarLoopResult]: At program point L16-6(line 16) the Hoare annotation is: false [2020-11-07 05:16:52,749 INFO L262 CegarLoopResult]: At program point L16-7(line 16) the Hoare annotation is: false [2020-11-07 05:16:52,749 INFO L262 CegarLoopResult]: At program point L16-8(line 16) the Hoare annotation is: false [2020-11-07 05:16:52,749 INFO L262 CegarLoopResult]: At program point L16-9(line 16) the Hoare annotation is: false [2020-11-07 05:16:52,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:16:52,767 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:16:52,768 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:16:52,768 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:16:52,768 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:16:52,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:16:52,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:16:52,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:16:52,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:16:52,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 05:16:52 BoogieIcfgContainer [2020-11-07 05:16:52,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 05:16:52,775 INFO L168 Benchmark]: Toolchain (without parser) took 3457.96 ms. Allocated memory was 157.3 MB in the beginning and 194.0 MB in the end (delta: 36.7 MB). Free memory was 134.2 MB in the beginning and 122.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 92.6 MB. Max. memory is 8.0 GB. [2020-11-07 05:16:52,776 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 157.3 MB. Free memory is still 130.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 05:16:52,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.00 ms. Allocated memory is still 157.3 MB. Free memory was 133.5 MB in the beginning and 124.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 05:16:52,778 INFO L168 Benchmark]: Boogie Preprocessor took 66.13 ms. Allocated memory is still 157.3 MB. Free memory was 124.3 MB in the beginning and 122.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 05:16:52,779 INFO L168 Benchmark]: RCFGBuilder took 613.72 ms. Allocated memory is still 157.3 MB. Free memory was 122.7 MB in the beginning and 104.6 MB in the end (delta: 18.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2020-11-07 05:16:52,781 INFO L168 Benchmark]: TraceAbstraction took 2532.13 ms. Allocated memory was 157.3 MB in the beginning and 194.0 MB in the end (delta: 36.7 MB). Free memory was 104.1 MB in the beginning and 122.0 MB in the end (delta: -17.9 MB). Peak memory consumption was 62.2 MB. Max. memory is 8.0 GB. [2020-11-07 05:16:52,785 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 157.3 MB. Free memory is still 130.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 230.00 ms. Allocated memory is still 157.3 MB. Free memory was 133.5 MB in the beginning and 124.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 66.13 ms. Allocated memory is still 157.3 MB. Free memory was 124.3 MB in the beginning and 122.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 613.72 ms. Allocated memory is still 157.3 MB. Free memory was 122.7 MB in the beginning and 104.6 MB in the end (delta: 18.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2532.13 ms. Allocated memory was 157.3 MB in the beginning and 194.0 MB in the end (delta: 36.7 MB). Free memory was 104.1 MB in the beginning and 122.0 MB in the end (delta: -17.9 MB). Peak memory consumption was 62.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * 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_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * 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: 15]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 10]: Procedure Contract for f [2020-11-07 05:16:52,795 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-07 05:16:52,795 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure f: unknown-#memory_int-unknown[pb][pb] == 0 - ProcedureContractResult [Line: 6]: Procedure Contract for g [2020-11-07 05:16:52,796 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:16:52,796 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:16:52,796 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:16:52,796 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:16:52,797 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:16:52,797 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:16:52,797 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:16:52,797 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:16:52,798 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:16:52,798 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-11-07 05:16:52,798 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:16:52,799 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-11-07 05:16:52,799 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:16:52,799 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:16:52,799 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-11-07 05:16:52,799 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived contract for procedure g: #memory_$Pointer$[ppa][ppa] == \old(#memory_$Pointer$)[ppb][ppb] && \old(#memory_$Pointer$)[ppb][ppb] == #memory_$Pointer$[ppa][ppa] - ProcedureContractResult [Line: 15]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 29 SDslu, 158 SDs, 0 SdLazy, 312 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred 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, 60 LocationsWithAnnotation, 60 PreInvPairs, 64 NumberOfFragments, 452 HoareAnnotationTreeSize, 60 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 60 FomulaSimplificationsInter, 348 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 12000 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...