./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test29-1.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-regression/test29-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2aa6c4430411ceeb023b25a4c3a2c7228d94ed35 ..................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:59:07,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:59:07,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:59:07,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:59:07,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:59:07,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:59:08,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:59:08,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:59:08,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:59:08,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:59:08,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:59:08,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:59:08,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:59:08,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:59:08,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:59:08,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:59:08,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:59:08,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:59:08,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:59:08,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:59:08,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:59:08,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:59:08,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:59:08,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:59:08,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:59:08,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:59:08,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:59:08,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:59:08,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:59:08,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:59:08,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:59:08,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:59:08,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:59:08,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:59:08,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:59:08,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:59:08,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:59:08,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:59:08,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:59:08,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:59:08,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:59:08,059 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:59:08,081 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:59:08,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:59:08,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:59:08,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:59:08,083 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:59:08,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:59:08,084 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:59:08,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:59:08,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:59:08,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:59:08,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:59:08,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:59:08,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:59:08,087 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:59:08,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:59:08,087 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:59:08,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:59:08,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:59:08,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:59:08,088 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:59:08,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:59:08,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:59:08,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:59:08,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:59:08,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:59:08,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:59:08,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:59:08,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:59:08,090 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:59:08,090 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2aa6c4430411ceeb023b25a4c3a2c7228d94ed35 [2020-07-28 17:59:08,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:59:08,402 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:59:08,405 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:59:08,406 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:59:08,407 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:59:08,407 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test29-1.c [2020-07-28 17:59:08,473 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c14bf6c52/cc3631690fb5463ab19690c2d58ee126/FLAGbf9350dd5 [2020-07-28 17:59:08,811 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:59:08,812 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test29-1.c [2020-07-28 17:59:08,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c14bf6c52/cc3631690fb5463ab19690c2d58ee126/FLAGbf9350dd5 [2020-07-28 17:59:09,212 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c14bf6c52/cc3631690fb5463ab19690c2d58ee126 [2020-07-28 17:59:09,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:59:09,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:59:09,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:59:09,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:59:09,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:59:09,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:59:09" (1/1) ... [2020-07-28 17:59:09,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e8b784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:09, skipping insertion in model container [2020-07-28 17:59:09,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:59:09" (1/1) ... [2020-07-28 17:59:09,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:59:09,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:59:09,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:59:09,434 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:59:09,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:59:09,474 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:59:09,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:09 WrapperNode [2020-07-28 17:59:09,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:59:09,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:59:09,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:59:09,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:59:09,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:09" (1/1) ... [2020-07-28 17:59:09,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:09" (1/1) ... [2020-07-28 17:59:09,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:59:09,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:59:09,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:59:09,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:59:09,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:09" (1/1) ... [2020-07-28 17:59:09,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:09" (1/1) ... [2020-07-28 17:59:09,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:09" (1/1) ... [2020-07-28 17:59:09,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:09" (1/1) ... [2020-07-28 17:59:09,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:09" (1/1) ... [2020-07-28 17:59:09,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:09" (1/1) ... [2020-07-28 17:59:09,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:09" (1/1) ... [2020-07-28 17:59:09,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:59:09,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:59:09,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:59:09,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:59:09,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:59:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:59:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:59:09,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:59:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:59:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:59:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:59:10,247 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:59:10,248 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-28 17:59:10,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:59:10 BoogieIcfgContainer [2020-07-28 17:59:10,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:59:10,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:59:10,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:59:10,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:59:10,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:59:09" (1/3) ... [2020-07-28 17:59:10,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b1880e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:59:10, skipping insertion in model container [2020-07-28 17:59:10,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:09" (2/3) ... [2020-07-28 17:59:10,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b1880e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:59:10, skipping insertion in model container [2020-07-28 17:59:10,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:59:10" (3/3) ... [2020-07-28 17:59:10,262 INFO L109 eAbstractionObserver]: Analyzing ICFG test29-1.c [2020-07-28 17:59:10,270 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:59:10,276 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:59:10,288 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:59:10,309 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:59:10,310 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:59:10,310 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:59:10,310 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:59:10,310 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:59:10,311 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:59:10,311 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:59:10,311 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:59:10,327 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-07-28 17:59:10,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 17:59:10,334 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:59:10,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:59:10,336 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:59:10,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:59:10,343 INFO L82 PathProgramCache]: Analyzing trace with hash -594068692, now seen corresponding path program 1 times [2020-07-28 17:59:10,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:59:10,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485834195] [2020-07-28 17:59:10,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:59:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:59:10,621 INFO L280 TraceCheckUtils]: 0: Hoare triple {16#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {16#true} is VALID [2020-07-28 17:59:10,622 INFO L280 TraceCheckUtils]: 1: Hoare triple {16#true} havoc main_#res;havoc main_#t~nondet0, main_#t~ite1.base, main_#t~ite1.offset, main_#t~nondet2, main_#t~mem3, main_#t~short4, main_~#d1~0.base, main_~#d1~0.offset, main_~#d2~0.base, main_~#d2~0.offset, main_~n~0, main_~pd~0.base, main_~pd~0.offset;call main_~#d1~0.base, main_~#d1~0.offset := #Ultimate.allocOnStack(4);call main_~#d2~0.base, main_~#d2~0.offset := #Ultimate.allocOnStack(4);assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; {16#true} is VALID [2020-07-28 17:59:10,624 INFO L280 TraceCheckUtils]: 2: Hoare triple {16#true} assume 0 != main_~n~0;main_#t~ite1.base, main_#t~ite1.offset := main_~#d1~0.base, main_~#d1~0.offset; {18#(and (= |ULTIMATE.start_main_~#d1~0.base| |ULTIMATE.start_main_#t~ite1.base|) (= |ULTIMATE.start_main_#t~ite1.offset| |ULTIMATE.start_main_~#d1~0.offset|))} is VALID [2020-07-28 17:59:10,626 INFO L280 TraceCheckUtils]: 3: Hoare triple {18#(and (= |ULTIMATE.start_main_~#d1~0.base| |ULTIMATE.start_main_#t~ite1.base|) (= |ULTIMATE.start_main_#t~ite1.offset| |ULTIMATE.start_main_~#d1~0.offset|))} main_~pd~0.base, main_~pd~0.offset := main_#t~ite1.base, main_#t~ite1.offset;havoc main_#t~ite1.base, main_#t~ite1.offset;assume -2147483648 <= main_#t~nondet2 && main_#t~nondet2 <= 2147483647;call write~int(main_#t~nondet2, main_~#d1~0.base, main_~#d1~0.offset, 4);havoc main_#t~nondet2; {19#(and (= |ULTIMATE.start_main_~#d1~0.base| ULTIMATE.start_main_~pd~0.base) (= ULTIMATE.start_main_~pd~0.offset |ULTIMATE.start_main_~#d1~0.offset|))} is VALID [2020-07-28 17:59:10,628 INFO L280 TraceCheckUtils]: 4: Hoare triple {19#(and (= |ULTIMATE.start_main_~#d1~0.base| ULTIMATE.start_main_~pd~0.base) (= ULTIMATE.start_main_~pd~0.offset |ULTIMATE.start_main_~#d1~0.offset|))} assume main_~pd~0.base == main_~#d1~0.base && main_~pd~0.offset == main_~#d1~0.offset;call write~int(0, main_~pd~0.base, main_~pd~0.offset, 4); {20#(= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#d1~0.base|) |ULTIMATE.start_main_~#d1~0.offset|))} is VALID [2020-07-28 17:59:10,629 INFO L280 TraceCheckUtils]: 5: Hoare triple {20#(= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#d1~0.base|) |ULTIMATE.start_main_~#d1~0.offset|))} main_#t~short4 := main_~pd~0.base == main_~#d2~0.base && main_~pd~0.offset == main_~#d2~0.offset; {20#(= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#d1~0.base|) |ULTIMATE.start_main_~#d1~0.offset|))} is VALID [2020-07-28 17:59:10,631 INFO L280 TraceCheckUtils]: 6: Hoare triple {20#(= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#d1~0.base|) |ULTIMATE.start_main_~#d1~0.offset|))} assume main_#t~short4;call main_#t~mem3 := read~int(main_~#d1~0.base, main_~#d1~0.offset, 4);main_#t~short4 := 0 != main_#t~mem3; {21#(not |ULTIMATE.start_main_#t~short4|)} is VALID [2020-07-28 17:59:10,632 INFO L280 TraceCheckUtils]: 7: Hoare triple {21#(not |ULTIMATE.start_main_#t~short4|)} assume main_#t~short4;havoc main_#t~short4;havoc main_#t~mem3; {17#false} is VALID [2020-07-28 17:59:10,633 INFO L280 TraceCheckUtils]: 8: Hoare triple {17#false} assume !false; {17#false} is VALID [2020-07-28 17:59:10,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:59:10,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485834195] [2020-07-28 17:59:10,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:59:10,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-28 17:59:10,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426255093] [2020-07-28 17:59:10,647 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-07-28 17:59:10,649 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:59:10,655 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 17:59:10,678 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:59:10,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 17:59:10,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:59:10,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 17:59:10,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-28 17:59:10,692 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 6 states. [2020-07-28 17:59:10,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:59:10,925 INFO L93 Difference]: Finished difference Result 27 states and 35 transitions. [2020-07-28 17:59:10,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 17:59:10,925 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-07-28 17:59:10,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:59:10,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 17:59:10,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 35 transitions. [2020-07-28 17:59:10,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 17:59:10,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 35 transitions. [2020-07-28 17:59:10,938 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 35 transitions. [2020-07-28 17:59:10,988 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:59:10,998 INFO L225 Difference]: With dead ends: 27 [2020-07-28 17:59:10,999 INFO L226 Difference]: Without dead ends: 10 [2020-07-28 17:59:11,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-28 17:59:11,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-07-28 17:59:11,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-07-28 17:59:11,037 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:59:11,038 INFO L82 GeneralOperation]: Start isEquivalent. First operand 10 states. Second operand 10 states. [2020-07-28 17:59:11,039 INFO L74 IsIncluded]: Start isIncluded. First operand 10 states. Second operand 10 states. [2020-07-28 17:59:11,039 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 10 states. [2020-07-28 17:59:11,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:59:11,042 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-07-28 17:59:11,042 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-07-28 17:59:11,043 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:59:11,043 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:59:11,043 INFO L74 IsIncluded]: Start isIncluded. First operand 10 states. Second operand 10 states. [2020-07-28 17:59:11,044 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 10 states. [2020-07-28 17:59:11,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:59:11,046 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-07-28 17:59:11,046 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-07-28 17:59:11,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:59:11,047 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:59:11,047 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:59:11,047 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:59:11,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:59:11,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2020-07-28 17:59:11,051 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2020-07-28 17:59:11,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:59:11,052 INFO L479 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2020-07-28 17:59:11,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 17:59:11,053 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-07-28 17:59:11,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 17:59:11,053 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:59:11,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:59:11,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:59:11,054 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:59:11,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:59:11,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1182785712, now seen corresponding path program 1 times [2020-07-28 17:59:11,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:59:11,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901544128] [2020-07-28 17:59:11,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:59:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:59:11,085 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:59:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:59:11,104 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:59:11,129 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 17:59:11,130 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:59:11,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:59:11,171 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:59:11,172 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:59:11,172 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-28 17:59:11,172 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-28 17:59:11,173 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2020-07-28 17:59:11,173 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-28 17:59:11,173 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-28 17:59:11,173 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-28 17:59:11,174 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 17:59:11,174 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 17:59:11,174 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2020-07-28 17:59:11,174 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2020-07-28 17:59:11,175 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-28 17:59:11,175 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-28 17:59:11,175 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-28 17:59:11,175 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:59:11,176 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:59:11,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:59:11 BoogieIcfgContainer [2020-07-28 17:59:11,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:59:11,179 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:59:11,179 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:59:11,180 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:59:11,180 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:59:10" (3/4) ... [2020-07-28 17:59:11,183 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 17:59:11,235 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:59:11,235 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:59:11,239 INFO L168 Benchmark]: Toolchain (without parser) took 2021.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 952.2 MB in the beginning and 1.0 GB in the end (delta: -82.3 MB). Peak memory consumption was 61.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:11,240 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:59:11,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.20 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:11,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 120.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -192.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:11,242 INFO L168 Benchmark]: Boogie Preprocessor took 56.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:59:11,243 INFO L168 Benchmark]: RCFGBuilder took 599.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:11,244 INFO L168 Benchmark]: TraceAbstraction took 925.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.6 MB). Peak memory consumption was 67.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:11,244 INFO L168 Benchmark]: Witness Printer took 56.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:59:11,248 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 256.20 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 120.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -192.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 599.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 925.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.6 MB). Peak memory consumption was 67.6 MB. Max. memory is 11.5 GB. * Witness Printer took 56.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] union dummy d1, d2; [L14] int n = __VERIFIER_nondet_int(); [L15] EXPR n ? &d1 : &d2 [L15] union dummy *pd = n ? &d1 : &d2; [L16] d1.a = __VERIFIER_nondet_int() [L17] COND FALSE !(pd == &d1) [L20] pd->b = 0 [L22] pd == &d2 && d1.a != 0 [L22] EXPR d1.a [L22] pd == &d2 && d1.a != 0 [L22] COND TRUE pd == &d2 && d1.a != 0 [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 6 SDslu, 28 SDs, 0 SdLazy, 33 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 264 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 incorrect! Received shutdown request...