./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test30-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test30-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3055aa5e8d0f7166c6199867c275abf60313262b8446d59ec5e54caabc9c66a5 ........................................................................................................................................................................................................................................................ 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 0.2.1-dev-b2eff8b [2021-10-29 00:03:44,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 00:03:44,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 00:03:44,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 00:03:44,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 00:03:44,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 00:03:44,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 00:03:44,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 00:03:44,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 00:03:44,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 00:03:44,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 00:03:44,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 00:03:44,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 00:03:44,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 00:03:44,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 00:03:44,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 00:03:44,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 00:03:44,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 00:03:44,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 00:03:44,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 00:03:44,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 00:03:44,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 00:03:44,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 00:03:44,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 00:03:44,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 00:03:44,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 00:03:44,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 00:03:44,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 00:03:44,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 00:03:44,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 00:03:44,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 00:03:44,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 00:03:44,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 00:03:44,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 00:03:44,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 00:03:44,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 00:03:44,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 00:03:44,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 00:03:44,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 00:03:44,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 00:03:44,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 00:03:44,215 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-29 00:03:44,262 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 00:03:44,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 00:03:44,263 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-29 00:03:44,270 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-29 00:03:44,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 00:03:44,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 00:03:44,272 INFO L138 SettingsManager]: * Use SBE=true [2021-10-29 00:03:44,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 00:03:44,272 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 00:03:44,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 00:03:44,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 00:03:44,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 00:03:44,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 00:03:44,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 00:03:44,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 00:03:44,276 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 00:03:44,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 00:03:44,276 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 00:03:44,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 00:03:44,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 00:03:44,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 00:03:44,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 00:03:44,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:03:44,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 00:03:44,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 00:03:44,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 00:03:44,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-29 00:03:44,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 00:03:44,280 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-29 00:03:44,281 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-29 00:03:44,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 00:03:44,282 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 00:03:44,282 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3055aa5e8d0f7166c6199867c275abf60313262b8446d59ec5e54caabc9c66a5 [2021-10-29 00:03:44,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 00:03:44,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 00:03:44,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 00:03:44,686 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 00:03:44,687 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 00:03:44,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-regression/test30-2.c [2021-10-29 00:03:44,778 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD/data/54ee059ad/89f8ce3cb78645dc8dbdb00c4b84031c/FLAG17abfd6c0 [2021-10-29 00:03:45,395 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 00:03:45,396 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/sv-benchmarks/c/ldv-regression/test30-2.c [2021-10-29 00:03:45,403 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD/data/54ee059ad/89f8ce3cb78645dc8dbdb00c4b84031c/FLAG17abfd6c0 [2021-10-29 00:03:45,777 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD/data/54ee059ad/89f8ce3cb78645dc8dbdb00c4b84031c [2021-10-29 00:03:45,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 00:03:45,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 00:03:45,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 00:03:45,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 00:03:45,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 00:03:45,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:03:45" (1/1) ... [2021-10-29 00:03:45,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c2e0a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:45, skipping insertion in model container [2021-10-29 00:03:45,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:03:45" (1/1) ... [2021-10-29 00:03:45,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 00:03:45,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 00:03:46,067 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/sv-benchmarks/c/ldv-regression/test30-2.c[560,573] [2021-10-29 00:03:46,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:03:46,081 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 00:03:46,099 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/sv-benchmarks/c/ldv-regression/test30-2.c[560,573] [2021-10-29 00:03:46,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:03:46,118 INFO L208 MainTranslator]: Completed translation [2021-10-29 00:03:46,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:46 WrapperNode [2021-10-29 00:03:46,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 00:03:46,121 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 00:03:46,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 00:03:46,122 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 00:03:46,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:46" (1/1) ... [2021-10-29 00:03:46,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:46" (1/1) ... [2021-10-29 00:03:46,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 00:03:46,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 00:03:46,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 00:03:46,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 00:03:46,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:46" (1/1) ... [2021-10-29 00:03:46,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:46" (1/1) ... [2021-10-29 00:03:46,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:46" (1/1) ... [2021-10-29 00:03:46,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:46" (1/1) ... [2021-10-29 00:03:46,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:46" (1/1) ... [2021-10-29 00:03:46,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:46" (1/1) ... [2021-10-29 00:03:46,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:46" (1/1) ... [2021-10-29 00:03:46,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 00:03:46,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 00:03:46,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 00:03:46,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 00:03:46,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:46" (1/1) ... [2021-10-29 00:03:46,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:03:46,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:46,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:46,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 00:03:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-29 00:03:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-29 00:03:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 00:03:46,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 00:03:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 00:03:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 00:03:46,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 00:03:46,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 00:03:46,615 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 00:03:46,616 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-29 00:03:46,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:46 BoogieIcfgContainer [2021-10-29 00:03:46,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 00:03:46,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 00:03:46,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 00:03:46,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 00:03:46,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:03:45" (1/3) ... [2021-10-29 00:03:46,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5859ea37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:03:46, skipping insertion in model container [2021-10-29 00:03:46,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:46" (2/3) ... [2021-10-29 00:03:46,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5859ea37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:03:46, skipping insertion in model container [2021-10-29 00:03:46,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:46" (3/3) ... [2021-10-29 00:03:46,642 INFO L111 eAbstractionObserver]: Analyzing ICFG test30-2.c [2021-10-29 00:03:46,648 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 00:03:46,661 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 00:03:46,735 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 00:03:46,743 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 00:03:46,744 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 00:03:46,764 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:46,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 00:03:46,771 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:46,772 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 00:03:46,773 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:46,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:46,782 INFO L85 PathProgramCache]: Analyzing trace with hash 889475945, now seen corresponding path program 1 times [2021-10-29 00:03:46,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:46,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055913041] [2021-10-29 00:03:46,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:46,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:47,023 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:47,183 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:47,186 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 00:03:47,189 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:03:47,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 00:03:47,197 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-29 00:03:47,201 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 00:03:47,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 12:03:47 BoogieIcfgContainer [2021-10-29 00:03:47,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 00:03:47,264 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 00:03:47,264 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 00:03:47,264 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 00:03:47,265 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:46" (3/4) ... [2021-10-29 00:03:47,268 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 00:03:47,348 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-29 00:03:47,348 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 00:03:47,351 INFO L168 Benchmark]: Toolchain (without parser) took 1566.71 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 84.6 MB in the beginning and 77.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 27.6 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:47,352 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 113.2 MB. Free memory is still 70.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:03:47,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.35 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 84.4 MB in the beginning and 111.0 MB in the end (delta: -26.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:47,358 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.99 ms. Allocated memory is still 136.3 MB. Free memory was 111.0 MB in the beginning and 109.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:47,358 INFO L168 Benchmark]: Boogie Preprocessor took 39.63 ms. Allocated memory is still 136.3 MB. Free memory was 109.3 MB in the beginning and 108.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:03:47,363 INFO L168 Benchmark]: RCFGBuilder took 404.97 ms. Allocated memory is still 136.3 MB. Free memory was 108.3 MB in the beginning and 97.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:47,364 INFO L168 Benchmark]: TraceAbstraction took 637.36 ms. Allocated memory is still 136.3 MB. Free memory was 97.3 MB in the beginning and 80.2 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:47,364 INFO L168 Benchmark]: Witness Printer took 84.91 ms. Allocated memory is still 136.3 MB. Free memory was 79.9 MB in the beginning and 78.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:47,374 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 113.2 MB. Free memory is still 70.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 331.35 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 84.4 MB in the beginning and 111.0 MB in the end (delta: -26.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.99 ms. Allocated memory is still 136.3 MB. Free memory was 111.0 MB in the beginning and 109.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.63 ms. Allocated memory is still 136.3 MB. Free memory was 109.3 MB in the beginning and 108.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 404.97 ms. Allocated memory is still 136.3 MB. Free memory was 108.3 MB in the beginning and 97.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 637.36 ms. Allocated memory is still 136.3 MB. Free memory was 97.3 MB in the beginning and 80.2 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 84.91 ms. Allocated memory is still 136.3 MB. Free memory was 79.9 MB in the beginning and 78.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 33]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5] int a = 1, b; [L7-L9] struct dummy { int *a, *b; } global = {&a, &b}; VAL [a={7:0}, b={6:0}, global={9:0}] [L23] struct dummy *pd = &global; [L18] \read(**pb) [L18] \read(**pb) [L13] EXPR \read(*pb) [L13] *pa = *pb [L27] EXPR \read(a) [L27] EXPR \read(b) VAL [a={7:0}, b={6:0}, global={9:0}] [L27] COND TRUE a != b [L33] reach_error() VAL [a={7:0}, b={6:0}, global={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2021-10-29 00:03:47,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef1fa768-05ee-43aa-a7a7-b66b406960c5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...