./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem102_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem102_label22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/bin/uautomizer-wIGwrQj20G --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 abde824a074698a7fe0829cf59e71eaa5b6959f3670c2931f0a1eb641b68c447 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:05:08,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:05:08,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:05:08,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:05:08,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:05:08,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:05:08,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:05:08,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:05:08,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:05:08,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:05:08,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:05:08,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:05:08,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:05:08,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:05:08,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:05:08,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:05:08,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:05:08,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:05:08,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:05:08,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:05:08,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:05:09,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:05:09,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:05:09,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:05:09,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:05:09,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:05:09,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:05:09,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:05:09,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:05:09,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:05:09,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:05:09,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:05:09,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:05:09,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:05:09,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:05:09,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:05:09,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:05:09,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:05:09,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:05:09,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:05:09,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:05:09,031 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 14:05:09,084 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:05:09,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:05:09,085 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:05:09,085 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:05:09,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:05:09,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:05:09,088 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:05:09,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:05:09,089 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 14:05:09,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:05:09,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 14:05:09,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:05:09,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:05:09,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:05:09,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:05:09,091 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 14:05:09,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:05:09,091 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:05:09,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:05:09,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:05:09,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:05:09,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:05:09,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:05:09,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:05:09,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:05:09,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:05:09,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:05:09,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:05:09,094 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:05:09,095 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 14:05:09,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:05:09,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 14:05:09,096 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_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abde824a074698a7fe0829cf59e71eaa5b6959f3670c2931f0a1eb641b68c447 [2021-11-23 14:05:09,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:05:09,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:05:09,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:05:09,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:05:09,448 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:05:09,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/eca-programs/Problem102_label22.c [2021-11-23 14:05:09,560 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/bin/uautomizer-wIGwrQj20G/data/077539049/28b39fa297834967860e1eda168bb5b3/FLAG24e1def47 [2021-11-23 14:05:13,530 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:05:13,531 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/sv-benchmarks/c/eca-programs/Problem102_label22.c [2021-11-23 14:05:13,812 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/bin/uautomizer-wIGwrQj20G/data/077539049/28b39fa297834967860e1eda168bb5b3/FLAG24e1def47 [2021-11-23 14:05:14,086 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/bin/uautomizer-wIGwrQj20G/data/077539049/28b39fa297834967860e1eda168bb5b3 [2021-11-23 14:05:14,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:05:14,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:05:14,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:05:14,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:05:14,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:05:14,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:05:14" (1/1) ... [2021-11-23 14:05:14,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b399b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:05:14, skipping insertion in model container [2021-11-23 14:05:14,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:05:14" (1/1) ... [2021-11-23 14:05:14,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:05:15,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:05:42,438 WARN L230 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_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/sv-benchmarks/c/eca-programs/Problem102_label22.c[5716440,5716453] [2021-11-23 14:05:42,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:05:42,568 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:05:56,071 WARN L230 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_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/sv-benchmarks/c/eca-programs/Problem102_label22.c[5716440,5716453] [2021-11-23 14:05:56,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:06:01,038 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:06:01,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:01 WrapperNode [2021-11-23 14:06:01,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:06:01,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:06:01,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:06:01,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:06:01,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:01" (1/1) ... [2021-11-23 14:06:02,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:01" (1/1) ... [2021-11-23 14:06:06,601 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184295 [2021-11-23 14:06:06,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:06:06,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:06:06,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:06:06,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:06:06,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:01" (1/1) ... [2021-11-23 14:06:06,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:01" (1/1) ... [2021-11-23 14:06:08,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:01" (1/1) ... [2021-11-23 14:06:08,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:01" (1/1) ... [2021-11-23 14:06:10,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:01" (1/1) ... [2021-11-23 14:06:10,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:01" (1/1) ... [2021-11-23 14:06:10,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:01" (1/1) ... [2021-11-23 14:06:11,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:06:11,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:06:11,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:06:11,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:06:11,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:01" (1/1) ... [2021-11-23 14:06:11,583 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:06:11,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:06:11,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:06:11,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75b239c1-1453-4b4f-b34a-16b9b0e9ebaa/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:06:11,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:06:11,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:06:11,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:06:11,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:06:11,932 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:06:11,934 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:07:19,310 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:07:19,423 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:07:19,423 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 14:07:19,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:19 BoogieIcfgContainer [2021-11-23 14:07:19,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:07:19,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:07:19,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:07:19,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:07:19,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:05:14" (1/3) ... [2021-11-23 14:07:19,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36959a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:19, skipping insertion in model container [2021-11-23 14:07:19,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:01" (2/3) ... [2021-11-23 14:07:19,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36959a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:19, skipping insertion in model container [2021-11-23 14:07:19,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:19" (3/3) ... [2021-11-23 14:07:19,455 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem102_label22.c [2021-11-23 14:07:19,460 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:07:19,460 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 14:07:19,565 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 14:07:19,573 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 [2021-11-23 14:07:19,573 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 14:07:19,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 23215 states, 23213 states have (on average 1.8828673588075646) internal successors, (43707), 23214 states have internal predecessors, (43707), 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) [2021-11-23 14:07:21,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17917 [2021-11-23 14:07:21,940 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:07:21,952 INFO L514 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, 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, 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, 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, 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, 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, 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, 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INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:07:21,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:21,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1175021032, now seen corresponding path program 1 times [2021-11-23 14:07:21,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:21,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527812841] [2021-11-23 14:07:22,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:22,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:26,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat