./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/Dubois-020.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_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/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_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/Dubois-020.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/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_cca0d569-ea4a-4833-8772-212d65bef603/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 93d5a5d399a9dd6cd6b636e570174f8a08707ae74dd799252569e666733011b7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 12:30:31,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:30:31,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:30:31,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:30:31,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:30:31,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:30:31,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:30:31,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:30:31,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:30:31,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:30:31,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:30:31,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:30:31,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:30:31,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:30:31,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:30:31,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:30:31,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:30:31,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:30:31,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:30:31,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:30:31,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:30:31,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:30:31,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:30:31,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:30:31,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:30:31,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:30:31,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:30:31,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:30:31,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:30:31,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:30:31,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:30:31,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:30:31,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:30:31,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:30:31,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:30:31,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:30:31,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:30:31,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:30:31,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:30:31,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:30:31,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:30:31,270 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 12:30:31,301 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:30:31,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:30:31,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:30:31,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:30:31,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:30:31,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:30:31,305 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:30:31,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:30:31,306 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 12:30:31,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 12:30:31,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 12:30:31,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:30:31,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 12:30:31,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 12:30:31,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 12:30:31,308 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 12:30:31,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:30:31,308 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:30:31,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 12:30:31,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:30:31,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:30:31,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 12:30:31,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:30:31,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:30:31,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 12:30:31,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 12:30:31,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 12:30:31,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 12:30:31,312 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 12:30:31,312 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 12:30:31,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 12:30:31,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:30:31,313 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_cca0d569-ea4a-4833-8772-212d65bef603/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93d5a5d399a9dd6cd6b636e570174f8a08707ae74dd799252569e666733011b7 [2021-11-23 12:30:31,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:30:31,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:30:31,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:30:31,669 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:30:31,670 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:30:31,671 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/xcsp/Dubois-020.c [2021-11-23 12:30:31,771 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/data/1f49bde92/fee1e684b8654279a689111048f60870/FLAGdd18d90c6 [2021-11-23 12:30:32,536 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:30:32,537 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/sv-benchmarks/c/xcsp/Dubois-020.c [2021-11-23 12:30:32,561 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/data/1f49bde92/fee1e684b8654279a689111048f60870/FLAGdd18d90c6 [2021-11-23 12:30:32,796 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/data/1f49bde92/fee1e684b8654279a689111048f60870 [2021-11-23 12:30:32,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:30:32,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:30:32,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:30:32,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:30:32,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:30:32,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:30:32" (1/1) ... [2021-11-23 12:30:32,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd6a985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:32, skipping insertion in model container [2021-11-23 12:30:32,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:30:32" (1/1) ... [2021-11-23 12:30:32,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:30:32,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:30:33,315 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_cca0d569-ea4a-4833-8772-212d65bef603/sv-benchmarks/c/xcsp/Dubois-020.c[14400,14413] [2021-11-23 12:30:33,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:30:33,357 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:30:33,507 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_cca0d569-ea4a-4833-8772-212d65bef603/sv-benchmarks/c/xcsp/Dubois-020.c[14400,14413] [2021-11-23 12:30:33,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:30:33,541 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:30:33,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:33 WrapperNode [2021-11-23 12:30:33,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:30:33,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:30:33,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:30:33,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:30:33,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:33" (1/1) ... [2021-11-23 12:30:33,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:33" (1/1) ... [2021-11-23 12:30:33,727 INFO L137 Inliner]: procedures = 13, calls = 167, calls flagged for inlining = 162, calls inlined = 162, statements flattened = 897 [2021-11-23 12:30:33,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:30:33,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:30:33,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:30:33,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:30:33,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:33" (1/1) ... [2021-11-23 12:30:33,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:33" (1/1) ... [2021-11-23 12:30:33,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:33" (1/1) ... [2021-11-23 12:30:33,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:33" (1/1) ... [2021-11-23 12:30:33,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:33" (1/1) ... [2021-11-23 12:30:33,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:33" (1/1) ... [2021-11-23 12:30:33,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:33" (1/1) ... [2021-11-23 12:30:33,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:30:33,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:30:33,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:30:33,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:30:33,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:33" (1/1) ... [2021-11-23 12:30:33,912 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:30:33,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:30:34,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 12:30:34,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 12:30:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 12:30:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:30:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:30:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 12:30:34,205 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:30:34,208 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:30:35,175 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:30:35,189 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:30:35,189 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 12:30:35,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:30:35 BoogieIcfgContainer [2021-11-23 12:30:35,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:30:35,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 12:30:35,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 12:30:35,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 12:30:35,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:30:32" (1/3) ... [2021-11-23 12:30:35,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648d7f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:30:35, skipping insertion in model container [2021-11-23 12:30:35,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:33" (2/3) ... [2021-11-23 12:30:35,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648d7f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:30:35, skipping insertion in model container [2021-11-23 12:30:35,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:30:35" (3/3) ... [2021-11-23 12:30:35,203 INFO L111 eAbstractionObserver]: Analyzing ICFG Dubois-020.c [2021-11-23 12:30:35,210 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 12:30:35,211 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 12:30:35,291 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 12:30:35,302 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 12:30:35,303 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 12:30:35,377 INFO L276 IsEmpty]: Start isEmpty. Operand has 327 states, 325 states have (on average 1.4953846153846153) internal successors, (486), 326 states have internal predecessors, (486), 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 12:30:35,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-11-23 12:30:35,419 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:30:35,420 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:30:35,421 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:30:35,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:30:35,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1842972248, now seen corresponding path program 1 times [2021-11-23 12:30:35,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:30:35,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863949675] [2021-11-23 12:30:35,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:30:35,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:30:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:30:35,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:30:35,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:30:35,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863949675] [2021-11-23 12:30:35,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863949675] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:30:35,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:30:35,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:30:35,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052782872] [2021-11-23 12:30:35,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:30:35,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 12:30:35,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:30:35,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 12:30:35,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 12:30:35,802 INFO L87 Difference]: Start difference. First operand has 327 states, 325 states have (on average 1.4953846153846153) internal successors, (486), 326 states have internal predecessors, (486), 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) Second operand has 2 states, 2 states have (on average 161.5) internal successors, (323), 2 states have internal predecessors, (323), 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 12:30:35,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:30:35,856 INFO L93 Difference]: Finished difference Result 648 states and 966 transitions. [2021-11-23 12:30:35,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 12:30:35,859 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 161.5) internal successors, (323), 2 states have internal predecessors, (323), 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) Word has length 323 [2021-11-23 12:30:35,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:30:35,875 INFO L225 Difference]: With dead ends: 648 [2021-11-23 12:30:35,875 INFO L226 Difference]: Without dead ends: 324 [2021-11-23 12:30:35,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 12:30:35,886 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:30:35,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:30:35,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-11-23 12:30:35,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2021-11-23 12:30:35,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 323 states have (on average 1.0) internal successors, (323), 323 states have internal predecessors, (323), 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 12:30:35,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 323 transitions. [2021-11-23 12:30:35,956 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 323 transitions. Word has length 323 [2021-11-23 12:30:35,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:30:35,957 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 323 transitions. [2021-11-23 12:30:35,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 161.5) internal successors, (323), 2 states have internal predecessors, (323), 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 12:30:35,958 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 323 transitions. [2021-11-23 12:30:35,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-11-23 12:30:35,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:30:35,968 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:30:35,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 12:30:35,968 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:30:35,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:30:35,970 INFO L85 PathProgramCache]: Analyzing trace with hash -2014303808, now seen corresponding path program 1 times [2021-11-23 12:30:35,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:30:35,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227107282] [2021-11-23 12:30:35,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:30:35,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:30:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:30:36,716 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:30:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:30:37,513 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:30:37,513 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 12:30:37,516 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 12:30:37,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 12:30:37,524 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 12:30:37,532 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 12:30:37,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:30:37 BoogieIcfgContainer [2021-11-23 12:30:37,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 12:30:37,807 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 12:30:37,807 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 12:30:37,807 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 12:30:37,808 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:30:35" (3/4) ... [2021-11-23 12:30:37,812 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 12:30:37,812 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 12:30:37,813 INFO L158 Benchmark]: Toolchain (without parser) took 5011.97ms. Allocated memory was 86.0MB in the beginning and 144.7MB in the end (delta: 58.7MB). Free memory was 50.7MB in the beginning and 64.9MB in the end (delta: -14.3MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2021-11-23 12:30:37,814 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 86.0MB. Free memory was 58.1MB in the beginning and 58.1MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:30:37,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 739.27ms. Allocated memory was 86.0MB in the beginning and 115.3MB in the end (delta: 29.4MB). Free memory was 50.5MB in the beginning and 75.1MB in the end (delta: -24.6MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2021-11-23 12:30:37,816 INFO L158 Benchmark]: Boogie Procedure Inliner took 184.69ms. Allocated memory is still 115.3MB. Free memory was 75.1MB in the beginning and 67.5MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 12:30:37,817 INFO L158 Benchmark]: Boogie Preprocessor took 161.10ms. Allocated memory is still 115.3MB. Free memory was 67.5MB in the beginning and 62.2MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 12:30:37,822 INFO L158 Benchmark]: RCFGBuilder took 1292.31ms. Allocated memory is still 115.3MB. Free memory was 62.2MB in the beginning and 57.8MB in the end (delta: 4.4MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2021-11-23 12:30:37,824 INFO L158 Benchmark]: TraceAbstraction took 2611.39ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 57.3MB in the beginning and 65.9MB in the end (delta: -8.6MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2021-11-23 12:30:37,824 INFO L158 Benchmark]: Witness Printer took 5.34ms. Allocated memory is still 144.7MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:30:37,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 86.0MB. Free memory was 58.1MB in the beginning and 58.1MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 739.27ms. Allocated memory was 86.0MB in the beginning and 115.3MB in the end (delta: 29.4MB). Free memory was 50.5MB in the beginning and 75.1MB in the end (delta: -24.6MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 184.69ms. Allocated memory is still 115.3MB. Free memory was 75.1MB in the beginning and 67.5MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 161.10ms. Allocated memory is still 115.3MB. Free memory was 67.5MB in the beginning and 62.2MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1292.31ms. Allocated memory is still 115.3MB. Free memory was 62.2MB in the beginning and 57.8MB in the end (delta: 4.4MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2611.39ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 57.3MB in the beginning and 65.9MB in the end (delta: -8.6MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * Witness Printer took 5.34ms. Allocated memory is still 144.7MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 426]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 422. Possible FailurePath: [L22] int cond0; [L23] int dummy = 0; [L24] int N; [L25] int var0; [L26] var0 = __VERIFIER_nondet_int() [L27] CALL assume(var0 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L27] RET assume(var0 >= 0) [L28] CALL assume(var0 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L28] RET assume(var0 <= 1) [L29] int var1; [L30] var1 = __VERIFIER_nondet_int() [L31] CALL assume(var1 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L31] RET assume(var1 >= 0) [L32] CALL assume(var1 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L32] RET assume(var1 <= 1) [L33] int var2; [L34] var2 = __VERIFIER_nondet_int() [L35] CALL assume(var2 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L35] RET assume(var2 >= 0) [L36] CALL assume(var2 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L36] RET assume(var2 <= 1) [L37] int var3; [L38] var3 = __VERIFIER_nondet_int() [L39] CALL assume(var3 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L39] RET assume(var3 >= 0) [L40] CALL assume(var3 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume(var3 <= 1) [L41] int var4; [L42] var4 = __VERIFIER_nondet_int() [L43] CALL assume(var4 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L43] RET assume(var4 >= 0) [L44] CALL assume(var4 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L44] RET assume(var4 <= 1) [L45] int var5; [L46] var5 = __VERIFIER_nondet_int() [L47] CALL assume(var5 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L47] RET assume(var5 >= 0) [L48] CALL assume(var5 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L48] RET assume(var5 <= 1) [L49] int var6; [L50] var6 = __VERIFIER_nondet_int() [L51] CALL assume(var6 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L51] RET assume(var6 >= 0) [L52] CALL assume(var6 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L52] RET assume(var6 <= 1) [L53] int var7; [L54] var7 = __VERIFIER_nondet_int() [L55] CALL assume(var7 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L55] RET assume(var7 >= 0) [L56] CALL assume(var7 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L56] RET assume(var7 <= 1) [L57] int var8; [L58] var8 = __VERIFIER_nondet_int() [L59] CALL assume(var8 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L59] RET assume(var8 >= 0) [L60] CALL assume(var8 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L60] RET assume(var8 <= 1) [L61] int var9; [L62] var9 = __VERIFIER_nondet_int() [L63] CALL assume(var9 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L63] RET assume(var9 >= 0) [L64] CALL assume(var9 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L64] RET assume(var9 <= 1) [L65] int var10; [L66] var10 = __VERIFIER_nondet_int() [L67] CALL assume(var10 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L67] RET assume(var10 >= 0) [L68] CALL assume(var10 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L68] RET assume(var10 <= 1) [L69] int var11; [L70] var11 = __VERIFIER_nondet_int() [L71] CALL assume(var11 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L71] RET assume(var11 >= 0) [L72] CALL assume(var11 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L72] RET assume(var11 <= 1) [L73] int var12; [L74] var12 = __VERIFIER_nondet_int() [L75] CALL assume(var12 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L75] RET assume(var12 >= 0) [L76] CALL assume(var12 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L76] RET assume(var12 <= 1) [L77] int var13; [L78] var13 = __VERIFIER_nondet_int() [L79] CALL assume(var13 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L79] RET assume(var13 >= 0) [L80] CALL assume(var13 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L80] RET assume(var13 <= 1) [L81] int var14; [L82] var14 = __VERIFIER_nondet_int() [L83] CALL assume(var14 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L83] RET assume(var14 >= 0) [L84] CALL assume(var14 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L84] RET assume(var14 <= 1) [L85] int var15; [L86] var15 = __VERIFIER_nondet_int() [L87] CALL assume(var15 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L87] RET assume(var15 >= 0) [L88] CALL assume(var15 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L88] RET assume(var15 <= 1) [L89] int var16; [L90] var16 = __VERIFIER_nondet_int() [L91] CALL assume(var16 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume(var16 >= 0) [L92] CALL assume(var16 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L92] RET assume(var16 <= 1) [L93] int var17; [L94] var17 = __VERIFIER_nondet_int() [L95] CALL assume(var17 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L95] RET assume(var17 >= 0) [L96] CALL assume(var17 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L96] RET assume(var17 <= 1) [L97] int var18; [L98] var18 = __VERIFIER_nondet_int() [L99] CALL assume(var18 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L99] RET assume(var18 >= 0) [L100] CALL assume(var18 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L100] RET assume(var18 <= 1) [L101] int var19; [L102] var19 = __VERIFIER_nondet_int() [L103] CALL assume(var19 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L103] RET assume(var19 >= 0) [L104] CALL assume(var19 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L104] RET assume(var19 <= 1) [L105] int var20; [L106] var20 = __VERIFIER_nondet_int() [L107] CALL assume(var20 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L107] RET assume(var20 >= 0) [L108] CALL assume(var20 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L108] RET assume(var20 <= 1) [L109] int var21; [L110] var21 = __VERIFIER_nondet_int() [L111] CALL assume(var21 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L111] RET assume(var21 >= 0) [L112] CALL assume(var21 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L112] RET assume(var21 <= 1) [L113] int var22; [L114] var22 = __VERIFIER_nondet_int() [L115] CALL assume(var22 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L115] RET assume(var22 >= 0) [L116] CALL assume(var22 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L116] RET assume(var22 <= 1) [L117] int var23; [L118] var23 = __VERIFIER_nondet_int() [L119] CALL assume(var23 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L119] RET assume(var23 >= 0) [L120] CALL assume(var23 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L120] RET assume(var23 <= 1) [L121] int var24; [L122] var24 = __VERIFIER_nondet_int() [L123] CALL assume(var24 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L123] RET assume(var24 >= 0) [L124] CALL assume(var24 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L124] RET assume(var24 <= 1) [L125] int var25; [L126] var25 = __VERIFIER_nondet_int() [L127] CALL assume(var25 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L127] RET assume(var25 >= 0) [L128] CALL assume(var25 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L128] RET assume(var25 <= 1) [L129] int var26; [L130] var26 = __VERIFIER_nondet_int() [L131] CALL assume(var26 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L131] RET assume(var26 >= 0) [L132] CALL assume(var26 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L132] RET assume(var26 <= 1) [L133] int var27; [L134] var27 = __VERIFIER_nondet_int() [L135] CALL assume(var27 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L135] RET assume(var27 >= 0) [L136] CALL assume(var27 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L136] RET assume(var27 <= 1) [L137] int var28; [L138] var28 = __VERIFIER_nondet_int() [L139] CALL assume(var28 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L139] RET assume(var28 >= 0) [L140] CALL assume(var28 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L140] RET assume(var28 <= 1) [L141] int var29; [L142] var29 = __VERIFIER_nondet_int() [L143] CALL assume(var29 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L143] RET assume(var29 >= 0) [L144] CALL assume(var29 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L144] RET assume(var29 <= 1) [L145] int var30; [L146] var30 = __VERIFIER_nondet_int() [L147] CALL assume(var30 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L147] RET assume(var30 >= 0) [L148] CALL assume(var30 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L148] RET assume(var30 <= 1) [L149] int var31; [L150] var31 = __VERIFIER_nondet_int() [L151] CALL assume(var31 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L151] RET assume(var31 >= 0) [L152] CALL assume(var31 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L152] RET assume(var31 <= 1) [L153] int var32; [L154] var32 = __VERIFIER_nondet_int() [L155] CALL assume(var32 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L155] RET assume(var32 >= 0) [L156] CALL assume(var32 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L156] RET assume(var32 <= 1) [L157] int var33; [L158] var33 = __VERIFIER_nondet_int() [L159] CALL assume(var33 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L159] RET assume(var33 >= 0) [L160] CALL assume(var33 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L160] RET assume(var33 <= 1) [L161] int var34; [L162] var34 = __VERIFIER_nondet_int() [L163] CALL assume(var34 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L163] RET assume(var34 >= 0) [L164] CALL assume(var34 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L164] RET assume(var34 <= 1) [L165] int var35; [L166] var35 = __VERIFIER_nondet_int() [L167] CALL assume(var35 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L167] RET assume(var35 >= 0) [L168] CALL assume(var35 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L168] RET assume(var35 <= 1) [L169] int var36; [L170] var36 = __VERIFIER_nondet_int() [L171] CALL assume(var36 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L171] RET assume(var36 >= 0) [L172] CALL assume(var36 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L172] RET assume(var36 <= 1) [L173] int var37; [L174] var37 = __VERIFIER_nondet_int() [L175] CALL assume(var37 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L175] RET assume(var37 >= 0) [L176] CALL assume(var37 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L176] RET assume(var37 <= 1) [L177] int var38; [L178] var38 = __VERIFIER_nondet_int() [L179] CALL assume(var38 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L179] RET assume(var38 >= 0) [L180] CALL assume(var38 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L180] RET assume(var38 <= 1) [L181] int var39; [L182] var39 = __VERIFIER_nondet_int() [L183] CALL assume(var39 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L183] RET assume(var39 >= 0) [L184] CALL assume(var39 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L184] RET assume(var39 <= 1) [L185] int var40; [L186] var40 = __VERIFIER_nondet_int() [L187] CALL assume(var40 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L187] RET assume(var40 >= 0) [L188] CALL assume(var40 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L188] RET assume(var40 <= 1) [L189] int var41; [L190] var41 = __VERIFIER_nondet_int() [L191] CALL assume(var41 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L191] RET assume(var41 >= 0) [L192] CALL assume(var41 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L192] RET assume(var41 <= 1) [L193] int var42; [L194] var42 = __VERIFIER_nondet_int() [L195] CALL assume(var42 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L195] RET assume(var42 >= 0) [L196] CALL assume(var42 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L196] RET assume(var42 <= 1) [L197] int var43; [L198] var43 = __VERIFIER_nondet_int() [L199] CALL assume(var43 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L199] RET assume(var43 >= 0) [L200] CALL assume(var43 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L200] RET assume(var43 <= 1) [L201] int var44; [L202] var44 = __VERIFIER_nondet_int() [L203] CALL assume(var44 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L203] RET assume(var44 >= 0) [L204] CALL assume(var44 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L204] RET assume(var44 <= 1) [L205] int var45; [L206] var45 = __VERIFIER_nondet_int() [L207] CALL assume(var45 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L207] RET assume(var45 >= 0) [L208] CALL assume(var45 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L208] RET assume(var45 <= 1) [L209] int var46; [L210] var46 = __VERIFIER_nondet_int() [L211] CALL assume(var46 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L211] RET assume(var46 >= 0) [L212] CALL assume(var46 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L212] RET assume(var46 <= 1) [L213] int var47; [L214] var47 = __VERIFIER_nondet_int() [L215] CALL assume(var47 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L215] RET assume(var47 >= 0) [L216] CALL assume(var47 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L216] RET assume(var47 <= 1) [L217] int var48; [L218] var48 = __VERIFIER_nondet_int() [L219] CALL assume(var48 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L219] RET assume(var48 >= 0) [L220] CALL assume(var48 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L220] RET assume(var48 <= 1) [L221] int var49; [L222] var49 = __VERIFIER_nondet_int() [L223] CALL assume(var49 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L223] RET assume(var49 >= 0) [L224] CALL assume(var49 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L224] RET assume(var49 <= 1) [L225] int var50; [L226] var50 = __VERIFIER_nondet_int() [L227] CALL assume(var50 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L227] RET assume(var50 >= 0) [L228] CALL assume(var50 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L228] RET assume(var50 <= 1) [L229] int var51; [L230] var51 = __VERIFIER_nondet_int() [L231] CALL assume(var51 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L231] RET assume(var51 >= 0) [L232] CALL assume(var51 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L232] RET assume(var51 <= 1) [L233] int var52; [L234] var52 = __VERIFIER_nondet_int() [L235] CALL assume(var52 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L235] RET assume(var52 >= 0) [L236] CALL assume(var52 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L236] RET assume(var52 <= 1) [L237] int var53; [L238] var53 = __VERIFIER_nondet_int() [L239] CALL assume(var53 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L239] RET assume(var53 >= 0) [L240] CALL assume(var53 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L240] RET assume(var53 <= 1) [L241] int var54; [L242] var54 = __VERIFIER_nondet_int() [L243] CALL assume(var54 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L243] RET assume(var54 >= 0) [L244] CALL assume(var54 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L244] RET assume(var54 <= 1) [L245] int var55; [L246] var55 = __VERIFIER_nondet_int() [L247] CALL assume(var55 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L247] RET assume(var55 >= 0) [L248] CALL assume(var55 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L248] RET assume(var55 <= 1) [L249] int var56; [L250] var56 = __VERIFIER_nondet_int() [L251] CALL assume(var56 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L251] RET assume(var56 >= 0) [L252] CALL assume(var56 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L252] RET assume(var56 <= 1) [L253] int var57; [L254] var57 = __VERIFIER_nondet_int() [L255] CALL assume(var57 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L255] RET assume(var57 >= 0) [L256] CALL assume(var57 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L256] RET assume(var57 <= 1) [L257] int var58; [L258] var58 = __VERIFIER_nondet_int() [L259] CALL assume(var58 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L259] RET assume(var58 >= 0) [L260] CALL assume(var58 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L260] RET assume(var58 <= 1) [L261] int var59; [L262] var59 = __VERIFIER_nondet_int() [L263] CALL assume(var59 >= 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L263] RET assume(var59 >= 0) [L264] CALL assume(var59 <= 1) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L264] RET assume(var59 <= 1) [L265] int myvar0 = 1; [L266-L269] CALL assume((var38 == 0 & var39 == 0 & var0 == 1) | (var38 == 0 & var39 == 1 & var0 == 0) | (var38 == 1 & var39 == 0 & var0 == 0) | (var38 == 1 & var39 == 1 & var0 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=66, cond=66] [L266-L269] RET assume((var38 == 0 & var39 == 0 & var0 == 1) | (var38 == 0 & var39 == 1 & var0 == 0) | (var38 == 1 & var39 == 0 & var0 == 0) | (var38 == 1 & var39 == 1 & var0 == 1) | 0) [L270-L273] CALL assume((var1 == 0 & var41 == 0 & var2 == 1) | (var1 == 0 & var41 == 1 & var2 == 0) | (var1 == 1 & var41 == 0 & var2 == 0) | (var1 == 1 & var41 == 1 & var2 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=81, cond=81] [L270-L273] RET assume((var1 == 0 & var41 == 0 & var2 == 1) | (var1 == 0 & var41 == 1 & var2 == 0) | (var1 == 1 & var41 == 0 & var2 == 0) | (var1 == 1 & var41 == 1 & var2 == 1) | 0) [L274-L277] CALL assume((var2 == 0 & var42 == 0 & var3 == 1) | (var2 == 0 & var42 == 1 & var3 == 0) | (var2 == 1 & var42 == 0 & var3 == 0) | (var2 == 1 & var42 == 1 & var3 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=67, cond=67] [L274-L277] RET assume((var2 == 0 & var42 == 0 & var3 == 1) | (var2 == 0 & var42 == 1 & var3 == 0) | (var2 == 1 & var42 == 0 & var3 == 0) | (var2 == 1 & var42 == 1 & var3 == 1) | 0) [L278-L281] CALL assume((var3 == 0 & var43 == 0 & var4 == 1) | (var3 == 0 & var43 == 1 & var4 == 0) | (var3 == 1 & var43 == 0 & var4 == 0) | (var3 == 1 & var43 == 1 & var4 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=88, cond=88] [L278-L281] RET assume((var3 == 0 & var43 == 0 & var4 == 1) | (var3 == 0 & var43 == 1 & var4 == 0) | (var3 == 1 & var43 == 0 & var4 == 0) | (var3 == 1 & var43 == 1 & var4 == 1) | 0) [L282-L285] CALL assume((var4 == 0 & var44 == 0 & var5 == 1) | (var4 == 0 & var44 == 1 & var5 == 0) | (var4 == 1 & var44 == 0 & var5 == 0) | (var4 == 1 & var44 == 1 & var5 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=62, cond=62] [L282-L285] RET assume((var4 == 0 & var44 == 0 & var5 == 1) | (var4 == 0 & var44 == 1 & var5 == 0) | (var4 == 1 & var44 == 0 & var5 == 0) | (var4 == 1 & var44 == 1 & var5 == 1) | 0) [L286-L289] CALL assume((var5 == 0 & var45 == 0 & var6 == 1) | (var5 == 0 & var45 == 1 & var6 == 0) | (var5 == 1 & var45 == 0 & var6 == 0) | (var5 == 1 & var45 == 1 & var6 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=58, cond=58] [L286-L289] RET assume((var5 == 0 & var45 == 0 & var6 == 1) | (var5 == 0 & var45 == 1 & var6 == 0) | (var5 == 1 & var45 == 0 & var6 == 0) | (var5 == 1 & var45 == 1 & var6 == 1) | 0) [L290-L293] CALL assume((var6 == 0 & var46 == 0 & var7 == 1) | (var6 == 0 & var46 == 1 & var7 == 0) | (var6 == 1 & var46 == 0 & var7 == 0) | (var6 == 1 & var46 == 1 & var7 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=84, cond=84] [L290-L293] RET assume((var6 == 0 & var46 == 0 & var7 == 1) | (var6 == 0 & var46 == 1 & var7 == 0) | (var6 == 1 & var46 == 0 & var7 == 0) | (var6 == 1 & var46 == 1 & var7 == 1) | 0) [L294-L297] CALL assume((var7 == 0 & var47 == 0 & var8 == 1) | (var7 == 0 & var47 == 1 & var8 == 0) | (var7 == 1 & var47 == 0 & var8 == 0) | (var7 == 1 & var47 == 1 & var8 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=65, cond=65] [L294-L297] RET assume((var7 == 0 & var47 == 0 & var8 == 1) | (var7 == 0 & var47 == 1 & var8 == 0) | (var7 == 1 & var47 == 0 & var8 == 0) | (var7 == 1 & var47 == 1 & var8 == 1) | 0) [L298-L301] CALL assume((var8 == 0 & var48 == 0 & var9 == 1) | (var8 == 0 & var48 == 1 & var9 == 0) | (var8 == 1 & var48 == 0 & var9 == 0) | (var8 == 1 & var48 == 1 & var9 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=76, cond=76] [L298-L301] RET assume((var8 == 0 & var48 == 0 & var9 == 1) | (var8 == 0 & var48 == 1 & var9 == 0) | (var8 == 1 & var48 == 0 & var9 == 0) | (var8 == 1 & var48 == 1 & var9 == 1) | 0) [L302-L305] CALL assume((var9 == 0 & var49 == 0 & var10 == 1) | (var9 == 0 & var49 == 1 & var10 == 0) | (var9 == 1 & var49 == 0 & var10 == 0) | (var9 == 1 & var49 == 1 & var10 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=83, cond=83] [L302-L305] RET assume((var9 == 0 & var49 == 0 & var10 == 1) | (var9 == 0 & var49 == 1 & var10 == 0) | (var9 == 1 & var49 == 0 & var10 == 0) | (var9 == 1 & var49 == 1 & var10 == 1) | 0) [L306-L309] CALL assume((var10 == 0 & var50 == 0 & var11 == 1) | (var10 == 0 & var50 == 1 & var11 == 0) | (var10 == 1 & var50 == 0 & var11 == 0) | (var10 == 1 & var50 == 1 & var11 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=80, cond=80] [L306-L309] RET assume((var10 == 0 & var50 == 0 & var11 == 1) | (var10 == 0 & var50 == 1 & var11 == 0) | (var10 == 1 & var50 == 0 & var11 == 0) | (var10 == 1 & var50 == 1 & var11 == 1) | 0) [L310-L313] CALL assume((var11 == 0 & var51 == 0 & var12 == 1) | (var11 == 0 & var51 == 1 & var12 == 0) | (var11 == 1 & var51 == 0 & var12 == 0) | (var11 == 1 & var51 == 1 & var12 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=49, cond=49] [L310-L313] RET assume((var11 == 0 & var51 == 0 & var12 == 1) | (var11 == 0 & var51 == 1 & var12 == 0) | (var11 == 1 & var51 == 0 & var12 == 0) | (var11 == 1 & var51 == 1 & var12 == 1) | 0) [L314-L317] CALL assume((var12 == 0 & var52 == 0 & var13 == 1) | (var12 == 0 & var52 == 1 & var13 == 0) | (var12 == 1 & var52 == 0 & var13 == 0) | (var12 == 1 & var52 == 1 & var13 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=68, cond=68] [L314-L317] RET assume((var12 == 0 & var52 == 0 & var13 == 1) | (var12 == 0 & var52 == 1 & var13 == 0) | (var12 == 1 & var52 == 0 & var13 == 0) | (var12 == 1 & var52 == 1 & var13 == 1) | 0) [L318-L321] CALL assume((var13 == 0 & var53 == 0 & var14 == 1) | (var13 == 0 & var53 == 1 & var14 == 0) | (var13 == 1 & var53 == 0 & var14 == 0) | (var13 == 1 & var53 == 1 & var14 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=51, cond=51] [L318-L321] RET assume((var13 == 0 & var53 == 0 & var14 == 1) | (var13 == 0 & var53 == 1 & var14 == 0) | (var13 == 1 & var53 == 0 & var14 == 0) | (var13 == 1 & var53 == 1 & var14 == 1) | 0) [L322-L325] CALL assume((var14 == 0 & var54 == 0 & var15 == 1) | (var14 == 0 & var54 == 1 & var15 == 0) | (var14 == 1 & var54 == 0 & var15 == 0) | (var14 == 1 & var54 == 1 & var15 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=85, cond=85] [L322-L325] RET assume((var14 == 0 & var54 == 0 & var15 == 1) | (var14 == 0 & var54 == 1 & var15 == 0) | (var14 == 1 & var54 == 0 & var15 == 0) | (var14 == 1 & var54 == 1 & var15 == 1) | 0) [L326-L329] CALL assume((var15 == 0 & var55 == 0 & var16 == 1) | (var15 == 0 & var55 == 1 & var16 == 0) | (var15 == 1 & var55 == 0 & var16 == 0) | (var15 == 1 & var55 == 1 & var16 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=79, cond=79] [L326-L329] RET assume((var15 == 0 & var55 == 0 & var16 == 1) | (var15 == 0 & var55 == 1 & var16 == 0) | (var15 == 1 & var55 == 0 & var16 == 0) | (var15 == 1 & var55 == 1 & var16 == 1) | 0) [L330-L333] CALL assume((var16 == 0 & var56 == 0 & var17 == 1) | (var16 == 0 & var56 == 1 & var17 == 0) | (var16 == 1 & var56 == 0 & var17 == 0) | (var16 == 1 & var56 == 1 & var17 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=56, cond=56] [L330-L333] RET assume((var16 == 0 & var56 == 0 & var17 == 1) | (var16 == 0 & var56 == 1 & var17 == 0) | (var16 == 1 & var56 == 0 & var17 == 0) | (var16 == 1 & var56 == 1 & var17 == 1) | 0) [L334-L337] CALL assume((var17 == 0 & var57 == 0 & var18 == 1) | (var17 == 0 & var57 == 1 & var18 == 0) | (var17 == 1 & var57 == 0 & var18 == 0) | (var17 == 1 & var57 == 1 & var18 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=72, cond=72] [L334-L337] RET assume((var17 == 0 & var57 == 0 & var18 == 1) | (var17 == 0 & var57 == 1 & var18 == 0) | (var17 == 1 & var57 == 0 & var18 == 0) | (var17 == 1 & var57 == 1 & var18 == 1) | 0) [L338-L341] CALL assume((var0 == 0 & var40 == 0 & var1 == 1) | (var0 == 0 & var40 == 1 & var1 == 0) | (var0 == 1 & var40 == 0 & var1 == 0) | (var0 == 1 & var40 == 1 & var1 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=55, cond=55] [L338-L341] RET assume((var0 == 0 & var40 == 0 & var1 == 1) | (var0 == 0 & var40 == 1 & var1 == 0) | (var0 == 1 & var40 == 0 & var1 == 0) | (var0 == 1 & var40 == 1 & var1 == 1) | 0) [L342-L345] CALL assume((var19 == 0 & var58 == 0 & var59 == 1) | (var19 == 0 & var58 == 1 & var59 == 0) | (var19 == 1 & var58 == 0 & var59 == 0) | (var19 == 1 & var58 == 1 & var59 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=63, cond=63] [L342-L345] RET assume((var19 == 0 & var58 == 0 & var59 == 1) | (var19 == 0 & var58 == 1 & var59 == 0) | (var19 == 1 & var58 == 0 & var59 == 0) | (var19 == 1 & var58 == 1 & var59 == 1) | 0) [L346-L349] CALL assume((var18 == 0 & var58 == 0 & var59 == 1) | (var18 == 0 & var58 == 1 & var59 == 0) | (var18 == 1 & var58 == 0 & var59 == 0) | (var18 == 1 & var58 == 1 & var59 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=73, cond=73] [L346-L349] RET assume((var18 == 0 & var58 == 0 & var59 == 1) | (var18 == 0 & var58 == 1 & var59 == 0) | (var18 == 1 & var58 == 0 & var59 == 0) | (var18 == 1 & var58 == 1 & var59 == 1) | 0) [L350-L353] CALL assume((var21 == 0 & var56 == 0 & var20 == 1) | (var21 == 0 & var56 == 1 & var20 == 0) | (var21 == 1 & var56 == 0 & var20 == 0) | (var21 == 1 & var56 == 1 & var20 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=61, cond=61] [L350-L353] RET assume((var21 == 0 & var56 == 0 & var20 == 1) | (var21 == 0 & var56 == 1 & var20 == 0) | (var21 == 1 & var56 == 0 & var20 == 0) | (var21 == 1 & var56 == 1 & var20 == 1) | 0) [L354-L357] CALL assume((var22 == 0 & var55 == 0 & var21 == 1) | (var22 == 0 & var55 == 1 & var21 == 0) | (var22 == 1 & var55 == 0 & var21 == 0) | (var22 == 1 & var55 == 1 & var21 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=82, cond=82] [L354-L357] RET assume((var22 == 0 & var55 == 0 & var21 == 1) | (var22 == 0 & var55 == 1 & var21 == 0) | (var22 == 1 & var55 == 0 & var21 == 0) | (var22 == 1 & var55 == 1 & var21 == 1) | 0) [L358-L361] CALL assume((var23 == 0 & var54 == 0 & var22 == 1) | (var23 == 0 & var54 == 1 & var22 == 0) | (var23 == 1 & var54 == 0 & var22 == 0) | (var23 == 1 & var54 == 1 & var22 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=52, cond=52] [L358-L361] RET assume((var23 == 0 & var54 == 0 & var22 == 1) | (var23 == 0 & var54 == 1 & var22 == 0) | (var23 == 1 & var54 == 0 & var22 == 0) | (var23 == 1 & var54 == 1 & var22 == 1) | 0) [L362-L365] CALL assume((var24 == 0 & var53 == 0 & var23 == 1) | (var24 == 0 & var53 == 1 & var23 == 0) | (var24 == 1 & var53 == 0 & var23 == 0) | (var24 == 1 & var53 == 1 & var23 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=60, cond=60] [L362-L365] RET assume((var24 == 0 & var53 == 0 & var23 == 1) | (var24 == 0 & var53 == 1 & var23 == 0) | (var24 == 1 & var53 == 0 & var23 == 0) | (var24 == 1 & var53 == 1 & var23 == 1) | 0) [L366-L369] CALL assume((var25 == 0 & var52 == 0 & var24 == 1) | (var25 == 0 & var52 == 1 & var24 == 0) | (var25 == 1 & var52 == 0 & var24 == 0) | (var25 == 1 & var52 == 1 & var24 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=74, cond=74] [L366-L369] RET assume((var25 == 0 & var52 == 0 & var24 == 1) | (var25 == 0 & var52 == 1 & var24 == 0) | (var25 == 1 & var52 == 0 & var24 == 0) | (var25 == 1 & var52 == 1 & var24 == 1) | 0) [L370-L373] CALL assume((var26 == 0 & var51 == 0 & var25 == 1) | (var26 == 0 & var51 == 1 & var25 == 0) | (var26 == 1 & var51 == 0 & var25 == 0) | (var26 == 1 & var51 == 1 & var25 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=70, cond=70] [L370-L373] RET assume((var26 == 0 & var51 == 0 & var25 == 1) | (var26 == 0 & var51 == 1 & var25 == 0) | (var26 == 1 & var51 == 0 & var25 == 0) | (var26 == 1 & var51 == 1 & var25 == 1) | 0) [L374-L377] CALL assume((var27 == 0 & var50 == 0 & var26 == 1) | (var27 == 0 & var50 == 1 & var26 == 0) | (var27 == 1 & var50 == 0 & var26 == 0) | (var27 == 1 & var50 == 1 & var26 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=57, cond=57] [L374-L377] RET assume((var27 == 0 & var50 == 0 & var26 == 1) | (var27 == 0 & var50 == 1 & var26 == 0) | (var27 == 1 & var50 == 0 & var26 == 0) | (var27 == 1 & var50 == 1 & var26 == 1) | 0) [L378-L381] CALL assume((var28 == 0 & var49 == 0 & var27 == 1) | (var28 == 0 & var49 == 1 & var27 == 0) | (var28 == 1 & var49 == 0 & var27 == 0) | (var28 == 1 & var49 == 1 & var27 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=50, cond=50] [L378-L381] RET assume((var28 == 0 & var49 == 0 & var27 == 1) | (var28 == 0 & var49 == 1 & var27 == 0) | (var28 == 1 & var49 == 0 & var27 == 0) | (var28 == 1 & var49 == 1 & var27 == 1) | 0) [L382-L385] CALL assume((var29 == 0 & var48 == 0 & var28 == 1) | (var29 == 0 & var48 == 1 & var28 == 0) | (var29 == 1 & var48 == 0 & var28 == 0) | (var29 == 1 & var48 == 1 & var28 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=59, cond=59] [L382-L385] RET assume((var29 == 0 & var48 == 0 & var28 == 1) | (var29 == 0 & var48 == 1 & var28 == 0) | (var29 == 1 & var48 == 0 & var28 == 0) | (var29 == 1 & var48 == 1 & var28 == 1) | 0) [L386-L389] CALL assume((var30 == 0 & var47 == 0 & var29 == 1) | (var30 == 0 & var47 == 1 & var29 == 0) | (var30 == 1 & var47 == 0 & var29 == 0) | (var30 == 1 & var47 == 1 & var29 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=64, cond=64] [L386-L389] RET assume((var30 == 0 & var47 == 0 & var29 == 1) | (var30 == 0 & var47 == 1 & var29 == 0) | (var30 == 1 & var47 == 0 & var29 == 0) | (var30 == 1 & var47 == 1 & var29 == 1) | 0) [L390-L393] CALL assume((var31 == 0 & var46 == 0 & var30 == 1) | (var31 == 0 & var46 == 1 & var30 == 0) | (var31 == 1 & var46 == 0 & var30 == 0) | (var31 == 1 & var46 == 1 & var30 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=75, cond=75] [L390-L393] RET assume((var31 == 0 & var46 == 0 & var30 == 1) | (var31 == 0 & var46 == 1 & var30 == 0) | (var31 == 1 & var46 == 0 & var30 == 0) | (var31 == 1 & var46 == 1 & var30 == 1) | 0) [L394-L397] CALL assume((var32 == 0 & var45 == 0 & var31 == 1) | (var32 == 0 & var45 == 1 & var31 == 0) | (var32 == 1 & var45 == 0 & var31 == 0) | (var32 == 1 & var45 == 1 & var31 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=77, cond=77] [L394-L397] RET assume((var32 == 0 & var45 == 0 & var31 == 1) | (var32 == 0 & var45 == 1 & var31 == 0) | (var32 == 1 & var45 == 0 & var31 == 0) | (var32 == 1 & var45 == 1 & var31 == 1) | 0) [L398-L401] CALL assume((var33 == 0 & var44 == 0 & var32 == 1) | (var33 == 0 & var44 == 1 & var32 == 0) | (var33 == 1 & var44 == 0 & var32 == 0) | (var33 == 1 & var44 == 1 & var32 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=54, cond=54] [L398-L401] RET assume((var33 == 0 & var44 == 0 & var32 == 1) | (var33 == 0 & var44 == 1 & var32 == 0) | (var33 == 1 & var44 == 0 & var32 == 0) | (var33 == 1 & var44 == 1 & var32 == 1) | 0) [L402-L405] CALL assume((var34 == 0 & var43 == 0 & var33 == 1) | (var34 == 0 & var43 == 1 & var33 == 0) | (var34 == 1 & var43 == 0 & var33 == 0) | (var34 == 1 & var43 == 1 & var33 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=53, cond=53] [L402-L405] RET assume((var34 == 0 & var43 == 0 & var33 == 1) | (var34 == 0 & var43 == 1 & var33 == 0) | (var34 == 1 & var43 == 0 & var33 == 0) | (var34 == 1 & var43 == 1 & var33 == 1) | 0) [L406-L409] CALL assume((var35 == 0 & var42 == 0 & var34 == 1) | (var35 == 0 & var42 == 1 & var34 == 0) | (var35 == 1 & var42 == 0 & var34 == 0) | (var35 == 1 & var42 == 1 & var34 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=86, cond=86] [L406-L409] RET assume((var35 == 0 & var42 == 0 & var34 == 1) | (var35 == 0 & var42 == 1 & var34 == 0) | (var35 == 1 & var42 == 0 & var34 == 0) | (var35 == 1 & var42 == 1 & var34 == 1) | 0) [L410-L413] CALL assume((var36 == 0 & var41 == 0 & var35 == 1) | (var36 == 0 & var41 == 1 & var35 == 0) | (var36 == 1 & var41 == 0 & var35 == 0) | (var36 == 1 & var41 == 1 & var35 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=87, cond=87] [L410-L413] RET assume((var36 == 0 & var41 == 0 & var35 == 1) | (var36 == 0 & var41 == 1 & var35 == 0) | (var36 == 1 & var41 == 0 & var35 == 0) | (var36 == 1 & var41 == 1 & var35 == 1) | 0) [L414-L417] CALL assume((var37 == 0 & var40 == 0 & var36 == 1) | (var37 == 0 & var40 == 1 & var36 == 0) | (var37 == 1 & var40 == 0 & var36 == 0) | (var37 == 1 & var40 == 1 & var36 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=71, cond=71] [L414-L417] RET assume((var37 == 0 & var40 == 0 & var36 == 1) | (var37 == 0 & var40 == 1 & var36 == 0) | (var37 == 1 & var40 == 0 & var36 == 0) | (var37 == 1 & var40 == 1 & var36 == 1) | 0) [L418-L421] CALL assume((var20 == 0 & var57 == 0 & var19 == 1) | (var20 == 0 & var57 == 1 & var19 == 0) | (var20 == 1 & var57 == 0 & var19 == 0) | (var20 == 1 & var57 == 1 & var19 == 1) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=69, cond=69] [L418-L421] RET assume((var20 == 0 & var57 == 0 & var19 == 1) | (var20 == 0 & var57 == 1 & var19 == 0) | (var20 == 1 & var57 == 0 & var19 == 0) | (var20 == 1 & var57 == 1 & var19 == 1) | 0) [L422-L425] CALL assume((var38 == 0 & var39 == 0 & var37 == 0) | (var38 == 0 & var39 == 1 & var37 == 1) | (var38 == 1 & var39 == 0 & var37 == 1) | (var38 == 1 & var39 == 1 & var37 == 0) | 0) [L18] COND FALSE !(!cond) VAL [\old(cond)=78, cond=78] [L422-L425] RET assume((var38 == 0 & var39 == 0 & var37 == 0) | (var38 == 0 & var39 == 1 & var37 == 1) | (var38 == 1 & var39 == 0 & var37 == 1) | (var38 == 1 & var39 == 1 & var37 == 0) | 0) [L426] reach_error() VAL [dummy=0, myvar0=1, var0=1, var1=1, var10=1, var11=1, var12=1, var13=1, var14=0, var15=1, var16=1, var17=0, var18=0, var19=1, var2=0, var20=1, var21=1, var22=1, var23=1, var24=1, var25=0, var26=1, var27=1, var28=1, var29=0, var3=0, var30=1, var31=0, var32=1, var33=1, var34=1, var35=0, var36=0, var37=1, var38=0, var39=1, var4=0, var40=0, var41=0, var42=1, var43=0, var44=0, var45=1, var46=1, var47=1, var48=1, var49=1, var5=0, var50=1, var51=1, var52=1, var53=1, var54=1, var55=0, var56=0, var57=1, var58=0, var59=0, var6=1, var7=1, var8=1, var9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 327 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 323 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 323 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=327occurred in iteration=0, InterpolantAutomatonStates: 2, 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: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 646 NumberOfCodeBlocks, 646 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 322 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 could not prove your program: unable to determine feasibility of some traces [2021-11-23 12:30:37,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/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_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/Dubois-020.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/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 93d5a5d399a9dd6cd6b636e570174f8a08707ae74dd799252569e666733011b7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 12:30:40,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:30:40,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:30:40,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:30:40,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:30:40,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:30:40,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:30:40,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:30:40,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:30:40,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:30:40,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:30:40,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:30:40,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:30:40,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:30:40,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:30:40,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:30:40,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:30:40,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:30:40,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:30:40,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:30:40,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:30:40,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:30:40,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:30:40,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:30:40,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:30:40,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:30:40,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:30:40,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:30:40,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:30:40,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:30:40,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:30:40,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:30:40,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:30:40,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:30:40,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:30:40,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:30:40,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:30:40,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:30:40,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:30:40,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:30:40,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:30:40,914 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-23 12:30:40,956 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:30:40,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:30:40,957 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:30:40,958 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:30:40,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:30:40,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:30:40,960 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:30:40,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:30:40,960 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 12:30:40,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 12:30:40,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:30:40,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 12:30:40,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 12:30:40,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 12:30:40,965 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 12:30:40,965 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 12:30:40,965 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 12:30:40,965 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 12:30:40,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:30:40,966 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:30:40,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 12:30:40,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:30:40,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:30:40,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 12:30:40,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:30:40,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:30:40,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 12:30:40,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 12:30:40,970 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-23 12:30:40,970 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 12:30:40,970 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 12:30:40,970 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 12:30:40,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 12:30:40,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:30:40,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 12:30:40,972 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_cca0d569-ea4a-4833-8772-212d65bef603/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93d5a5d399a9dd6cd6b636e570174f8a08707ae74dd799252569e666733011b7 [2021-11-23 12:30:41,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:30:41,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:30:41,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:30:41,490 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:30:41,492 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:30:41,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/xcsp/Dubois-020.c [2021-11-23 12:30:41,592 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/data/d111ad2c1/740d04fb86c54ef9b403ec3fd746a2f6/FLAG8fc625675 [2021-11-23 12:30:42,251 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:30:42,259 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/sv-benchmarks/c/xcsp/Dubois-020.c [2021-11-23 12:30:42,274 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/data/d111ad2c1/740d04fb86c54ef9b403ec3fd746a2f6/FLAG8fc625675 [2021-11-23 12:30:42,512 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/data/d111ad2c1/740d04fb86c54ef9b403ec3fd746a2f6 [2021-11-23 12:30:42,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:30:42,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:30:42,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:30:42,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:30:42,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:30:42,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:30:42" (1/1) ... [2021-11-23 12:30:42,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ff014ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:42, skipping insertion in model container [2021-11-23 12:30:42,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:30:42" (1/1) ... [2021-11-23 12:30:42,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:30:42,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:30:42,983 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_cca0d569-ea4a-4833-8772-212d65bef603/sv-benchmarks/c/xcsp/Dubois-020.c[14400,14413] [2021-11-23 12:30:43,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:30:43,021 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:30:43,197 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_cca0d569-ea4a-4833-8772-212d65bef603/sv-benchmarks/c/xcsp/Dubois-020.c[14400,14413] [2021-11-23 12:30:43,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:30:43,245 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:30:43,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:43 WrapperNode [2021-11-23 12:30:43,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:30:43,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:30:43,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:30:43,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:30:43,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:43" (1/1) ... [2021-11-23 12:30:43,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:43" (1/1) ... [2021-11-23 12:30:43,407 INFO L137 Inliner]: procedures = 13, calls = 167, calls flagged for inlining = 162, calls inlined = 162, statements flattened = 837 [2021-11-23 12:30:43,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:30:43,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:30:43,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:30:43,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:30:43,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:43" (1/1) ... [2021-11-23 12:30:43,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:43" (1/1) ... [2021-11-23 12:30:43,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:43" (1/1) ... [2021-11-23 12:30:43,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:43" (1/1) ... [2021-11-23 12:30:43,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:43" (1/1) ... [2021-11-23 12:30:43,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:43" (1/1) ... [2021-11-23 12:30:43,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:43" (1/1) ... [2021-11-23 12:30:43,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:30:43,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:30:43,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:30:43,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:30:43,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:43" (1/1) ... [2021-11-23 12:30:43,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:30:43,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:30:43,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 12:30:43,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 12:30:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 12:30:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:30:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:30:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 12:30:43,810 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:30:43,812 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:30:45,039 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:30:45,063 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:30:45,063 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 12:30:45,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:30:45 BoogieIcfgContainer [2021-11-23 12:30:45,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:30:45,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 12:30:45,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 12:30:45,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 12:30:45,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:30:42" (1/3) ... [2021-11-23 12:30:45,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49130dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:30:45, skipping insertion in model container [2021-11-23 12:30:45,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:30:43" (2/3) ... [2021-11-23 12:30:45,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49130dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:30:45, skipping insertion in model container [2021-11-23 12:30:45,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:30:45" (3/3) ... [2021-11-23 12:30:45,080 INFO L111 eAbstractionObserver]: Analyzing ICFG Dubois-020.c [2021-11-23 12:30:45,087 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 12:30:45,087 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 12:30:45,163 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 12:30:45,171 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 12:30:45,172 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 12:30:45,201 INFO L276 IsEmpty]: Start isEmpty. Operand has 327 states, 325 states have (on average 1.4953846153846153) internal successors, (486), 326 states have internal predecessors, (486), 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 12:30:45,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-11-23 12:30:45,237 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:30:45,238 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:30:45,239 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:30:45,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:30:45,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1842972248, now seen corresponding path program 1 times [2021-11-23 12:30:45,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 12:30:45,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064471864] [2021-11-23 12:30:45,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:30:45,274 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 12:30:45,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 12:30:45,278 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 12:30:45,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 12:30:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:30:45,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 12:30:45,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:30:46,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:30:46,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:30:47,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:30:47,145 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 12:30:47,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064471864] [2021-11-23 12:30:47,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1064471864] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 12:30:47,147 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:30:47,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 12:30:47,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821224601] [2021-11-23 12:30:47,151 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 12:30:47,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 12:30:47,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 12:30:47,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 12:30:47,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 12:30:47,213 INFO L87 Difference]: Start difference. First operand has 327 states, 325 states have (on average 1.4953846153846153) internal successors, (486), 326 states have internal predecessors, (486), 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) Second operand has 2 states, 2 states have (on average 161.5) internal successors, (323), 2 states have internal predecessors, (323), 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 12:30:47,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:30:47,269 INFO L93 Difference]: Finished difference Result 648 states and 966 transitions. [2021-11-23 12:30:47,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 12:30:47,272 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 161.5) internal successors, (323), 2 states have internal predecessors, (323), 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) Word has length 323 [2021-11-23 12:30:47,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:30:47,290 INFO L225 Difference]: With dead ends: 648 [2021-11-23 12:30:47,290 INFO L226 Difference]: Without dead ends: 324 [2021-11-23 12:30:47,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 644 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 12:30:47,309 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:30:47,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:30:47,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-11-23 12:30:47,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2021-11-23 12:30:47,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 323 states have (on average 1.0) internal successors, (323), 323 states have internal predecessors, (323), 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 12:30:47,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 323 transitions. [2021-11-23 12:30:47,428 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 323 transitions. Word has length 323 [2021-11-23 12:30:47,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:30:47,429 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 323 transitions. [2021-11-23 12:30:47,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 161.5) internal successors, (323), 2 states have internal predecessors, (323), 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 12:30:47,429 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 323 transitions. [2021-11-23 12:30:47,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-11-23 12:30:47,439 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:30:47,440 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:30:47,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 12:30:47,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 12:30:47,659 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:30:47,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:30:47,662 INFO L85 PathProgramCache]: Analyzing trace with hash -2014303808, now seen corresponding path program 1 times [2021-11-23 12:30:47,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 12:30:47,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566738970] [2021-11-23 12:30:47,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:30:47,666 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 12:30:47,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 12:30:47,667 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 12:30:47,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0d569-ea4a-4833-8772-212d65bef603/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 12:31:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:23,148 WARN L261 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 324 conjunts are in the unsatisfiable core [2021-11-23 12:31:23,188 INFO L286 TraceCheckSpWp]: Computing forward predicates...