./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e89b4ab54b22145b4041cfb458aca993f2d791ac86940dcd03d48a90a5273393 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:23:27,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:23:27,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:23:27,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:23:27,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:23:27,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:23:27,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:23:27,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:23:27,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:23:27,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:23:27,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:23:27,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:23:27,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:23:27,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:23:27,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:23:27,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:23:27,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:23:27,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:23:27,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:23:27,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:23:27,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:23:27,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:23:27,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:23:27,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:23:27,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:23:27,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:23:27,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:23:27,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:23:27,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:23:27,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:23:27,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:23:27,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:23:27,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:23:27,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:23:27,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:23:27,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:23:27,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:23:27,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:23:27,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:23:27,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:23:27,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:23:27,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:23:27,403 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:23:27,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:23:27,404 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:23:27,404 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:23:27,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:23:27,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:23:27,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:23:27,406 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:23:27,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:23:27,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:23:27,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:23:27,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:23:27,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:23:27,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:23:27,407 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:23:27,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:23:27,407 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:23:27,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:23:27,408 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:23:27,408 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:23:27,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:23:27,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:23:27,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:23:27,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:23:27,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:23:27,409 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:23:27,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:23:27,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:23:27,410 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_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e89b4ab54b22145b4041cfb458aca993f2d791ac86940dcd03d48a90a5273393 [2021-11-23 00:23:27,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:23:27,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:23:27,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:23:27,663 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:23:27,664 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:23:27,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c [2021-11-23 00:23:27,733 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ/data/6f83452d6/6f343cd2da584efeb117e3773a541d95/FLAGf0da88607 [2021-11-23 00:23:28,207 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:23:28,207 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c [2021-11-23 00:23:28,213 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ/data/6f83452d6/6f343cd2da584efeb117e3773a541d95/FLAGf0da88607 [2021-11-23 00:23:28,601 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ/data/6f83452d6/6f343cd2da584efeb117e3773a541d95 [2021-11-23 00:23:28,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:23:28,605 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:23:28,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:23:28,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:23:28,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:23:28,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:23:28" (1/1) ... [2021-11-23 00:23:28,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23309852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:28, skipping insertion in model container [2021-11-23 00:23:28,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:23:28" (1/1) ... [2021-11-23 00:23:28,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:23:28,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:23:28,771 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_56ac745c-07b7-4c9a-9020-7657b8932f97/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c[489,502] [2021-11-23 00:23:28,796 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:23:28,813 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:23:28,828 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_56ac745c-07b7-4c9a-9020-7657b8932f97/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c[489,502] [2021-11-23 00:23:28,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:23:28,865 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:23:28,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:28 WrapperNode [2021-11-23 00:23:28,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:23:28,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:23:28,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:23:28,869 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:23:28,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:28" (1/1) ... [2021-11-23 00:23:28,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:28" (1/1) ... [2021-11-23 00:23:28,908 INFO L137 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2021-11-23 00:23:28,909 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:23:28,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:23:28,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:23:28,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:23:28,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:28" (1/1) ... [2021-11-23 00:23:28,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:28" (1/1) ... [2021-11-23 00:23:28,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:28" (1/1) ... [2021-11-23 00:23:28,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:28" (1/1) ... [2021-11-23 00:23:28,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:28" (1/1) ... [2021-11-23 00:23:28,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:28" (1/1) ... [2021-11-23 00:23:28,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:28" (1/1) ... [2021-11-23 00:23:28,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:23:28,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:23:28,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:23:28,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:23:28,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:28" (1/1) ... [2021-11-23 00:23:28,964 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:23:28,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:23:28,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:23:29,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:23:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:23:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 00:23:29,030 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 00:23:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:23:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:23:29,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:23:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:23:29,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:23:29,085 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:23:29,087 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:23:29,199 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:23:29,226 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:23:29,226 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:23:29,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:23:29 BoogieIcfgContainer [2021-11-23 00:23:29,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:23:29,230 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:23:29,230 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:23:29,242 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:23:29,243 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:23:29" (1/1) ... [2021-11-23 00:23:29,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:23:29,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:29,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2021-11-23 00:23:29,307 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2021-11-23 00:23:29,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 00:23:29,313 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:29,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:29,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 00:23:29,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:29,638 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:23:29,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:29,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 30 states and 48 transitions. [2021-11-23 00:23:29,784 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 48 transitions. [2021-11-23 00:23:29,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 00:23:29,786 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:29,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:29,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:23:29,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:30,249 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 00:23:30,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:30,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 36 states and 63 transitions. [2021-11-23 00:23:30,553 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2021-11-23 00:23:30,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 00:23:30,554 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:30,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:30,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 00:23:30,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:30,801 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 00:23:30,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:30,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 36 states and 63 transitions. [2021-11-23 00:23:30,826 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2021-11-23 00:23:30,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 00:23:30,827 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:30,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:30,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-23 00:23:30,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:31,035 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 00:23:31,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:31,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 41 states and 74 transitions. [2021-11-23 00:23:31,465 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 74 transitions. [2021-11-23 00:23:31,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 00:23:31,466 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:31,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:31,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 00:23:31,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:31,846 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 00:23:32,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:32,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 36 states and 62 transitions. [2021-11-23 00:23:32,061 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 62 transitions. [2021-11-23 00:23:32,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 00:23:32,062 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:32,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:32,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 00:23:32,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:32,352 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-23 00:23:32,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:32,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 40 states and 71 transitions. [2021-11-23 00:23:32,949 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 71 transitions. [2021-11-23 00:23:32,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 00:23:32,951 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:32,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:32,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:23:32,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:33,063 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:23:33,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:33,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 40 states and 70 transitions. [2021-11-23 00:23:33,108 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 70 transitions. [2021-11-23 00:23:33,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 00:23:33,109 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:33,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:33,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 00:23:33,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:33,462 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:23:34,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:34,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 44 states and 83 transitions. [2021-11-23 00:23:34,012 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 83 transitions. [2021-11-23 00:23:34,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 00:23:34,013 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:34,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:34,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 00:23:34,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:34,302 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-23 00:23:35,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:35,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 48 states and 93 transitions. [2021-11-23 00:23:35,013 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 93 transitions. [2021-11-23 00:23:35,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 00:23:35,014 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:35,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:35,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-23 00:23:35,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:35,597 WARN L906 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2021-11-23 00:23:36,200 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 11 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 00:23:38,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:38,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 52 states and 107 transitions. [2021-11-23 00:23:38,112 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 107 transitions. [2021-11-23 00:23:38,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 00:23:38,114 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:38,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:38,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 00:23:38,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:38,746 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 00:23:40,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:40,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 56 states and 120 transitions. [2021-11-23 00:23:40,311 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 120 transitions. [2021-11-23 00:23:40,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 00:23:40,312 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:40,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:40,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:23:40,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:40,709 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:23:42,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:42,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 61 states and 141 transitions. [2021-11-23 00:23:42,666 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 141 transitions. [2021-11-23 00:23:42,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 00:23:42,667 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:42,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:42,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 00:23:42,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:43,599 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-23 00:23:45,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:45,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 65 states and 154 transitions. [2021-11-23 00:23:45,773 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 154 transitions. [2021-11-23 00:23:45,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 00:23:45,774 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:45,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:45,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 00:23:45,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:46,287 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-23 00:23:47,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:47,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 68 states and 160 transitions. [2021-11-23 00:23:47,242 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 160 transitions. [2021-11-23 00:23:47,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 00:23:47,244 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:47,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:47,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:23:47,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:23:47,536 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-11-23 00:24:00,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:00,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 72 states and 170 transitions. [2021-11-23 00:24:00,978 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 170 transitions. [2021-11-23 00:24:00,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 00:24:00,979 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:00,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:01,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 00:24:01,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:01,547 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-23 00:24:06,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:06,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 74 states and 181 transitions. [2021-11-23 00:24:06,909 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 181 transitions. [2021-11-23 00:24:06,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 00:24:06,911 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:06,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:06,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-23 00:24:06,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:07,380 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-23 00:24:08,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:08,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 76 states and 187 transitions. [2021-11-23 00:24:08,604 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 187 transitions. [2021-11-23 00:24:08,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-23 00:24:08,606 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:08,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:08,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 00:24:08,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:08,720 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-23 00:24:10,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:10,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 78 states and 192 transitions. [2021-11-23 00:24:10,221 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 192 transitions. [2021-11-23 00:24:10,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-23 00:24:10,222 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:10,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:10,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 00:24:10,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:10,348 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-23 00:24:13,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:13,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 46 states and 72 transitions. [2021-11-23 00:24:13,351 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 72 transitions. [2021-11-23 00:24:13,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 00:24:13,352 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:13,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:13,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:24:13,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:13,507 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 27 proven. 13 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-23 00:24:16,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:16,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 47 states and 73 transitions. [2021-11-23 00:24:16,834 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 73 transitions. [2021-11-23 00:24:16,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 00:24:16,834 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:16,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:16,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:24:16,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:17,021 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 27 proven. 13 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-23 00:24:19,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:19,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 43 states and 64 transitions. [2021-11-23 00:24:19,532 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 64 transitions. [2021-11-23 00:24:19,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-23 00:24:19,533 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:19,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:19,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 00:24:19,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:24:19,672 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 33 proven. 10 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-23 00:24:21,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:21,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 33 states and 49 transitions. [2021-11-23 00:24:21,472 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2021-11-23 00:24:21,473 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 00:24:21,473 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 23 iterations. [2021-11-23 00:24:21,482 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 00:24:21,846 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 00:24:21,850 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 00:24:21,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:24:21 ImpRootNode [2021-11-23 00:24:21,851 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:24:21,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:24:21,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:24:21,852 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:24:21,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:23:29" (3/4) ... [2021-11-23 00:24:21,855 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 00:24:21,861 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-23 00:24:21,861 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-23 00:24:21,865 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-11-23 00:24:21,866 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-23 00:24:21,866 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 00:24:21,866 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 00:24:21,919 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:24:21,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:24:21,921 INFO L158 Benchmark]: Toolchain (without parser) took 53314.91ms. Allocated memory was 98.6MB in the beginning and 201.3MB in the end (delta: 102.8MB). Free memory was 73.1MB in the beginning and 119.3MB in the end (delta: -46.3MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. [2021-11-23 00:24:21,921 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 81.8MB. Free memory was 52.5MB in the beginning and 52.4MB in the end (delta: 58.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:24:21,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.86ms. Allocated memory is still 98.6MB. Free memory was 72.8MB in the beginning and 62.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 00:24:21,922 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.46ms. Allocated memory is still 98.6MB. Free memory was 62.7MB in the beginning and 61.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:24:21,923 INFO L158 Benchmark]: Boogie Preprocessor took 45.31ms. Allocated memory is still 98.6MB. Free memory was 61.2MB in the beginning and 60.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:24:21,924 INFO L158 Benchmark]: RCFGBuilder took 273.67ms. Allocated memory is still 98.6MB. Free memory was 60.0MB in the beginning and 49.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 00:24:21,925 INFO L158 Benchmark]: CodeCheck took 52621.06ms. Allocated memory was 98.6MB in the beginning and 201.3MB in the end (delta: 102.8MB). Free memory was 48.8MB in the beginning and 122.4MB in the end (delta: -73.6MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2021-11-23 00:24:21,925 INFO L158 Benchmark]: Witness Printer took 68.39ms. Allocated memory is still 201.3MB. Free memory was 122.4MB in the beginning and 119.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:24:21,929 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 52.2s, OverallIterations: 23, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3147 SdHoareTripleChecker+Valid, 18.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 520 mSDsluCounter, 1859 SdHoareTripleChecker+Invalid, 16.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 646 mSDsCounter, 2337 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6645 IncrementalHoareTripleChecker+Invalid, 8982 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2337 mSolverCounterUnsat, 1213 mSDtfsCounter, 6645 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8986 GetRequests, 8637 SyntacticMatches, 125 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22686 ImplicationChecksByTransitivity, 43.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 957 NumberOfCodeBlocks, 957 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 935 ConstructedInterpolants, 0 QuantifiedInterpolants, 3728 SizeOfPredicates, 94 NumberOfNonLiveVariables, 2794 ConjunctsInSsa, 410 ConjunctsInUnsatCore, 22 InterpolantComputations, 8 PerfectInterpolantSequences, 1345/1451 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 81.8MB. Free memory was 52.5MB in the beginning and 52.4MB in the end (delta: 58.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.86ms. Allocated memory is still 98.6MB. Free memory was 72.8MB in the beginning and 62.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.46ms. Allocated memory is still 98.6MB. Free memory was 62.7MB in the beginning and 61.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.31ms. Allocated memory is still 98.6MB. Free memory was 61.2MB in the beginning and 60.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 273.67ms. Allocated memory is still 98.6MB. Free memory was 60.0MB in the beginning and 49.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 52621.06ms. Allocated memory was 98.6MB in the beginning and 201.3MB in the end (delta: 102.8MB). Free memory was 48.8MB in the beginning and 122.4MB in the end (delta: -73.6MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. * Witness Printer took 68.39ms. Allocated memory is still 201.3MB. Free memory was 122.4MB in the beginning and 119.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 00:24:21,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ac745c-07b7-4c9a-9020-7657b8932f97/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE