./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound5.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_aa31ec8d-048f-489c-809c-21949f2d39ba/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa31ec8d-048f-489c-809c-21949f2d39ba/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_aa31ec8d-048f-489c-809c-21949f2d39ba/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa31ec8d-048f-489c-809c-21949f2d39ba/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa31ec8d-048f-489c-809c-21949f2d39ba/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_aa31ec8d-048f-489c-809c-21949f2d39ba/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 a8eb1c4cff73de825c0246f8cf2782e4a89e8227445b840b0a85ffef021d29c3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:18:24,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:18:24,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:18:24,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:18:24,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:18:24,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:18:24,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:18:24,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:18:24,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:18:24,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:18:24,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:18:24,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:18:24,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:18:24,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:18:24,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:18:24,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:18:24,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:18:24,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:18:24,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:18:24,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:18:24,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:18:24,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:18:24,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:18:24,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:18:24,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:18:24,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:18:24,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:18:24,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:18:24,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:18:24,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:18:24,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:18:24,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:18:24,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:18:24,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:18:24,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:18:24,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:18:24,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:18:24,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:18:24,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:18:24,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:18:24,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:18:24,248 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa31ec8d-048f-489c-809c-21949f2d39ba/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:18:24,279 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:18:24,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:18:24,280 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:18:24,281 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:18:24,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:18:24,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:18:24,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:18:24,282 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:18:24,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:18:24,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:18:24,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:18:24,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:18:24,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:18:24,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:18:24,283 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:18:24,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:18:24,284 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:18:24,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:18:24,284 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:18:24,284 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:18:24,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:18:24,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:18:24,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:18:24,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:18:24,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:18:24,286 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:18:24,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:18:24,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:18:24,287 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_aa31ec8d-048f-489c-809c-21949f2d39ba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa31ec8d-048f-489c-809c-21949f2d39ba/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8eb1c4cff73de825c0246f8cf2782e4a89e8227445b840b0a85ffef021d29c3 [2021-11-22 23:18:24,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:18:24,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:18:24,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:18:24,595 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:18:24,596 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:18:24,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa31ec8d-048f-489c-809c-21949f2d39ba/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound5.c [2021-11-22 23:18:24,696 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa31ec8d-048f-489c-809c-21949f2d39ba/bin/ukojak-LBtLqBUTdQ/data/79bb7c6f9/36d6f8f904fa49418663366ab5e93f8c/FLAG4c0cac47f [2021-11-22 23:18:25,335 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:18:25,338 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa31ec8d-048f-489c-809c-21949f2d39ba/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound5.c [2021-11-22 23:18:25,352 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa31ec8d-048f-489c-809c-21949f2d39ba/bin/ukojak-LBtLqBUTdQ/data/79bb7c6f9/36d6f8f904fa49418663366ab5e93f8c/FLAG4c0cac47f [2021-11-22 23:18:25,706 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa31ec8d-048f-489c-809c-21949f2d39ba/bin/ukojak-LBtLqBUTdQ/data/79bb7c6f9/36d6f8f904fa49418663366ab5e93f8c [2021-11-22 23:18:25,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:18:25,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:18:25,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:18:25,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:18:25,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:18:25,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:18:25" (1/1) ... [2021-11-22 23:18:25,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23cd0245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:25, skipping insertion in model container [2021-11-22 23:18:25,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:18:25" (1/1) ... [2021-11-22 23:18:25,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:18:25,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:18:25,937 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_aa31ec8d-048f-489c-809c-21949f2d39ba/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound5.c[524,537] [2021-11-22 23:18:25,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:18:25,970 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:18:25,984 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_aa31ec8d-048f-489c-809c-21949f2d39ba/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound5.c[524,537] [2021-11-22 23:18:25,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:18:26,007 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:18:26,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:26 WrapperNode [2021-11-22 23:18:26,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:18:26,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:18:26,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:18:26,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:18:26,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:26" (1/1) ... [2021-11-22 23:18:26,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:26" (1/1) ... [2021-11-22 23:18:26,046 INFO L137 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2021-11-22 23:18:26,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:18:26,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:18:26,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:18:26,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:18:26,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:26" (1/1) ... [2021-11-22 23:18:26,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:26" (1/1) ... [2021-11-22 23:18:26,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:26" (1/1) ... [2021-11-22 23:18:26,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:26" (1/1) ... [2021-11-22 23:18:26,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:26" (1/1) ... [2021-11-22 23:18:26,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:26" (1/1) ... [2021-11-22 23:18:26,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:26" (1/1) ... [2021-11-22 23:18:26,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:18:26,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:18:26,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:18:26,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:18:26,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:18:26" (1/1) ... [2021-11-22 23:18:26,086 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:18:26,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa31ec8d-048f-489c-809c-21949f2d39ba/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:18:26,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa31ec8d-048f-489c-809c-21949f2d39ba/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:18:26,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa31ec8d-048f-489c-809c-21949f2d39ba/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:18:26,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:18:26,191 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-22 23:18:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-22 23:18:26,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:18:26,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:18:26,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:18:26,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-22 23:18:26,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-22 23:18:26,271 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:18:26,273 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:18:26,482 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:18:26,526 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:18:26,526 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 23:18:26,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:18:26 BoogieIcfgContainer [2021-11-22 23:18:26,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:18:26,533 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:18:26,534 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:18:26,546 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:18:26,546 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:18:26" (1/1) ... [2021-11-22 23:18:26,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:18:26,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:26,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2021-11-22 23:18:26,656 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-11-22 23:18:26,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 23:18:26,662 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:26,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:26,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-22 23:18:26,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:26,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:18:26,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:26,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2021-11-22 23:18:26,925 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-11-22 23:18:26,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-22 23:18:26,926 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:26,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:26,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-22 23:18:26,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:27,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:18:27,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:27,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2021-11-22 23:18:27,149 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-11-22 23:18:27,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-22 23:18:27,150 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:27,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:27,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 23:18:27,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:27,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:18:29,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-22 23:18:31,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:31,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 26 states and 35 transitions. [2021-11-22 23:18:31,023 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2021-11-22 23:18:31,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-22 23:18:31,025 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:31,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:31,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-22 23:18:31,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:31,718 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:18:35,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-22 23:18:36,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:18:36,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2021-11-22 23:18:36,009 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2021-11-22 23:18:36,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-22 23:18:36,010 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:18:36,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:18:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:18:36,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:18:36,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:18:42,207 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 23:19:06,253 WARN L227 SmtUtils]: Spent 20.55s on a formula simplification. DAG size of input: 34 DAG size of output: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:19:20,635 WARN L227 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:19:21,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-22 23:19:28,173 WARN L227 SmtUtils]: Spent 6.01s on a formula simplification. DAG size of input: 53 DAG size of output: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:19:39,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-22 23:19:53,586 WARN L227 SmtUtils]: Spent 8.09s on a formula simplification. DAG size of input: 53 DAG size of output: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:20:19,194 WARN L227 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 52 DAG size of output: 42 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:20:30,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.80s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-22 23:20:31,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:31,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 37 states and 59 transitions. [2021-11-22 23:20:31,615 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 59 transitions. [2021-11-22 23:20:31,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-22 23:20:31,616 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:31,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:31,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 23:20:31,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:31,840 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 23:20:39,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:20:39,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 45 states and 84 transitions. [2021-11-22 23:20:39,653 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 84 transitions. [2021-11-22 23:20:39,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-22 23:20:39,655 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:20:39,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:20:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:20:39,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 23:20:39,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:20:55,588 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 23:21:06,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-22 23:21:11,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.78s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-22 23:21:21,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:21:21,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 47 states and 89 transitions. [2021-11-22 23:21:21,068 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 89 transitions. [2021-11-22 23:21:21,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-22 23:21:21,070 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:21:21,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:21:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:21:21,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-22 23:21:21,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:22:24,005 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:23:06,475 WARN L227 SmtUtils]: Spent 10.81s on a formula simplification that was a NOOP. DAG size: 75 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:23:24,649 WARN L227 SmtUtils]: Spent 11.54s on a formula simplification that was a NOOP. DAG size: 76 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:25:16,192 WARN L227 SmtUtils]: Spent 43.44s on a formula simplification. DAG size of input: 98 DAG size of output: 80 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:25:57,692 WARN L227 SmtUtils]: Spent 6.85s on a formula simplification. DAG size of input: 99 DAG size of output: 83 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:26:23,633 WARN L227 SmtUtils]: Spent 13.00s on a formula simplification that was a NOOP. DAG size: 81 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:27:42,666 WARN L227 SmtUtils]: Spent 39.12s on a formula simplification. DAG size of input: 98 DAG size of output: 80 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:27:53,597 WARN L227 SmtUtils]: Spent 7.96s on a formula simplification. DAG size of input: 99 DAG size of output: 83 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:28:14,919 WARN L227 SmtUtils]: Spent 8.22s on a formula simplification that was a NOOP. DAG size: 81 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:30:30,519 WARN L227 SmtUtils]: Spent 18.77s on a formula simplification. DAG size of input: 96 DAG size of output: 78 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:30:44,681 WARN L227 SmtUtils]: Spent 7.75s on a formula simplification. DAG size of input: 97 DAG size of output: 81 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:31:06,037 WARN L227 SmtUtils]: Spent 10.54s on a formula simplification that was a NOOP. DAG size: 79 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 23:31:19,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:31:19,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 51 states and 112 transitions. [2021-11-22 23:31:19,163 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 112 transitions. [2021-11-22 23:31:19,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-22 23:31:19,165 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:31:19,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:31:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:31:19,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-22 23:31:19,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 23:32:17,913 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-22 23:32:24,986 WARN L227 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 88 DAG size of output: 57 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)