./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/dijkstra-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ce7d09-358d-4640-8d50-e8d8772c3934/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ce7d09-358d-4640-8d50-e8d8772c3934/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ce7d09-358d-4640-8d50-e8d8772c3934/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ce7d09-358d-4640-8d50-e8d8772c3934/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/dijkstra-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ce7d09-358d-4640-8d50-e8d8772c3934/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ce7d09-358d-4640-8d50-e8d8772c3934/bin/ukojak-92XMlrwhuB --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 b586a178399b4c0df2fdcb66faa06566663e0a18b90a5f0ce0551810014ff769 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:55:45,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:55:45,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:55:45,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:55:45,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:55:45,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:55:45,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:55:45,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:55:45,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:55:45,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:55:45,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:55:45,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:55:45,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:55:45,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:55:45,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:55:45,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:55:45,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:55:45,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:55:45,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:55:45,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:55:45,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:55:45,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:55:45,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:55:45,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:55:45,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:55:45,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:55:45,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:55:45,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:55:45,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:55:45,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:55:45,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:55:45,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:55:45,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:55:45,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:55:45,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:55:45,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:55:45,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:55:45,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:55:45,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:55:45,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:55:45,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:55:45,476 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ce7d09-358d-4640-8d50-e8d8772c3934/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:55:45,500 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:55:45,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:55:45,501 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:55:45,502 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:55:45,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:55:45,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:55:45,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:55:45,503 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:55:45,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:55:45,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:55:45,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:55:45,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:55:45,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:55:45,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:55:45,504 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:55:45,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:55:45,505 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:55:45,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:55:45,505 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:55:45,505 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:55:45,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:55:45,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:55:45,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:55:45,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:55:45,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:55:45,507 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:55:45,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:55:45,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:55:45,517 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_72ce7d09-358d-4640-8d50-e8d8772c3934/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ce7d09-358d-4640-8d50-e8d8772c3934/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b586a178399b4c0df2fdcb66faa06566663e0a18b90a5f0ce0551810014ff769 [2022-10-17 16:55:45,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:55:45,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:55:45,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:55:45,874 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:55:45,875 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:55:45,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ce7d09-358d-4640-8d50-e8d8772c3934/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench/dijkstra-u.c [2022-10-17 16:55:45,940 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ce7d09-358d-4640-8d50-e8d8772c3934/bin/ukojak-92XMlrwhuB/data/35434535e/ce5fd7347a0345e89b231ce71f3427d5/FLAG373bb4773 [2022-10-17 16:55:46,367 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:55:46,368 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ce7d09-358d-4640-8d50-e8d8772c3934/sv-benchmarks/c/nla-digbench/dijkstra-u.c [2022-10-17 16:55:46,379 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ce7d09-358d-4640-8d50-e8d8772c3934/bin/ukojak-92XMlrwhuB/data/35434535e/ce5fd7347a0345e89b231ce71f3427d5/FLAG373bb4773 [2022-10-17 16:55:46,741 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ce7d09-358d-4640-8d50-e8d8772c3934/bin/ukojak-92XMlrwhuB/data/35434535e/ce5fd7347a0345e89b231ce71f3427d5 [2022-10-17 16:55:46,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:55:46,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:55:46,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:55:46,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:55:46,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:55:46,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:55:46" (1/1) ... [2022-10-17 16:55:46,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@690d8e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:46, skipping insertion in model container [2022-10-17 16:55:46,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:55:46" (1/1) ... [2022-10-17 16:55:46,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:55:46,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:55:47,030 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_72ce7d09-358d-4640-8d50-e8d8772c3934/sv-benchmarks/c/nla-digbench/dijkstra-u.c[525,538] [2022-10-17 16:55:47,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:55:47,092 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:55:47,110 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_72ce7d09-358d-4640-8d50-e8d8772c3934/sv-benchmarks/c/nla-digbench/dijkstra-u.c[525,538] [2022-10-17 16:55:47,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:55:47,162 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:55:47,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:47 WrapperNode [2022-10-17 16:55:47,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:55:47,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:55:47,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:55:47,164 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:55:47,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:47" (1/1) ... [2022-10-17 16:55:47,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:47" (1/1) ... [2022-10-17 16:55:47,202 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-10-17 16:55:47,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:55:47,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:55:47,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:55:47,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:55:47,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:47" (1/1) ... [2022-10-17 16:55:47,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:47" (1/1) ... [2022-10-17 16:55:47,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:47" (1/1) ... [2022-10-17 16:55:47,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:47" (1/1) ... [2022-10-17 16:55:47,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:47" (1/1) ... [2022-10-17 16:55:47,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:47" (1/1) ... [2022-10-17 16:55:47,231 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:47" (1/1) ... [2022-10-17 16:55:47,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:47" (1/1) ... [2022-10-17 16:55:47,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:55:47,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:55:47,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:55:47,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:55:47,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:55:47" (1/1) ... [2022-10-17 16:55:47,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:55:47,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ce7d09-358d-4640-8d50-e8d8772c3934/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:55:47,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ce7d09-358d-4640-8d50-e8d8772c3934/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:55:47,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ce7d09-358d-4640-8d50-e8d8772c3934/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:55:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:55:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:55:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:55:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:55:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:55:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:55:47,378 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:55:47,380 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:55:47,555 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:55:47,620 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:55:47,621 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 16:55:47,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:55:47 BoogieIcfgContainer [2022-10-17 16:55:47,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:55:47,624 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:55:47,624 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:55:47,637 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:55:47,637 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:55:47" (1/1) ... [2022-10-17 16:55:47,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:55:47,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:55:47,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2022-10-17 16:55:47,793 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2022-10-17 16:55:47,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:55:47,795 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:55:47,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:55:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:55:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:55:47,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 16:55:47,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:55:47,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:55:48,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:55:48,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2022-10-17 16:55:48,035 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2022-10-17 16:55:48,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:55:48,036 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:55:48,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:55:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:55:48,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:55:58,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-10-17 16:56:10,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-10-17 16:56:20,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-10-17 16:56:20,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:56:20,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 28 states and 49 transitions. [2022-10-17 16:56:20,750 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 49 transitions. [2022-10-17 16:56:20,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:56:20,754 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:56:20,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:56:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:56:21,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:56:21,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:56:21,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 30 states and 52 transitions. [2022-10-17 16:56:21,525 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 52 transitions. [2022-10-17 16:56:21,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:56:21,526 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:56:21,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:56:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:56:21,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:56:21,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:56:21,712 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:56:22,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:56:22,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 33 states and 60 transitions. [2022-10-17 16:56:22,150 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 60 transitions. [2022-10-17 16:56:22,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 16:56:22,151 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:56:22,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:56:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:56:22,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 16:56:22,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:56:22,273 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:56:22,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:56:22,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 35 states and 63 transitions. [2022-10-17 16:56:22,652 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 63 transitions. [2022-10-17 16:56:22,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 16:56:22,653 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:56:22,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:56:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:56:22,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 16:56:22,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:56:22,834 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.