./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d13cc23-3caf-4945-a862-24a4bba1a3d1/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d13cc23-3caf-4945-a862-24a4bba1a3d1/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d13cc23-3caf-4945-a862-24a4bba1a3d1/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d13cc23-3caf-4945-a862-24a4bba1a3d1/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d13cc23-3caf-4945-a862-24a4bba1a3d1/bin/ukojak-jW3SillKbg/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d13cc23-3caf-4945-a862-24a4bba1a3d1/bin/ukojak-jW3SillKbg --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 b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 --- 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-b5237d8 [2022-11-21 22:15:40,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 22:15:40,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 22:15:40,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 22:15:40,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 22:15:40,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 22:15:40,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 22:15:40,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 22:15:40,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 22:15:40,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 22:15:40,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 22:15:40,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 22:15:40,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 22:15:40,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 22:15:40,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 22:15:40,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 22:15:40,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 22:15:40,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 22:15:40,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 22:15:40,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 22:15:40,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 22:15:40,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 22:15:40,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 22:15:40,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 22:15:40,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 22:15:40,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 22:15:40,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 22:15:40,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 22:15:40,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 22:15:40,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 22:15:40,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 22:15:40,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 22:15:40,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 22:15:40,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 22:15:40,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 22:15:40,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 22:15:40,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 22:15:40,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 22:15:40,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 22:15:40,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 22:15:40,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 22:15:40,200 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d13cc23-3caf-4945-a862-24a4bba1a3d1/bin/ukojak-jW3SillKbg/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-11-21 22:15:40,243 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 22:15:40,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 22:15:40,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 22:15:40,245 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 22:15:40,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 22:15:40,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 22:15:40,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 22:15:40,247 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 22:15:40,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 22:15:40,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 22:15:40,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 22:15:40,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 22:15:40,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 22:15:40,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 22:15:40,250 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 22:15:40,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 22:15:40,251 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 22:15:40,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 22:15:40,251 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 22:15:40,252 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 22:15:40,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 22:15:40,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:15:40,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 22:15:40,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 22:15:40,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 22:15:40,253 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 22:15:40,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 22:15:40,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 22:15:40,255 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_1d13cc23-3caf-4945-a862-24a4bba1a3d1/bin/ukojak-jW3SillKbg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d13cc23-3caf-4945-a862-24a4bba1a3d1/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 [2022-11-21 22:15:40,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 22:15:40,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 22:15:40,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 22:15:40,598 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 22:15:40,599 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 22:15:40,600 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d13cc23-3caf-4945-a862-24a4bba1a3d1/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2022-11-21 22:15:43,786 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 22:15:44,028 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 22:15:44,029 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d13cc23-3caf-4945-a862-24a4bba1a3d1/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2022-11-21 22:15:44,038 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d13cc23-3caf-4945-a862-24a4bba1a3d1/bin/ukojak-jW3SillKbg/data/42d34ff85/935a8cd6de3e42b7938d85e6575c5293/FLAG6e49a91aa [2022-11-21 22:15:44,054 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d13cc23-3caf-4945-a862-24a4bba1a3d1/bin/ukojak-jW3SillKbg/data/42d34ff85/935a8cd6de3e42b7938d85e6575c5293 [2022-11-21 22:15:44,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 22:15:44,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 22:15:44,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 22:15:44,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 22:15:44,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 22:15:44,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:15:44" (1/1) ... [2022-11-21 22:15:44,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c46d5f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:44, skipping insertion in model container [2022-11-21 22:15:44,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:15:44" (1/1) ... [2022-11-21 22:15:44,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 22:15:44,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 22:15:44,232 WARN L237 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_1d13cc23-3caf-4945-a862-24a4bba1a3d1/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2022-11-21 22:15:44,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:15:44,263 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 22:15:44,274 WARN L237 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_1d13cc23-3caf-4945-a862-24a4bba1a3d1/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2022-11-21 22:15:44,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:15:44,299 INFO L208 MainTranslator]: Completed translation [2022-11-21 22:15:44,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:44 WrapperNode [2022-11-21 22:15:44,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 22:15:44,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 22:15:44,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 22:15:44,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 22:15:44,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:44" (1/1) ... [2022-11-21 22:15:44,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:44" (1/1) ... [2022-11-21 22:15:44,338 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 106 [2022-11-21 22:15:44,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 22:15:44,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 22:15:44,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 22:15:44,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 22:15:44,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:44" (1/1) ... [2022-11-21 22:15:44,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:44" (1/1) ... [2022-11-21 22:15:44,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:44" (1/1) ... [2022-11-21 22:15:44,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:44" (1/1) ... [2022-11-21 22:15:44,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:44" (1/1) ... [2022-11-21 22:15:44,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:44" (1/1) ... [2022-11-21 22:15:44,362 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:44" (1/1) ... [2022-11-21 22:15:44,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:44" (1/1) ... [2022-11-21 22:15:44,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 22:15:44,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 22:15:44,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 22:15:44,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 22:15:44,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:44" (1/1) ... [2022-11-21 22:15:44,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:15:44,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d13cc23-3caf-4945-a862-24a4bba1a3d1/bin/ukojak-jW3SillKbg/z3 [2022-11-21 22:15:44,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d13cc23-3caf-4945-a862-24a4bba1a3d1/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 22:15:44,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d13cc23-3caf-4945-a862-24a4bba1a3d1/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 22:15:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 22:15:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 22:15:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 22:15:44,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 22:15:44,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-21 22:15:44,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-21 22:15:44,543 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 22:15:44,547 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 22:15:44,728 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 22:15:44,753 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 22:15:44,754 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 22:15:44,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:15:44 BoogieIcfgContainer [2022-11-21 22:15:44,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 22:15:44,758 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 22:15:44,758 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 22:15:44,769 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 22:15:44,769 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:15:44" (1/1) ... [2022-11-21 22:15:44,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 22:15:44,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:44,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 47 states and 79 transitions. [2022-11-21 22:15:44,834 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 79 transitions. [2022-11-21 22:15:44,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 22:15:44,838 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:44,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:45,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:15:45,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:45,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 49 states and 96 transitions. [2022-11-21 22:15:45,357 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 96 transitions. [2022-11-21 22:15:45,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-21 22:15:45,358 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:45,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:45,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:15:45,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:45,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 49 states and 95 transitions. [2022-11-21 22:15:45,716 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 95 transitions. [2022-11-21 22:15:45,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 22:15:45,717 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:45,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:45,825 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 22:15:45,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:45,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 49 states and 94 transitions. [2022-11-21 22:15:45,913 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 94 transitions. [2022-11-21 22:15:45,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-21 22:15:45,914 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:45,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:46,099 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-21 22:15:46,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:46,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 49 states and 93 transitions. [2022-11-21 22:15:46,287 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 93 transitions. [2022-11-21 22:15:46,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-21 22:15:46,289 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:46,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:46,410 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-21 22:15:46,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:46,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 51 states and 96 transitions. [2022-11-21 22:15:46,580 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 96 transitions. [2022-11-21 22:15:46,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-21 22:15:46,585 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:46,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:46,694 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-21 22:15:46,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:46,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 52 states and 97 transitions. [2022-11-21 22:15:46,729 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 97 transitions. [2022-11-21 22:15:46,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-21 22:15:46,736 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:46,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:46,863 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-21 22:15:46,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:46,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 53 states and 97 transitions. [2022-11-21 22:15:46,880 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 97 transitions. [2022-11-21 22:15:46,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-21 22:15:46,881 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:46,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:46,946 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-21 22:15:46,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:46,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 56 states and 103 transitions. [2022-11-21 22:15:46,995 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 103 transitions. [2022-11-21 22:15:46,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-21 22:15:46,995 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:46,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:47,058 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-21 22:15:47,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:47,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 57 states and 104 transitions. [2022-11-21 22:15:47,085 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 104 transitions. [2022-11-21 22:15:47,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-21 22:15:47,086 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:47,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:47,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:47,160 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-21 22:15:47,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:47,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 59 states and 106 transitions. [2022-11-21 22:15:47,184 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 106 transitions. [2022-11-21 22:15:47,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-21 22:15:47,188 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:47,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:47,232 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-21 22:15:47,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:47,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 62 states and 111 transitions. [2022-11-21 22:15:47,440 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 111 transitions. [2022-11-21 22:15:47,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-21 22:15:47,441 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:47,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:47,550 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-21 22:15:47,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:47,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 62 states and 109 transitions. [2022-11-21 22:15:47,713 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 109 transitions. [2022-11-21 22:15:47,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-21 22:15:47,714 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:47,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:47,828 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-11-21 22:15:47,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:47,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 58 states and 103 transitions. [2022-11-21 22:15:47,980 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 103 transitions. [2022-11-21 22:15:47,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-21 22:15:47,981 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:47,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:48,074 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-21 22:15:48,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:48,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 58 states and 102 transitions. [2022-11-21 22:15:48,194 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 102 transitions. [2022-11-21 22:15:48,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-21 22:15:48,195 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:48,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:48,294 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-21 22:15:48,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:48,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 58 states and 101 transitions. [2022-11-21 22:15:48,753 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 101 transitions. [2022-11-21 22:15:48,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-21 22:15:48,754 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:48,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:48,832 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-21 22:15:48,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:48,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 52 states and 91 transitions. [2022-11-21 22:15:48,902 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 91 transitions. [2022-11-21 22:15:48,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-21 22:15:48,903 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:48,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:49,025 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-21 22:15:49,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:49,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 52 states and 90 transitions. [2022-11-21 22:15:49,086 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 90 transitions. [2022-11-21 22:15:49,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-21 22:15:49,087 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:49,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:49,160 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-21 22:15:49,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:49,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 52 states and 89 transitions. [2022-11-21 22:15:49,223 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 89 transitions. [2022-11-21 22:15:49,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-21 22:15:49,224 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:49,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:49,280 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 43 proven. 4 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-21 22:15:49,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:49,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 54 states and 92 transitions. [2022-11-21 22:15:49,345 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 92 transitions. [2022-11-21 22:15:49,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-21 22:15:49,346 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:49,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:49,410 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 48 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-21 22:15:49,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:49,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 57 states and 97 transitions. [2022-11-21 22:15:49,454 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 97 transitions. [2022-11-21 22:15:49,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-21 22:15:49,454 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:49,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:49,599 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-11-21 22:15:49,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:49,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 57 states and 96 transitions. [2022-11-21 22:15:49,970 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 96 transitions. [2022-11-21 22:15:49,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-21 22:15:49,971 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:49,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:50,157 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-11-21 22:15:50,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:50,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 59 states and 99 transitions. [2022-11-21 22:15:50,852 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 99 transitions. [2022-11-21 22:15:50,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-21 22:15:50,853 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:50,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:51,020 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-11-21 22:15:52,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:52,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 66 states and 114 transitions. [2022-11-21 22:15:52,087 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 114 transitions. [2022-11-21 22:15:52,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-21 22:15:52,089 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:52,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:52,267 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-11-21 22:15:53,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:53,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 72 states and 129 transitions. [2022-11-21 22:15:53,023 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 129 transitions. [2022-11-21 22:15:53,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-21 22:15:53,027 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:53,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:53,106 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 51 proven. 16 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-21 22:15:53,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:53,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 73 states and 130 transitions. [2022-11-21 22:15:53,573 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 130 transitions. [2022-11-21 22:15:53,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-21 22:15:53,574 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:53,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:53,639 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 56 proven. 16 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-11-21 22:15:54,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:54,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 77 states and 139 transitions. [2022-11-21 22:15:54,096 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 139 transitions. [2022-11-21 22:15:54,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-21 22:15:54,098 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:54,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:54,182 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2022-11-21 22:15:54,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:54,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 78 states and 141 transitions. [2022-11-21 22:15:54,224 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 141 transitions. [2022-11-21 22:15:54,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-21 22:15:54,226 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:54,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:54,472 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-11-21 22:15:55,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:55,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 80 states and 145 transitions. [2022-11-21 22:15:55,043 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 145 transitions. [2022-11-21 22:15:55,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-21 22:15:55,044 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:55,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:55,186 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-11-21 22:15:55,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:55,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 84 states and 154 transitions. [2022-11-21 22:15:55,908 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 154 transitions. [2022-11-21 22:15:55,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-21 22:15:55,912 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:55,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:55,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:56,109 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 40 proven. 5 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-11-21 22:15:57,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:57,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 92 states and 170 transitions. [2022-11-21 22:15:57,203 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 170 transitions. [2022-11-21 22:15:57,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-21 22:15:57,204 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:15:57,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:15:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:15:57,392 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-11-21 22:15:58,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:15:58,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 55 states and 93 transitions. [2022-11-21 22:15:58,243 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 93 transitions. [2022-11-21 22:15:58,244 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 22:15:58,244 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 32 iterations. [2022-11-21 22:15:58,252 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-11-21 22:15:58,512 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 22:15:58,516 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 22:15:58,517 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 22:15:58,517 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 22:15:58,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 10:15:58 ImpRootNode [2022-11-21 22:15:58,517 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 22:15:58,518 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 22:15:58,518 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 22:15:58,518 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 22:15:58,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:15:44" (3/4) ... [2022-11-21 22:15:58,522 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 22:15:58,527 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-21 22:15:58,531 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-21 22:15:58,532 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 22:15:58,532 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-21 22:15:58,532 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 22:15:58,585 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d13cc23-3caf-4945-a862-24a4bba1a3d1/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 22:15:58,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 22:15:58,586 INFO L158 Benchmark]: Toolchain (without parser) took 14527.33ms. Allocated memory was 203.4MB in the beginning and 295.7MB in the end (delta: 92.3MB). Free memory was 160.2MB in the beginning and 115.7MB in the end (delta: 44.4MB). Peak memory consumption was 139.8MB. Max. memory is 16.1GB. [2022-11-21 22:15:58,586 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 132.1MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:15:58,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.17ms. Allocated memory is still 203.4MB. Free memory was 160.2MB in the beginning and 149.1MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 22:15:58,587 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.43ms. Allocated memory is still 203.4MB. Free memory was 148.6MB in the beginning and 147.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:15:58,588 INFO L158 Benchmark]: Boogie Preprocessor took 25.89ms. Allocated memory is still 203.4MB. Free memory was 147.0MB in the beginning and 146.0MB in the end (delta: 998.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:15:58,588 INFO L158 Benchmark]: RCFGBuilder took 391.17ms. Allocated memory is still 203.4MB. Free memory was 146.0MB in the beginning and 131.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 22:15:58,589 INFO L158 Benchmark]: CodeCheck took 13759.65ms. Allocated memory was 203.4MB in the beginning and 295.7MB in the end (delta: 92.3MB). Free memory was 131.8MB in the beginning and 118.9MB in the end (delta: 12.9MB). Peak memory consumption was 106.2MB. Max. memory is 16.1GB. [2022-11-21 22:15:58,589 INFO L158 Benchmark]: Witness Printer took 67.55ms. Allocated memory is still 295.7MB. Free memory was 118.9MB in the beginning and 115.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 22:15:58,591 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 2 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.5s, OverallIterations: 32, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5370 SdHoareTripleChecker+Valid, 14.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1143 mSDsluCounter, 4304 SdHoareTripleChecker+Invalid, 11.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1401 mSDsCounter, 2960 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8321 IncrementalHoareTripleChecker+Invalid, 11281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2960 mSolverCounterUnsat, 2903 mSDtfsCounter, 8321 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15344 GetRequests, 15036 SyntacticMatches, 128 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16140 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 1969 NumberOfCodeBlocks, 1969 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 1938 ConstructedInterpolants, 0 QuantifiedInterpolants, 3478 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 17 PerfectInterpolantSequences, 6559/6633 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: 19]: 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: 64]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 132.1MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.17ms. Allocated memory is still 203.4MB. Free memory was 160.2MB in the beginning and 149.1MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.43ms. Allocated memory is still 203.4MB. Free memory was 148.6MB in the beginning and 147.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.89ms. Allocated memory is still 203.4MB. Free memory was 147.0MB in the beginning and 146.0MB in the end (delta: 998.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 391.17ms. Allocated memory is still 203.4MB. Free memory was 146.0MB in the beginning and 131.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 13759.65ms. Allocated memory was 203.4MB in the beginning and 295.7MB in the end (delta: 92.3MB). Free memory was 131.8MB in the beginning and 118.9MB in the end (delta: 12.9MB). Peak memory consumption was 106.2MB. Max. memory is 16.1GB. * Witness Printer took 67.55ms. Allocated memory is still 295.7MB. Free memory was 118.9MB in the beginning and 115.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-21 22:15:58,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d13cc23-3caf-4945-a862-24a4bba1a3d1/bin/ukojak-jW3SillKbg/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